1
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Jurin M, Stepanić V, Bojanić K, Vadlja D, Kontrec D, Dražić T, Roje M. Novel (±)- trans- β-lactam ureas: Synthesis, in silico and in vitro biological profiling. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2024; 74:37-59. [PMID: 38554382 DOI: 10.2478/acph-2024-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/13/2024] [Indexed: 04/01/2024]
Abstract
A diastereomeric mixture of racemic 3-phthalimido-b-lactam 2a/2b was synthesized by the Staudinger reaction of carboxylic acid activated with 2-chloro-1-methylpyridinium iodide and imine 1. The amino group at the C3 position of the b-lactam ring was used for further structural upgrade. trans-b-lactam ureas 4a-t were prepared by the condensation reaction of the amino group of b-lactam ring with various aromatic and aliphatic isocyanates. Antimicrobial activity of compounds 4a-t was evaluated in vitro and neither antibacterial nor antifungal activity were observed. Several of the newly synthesized trans-b-lactam ureas 4a-c, 4f, 4h, 4n, 4o, 4p, and 4s were evaluated for in vitro antiproliferative activity against liver hepatocellular carcinoma (HepG2), ovarian carcinoma (A2780), breast adenocarcinoma (MCF7) and untransformed human fibroblasts (HFF1). The b-lactam urea 4o showed the most potent antiproliferative activity against the ovarian carcinoma (A2780) cell line. Compounds 4o and 4p exhibited strong cytotoxic effects against human non-tumor cell line HFF1. The b-lactam ureas 4a-t were estimated to be soluble and membrane permeable, moderately lipophilic molecules (logP 4.6) with a predisposition to be CYP3A4 and P-glycoprotein substrates. The tools PASS and SwissTargetPrediction could not predict biological targets for compounds 4a-t with high probability, pointing to the novelty of their structure. Considering low toxicity risk, molecules 4a and 4f can be selected as the most promising candidates for further structure modifications.
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Affiliation(s)
- Mladenka Jurin
- Division of Organic Chemistry and Biochemistry, Laboratory for Chiral Technologies, Ruđer Bošković Institute 10000 Zagreb, Croatia
| | - Višnja Stepanić
- Division of Electronics, Laboratory for Machine Learning and Knowledge Representation, Ruđer Bošković Institute, 10000, Zagreb Croatia
| | - Krunoslav Bojanić
- Division of Materials Chemistry Laboratory for Aquaculture in Biotechnology, Ruđer Bošković Institute 10000 Zagreb, Croatia
| | - Denis Vadlja
- Division of Materials Chemistry Laboratory for Aquaculture in Biotechnology, Ruđer Bošković Institute 10000 Zagreb, Croatia
| | - Darko Kontrec
- Division of Organic Chemistry and Biochemistry, Laboratory for Chiral Technologies, Ruđer Bošković Institute 10000 Zagreb, Croatia
| | - Tonko Dražić
- Division of Physical Chemistry Laboratory for Biocolloids and Surface Chemistry, Ruđer Bošković Institute 10000 Zagreb
| | - Marin Roje
- Division of Organic Chemistry and Biochemistry, Laboratory for Chiral Technologies, Ruđer Bošković Institute 10000 Zagreb, Croatia
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2
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Kuang X, Li JJ, Liu T, Ding CH, Wu K, Wang P, Yu JQ. Cu-mediated enantioselective C-H alkynylation of ferrocenes with chiral BINOL ligands. Nat Commun 2023; 14:7698. [PMID: 38001060 PMCID: PMC10673954 DOI: 10.1038/s41467-023-43278-z] [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: 06/23/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
A wide range of Cu(II)-catalyzed C-H activation reactions have been realized since 2006, however, whether a C-H metalation mechanism similar to Pd(II)-catalyzed C-H activation reaction is operating remains an open question. To address this question and ultimately develop ligand accelerated Cu(II)-catalyzed C-H activation reactions, realizing the enantioselective version and investigating the mechanism is critically important. With a modified chiral BINOL ligand, we report the first example of Cu-mediated enantioselective C-H activation reaction for the construction of planar chiral ferrocenes with high yields and stereoinduction. The key to the success of this reaction is the discovery of a ligand acceleration effect with the BINOL-based diol ligand in the directed Cu-catalyzed C-H alkynylation of ferrocene derivatives bearing an oxazoline-aniline directing group. This transformation is compatible with terminal aryl and alkyl alkynes, which are incompatible with Pd-catalyzed C-H activation reactions. This finding provides an invaluable mechanistic information in determining whether Cu(II) cleaves C-H bonds via CMD pathway in analogous manner to Pd(II) catalysts.
