1
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Ma N, Leng Y, Sui K, Wang P, Jiang S, Wu Y. Synthesis of Sulfone Methylene-Substituted Indolines by Radical Cascade Cyclization of 2-Alkynylaniline Derivatives. J Org Chem 2024; 89:10678-10683. [PMID: 39013075 DOI: 10.1021/acs.joc.4c00908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
A radical cascade cyclization of 2-alkynylaniline derivatives with sulfonyl chlorides was developed to construct C3-sulfone methylene-substituted indolines in yields of 21 to 85% with a broad substrate scope under metal- and base-free conditions. This protocol could simultaneously build three new chemical bonds and employ a solvent-radical relay strategy, providing a rapid and concise approach toward an indoline framework. Scale-up reactions of this method and further transformations to afford useful indolines were also demonstrated.
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Affiliation(s)
- Ning Ma
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R China
| | - Yuting Leng
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R China
| | - Kaixia Sui
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R China
| | - Panpan Wang
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R China
| | - Shiliang Jiang
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R China
| | - Yangjie Wu
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450052, P. R China
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2
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Hao E, Kong X, Xu T, Zeng F. Synthesis of indolines via palladium-catalyzed [4 + 1] annulation of (2-aminophenyl)methanols with sulfoxonium ylides. Org Biomol Chem 2024. [PMID: 39041823 DOI: 10.1039/d4ob00983e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
A facile strategy for the synthesis of valuable indolines has been developed, involving a palladium(II)/Brønsted acid co-catalyzed annulation of readily available (2-aminophenyl)methanols and sulfoxonium ylides. This protocol allows for the direct utilization of the OH group as a leaving group, tolerates alkyl and aryl groups on the N atom of the aniline moiety, operates under mild reaction conditions, and exhibits good efficiency.
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Affiliation(s)
- Erxiao Hao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi'an, Shaanxi, 710127, P. R. China.
| | - Xiaomei Kong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi'an, Shaanxi, 710127, P. R. China.
| | - Tongyu Xu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi'an, Shaanxi, 710127, P. R. China.
| | - Fanlong Zeng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi'an, Shaanxi, 710127, P. R. China.
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3
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Zeng H, Wen G, Lin L, Feng X. Asymmetric dearomatization of benzyl 1-naphthyl ethers via [1,3] O-to-C rearrangement. Chem Commun (Camb) 2024; 60:7507-7510. [PMID: 38949684 DOI: 10.1039/d4cc02620a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
A catalytic asymmetric dearomatization reaction of benzyl 1-naphthyl ethers accelerated by a chiral N,N'-dioxide/Co(II) complex is disclosed. The reaction proceeds via an enantioselective [1,3] O-to-C rearrangement through a tight ion-pair pathway, providing a wide array of α-naphthalenone derivatives bearing an all-carbon quaternary center in high yields with excellent ee values.
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Affiliation(s)
- Hongkun Zeng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Gang Wen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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4
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Hou L, Yang L, Yang G, Luo Z, Xiao W, Yang L, Wang F, Gong LZ, Liu X, Cao W, Feng X. Catalytic Asymmetric Dearomative [2 + 2] Photocycloaddition/Ring-Expansion Sequence of Indoles with Diversified Alkenes. J Am Chem Soc 2024. [PMID: 38993029 DOI: 10.1021/jacs.4c06780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Developing novel strategies for catalytic asymmetric dearomatization (CADA) reactions is highly valuable. Visible light-mediated photocatalysis is demonstrated to be a powerful tool to activate aromatic compounds for further synthetic transformations. Herein, a catalytic asymmetric dearomative [2 + 2] photocycloaddition/ring-expansion sequence of indoles with simple alkenes was reported, providing a facile access to enantioenriched cyclopenta[b]indoles with good to high yields and enantioselectivities by means of chiral lanthanide photocatalysis. This protocol exhibited a broad substrate scope and good functional group tolerance, as well as potential applications in the synthesis of bioactive molecules. Mechanistic studies, including control experiments, UV-vis absorption spectroscopy, emission spectroscopy, and DFT calculations, were carried out, shedding insights into the reaction mechanism and the origin of enantioselectivity.
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Affiliation(s)
- Liuzhen Hou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Longqing Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Gaofei Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zhe Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wanlong Xiao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Linhan Yang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610061, China
| | - Fei Wang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610061, China
| | - Liu-Zhu Gong
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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5
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Wang L, Lv J, Zhang Y, Yang D. Asymmetric magnesium catalysis for important chiral scaffold synthesis. Org Biomol Chem 2024; 22:4778-4800. [PMID: 38809153 DOI: 10.1039/d4ob00521j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Magnesium catalysts are widely used in catalytic asymmetric reactions, and a series of catalytic strategies have been developed in recent years. Herein, in this review, we have tried to summarize asymmetric magnesium catalysis for the synthesis of important chiral scaffolds. Several important optically active motifs that are present in classic chiral ligands or natural products synthesized by Mg(II) catalytic methods are briefly discussed. Moreover, the representative mechanisms for different magnesium catalytic strategies, including in situ generated magnesium catalysts, are also shown in relation to synthetic routes for obtaining these important chiral scaffolds.
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Affiliation(s)
- Linqing Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, China.
| | - Jiaming Lv
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, China.
| | - Yongshuo Zhang
- Scientific Research and Innovation Expert Studio of China Inspection and Certification Group Liaoning Co., Ltd, Dalian, 116039, China
| | - Dongxu Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, China.
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6
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Ji P, Duan K, Li M, Wang Z, Meng X, Zhang Y, Wang W. Photochemical dearomative skeletal modifications of heteroaromatics. Chem Soc Rev 2024; 53:6600-6624. [PMID: 38817197 PMCID: PMC11181993 DOI: 10.1039/d4cs00137k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Indexed: 06/01/2024]
Abstract
Dearomatization has emerged as a powerful tool for rapid construction of 3D molecular architectures from simple, abundant, and planar (hetero)arenes. The field has evolved beyond simple dearomatization driven by new synthetic technology development. With the renaissance of photocatalysis and expansion of the activation mode, the last few years have witnessed impressive developments in innovative photochemical dearomatization methodologies, enabling skeletal modifications of dearomatized structures. They offer truly efficient and useful tools for facile construction of highly complex structures, which are viable for natural product synthesis and drug discovery. In this review, we aim to provide a mechanistically insightful overview on these innovations based on the degree of skeletal alteration, categorized into dearomative functionalization and skeletal editing, and to highlight their synthetic utilities.
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Affiliation(s)
- Peng Ji
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, USA.
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.
| | - Kuaikuai Duan
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, USA
| | - Menglong Li
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Science, School of Basic Medicinal Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Zhiyuan Wang
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiang Meng
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, USA.
| | - Yueteng Zhang
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Science, School of Basic Medicinal Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Wei Wang
- Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, USA.