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Affiliation(s)
- Xin Kuang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai, 200032, P.R. China
- School of Science, Shanghai University, 99 Shang-Da Road, Shanghai, 200444, P. R. China
| | - Jian-Jun Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai, 200032, P.R. China
| | - Tao Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai, 200032, P.R. China
| | - Chang-Hua Ding
- School of Science, Shanghai University, 99 Shang-Da Road, Shanghai, 200444, P. R. China
| | - Kevin Wu
- The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai, 200032, P.R. China.
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P.R. China.
| | - Jin-Quan Yu
- The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.
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3
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Wen XR, Zhu WQ, Zhang CL, Li H, Zhang J, Yang MG, Kou YL, Liu YX, Li Y. Synthesis of α-CF 3 Amides via Palladium-Catalyzed Carbonylation of 2-Bromo-3,3,3-trifluoropropene. ACS OMEGA 2023; 8:7128-7134. [PMID: 36844566 PMCID: PMC9948557 DOI: 10.1021/acsomega.2c08206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Amide compounds are important organic compounds, which play an important role in biomedical chemistry, materials science, life science, and other fields. The synthesis of α-CF3 amides, especially compounds containing 3-(trifluoromethyl)-1,3,4,5-tetrahydro-2H-benzo[b][1,4]diazepine-2-one, has long been a challenge due to the tensile properties and instability of the rings. Here, we report an example of palladium-catalyzed carbonylation of CF3-containing olefin to form α-CF3 acrylamide. By controlling the ligands, we can get different amide compounds as products. This method has good substrate adaptability and functional group tolerance.
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Affiliation(s)
- Xiao Rui Wen
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| | - Wen Qing Zhu
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| | - Cai Lin Zhang
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| | - Hong Li
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| | - Jin Zhang
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| | - Min Ge Yang
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| | - Yong Li Kou
- Shaanxi
Coal Chemical Industry Technology Research Institute Co., Ltd., Xi’an 710065, China
| | - Yu Xia Liu
- Shaanxi
Natural Carbohydrate Resource Engineering Research Center, College
of Food Science and Technology, Northwest
University, Xi’an 710127, China
| | - Yang Li
- School
of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
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4
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Zhou S, Liu T, Bao X. Direct intermolecular C(sp)–H amidation with dioxazolones via synergistic decatungstate anion photocatalysis and nickel catalysis: A combined experimental and computational study. J Catal 2022. [DOI: 10.1016/j.jcat.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Ji H, Wang Z, Zhan H, Fang Z, Zhang Q, Li D. Copper-catalyzed benzylic C–H amidation of toluene derivatives with N-(8-quinolyl)amides through C(sp3)–H/N–H cross dehydrogenative coupling. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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LI L, Mahri L, de Robichon M, Fatthalla M, Ferry A, MESSAOUDI S. Directed Dehydrogenative Copper‐Catalyzed C‐H Thiolation in Pseudo‐Anomeric Position of Glycals using Thiol and Thiosugar Partners. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Zhuang Z, Liu S, Cheng J, Yeung K, Qiao JX, Meanwell NA, Yu J. Ligand‐Enabled β‐C(sp
3
)−H Lactamization of Tosyl‐Protected Aliphatic Amides Using a Practical Oxidant. Angew Chem Int Ed Engl 2022; 61:e202207354. [PMID: 35790471 PMCID: PMC9439703 DOI: 10.1002/anie.202207354] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Indexed: 11/25/2022]
Abstract
The development of C(sp3)−H functionalization reactions that use common protecting groups and practical oxidants remains a significant challenge. Herein we report a monoprotected aminoethyl thioether (MPAThio) ligand‐enabled β‐C(sp3)−H lactamization of tosyl‐protected aliphatic amides using tert‐butyl hydrogen peroxide (TBHP) as the sole oxidant. This protocol features exceedingly mild reaction conditions, reliable scalability, and the use of practical oxidants and protecting groups. Further derivatization of the β‐lactam products enables the synthesis of a range of biologically important motifs including β‐amino acids, γ‐amino alcohols, and azetidines.
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Affiliation(s)
- Zhe Zhuang
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Shuang Liu
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Jin‐Tang Cheng
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Kap‐Sun Yeung
- Small Molecule Drug Discovery Bristol Myers Squibb Research and Early Development 100 Binney Street Cambridge MA 02142 USA
| | - Jennifer X. Qiao
- Small Molecule Drug Discovery Bristol Myers Squibb Research and Early Development P.O. Box 4000 Princeton NJ 08543 USA
| | - Nicholas A. Meanwell
- Small Molecule Drug Discovery Bristol Myers Squibb Research and Early Development P.O. Box 4000 Princeton NJ 08543 USA
| | - Jin‐Quan Yu
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
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8
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Ravindar L, Hasbullah SA, Hassan NI, Qin HL. Cross‐Coupling of C‐H and N‐H Bonds: a Hydrogen Evolution Strategy for the Construction of C‐N Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lekkala Ravindar
- Universiti Kebangsaan Malaysia Fakulti Teknologi dan Sains Maklumat Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Siti Aishah Hasbullah
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Nurul Izzaty Hassan
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Hua-Li Qin
- Wuhan University of Technology School of Chemistry 430070 Hubei CHINA
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9
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Zhuang Z, Liu S, Cheng JT, Yeung KS, Qiao JX, Meanwell NA, Yu JQ. Ligand‐Enabled β‐C(sp3)−H Lactamization of Tosyl‐Protected Aliphatic Amides Using a Practical Oxidant. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhe Zhuang
- The Scripps Research Institute Department of Chemistry 10550 N Torrey Pines Road 92037 La jolla UNITED STATES
| | - Shuang Liu
- The Scripps Research Institute Department of Chemistry 10550 N Torrey Pines Road 92037 La jolla UNITED STATES
| | - Jin-Tang Cheng
- The Scripps Research Institute Department of Chemistry 10550 N Torrey Pines Road 92037 La jolla UNITED STATES
| | - Kap-Sun Yeung
- Bristol Myers Squibb Research and Early Development UNITED STATES
| | - Jennifer X. Qiao
- Bristol-Myers Squibb Research Research and Early Development UNITED STATES
| | | | - Jin-Quan Yu
- The Scripps Research Institute chemistry 10550 N Torrey Pines Road 92037 La Jolla UNITED STATES
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10
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Kaur R, Banga S, Babu SA. Construction of carbazole-based unnatural amino acid scaffolds via Pd(II)-catalyzed C(sp 3)-H functionalization. Org Biomol Chem 2022; 20:4391-4414. [PMID: 35583129 DOI: 10.1039/d2ob00658h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report the synthesis of carbazole-based unnatural α-amino acid and non-α-amino acid derivatives via a Pd(II)-catalyzed bidentate directing group 8-aminoquinoline-aided β-C(sp3)-H activation/functionalization method. Various N-phthaloyl, DL-, L- and D-carboxamides derived from their corresponding α-amino acids, non-α-amino acids and aliphatic carboxamides were subjected to the β-C(sp3)-H functionalization with 3-iodocarbazoles in the presence of a Pd(II) catalyst to afford the corresponding carbazole moiety installed unnatural amino acid derivatives and aliphatic carboxamides. Carbazole motif-containing racemic (DL) and enantiopure (L and D) amino acid derivatives including phenylalanine, norvaline, leucine, norleucine and 2-aminooctanoic acid with anti-stereochemistry and various non-α-amino acid derivatives including GABA have been synthesized. Removal of the 8-aminoquinoline directing group, deprotection of the phthalimide moiety and the preparation of carbazole amino acid derivatives containing free amino- and carboxylate groups are shown. The carbazole motif is prevalent in alkaloids and biologically active molecules and functional materials. Thus, this work on the synthesis of carbazole-based unnatural amino acid derivatives would enrich the libraries of unnatural amino acid derivatives and carbazoles.