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7
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Steiner L, Achazi AJ, Kelterer AM, Paulus B, Reissig HU. Diastereoselective Dearomatizing Cyclizations of 5-Arylpentan-2-ones by Samarium Diiodide - A Computational Analysis. Chemistry 2024; 30:e202401120. [PMID: 38512639 DOI: 10.1002/chem.202401120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 03/23/2024]
Abstract
This study analyzes the samarium diiodide-promoted cyclizations of 5-arylpentan-2-ones to dearomatized bicyclic products utilizing density functional theory. The reaction involves a single electron transfer to the carbonyl group, which occurs synchronously with the rate determining cyclization event, and a second subsequent proton-coupled electron transfer. These redox reactions are accurately computed employing small core pseudo potentials explicitly involving all f-electrons of samarium. Comparison of the energies of the possible final products rules out thermodynamic control of the observed regio- and diastereoselectivities. Kinetic control via appropriate transition states is correctly predicted, but to obtain reasonable energy levels the influence of the co-solvent hexamethylphosphortriamide has to be estimated by using a correction term. The steric effect of the bulky samarium ligands is decisive for the observed stereoselectivity. Carbonyl groups in para-position of the aryl group change the regioselectivity of the cyclization and lead to spiro compounds. The computations suggest again kinetic control of this deviating outcome. However, the standard mechanism has to be modified and the involvement of a complex activated by two SmI2 moieties is proposed in which two electrons are transferred simultaneously to form the new C-C bond. Computation of model intermediates show the feasibility of this alternative+ mechanism.
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Affiliation(s)
- Luca Steiner
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
- Institut für Physikalische und Theoretischen Chemie, Technische Universität Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Andreas J Achazi
- Physikalisch-Chemisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
- Zentrum für Materialforschung, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392, Gießen, Germany
| | - Anne-Marie Kelterer
- Institut für Physikalische und Theoretischen Chemie, Technische Universität Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Beate Paulus
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
| | - Hans-Ulrich Reissig
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195, Berlin, Germany
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8
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Wang ZH, Fu XH, Li Q, You Y, Yang L, Zhao JQ, Zhang YP, Yuan WC. Recent Advances in the Domino Annulation Reaction of Quinone Imines. Molecules 2024; 29:2481. [PMID: 38893357 PMCID: PMC11173866 DOI: 10.3390/molecules29112481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/20/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Quinone imines are important derivatives of quinones with a wide range of applications in organic synthesis and the pharmaceutical industry. The attack of nucleophilic reagents on quinone imines tends to lead to aromatization of the quinone skeleton, resulting in both the high reactivity and the unique reactivity of quinone imines. The extreme value of quinone imines in the construction of nitrogen- or oxygen-containing heterocycles has attracted widespread attention, and remarkable advances have been reported recently. This review provides an overview of the application of quinone imines in the synthesis of cyclic compounds via the domino annulation reaction.
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Affiliation(s)
- Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Xiao-Hui Fu
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Qun Li
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China;
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Lei Yang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China; (X.-H.F.); (Y.Y.); (L.Y.); (J.-Q.Z.); (Y.-P.Z.)
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9
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Lu G, Xiao L, Que Q, Leng T, Li J, Guo Y, Fan B. Metal-Free Enantioselective 1,4-Addition of Diarylphosphine Oxides to α,β-Unsaturated Carboxylic Esters. J Org Chem 2024. [PMID: 38781561 DOI: 10.1021/acs.joc.4c00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The catalytic asymmetric conjugate addition of phosphorus nucleophiles to unsaturated compounds, catalyzed by metallic or nonmetallic catalysts, has been extensively developed. However, the enantioselective transformations involving α,β-unsaturated carboxylic esters for constructing chiral c-p bonds have been rarely reported, particularly in metal-free processes. In this study, we present a novel metal-free methodology for enantioselective 1,4-addition of diarylphosphine oxides to α,β-unsaturated carboxylic esters using classical chiral oxazaborolidine catalysts. Remarkably high yields and enantioselectivities were obtained for most of the products. Furthermore, these valuable chiral phosphorus esters serve as crucial intermediates that can be transformed into various derivatives including amides, acids, and alcohols in a single step.
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Affiliation(s)
- Guangfu Lu
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
| | - Liangrui Xiao
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
| | - Qitao Que
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
| | - Tao Leng
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
| | - Jiuling Li
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
| | - Yafei Guo
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
| | - Baomin Fan
- Yunnan Key Laboratory of Chiral Functional Substance Research and Application, Yunnan Minzu University, 2929 Yuehua Road, Kunming 650500, China
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10
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Chen J, Yang J, Zhang M. Divergent Synthesis of Cyclopropanated Tetrahydroquinolines by Tandem Functionalization of Quinoline Derivatives. J Org Chem 2024. [PMID: 38754033 DOI: 10.1021/acs.joc.4c00783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Here, reported is a new method for divergent synthesis of functionalized tetrahydroquinolines (THQs), featuring a biomedically interesting azabicyclo[4.1.0]heptane core, proceeding with mild conditions, good substrate and functionality tolerance, and operational simplicity. Mechanistic studies suggest that the products are formed via carbonucleophilic 1,4-addition-induced dearomatization of quinolinium salts and intramolecular cyclopropanation with α-halo ketones followed by α-nucleophilic addition with different nucleophiles. The present work lays a foundation to access new N-heterocycles via the dearomative tandem functionalization of azaarenes.
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Affiliation(s)
- Jianjie Chen
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China
| | - Jian Yang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China
| | - Min Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou 510641, P. R. China
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11
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Xiao Y, Zhao ZY, Kemper S, Irran E, Oestreich M. Enantioselective Dearomatization of Pyridinium Salts by Copper-Catalyzed C4-Selective Addition of Silicon Nucleophiles. Angew Chem Int Ed Engl 2024:e202407056. [PMID: 38728222 DOI: 10.1002/anie.202407056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024]
Abstract
A copper-catalyzed C4-selective addition of silicon nucleophiles released from an Si-B reagent to prochiral pyridinium triflates is reported. The dearomatization proceeds with excellent enantioselectivity using Cu(CH3CN)4PF6 as the precatalyst and (R,R)-Ph-BPE (1,2-bis[(2R,5R)-2,5-diphenylphospholan-1-yl]ethane) as the chiral ligand. A carbonyl group at C3 is required for this, likely acting a weak donor group to preorganize and direct the nucleophilic attack towards C4. The resulting 4-silylated 1,4-dihydropyridines can be further converted into functionalized piperidine derivatives.
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Affiliation(s)
- Yao Xiao
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Zhi-Yuan Zhao
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Sebastian Kemper
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Elisabeth Irran
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
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12
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Wang WY, Yi ZY, Wang ZF, Dong XQ, Wang CJ. Iridium-catalyzed asymmetric cascade dearomative allylation/acyl transfer rearrangement: access to chiral N-substituted 2-pyridones. Chem Commun (Camb) 2024; 60:5086-5089. [PMID: 38639097 DOI: 10.1039/d4cc00944d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Iridium-catalyzed dearomative allylation/acyl transfer rearrangement has been developed using easily available 2-pyridinyl benzoates and vinyl ethylene carbonate. This protocol enabled the expedient synthesis of a variety of chiral N-substituted 2-pyridones in good to high yields with excellent enantioselectivity. It has the advantages of high atom economy, wide substrate scope, gram-scale synthesis, and versatile synthetic transformations.
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Affiliation(s)
- Wei-Yi Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.
| | - Zhi-Yuan Yi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.
| | - Zuo-Fei Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230021, China
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13
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You X, Yao Y, Liu P, Chen L, Xie Y, Li G, Hong L. Synthesis of Isoquinuclidines via Dearomative Diels-Alder Reaction of Cyclic Amidines with Indoles. J Org Chem 2024; 89:3635-3643. [PMID: 38359465 DOI: 10.1021/acs.joc.3c02736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
The development and utilization of new dienes and dienophiles for the controlled synthesis of isoquinuclidines is highly appealing. Herein, we describe a novel strategy for diastereoselective synthesis of indoline-fused isoquinuclidines via copper-catalyzed dearomative Diels-Alder reaction of cyclic amidines with indoles. This protocol avoids the use of unstable DHPs and activated alkenes, offering a more efficient and selective approach to synthesize isoquinuclidines.
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Affiliation(s)
- Xiaobin You
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ying Yao
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Pengyutian Liu
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Lu Chen
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Yubao Xie
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Guofeng Li
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Liang Hong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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14
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Ge JC, Wang Y, Guo FW, Kong X, Hu F, Li SS. Dearomatization of 3-Aminophenols for Synthesis of Spiro[chromane-3,1'-cyclohexane]-2',4'-dien-6'-ones via Hydride Transfer Strategy-Enabled [5+1] Annulations. Molecules 2024; 29:1012. [PMID: 38474524 DOI: 10.3390/molecules29051012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
The Sc(OTf)3-catalyzed dearomative [5+1] annulations between readily available 3-aminophenols and O-alkyl ortho-oxybenzaldehydes were developed for synthesis of spiro[chromane-3,1'-cyclohexane]-2',4'-dien-6'-ones. The "two-birds-with-one-stone" strategy was disclosed by the dearomatization of phenols and direct α-C(sp3)-H bond functionalization of oxygen through cascade condensation/[1,5]-hydride transfer/dearomative-cyclization process. In addition, the antifungal activity assay and derivatizations of products were conducted to further enrich the utility of the structure.
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Affiliation(s)
- Jia-Cheng Ge
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- Hailir Pesticides and Chemicals Group Co., Ltd., Qingdao 266109, China
| | - Yufeng Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Feng-Wei Guo
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiangyun Kong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Fangzhi Hu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- Hailir Pesticides and Chemicals Group Co., Ltd., Qingdao 266109, China
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15
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Wang JY, Gao CH, Ma C, Wu XY, Ni SF, Tan W, Shi F. Design and Catalytic Asymmetric Synthesis of Furan-Indole Compounds Bearing both Axial and Central Chirality. Angew Chem Int Ed Engl 2024; 63:e202316454. [PMID: 38155472 DOI: 10.1002/anie.202316454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 12/30/2023]
Abstract
In the chemistry community, catalytic asymmetric synthesis of furan-based compounds bearing both axial and central chirality has proven to be a significant but challenging issue owing to the importance and difficulty in constructing such frameworks. In this work, we have realized the first catalytic asymmetric synthesis of five-five-membered furan-based compounds bearing both axial and central chirality via organocatalytic asymmetric (2+4) annulation of achiral furan-indoles with 2,3-indolyldimethanols with uncommon regioselectivity. By this strategy, furan-indole compounds bearing both axial and central chirality were synthesized in high yields with excellent regio-, diastereo-, and enantioselectivities. Moreover, theoretical calculations were conducted to provide an in-depth understanding of the reaction pathway, activation mode, and the origin of the selectivity.
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Affiliation(s)
- Jing-Yi Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Cong-Hui Gao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Cheng Ma
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, China
| | - Xin-Yue Wu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, China
| | - Wei Tan
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
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16
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Mirzaie A, Shiri L, Kazemi M, Sadeghifard N, Kaviar VH. Nanomagnetic CoFe 2O 4@SiO 2-EA-H 3PO 4 as a zwitterionic catalyst for the synthesis of bioactive pyrazolopyranopyrimidines and dihydropyrano[2,3- c]pyrazoles. NANOSCALE ADVANCES 2024; 6:1227-1240. [PMID: 38356634 PMCID: PMC10863708 DOI: 10.1039/d3na00900a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/21/2024] [Indexed: 02/16/2024]
Abstract
This study presents the development of a phosphoric acid-based zwitterionic catalyst immobilized on CoFe2O4 nanoparticles [CoFe2O4@SiO2-EA-H3PO4]. The structure of the nanocatalyst CoFe2O4@SiO2-EA-H3PO4 was identified by applying several spectroscopic techniques, i.e. FT-IR, SEM, TEM, XRD, EDX, elemental Mapping, VSM, TGA, and BET techniques. The catalytic efficiency of CoFe2O4@SiO2-EA-H3PO4 was evaluated in the water-based multicomponent synthesis of pyrazolopyranopyrimidine and dihydropyrano[2,3-c]pyrazole derivatives. Subsequently, an exploration of the antibacterial properties of the compounds was conducted. The catalytic system offers several advantages, encompassing high efficiency, brief reaction duration, uncomplicated operation, and facile recycling of the catalyst.
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Affiliation(s)
- Ali Mirzaie
- Department of Chemistry, Faculty of Basic Sciences, Ilam University P. O. Box 69315-516 Ilam Iran
| | - Lotfi Shiri
- Department of Chemistry, Faculty of Basic Sciences, Ilam University P. O. Box 69315-516 Ilam Iran
| | - Mosstafa Kazemi
- Department of Chemistry, Faculty of Basic Sciences, Ilam University P. O. Box 69315-516 Ilam Iran
| | - Nourkhoda Sadeghifard
- Clinical Microbiology Research Center, Ilam University of Medical Sciences Ilam Iran
| | - Vahab Hassan Kaviar
- Clinical Microbiology Research Center, Ilam University of Medical Sciences Ilam Iran
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17
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Zhang C, Chen Q, Qin Y, Bu Z, Wang Q. Solvent-controlled halohydroxylation or C3-C2 coupling of pyridinium salts through an interrupted dearomative reduction. Chem Commun (Camb) 2024; 60:992-995. [PMID: 38168667 DOI: 10.1039/d3cc05212e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Herein, we report an efficient and easily operable method to halohydroxylate pyridiniums through an interrupted dearomative reduction strategy. In this process, we make the most of the halide anion from the pyridinium salts by performing the reaction in DMSO without the need of external HX added. Notably, by changing the solvents from DMSO into Et2O, the bimolecular C3-C2 coupling occurs successfully.
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Affiliation(s)
- Congcong Zhang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
| | - Qinhao Chen
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
| | - Yunlong Qin
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
| | - Zhanwei Bu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
| | - Qilin Wang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
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18
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Liu CY, Zhao J, Pan CX, Mo DL, Ma XP, Huang WY. Copper(I)-Catalyzed Dearomatization of Benzofurans with 2-(Chloromethyl)anilines through Radical Addition and Cyclization Cascade. Org Lett 2024. [PMID: 38190623 DOI: 10.1021/acs.orglett.3c03964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Herein, we described a copper(I)-catalyzed dearomatization of benzofurans with 2-(chloromethyl)anilines to prepare various tetrahydrobenzofuro[3,2-b]quinolines and 2-(quinolin-2-yl)phenols in good to excellent yields through radical addition and an intramolecular cyclization process. Mechanistic studies revealed that 2-(chloromethyl)anilines served as radical precursors. The present method features broad substrate scope, good functional group tolerance, quinoline scaffold diversity, and radical addition dearomatization of benzofurans.