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Affiliation(s)
- Ramandeep Kaur
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Shefali Banga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
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11
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Ma J, Zhou X, Guo P, Cheng H, Ji H. Copper‐Mediated
and Catalyzed
C‐H
Bond Amination via
Chelation‐Assistance
: Scope, Mechanism and Synthetic Applications. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100812] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiao‐Li Ma
- College of Chemistry, Guangdong University of Petrochemical Technology Maoming 525000 PR China
| | - Xu‐Ming Zhou
- College of Chemistry, Guangdong University of Petrochemical Technology Maoming 525000 PR China
| | - Peng‐Hu Guo
- College of Chemistry, Guangdong University of Petrochemical Technology Maoming 525000 PR China
| | - Hui‐Cheng Cheng
- College of Chemistry, Guangdong University of Petrochemical Technology Maoming 525000 PR China
| | - Hong‐bing Ji
- College of Chemistry, Guangdong University of Petrochemical Technology Maoming 525000 PR China
- Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat‐sen University Guangzhou 510275 PR China
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12
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Loro C, Molteni L, Papis M, Beccalli EM, Nava D, Presti LL, Brenna S, Colombo G, Foschi F, Broggini G. Direct Synthesis of Fluorescent Oxazolo-phenoxazines by Copper-Catalyzed/Hypervalent Iodine(III)-Mediated Dimerization/Cyclization of 2-Benzylamino-phenols. J Org Chem 2022; 87:1032-1042. [PMID: 35014843 DOI: 10.1021/acs.joc.1c02329] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A dimerization/cyclization reaction of 2-benzylamino-phenols for the direct synthesis of the oxazolo-phenoxazine skeleton is reported. The reaction occurs under copper catalysis in the presence of hypervalent iodine(III), giving selectively the 5H-oxazolo[4,5-b]phenoxazine compounds. The cascade process, which allows the conversion of the substrates into the tetracyclic products, involves three C-H functionalization steps. Initial oxidation of electron-rich arenes by the hypervalent iodine is essential for the dimerization of substrates, whereas the formation of the five-membered rings is promoted by the copper species. 1-Benzyl-2-phenyl-6-(aryl-benzyl)amino-benzimidazoles are regioselectively obtained using N,N'-dibenzyl-phenylenediamines as starting substrates. The fluorescence emission properties of these classes of products have been evaluated.