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Affiliation(s)
- Chong-Yu Liu
- Guangxi Key Laboratory of Drug Discovery and Optimization, Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guilin Medical University, 1 Zhi Yuan Road, Guilin 541199, China
| | - Jin Zhao
- Guangxi Key Laboratory of Drug Discovery and Optimization, Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guilin Medical University, 1 Zhi Yuan Road, Guilin 541199, China
| | - Cheng-Xue Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Xiao-Pan Ma
- Guangxi Key Laboratory of Drug Discovery and Optimization, Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guilin Medical University, 1 Zhi Yuan Road, Guilin 541199, China
| | - Wan-Yun Huang
- Guangxi Key Laboratory of Drug Discovery and Optimization, Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guilin Medical University, 1 Zhi Yuan Road, Guilin 541199, China
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19
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Song TT, Mei YK, Liu Y, Wang XY, Guo SY, Ji DW, Wan B, Yuan W, Chen QA. Construction of Bridged Benzazepines via Photo-Induced Dearomatization. Angew Chem Int Ed Engl 2024; 63:e202314304. [PMID: 38009446 DOI: 10.1002/anie.202314304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/24/2023] [Accepted: 11/24/2023] [Indexed: 11/28/2023]
Abstract
Bridged benzazepine scaffolds, possessing unique structural and physicochemical activities, are widespread in various natural products and drugs. The construction of these skeletons often requires elaborate synthetic effort with low efficiency. Herein, we develop a simple and divergent approach for constructing various bridged benzazepines by a photocatalytic intermolecular dearomatization of naphthalene derivatives with readily available α-amino acids. The bridged motif is created via a cascade sequence involving photocatalytic 1,4-hydroaminoalkylation, alkene isomerization and cyclization. Interestingly, the diastereoselectivity can be regulated through different reaction modes in the cyclization step. Moreover, aminohydroxylation and its further bromination have also been demonstrated to access highly functionalized bridged benzazepines. Preliminary mechanistic studies have been performed to get insights into the mechanism. This method provides a divergent synthetic approach for construction of highly functionalized bridged benzazepines, which have been otherwise difficult to access.
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Affiliation(s)
- Ting-Ting Song
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yong-Kang Mei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Yu Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shi-Yu Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Weiming Yuan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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20
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Song X, Qin W, Wang X, Luo G, Ni Q. Bifunctional Squaramide-Catalyzed Asymmetric Cascade Reaction of Benzothiazoles with 2-Nitroallylic Acetates or Nitroenynes. Org Lett 2023; 25:9164-9169. [PMID: 38097282 DOI: 10.1021/acs.orglett.3c03692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
We describe here an organocatalytic asymmetric cascade formal [3 + 3] cycloaddition of benzothiazoles with 2-nitroallylic acetates and nitroenynes. This dearomative methodology provided a facile and efficient strategy for the construction of a broad range of valuable benzothiazolopyridines bearing two adjacent stereogenic centers in moderate to good yields with good to excellent stereocontrol.
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Affiliation(s)
- Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Wei Qin
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Xuyang Wang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
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21
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Luo J, Luo Z, Zhang B, Zhao Q, Liu L, Liu Y. B(C 6 F 5 ) 3 -Catalyzed [2+3]-Cyclative o,m-diC-H Functionalization of Phenols. Chemistry 2023; 29:e202301595. [PMID: 37759356 DOI: 10.1002/chem.202301595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/10/2023] [Accepted: 09/21/2023] [Indexed: 09/29/2023]
Abstract
Metal-free catalytic C-H functionalization is highly desired for the construction of C-C bonds. We herein report a highly chemoselective consecutive C-H [2+3]-cyclative functionalization for the simultaneous formation of two C-C bonds with construction of polycyclic phenols catalyzed by commercially available and low-cost B(C6 F5 )3 . This catalytic system tolerates a wide range of substrate scope, providing a series of 2,6,7,8-tetrahydroacenaphthylen-3-ol-type polycyclic compounds efficiently. Several derivatizations of the catalytic products have also been conducted to show the potential application of this method in synthesis of polycyclic compounds.
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Affiliation(s)
- Jingyan Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhou Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Biqi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Qiuyu Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yuanyuan Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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22
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Chen XH, Li YM, Huang X, Cui HL. POCl 3/Sulfoxide-Promoted Synthesis of Indolizino[8,7- b]indoles. J Org Chem 2023; 88:16400-16409. [PMID: 37983977 DOI: 10.1021/acs.joc.3c01912] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
A mild chlorocyclization of pyrrole-tethered indoles has been realized using POCl3 as the chlorine source and tetramethylene sulfoxide as the promoter. A variety of chlorinated indolizino[8,7-b]indole derivatives have been constructed efficiently under this reaction system in moderate to good yields (19 examples, up to 93% yield).
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Affiliation(s)
- Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
| | - Yun-Meng Li
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
| | - Xiang Huang
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, P.R. China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
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23
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Sun YZ, Ren ZY, Yang YX, Liu Y, Lin GQ, He ZT. Asymmetric Substitution by Alkynyl Copper Driven Dearomatization and Rearomatization. Angew Chem Int Ed Engl 2023; 62:e202314517. [PMID: 37843815 DOI: 10.1002/anie.202314517] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 10/17/2023]
Abstract
Catalytic asymmetric transformations by dearomatization have developed into a widely applicable synthetic strategy, but heavily relied on the use of arenes bearing a heteroatom. In this case, the dearomatization is facilitated by the involvement of a p-orbital electron of the heteroatom. Different from the conventional substrate-dependent model, here we demonstrate that the activation by a d-orbital electron of the transition-metal center can serve as a driving force for dearomatization, and is applied to the development of a novel asymmetric alkynyl copper facilitated remote substitution reaction. A newly modified PyBox chiral ligand enables the construction of valuable diarylmethyl and triarylmethyl skeletons in high enantioselectivities. An unexpected tandem process involving sequential remote substitution/cyclization/1,5-H shift leads to the formation of the enantioenriched C-N axis. A gram-scale reaction and various downstream transformations highlight the robustness of this method and the potential transformations of the products. Preliminary mechanistic studies reveal a mononuclear Cu-catalyzed remote substitution process.
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Affiliation(s)
- Yu-Ze Sun
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- Department of Chemistry, Shanghai Normal University, Shanghai, 200234, China
| | - Zi-Yang Ren
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yuan-Xiang Yang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yang Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- Department of Chemistry, Shanghai Normal University, Shanghai, 200234, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Zhi-Tao He
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
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24
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Maestro A, Nagy BS, Ötvös SB, Kappe CO. A Telescoped Continuous Flow Enantioselective Process for Accessing Intermediates of 1-Aryl-1,3-diols as Chiral Building Blocks. J Org Chem 2023; 88:15523-15529. [PMID: 37844195 PMCID: PMC10629223 DOI: 10.1021/acs.joc.3c02040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
A telescoped continuous flow process is reported for the enantioselective synthesis of chiral precursors of 1-aryl-1,3-diols, intermediates in the synthesis of ezetimibe, dapoxetine, duloxetine, and atomoxetine. The two-step sequence consists of an asymmetric allylboration of readily available aldehydes using a polymer-supported chiral phosphoric acid catalyst to introduce asymmetry, followed by selective epoxidation of the resulting alkene. The process is highly stable for at least 7 h and represents a transition-metal free enantioselective approach to valuable 1-aryl-1,3-diols.
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Affiliation(s)
- Aitor Maestro
- Department of Organic Chemistry I, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
| | - Bence S Nagy
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
| | - Sándor B Ötvös
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), A-8010 Graz, Austria
| | - C Oliver Kappe
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), A-8010 Graz, Austria
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25
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Huang X, Yu AN, Yang D, Gao X, Liang ST, Pei SC, Cui HL. Iron-Catalyzed Synthesis of Peroxylpyrrolo[2,1- a]isoquinolines through Oxidative Dearomatization. J Org Chem 2023; 88:15326-15334. [PMID: 37878683 DOI: 10.1021/acs.joc.3c01824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
A mild late-stage modification of pyrrolo[2,1-a]isoquinolines was established through iron-catalyzed oxidative dearomatization and peroxidation. Peroxylated pyrroloisoquinolines have been prepared readily with hydroperoxide in low to good yields (up to 72%) at room temperature. Interestingly, the treatment of fully aromatized pyrrolo[1,2-a]quinolines under the current reaction system resulted in the formation of ring-opening products.
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Affiliation(s)
- Xiang Huang
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, P.R. China
| | - An-Ni Yu
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - De Yang
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Xin Gao
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Shu-Ting Liang
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Shu-Chen Pei
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, P.R. China
| | - Hai-Lei Cui
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
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26
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Cayla M, Sonet D, Tarayre E, Bapt R, Bibal B. Tandem Oxidative Dearomatizations of Diphenylanthracene Atropisomers. J Org Chem 2023; 88:13067-13075. [PMID: 37673031 DOI: 10.1021/acs.joc.3c01252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
The first examples of tandem oxidative dearomatizations of 9,10-diphenylanthracene atropisomers with ortho,ortho'- formyl substituents are presented. In the presence of KMnO4, their stereoselective tandem double oxidation and spirocyclization mainly afford the syn or anti dearomatized 9,10-diphthalide anthracenes. Using Pinnick's reagent and depending on the conditions, the oxidation can mainly lead to the corresponding syn or anti diacids in good yields or to three oxidation products. An unprecedented further oxidative ring expansion toward dibenzo[b,e]oxepines is also reported.
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Affiliation(s)
- Mattéo Cayla
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Dorian Sonet
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Emilien Tarayre
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Romain Bapt
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Brigitte Bibal
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
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27
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Zhang JY, Chen JY, Gao CH, Yu L, Ni SF, Tan W, Shi F. Asymmetric (4+n) Cycloadditions of Indolyldimethanols for the Synthesis of Enantioenriched Indole-Fused Rings. Angew Chem Int Ed Engl 2023; 62:e202305450. [PMID: 37345905 DOI: 10.1002/anie.202305450] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 06/23/2023]
Abstract
Catalytic asymmetric construction of chiral indole-fused rings has become an important issue in the chemical community because of the significance of such scaffolds. In this work, we have accomplished the first catalytic asymmetric (4+2) and (4+3) cycloadditions of 2,3-indolyldimethanols by using indoles and 2-naphthols as suitable reaction partners under the catalysis of chiral phosphoric acids, constructing enantioenriched indole-fused six-membered and seven-membered rings in high yields with excellent enantioselectivities. In addition, this approach is used to realize the first enantioselective construction of challenging tetrahydroindolocarbazole scaffolds, which are found to show promising anticancer activity. More importantly, theoretical calculations of the reaction pathways and activation mode offer an in-depth understanding of this class of indolylmethanols. This work not only settles the challenges in realizing catalytic asymmetric cycloadditions of indolyldimethanols but also provides a powerful strategy for the construction of enantioenriched indole-fused rings.
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Affiliation(s)
- Jia-Yi Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Jia-Yi Chen
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, 515063, Shantou, China
| | - Cong-Hui Gao
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Lei Yu
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, 515063, Shantou, China
| | - Wei Tan
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
- School of Petrochemical Engineering, Changzhou University, 213164, Changzhou, China
- School of Chemistry and Chemical Engineering, Henan Normal University, 453007, Xinxiang, China
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28
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Ouyang JY, Shen FF, Zhao HQ, Chen JJ, Wen ZD, Jiang HM, Qin JH, Sun Q, Li JH, Ouyang XH. Aryldiazonium Salt-Triggered [2 + 2 + 1] Heteroannulation of Indoles by an Arylhydrazone Radical-Relayed 1,5-Hydrogen Atom Transfer. Org Lett 2023; 25:6549-6554. [PMID: 37615297 DOI: 10.1021/acs.orglett.3c02373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
An unprecedented three-component [2 + 2 + 1] annulation cascade of indoles with aryldiazonium salts and polyhalomethanes or acetone is presented by dual hydrogen atom transfer (HAT) and C-H functionalization. By employing readily accessible aryldiazonium salts as the radical initiators and electrophiles and polyhalomethanes and acetone as the C1 units, this method unprecedentedly constructs a pyrazole ring on an indole ring skeleton through the formation of two C-N bonds and a C-C bond in a single reaction.
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Affiliation(s)
- Jun-Yao Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Fang-Fang Shen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Han-Qing Zhao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jia-Jie Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Zhu-Dong Wen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Hui-Min Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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29
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Hu YY, Xu XQ, Deng WC, Liang RX, Jia YX. Nickel-Catalyzed Enantioselective Dearomative Heck-Reductive Allylic Defluorination Reaction of Indoles. Org Lett 2023; 25:6122-6127. [PMID: 37578397 DOI: 10.1021/acs.orglett.3c02092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Herein, we describe a nickel-catalyzed asymmetric dearomative aryl-difluoroallylation reaction of indoles with α-trifluoromethyl alkenes as an electrophilic coupling partner. The reaction proceeds via a cascade sequence involving dearomative Heck cyclization and reductive allylic defluorination. A series of gem-difluoroallyl substituted indolines are obtained in moderate to good yields (36-77% yield) with excellent enantioselectivity (up to 99% ee). The reaction features broad functional group tolerance, scaled-up synthesis, and late-stage diversification.
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Affiliation(s)
- Yuan-Yuan Hu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China
| | - Xiao-Qiu Xu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China
| | - Wei-Chao Deng
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China
| | - Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou, 310014, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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30
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Ye Z, Liu W, Gu H, Yang X. Enantioselective Dearomatization of Substituted Phenols via Organocatalyzed Electrophilic Amination. Org Lett 2023; 25:5838-5843. [PMID: 37523610 DOI: 10.1021/acs.orglett.3c02100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Highly efficient and stereoselective dearomatization of substituted phenols was achieved via chiral phosphoric acid-catalyzed electrophilic para-amination with commercially available azodicarboxylates. This protocol readily afforded a series of chiral 2,5-cyclohexadienones bearing 4-aza-quaternary stereocenters with excellent yields and enantioselectivities (≤99% yield and >99% ee). Easy scale-up of this reaction to a gram scale and diverse derivatizations of the chiral products into α-tertiary amines and α-tertiary heterocycles derivatives well demonstrated the potential of this method.