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Affiliation(s)
- Camilla Loro
- Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy
| | - Letizia Molteni
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini" Università degli Studi di Milano, via Venezian 21, 20133 Milano, Italy
| | - Marta Papis
- Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy
| | - Egle M Beccalli
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini" Università degli Studi di Milano, via Venezian 21, 20133 Milano, Italy
| | - Donatella Nava
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini" Università degli Studi di Milano, via Venezian 21, 20133 Milano, Italy
| | - Leonardo Lo Presti
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy
| | - Stefano Brenna
- Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy
| | - Gioele Colombo
- Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy
| | - Francesca Foschi
- Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy
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13
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Liu B, Romine AM, Rubel CZ, Engle KM, Shi BF. Transition-Metal-Catalyzed, Coordination-Assisted Functionalization of Nonactivated C(sp 3)-H Bonds. Chem Rev 2021; 121:14957-15074. [PMID: 34714620 PMCID: PMC8968411 DOI: 10.1021/acs.chemrev.1c00519] [Citation(s) in RCA: 186] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Transition-metal-catalyzed, coordination-assisted C(sp3)-H functionalization has revolutionized synthetic planning over the past few decades as the use of these directing groups has allowed for increased access to many strategic positions in organic molecules. Nonetheless, several challenges remain preeminent, such as the requirement for high temperatures, the difficulty in removing or converting directing groups, and, although many metals provide some reactivity, the difficulty in employing metals outside of palladium. This review aims to give a comprehensive overview of coordination-assisted, transition-metal-catalyzed, direct functionalization of nonactivated C(sp3)-H bonds by covering the literature since 2004 in order to demonstrate the current state-of-the-art methods as well as the current limitations. For clarity, this review has been divided into nine sections by the transition metal catalyst with subdivisions by the type of bond formation. Synthetic applications and reaction mechanism are discussed where appropriate.
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Affiliation(s)
- Bin Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Andrew M. Romine
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Camille Z. Rubel
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States.,Corresponding Author- (K. M. E.); (B.-F. S.)
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China,Corresponding Author- (K. M. E.); (B.-F. S.)
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14
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Talukdar K, Shah TA, Sarkar T, Roy S, Maharana PK, Punniyamurthy T. Pd-catalyzed bidentate auxiliary assisted remote C(sp 3)-H functionalization. Chem Commun (Camb) 2021; 57:13221-13233. [PMID: 34816830 DOI: 10.1039/d1cc05291h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pd-catalyzed C-H functionalisation affords effective synthetic tools to construct C-C and C-X bonds. Despite the challenges, the distal functionalization of C(sp3)-H bonds has witnessed significant developments and the use of bidentate auxiliaries has garnished this area by providing an opportunity to control reactivity as well as selectivity beyond proximal sites. This article covers the recent developments on the Pd-catalyzed bidentate auxiliary-assisted distal C(sp3)-H functionalization and is categorized based on the nature of functionalizations.
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Affiliation(s)
- Kangkan Talukdar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Tariq A Shah
- Department of Chemistry, University of Kashmir, Srinagar-190006, India
| | - Tanumay Sarkar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Subhasish Roy
- Department of Chemistry, School of Fundamental and Applied Sciences, Assam Don Bosco University, Kamarkuchi, Sonapur-782402, India
| | - Prabhat Kumar Maharana
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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15
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Chandra P. Recent Advancement in the Copper Mediated Synthesis of Heterocyclic Amides as Important Pharmaceutical and Agrochemicals. ChemistrySelect 2021. [DOI: 10.1002/slct.202103035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Prakash Chandra
- School of Technology Pandit Deendayal Petroleum University Gandhinagar Gujarat 382007 India
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16
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Gan Z, Zhang K, Shi P, Zhao Y, Zeng R. Copper(i)-catalyzed radical carboamination reaction of 8-aminoquinoline-oriented buteneamides with chloroform: synthesis of-β-lactams. RSC Adv 2021; 11:28081-28084. [PMID: 35480755 PMCID: PMC9037986 DOI: 10.1039/d1ra05233k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/11/2021] [Indexed: 11/21/2022] Open
Abstract
A novel Cu(CH3CN)4PF6-catalyzed carboamination reaction of 8-aminoquinoline-oriented buteneamides with chloroform to afford 4-(2,2,2-trichloroethyl)-β-lactams is described. The reaction proceeded at 110 °C in air with di-t-butyl peroxide. Preliminary studies indicated that the reaction undergoes a free radical mechanism via a Cu(i)/Cu(ii)/Cu(iii) catalytic cycle.