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Affiliation(s)
- Zidan Ye
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Huanchao Gu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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31
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Huang C, Jin Z, Zhang B, Zhou Y, Lin H, Kang H, Shen G, Lv X. One-pot synthesis of 4-(imidazol-1-yl)indole derivatives through a sequential dearomatization and Ag-catalyzed cyclization/Cs 2CO 3-mediated addition/aromatization reaction. Org Biomol Chem 2023; 21:4245-4256. [PMID: 37145103 DOI: 10.1039/d3ob00316g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
A convenient one-pot assembly of 4-(imidazol-1-yl)indole derivatives from easily accessible o-alkynylanilines and imidazoles has been developed. The sequential dearomatization and Ag(I)-catalyzed cyclization/Cs2CO3-mediated conjugate addition/aromatization cascade reactions exhibit high efficiency and excellent selectivity. The combined use of a silver(I) salt and cesium carbonate is significant for facilitating this domino transformation. The 4-(imidazol-1-yl)indole products could be easily converted to the corresponding derivatives and might be valuable in biological chemistry and medicinal science.
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Affiliation(s)
- Chaoman Huang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
| | - Zefeng Jin
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
| | - Bei Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
| | - Yuanyuan Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
| | - Huiting Lin
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
| | - Honglan Kang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
| | - Guodong Shen
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, Shandong, People's Republic of China
| | - Xin Lv
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People's Republic of China.
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32
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Peng L, Zeng Z, Li K, Liu Y, Lan Y, Yan H. Regiodivergent catalytic asymmetric dearomative cycloaddition of bicyclic heteroaromatics. SCIENCE ADVANCES 2023; 9:eadg1645. [PMID: 36989366 PMCID: PMC10058237 DOI: 10.1126/sciadv.adg1645] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/28/2023] [Indexed: 06/19/2023]
Abstract
The catalytic dearomative cycloaddition of bicyclic heteroaromatics including benzofurans and indoles provides rapid access to functionalized heterocyclic molecules. Because of the inherent stereoelectronic differences, the furan or pyrrole nucleus is more prone to dearomative cycloaddition than the benzene ring. Here, we realized a geometry-based differentiation approach for achieving C6-C7 and C7-C7a regioselectivity. The rotationally restricted σ bond at C7 position respectively placed the C6-C7 and C7-C7a sites of benzofurans or indoles in an optimal spatial orientation toward the axially chiral heterodiene, thus affording two enantioenriched polycyclic compounds from a single racemic heterobiaryl atropisomers. Calculation results of density functional theory interpreted the mechanism of this parallel kinetic resolution. The bioactivity of the dearomatized products was evaluated in cancer cell lines with certain compounds exhibiting interesting biological activities.
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Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Zhen Zeng
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Yidong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
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33
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Chen Y, Zhao JQ, Zhang YP, Zhou MQ, Zhang XM, Yuan WC. Copper-Catalyzed Asymmetric Dearomative [3+2] Cycloaddition of Nitroheteroarenes with Azomethines. Molecules 2023; 28:molecules28062765. [PMID: 36985737 PMCID: PMC10057014 DOI: 10.3390/molecules28062765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Catalytic asymmetric dearomative [3+2] cycloaddition of α-imino γ-lactones with either 3-nitroindoles or 2-nitrobenzofurans by using a chiral copper complex as the catalyst was developed. A wide range of structurally diverse polyheterocyclic compounds containing spirocyclic-fused butyrolactone-pyrrolidine-indoline and butyrolactone-pyrrolidine-dihydrobenzofuran skeletons could be smoothly obtained with excellent results (>99:1 dr and 98% ee). The potential synthetic applications of this methodology were also demonstrated by the scale-up experiment and by the diverse transformations of one product. This method is characterized by high asymmetric induction, wide functional group tolerance and scalability, and attractive product diversification.
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Affiliation(s)
- Yan Chen
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Department of Chemistry, Xihua University, Chengdu 610039, China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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34
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Liu X, Shi X, Zhou J, Huang C, Lin Y, Zhang C, Cao H. Dearomative cyclization of pyridines/isoquinolines with cyclopropenones: access to indolizinones and benzo-fused indolizinones. Chem Commun (Camb) 2023; 59:4051-4054. [PMID: 36929395 DOI: 10.1039/d3cc00492a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Dearomatization reactions provide a rapid approach to construct complicated molecules that are difficult to synthesize by traditional methods from simple aromatic compounds. Herein, we report an efficient dearomative [3+2] cycloaddition reaction of 2-alkynyl pyridines with diarylcyclopropenones, leading to the synthesis of densely functionalized indolizinones in moderate to good yields under metal-free conditions. In addition, this strategy can also be employed in dearomative cyclization of isoquinolines to access a variety of benzo-fused indolizinones. Density functional theory (DFT) calculations revealed that an appropriate substituent at the 2-position of pyridine is crucial to the dearomatization process.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Xiaotian Shi
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Changfeng Huang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Yu Lin
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Chen Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China. .,School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
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35
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Tan TD, Qian GL, Su HZ, Zhu LJ, Ye LW, Zhou B, Hong X, Qian PC. Brønsted acid-catalyzed asymmetric dearomatization for synthesis of chiral fused polycyclic enone and indoline scaffolds. SCIENCE ADVANCES 2023; 9:eadg4648. [PMID: 36921050 PMCID: PMC10017053 DOI: 10.1126/sciadv.adg4648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
In the past two decades, substantial advances have been made on the asymmetric alkyne functionalization by the activation of inert alkynes. However, these asymmetric transformations have so far been mostly limited to transition metal catalysis, and chiral Brønsted acid-catalyzed examples are rarely explored. Here, we report a chiral Brønsted acid-catalyzed dearomatization reaction of phenol- and indole-tethered homopropargyl amines, allowing the practical and atom-economical synthesis of a diverse array of valuable fused polycyclic enones and indolines bearing a chiral quaternary carbon stereocenter and two contiguous stereogenic centers in moderate to good yields with excellent diastereoselectivities and generally excellent enantioselectivities (up to >99% enantiomeric excess). This protocol demonstrates Brønsted acid-catalyzed asymmetric dearomatizations via vinylidene-quinone methides.
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Affiliation(s)
- Tong-De Tan
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Gan-Lu Qian
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Hao-Ze Su
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lu-Jing Zhu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Hong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
- Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street No. 2, Beijing 100190, China
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
| | - Peng-Cheng Qian
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
- Wenzhou Key Laboratory of Technology and Application of Environmental Functional Materials, Institute of New Materials and Industry Technology, Wenzhou University, Wenzhou 325000, China
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36
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Yu L, Xu R, Yao YY, Lu Y, Liu FY, Tan W, Shi F. Organocatalytic ( Z/ E)-Selective Synthesis of 3-Vinylnaphthofurans via a Formal (3 + 2) Cycloaddition. J Org Chem 2023; 88:3474-3486. [PMID: 36877987 DOI: 10.1021/acs.joc.2c02641] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
A formal (3 + 2) cycloaddition of 1,4-enediones with 2-naphthols was established under the catalysis of trifluoromethanesulfonic acid as an organocatalyst, leading to the efficient synthesis of structurally diverse 3-vinylnaphthofurans with high yields and excellent (Z/E)-selectivities (up to 96% yield, all >20:1 Z/E). This formal (3 + 2) cycloaddition involved a cascade reaction process, and the intramolecular hydrogen bond in the structure of 3-vinylnaphthofurans should play an important role in controlling the (Z/E)-selectivity of the newly formed vinyl group. Moreover, this class of 3-vinylnaphthofurans was discovered to have an axial chirality. This work provides an organocatalytic approach for constructing multi-substituted vinylnaphthofurans via a cascade reaction with excellent control of the (Z/E)-selectivity, which will serve as a useful strategy for synthesizing vinylnaphthofurans via in situ construction of the furan core and formation of the vinyl group.
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Affiliation(s)
- Lei Yu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Ran Xu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yan-Yi Yao
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yu Lu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Fei-Yang Liu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Wei Tan
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Feng Shi
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China.,School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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37
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Kwahk EJ, Nguyen NH, Jang S, Shin S, Kim H. Chiral Recognition and Resolution of Phosphoric Acids Using Octahedral Cobalt Complexes. Org Lett 2023; 25:2036-2040. [PMID: 36926952 DOI: 10.1021/acs.orglett.3c00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Determining the chirality of phosphoric acids can be a challenging task. In this study, we present a novel approach for the chiral recognition of phosphates using cationic octahedral cobalt complexes. By utilizing 31P NMR spectroscopy, we are able to accurately measure the enantiopurities of chiral phosphoric acids after forming ion pairs with the cobalt complexes. We have successfully applied this method to a variety of chiral phosphoric acids derived from BINOL, H8-BINOL, SPINOL, VAPOL, and VANOL compounds, as well as ATP, and were able to efficiently resolve them in 31P{1H} NMR spectra. Furthermore, we were able to achieve an optical resolution of a phosphoric acid with an enantiomeric excess of greater than 99%.
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Affiliation(s)
- Eun-Jeong Kwahk
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Nguyen H Nguyen
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Sumin Jang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seunghoon Shin
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Hyunwoo Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
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38
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Aleksiev M, García Mancheño O. Enantioselective dearomatization reactions of heteroarenes by anion-binding organocatalysis. Chem Commun (Camb) 2023; 59:3360-3372. [PMID: 36790499 PMCID: PMC10019134 DOI: 10.1039/d2cc07101k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Catalytic asymmetric dearomatization of heteroaromatic compounds has received considerable attention in the last few years, since it allows for a fast expansion of the chemical space by converting relatively simple, flat molecules into complex, three dimensional structures with added value. Among different approaches, remarkable progress has been recently achieved by the development of organocatalytic dearomatization methods. In particular, the anion-binding catalysis technology has emerged as a potent alternative to metal catalysis, which together with the design of novel, tunable anion-receptor motifs, has provided new entries for the enantioselective dearomatization of heteroarenes through a chiral contact ion pair formation by activation of the electrophilic reaction partner. In this feature, we provide an overview of the different methodologies and advances in anion-binding catalyzed dearomatization reactions of different heteroarenes.
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Affiliation(s)
- Martin Aleksiev
- Organic Chemistry Institute, University of Münster, Corrensstraße 36/40, 48149 Münster, Germany.
| | - Olga García Mancheño
- Organic Chemistry Institute, University of Münster, Corrensstraße 36/40, 48149 Münster, Germany.
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39
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Applications of Hantzsch Esters in Organocatalytic Enantioselective Synthesis. Catalysts 2023. [DOI: 10.3390/catal13020419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Hantzsch esters (1,4-dihydropyridine dicarboxylates) have become, in this century, very versatile reagents for enantioselective organic transformations. They can act as hydride transfer agents to reduce, regioselectively, a variety of multiple bonds, e.g., C=C and C=N, under mild reaction conditions. They are excellent reagents for the dearomatization of heteroaromatic substances, and participate readily in cascade processes. In the last few years, they have also become useful reagents for photoredox reactions. They can participate as sacrificial electron and hydrogen donors and when 4-alkyl or 4-acyl-substituted, they can act as alkyl or acyl radical transfer agents. These last reactions may take place in the presence or absence of a photocatalyst. This review surveys the literature published in this area in the last five years.
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40
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Zhou S, Qian HL, Zhao JQ, You Y, Wang ZH, Yin JQ, Zhang YP, Chen MF, Yuan WC. Diastereoselective synthesis of polycyclic indolines via dearomative [4 + 2] cycloaddition of 3-nitroindoles with ortho-aminophenyl p-quinone methides. Org Biomol Chem 2023; 21:1373-1378. [PMID: 36723148 DOI: 10.1039/d2ob02303b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A formal [4 + 2] cycloaddition of 3-nitroindoles with ortho-aminophenyl p-quinone methides via a dearomatization process was developed. This method provides a facile approach for preparing tetrahydro-5H-indolo[2,3-b]quinolones with good results. With the bifunctional Cinchona alkaloid-squaramide as the catalyst, the asymmetric version of the reaction successfully afforded the corresponding chiral products with moderate to good enantioselectivities. This work represents the first dearomative cycloaddition of electron-deficient heteroarenes triggered by aza-Michael addition from p-QMs.
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Affiliation(s)
- Shun Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hui-Ling Qian
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Jun-Qing Yin
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Ming-Feng Chen
- Zhejiang Nexchem Pharmaceutical Co., Ltd., Jinhua, 321016, China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
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41
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Yang X, Liu G, Xiang X, Xie D, Han J, Han Z, Dong XQ. Ni-Catalyzed Asymmetric Hydrogenation of α-Substituted α,β-Unsaturated Phosphine Oxides/Phosphonates/Phosphoric Acids. Org Lett 2023; 25:738-743. [PMID: 36716390 DOI: 10.1021/acs.orglett.2c04105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Efficient Ni/(S,S)-Ph-BPE-catalyzed asymmetric hydrogenation of α-substituted α,β-unsaturated phosphine oxides/phosphonates/phosphoric acids has been successfully developed, and a wide range of chiral α-substituted phosphines hydrogenation products were obtained in generally high yields with excellent enantioselective control (92%-99% yields, 84%->99% ee). This method features a cheap transition metal nickel catalytic system, high functional group tolerance, wide substrate scope generality, and excellent enantioselectivity. A plausible catalytic cycle was proposed for this asymmetric hydrogenation according to the results of deuterium-labeling experiments.
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Affiliation(s)
- Xuanliang Yang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Gang Liu
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Xun Xiang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Dezheng Xie
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Jinyu Han
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P.R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, P.R. China
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42
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Bai L, Wang L, Zhu H, Pang S, Li S, Lv J, Zhang H, Yang D. Development of ProPhenol/Ti(IV) Catalyst for Asymmetric Hydroxylative Dearomatization of Naphthols. Org Lett 2023; 25:867-871. [PMID: 36723617 DOI: 10.1021/acs.orglett.3c00077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
By development of ProPhenol/Ti(IV) catalysts, a catalytic enantioselective hydroxylative dearomatization of naphthols is achieved by using TBHP as a simple oxidative reagent. The side coordinative chain equipped on the C1-position of β-naphthols plays an important role for initiating this asymmetric hydroxylative reaction, which might be a result of the proper cocoordination effects to the titanium center in the catalyst. A reasonable catalytic cycle is proposed, the catalytic system is applied to a reasonable range of this type of phenolic compound, and related concise transformations are carried out.