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Affiliation(s)
- Zixu Gan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Ke Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Peng Shi
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg1 52074 Aachen Germany
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Runsheng Zeng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
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17
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Yamamoto Y, Kodama S, Nishimura R, Nomoto A, Ueshima M, Ogawa A. One-Pot Construction of Diverse β-Lactam Scaffolds via the Green Oxidation of Amines and Its Application to the Diastereoselective Synthesis of β-Amino Acids. J Org Chem 2021; 86:11571-11582. [PMID: 34319738 DOI: 10.1021/acs.joc.1c01128] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, a simple one-pot construction of β-lactam scaffolds was successfully achieved via 4,6-dihydroxysalicylic acid-catalyzed organocatalytic oxidation of amines to imines using molecular oxygen. Although some imines are highly unstable and difficult to isolate by conventional methods, the organocatalytic oxidation of amines described herein, followed by their direct reaction with acyl chlorides in the presence of a base, afforded a series of new β-lactam derivatives with excellent cis selectivity, which could not be synthesized and isolated by previously reported methods. Thus, this one-pot protocol will be one of the powerful methods applicable to the synthesis of various potential drug candidates and functional molecules. Furthermore, the subsequent hydrolysis of these β-lactams successfully afforded the corresponding β-amino acids as almost single diastereomers in up to 99% yields.
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Affiliation(s)
- Yuki Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Riku Nishimura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Michio Ueshima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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18
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Sarkar W, Mishra A, Bhowmik A, Deb I. Copper-Catalyzed Direct sp 2 C-H Silylation of Arylamides Using Disilanes. Org Lett 2021; 23:4521-4526. [PMID: 33984233 DOI: 10.1021/acs.orglett.1c01129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper-catalyzed method for direct intermolecular ortho-silylation of benzamides has been developed that affords organosilane products in moderate to high yields. The key features include: (i) use of commercially available disilanes as a silicon source with 8-aminoquinoline as a bidentate directing group, (ii) use of earth-abundant first-row transition metal, (iii) operationally simple conditions without the need of an inert atmosphere, and (iv) tolerance of a wide range of functional groups. The practicality and effectiveness of this method have been demonstrated by a gram-scale experiment. This strategy, therefore, constitutes a convenient way of constructing C-Si bonds useful for synthetic organic chemistry.
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Affiliation(s)
- Writhabrata Sarkar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Aniket Mishra
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Arup Bhowmik
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Indubhusan Deb
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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19
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Rogge T, Kaplaneris N, Chatani N, Kim J, Chang S, Punji B, Schafer LL, Musaev DG, Wencel-Delord J, Roberts CA, Sarpong R, Wilson ZE, Brimble MA, Johansson MJ, Ackermann L. C–H activation. ACTA ACUST UNITED AC 2021. [DOI: 10.1038/s43586-021-00041-2] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Li Y, Miyamoto S, Torigoe T, Kuninobu Y. Regioselective C(sp 3)-H alkylation of a fructopyranose derivative by 1,6-HAT. Org Biomol Chem 2021; 19:3124-3127. [PMID: 33885565 DOI: 10.1039/d1ob00326g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regioselective C(sp3)-H alkylation of a fructopyranose derivative using electron-deficient alkenes as alkylation reagents was achieved. The reaction proceeded via 1,6-hydrogen atom transfer under photoredox iridium catalysis. Several functional groups were introduced into the fructopyranose derivative.
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Affiliation(s)
- Yanru Li
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
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21
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Fitzgerald LS, O'Duill ML. A Guide to Directing Group Removal: 8-Aminoquinoline. Chemistry 2021; 27:8411-8436. [PMID: 33559933 DOI: 10.1002/chem.202100093] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/08/2021] [Indexed: 12/23/2022]
Abstract
The use of directing groups allows high levels of selectivity to be achieved in transition metal-catalyzed transformations. Efficient removal of these auxiliaries after successful functionalization, however, can be very challenging. This review provides a critical overview of strategies used for removal of Daugulis' 8-aminoquinoline (2005-2020), one of the most widely used N,N-bidentate directing groups. The limitations of these strategies are discussed and alternative approaches are suggested for challenging substrates. Our aim is to provide a comprehensive end-users' guide for chemists in academia and industry who want to harness the synthetic power of directing groups-and be able to remove them from their final products.
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Affiliation(s)
- Liam S Fitzgerald
- School of Chemistry, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Miriam L O'Duill
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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22
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Yang Y, Gao W, Wang Y, Wang X, Cao F, Shi T, Wang Z. Recent Advances in Copper Promoted Inert C(sp3)–H Functionalization. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04618] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yuhang Yang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, People’s Republic of China
| | - Weiwei Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, People’s Republic of China
| | - Yongqiang Wang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, People’s Republic of China
| | - Xiaodong Wang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, People’s Republic of China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, People’s Republic of China
| | - Tao Shi
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, People’s Republic of China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, People’s Republic of China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, People’s Republic of China
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23
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Feng YL, Shi BF. Recent Advances in Base Metal (Copper, Cobalt and Nickel)-Catalyzed Directed C—H Amination. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Zhang H, Sun MC, Yin LM, Wei D, Song MP, Yang D, Niu JL. Direct intramolecular C(sp 3)–H bond sulfonamidation to synthesize benzosultam derivatives under metal-free conditions. Org Chem Front 2021. [DOI: 10.1039/d1qo01235e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient intramolecular C(sp3)–H bond amination under metal-free conditions has been developed to provide a straightforward method for the synthesis of 5-membered cyclic sulfonamides (benzosultams).
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Affiliation(s)
- He Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Meng-Chan Sun
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Li-Ming Yin
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Donghui Wei
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Dandan Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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25
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Kumar J, Suresh E, Bhadra S. Catalytic Direct α-Amination of Arylacetic Acid Synthons with Anilines. J Org Chem 2020; 85:13363-13374. [PMID: 32998508 DOI: 10.1021/acs.joc.0c02122] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A unique α-amination approach using various anilines has been developed for arylacetic acids via adaptation as benzazoles. The reaction proceeds through a single electron transfer mechanism utilizing an iron-based catalyst system to access α-(N-arylamino)acetic acid equivalents. Modification of approved drugs, facile cleavage of the benzazole auxiliary, and tolerance of amide linkage forming conditions constitute the potential applicability of this strategy.
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Affiliation(s)
- Jogendra Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Eringathodi Suresh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sukalyan Bhadra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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26
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Chen C, Shi C, Yang Y, Zhou B. Rh(iii)-catalyzed tandem annulative redox-neutral arylation/amidation of aromatic tethered alkenes. Chem Sci 2020; 11:12124-12129. [PMID: 34094427 PMCID: PMC8162841 DOI: 10.1039/d0sc04007j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Transition-metal-catalyzed directed C–H functionalization has emerged as a powerful and straightforward tool to construct C–C bonds and C–N bonds. Among these processes, the intramolecular annulative alkene hydroarylation reaction has received much attention because this intramolecular annulation can produce more complex and high value-added structural motifs found in numerous natural products and bioactive molecules. Despite remarkable progress, these annulative protocols developed to date remain limited to hydroarylation and functionalization of one side of alkenes, thus largely limiting the structural diversity and complexity. Herein, we developed a rhodium(iii)-catalyzed tandem annulative arylation/amidation reaction of aromatic tethered alkenes to deliver a variety of 2,3-dihydro-3-benzofuranmethanamine derivatives bearing an all-carbon quaternary stereo center by employing 3-substituted 1,4,2-dioxazol-5-ones as an amidating reagent to capture the transient C(sp3)–Rh intermediate. Notably, by simply changing the directing group, a second, unsymmetrical ortho C–H amidation/annulation can be achieved to provide tricyclic dihydrofuro[3,2-f]quinazolinones in good yields. A rhodium(iii)-catalyzed tandem annulative arylation/amidation reaction of aromatic tethered alkenes was developed to deliver a variety of 2,3-dihydro-3-benzofuranmethanamine derivatives.![]()