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Affiliation(s)
- Lutao Bai
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Linqing Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Haiyong Zhu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Shiming Pang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Shixin Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Jiaming Lv
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Hailong Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
| | - Dongxu Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, China
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43
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Chen ZH, Li TZ, Wang NY, Ma XF, Ni SF, Zhang YC, Shi F. Organocatalytic Enantioselective Synthesis of Axially Chiral N,N'-Bisindoles. Angew Chem Int Ed Engl 2023; 62:e202300419. [PMID: 36749711 DOI: 10.1002/anie.202300419] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/08/2023]
Abstract
This study establishes the first organocatalytic enantioselective synthesis of axially chiral N,N'-bisindoles via chiral phosphoric acid-catalyzed formal (3+2) cycloadditions of indole-based enaminones as novel platform molecules with 2,3-diketoesters, where de novo indole-ring formation is involved. Using this new strategy, various axially chiral N,N'-bisindoles were synthesized in good yields and with excellent enantioselectivities (up to 87 % yield and 96 % ee). More importantly, this class of axially chiral N,N'-bisindoles exhibited some degree of cytotoxicity toward cancer cells and was derived into axially chiral phosphine ligands with high catalytic activity. This study provides a new strategy for enantioselective synthesis of axially chiral N,N'-bisindoles using asymmetric organocatalysis and is the first to realize the applications of such scaffolds in medicinal chemistry and asymmetric catalysis.
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Affiliation(s)
- Zhi-Han Chen
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Tian-Zhen Li
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.,School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Ning-Yi Wang
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Xiao-Fang Ma
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, China
| | - Yu-Chen Zhang
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.,School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
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44
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Dai L, Liu Y, Xu Q, Wang M, Zhu Q, Yu P, Zhong G, Zeng X. A Dynamic Kinetic Resolution Approach to Axially Chiral Diaryl Ethers by Catalytic Atroposelective Transfer Hydrogenation. Angew Chem Int Ed Engl 2023; 62:e202216534. [PMID: 36536515 DOI: 10.1002/anie.202216534] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/03/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Diaryl ethers are widespread in biologically active compounds, ligands and catalysts. It is known that the diaryl ether skeleton may exhibit atropisomerism when both aryl rings are unsymmetrically substituted with bulky groups. Despite recent advances, only very few catalytic asymmetric methods have been developed to construct such axially chiral compounds. We describe herein a dynamic kinetic resolution approach to axially chiral diaryl ethers via a Brønsted acid catalyzed atroposelective transfer hydrogenation (ATH) reaction of dicarbaldehydes with anilines. The desired diaryl ethers could be obtained in moderate to good chemical yields (up to 79 %) and high enantioselectivities (up to 95 % ee) under standard reaction conditions. Such structural motifs are interesting precursors for further transformations and may have potential applications in the synthesis of chiral ligands or catalysts.
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Affiliation(s)
- Linlong Dai
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China.,Department of Chemistry, Eastern Institute for Advanced Study, Ningbo, China.,School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, China
| | - Yuheng Liu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
| | - Qing Xu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
| | - Meifang Wang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
| | - Qiaohong Zhu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
| | - Peiyuan Yu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
| | - Guofu Zhong
- Department of Chemistry, Eastern Institute for Advanced Study, Ningbo, China.,School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, China
| | - Xiaofei Zeng
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
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45
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Cai B, Cui Y, Zhou J, Wang YB, Yang L, Tan B, Wang JJ. Asymmetric Hydrophosphinylation of Alkynes: Facile Access to Axially Chiral Styrene-Phosphines. Angew Chem Int Ed Engl 2023; 62:e202215820. [PMID: 36424372 DOI: 10.1002/anie.202215820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/24/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
A Cu/CPA co-catalytic system has been developed for achieving the direct hydrophosphinylation of alkynes with phosphine oxides in delivering novel axially chiral phosphorus-containing alkenes in high yields and excellent enantioselectivities (up to 99 % yield and 99 % ee). DFT calculations were performed to elucidate the reaction pathway and the origin of enantiocontrol. This streamlined and modular methodology establishes a new platform for the design and application of new axially chiral styrene-phosphine ligands.
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Affiliation(s)
- Baohua Cai
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yuan Cui
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jian Zhou
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Yong-Bin Wang
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Limin Yang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Bin Tan
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jun Joelle Wang
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
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46
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Xiang X, He Z, Dong X. Recent Advances of Efficient Synthesis of Chiral Molecules Promoted by Pd/Chiral Phosphoric Acid Synergistic Catalysis. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202211043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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47
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Zhao Z, Liu M, Zhou K, Gong H, Shen Y, Bao Z, Yang Q, Ren Q, Zhang Z. Zr-Based Metal-Organic Frameworks with Phosphoric Acids for the Photo-Oxidation of Sulfides. Int J Mol Sci 2022; 23:ijms232416121. [PMID: 36555762 PMCID: PMC9784696 DOI: 10.3390/ijms232416121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Heterogeneous Brønsted acidic catalysts such as phosphoric acids are the conventional activators for organic transformations. However, the photocatalytic performance of these catalysts is still rarely explored. Herein, a novel Zr-based metal-organic framework Zr-MOF-P with phosphoric acids as a heterogeneous photocatalyst has been fabricated, which shows high selectivity and reactivity towards the photo-oxidation of sulfides under white light illumination. A mechanism study indicates that the selective oxygenation of sulfides occurs with triplet oxygen rather than common reactive oxygen species (ROS). When Zr-MOF-P is irradiated, the hydroxyl group of phosphoric acid is converted into oxygen radical, which takes an electron from the sulfides, and then the activated substrates react with the triplet oxygen to form sulfoxides, avoiding the destruction of the catalysts and endowing the reaction with high substrate compatibility and fine recyclability.
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Affiliation(s)
- Zhenghua Zhao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Mingjie Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Kai Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Hantao Gong
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Yajing Shen
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Zongbi Bao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Qiwei Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Qilong Ren
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
| | - Zhiguo Zhang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University—Quzhou, Quzhou 324000, China
- Correspondence:
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48
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Ito T, Harada S, Homma H, Okabe A, Nemoto T. Mechanistic Investigation on Dearomative Spirocyclization of Arenes with α-Diazoamide under Boron Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tsubasa Ito
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Haruka Homma
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Ayaka Okabe
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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49
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Huang L, Liang M, Fang Y, Kim J, Yang Y, Huang Z. Protonic recognition and assembly for the creation of porous Brønsted acid catalysts with enhanced catalytic efficiency. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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50
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Wang HQ, Wu SF, Yang JR, Zhang YC, Shi F. Design and Organocatalytic Asymmetric Synthesis of Indolyl-Pyrroloindoles Bearing Both Axial and Central Chirality. J Org Chem 2022. [DOI: 10.1021/acs.joc.2c02303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Hai-Qing Wang
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shu-Fang Wu
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Jun-Ru Yang
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Yu-Chen Zhang
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- Research Center of Chiral Functional Heterocycles, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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