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Affiliation(s)
- Chao Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences 555 Zu Chong Zhi Road Shanghai 201203 China .,University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 China
| | - Chen Shi
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences 555 Zu Chong Zhi Road Shanghai 201203 China .,University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 China
| | - Yaxi Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences 555 Zu Chong Zhi Road Shanghai 201203 China .,University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 China.,School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
| | - Bing Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences 555 Zu Chong Zhi Road Shanghai 201203 China .,University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 China.,School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
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27
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Yang Y, Cao F, Yao L, Shi T, Tang B, Kuninobu Y, Wang Z. C-N and C-O Bond Formation in Copper-Catalyzed/Mediated sp 3 C-H Activation: Mechanistic Studies from Experimental and Computational Aspects. J Org Chem 2020; 85:9713-9726. [PMID: 32678601 DOI: 10.1021/acs.joc.0c01038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Mechanistic studies on Cu-catalyzed/mediated sp3 C-H amidation and acetoxylation are investigated from experimental and computational aspects. The concerted metalation-deprotonation (CMD) mechanism rather than a radical-involved pathway is proved to occur in amidation and acetoxylation reactions, and this is the rare example of the CMD mechanism involved in the more challenging sp3 C-H activations. Theoretical calculations demonstrated that CMD is the rate-determining step either for methylic or benzylic positions in amidation and acetoxylation reactions, and intermolecular nucleophilic addition of acetate anions is more favorable than the ring opening of β-lactams and intramolecular acetoxylation. These mechanistic studies on the divergent and condition-dependent product formation are critical for developing Cu-promoted C-H functionalization via the CMD mechanism.
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Affiliation(s)
- Yuhang Yang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Linbin Yao
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, China
| | - Tao Shi
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, China
| | - Bencan Tang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, China
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, Gansu, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, Gansu, China
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28
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Siddiqui AM, Khalid A, Khan A, Azad CS, Samim M, Khan IA. N‐Heterocyclic Carbene/Cobalt Cooperative Catalysis for the Chemo‐ and Regioselective C−N Bond Formation between Aldehyde and Amines/Amides. ChemCatChem 2020. [DOI: 10.1002/cctc.202000156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Asher M. Siddiqui
- Department of Chemistry School of Chemical and Life Sciences Jamia Hamdard New Delhi 110062 India
| | - Anam Khalid
- Department of Chemistry School of Chemical and Life Sciences Jamia Hamdard New Delhi 110062 India
| | - Arif Khan
- Department of Chemistry School of Chemical and Life Sciences Jamia Hamdard New Delhi 110062 India
| | - Chandra S. Azad
- School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 P.R. China
| | - Mohd. Samim
- Department of Chemistry School of Chemical and Life Sciences Jamia Hamdard New Delhi 110062 India
| | - Imran A. Khan
- Department of Chemistry School of Chemical and Life Sciences Jamia Hamdard New Delhi 110062 India
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29
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Li JJ, Wang CG, Yu JF, Wang P, Yu JQ. Cu-Catalyzed C-H Alkenylation of Benzoic Acid and Acrylic Acid Derivatives with Vinyl Boronates. Org Lett 2020; 22:4692-4696. [PMID: 32511925 DOI: 10.1021/acs.orglett.0c01469] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient Cu-catalyzed C-H alkenylation with acyclic and cyclic vinyl boronates was realized for the first time under mild conditions. The scope of the vinyl borons and the compatibility with functional groups including heterocycles are superior than Pd-catalyzed C-H coupling with vinyl borons, providing a reliable access to multisubstituted alkenes and dienes. Subsequent hydrogenation of the product from the internal vinyl borons will lead to installation of secondary alkyls.
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Affiliation(s)
- Jian-Jun Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Cheng-Gang Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Jin-Feng Yu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China.,CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Jin-Quan Yu
- The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla 92037, California, United States
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30
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Yu T, Zhu Q, Luo S. Pd-catalyzed imine-directed intramolecular C N bond formation through C(sp3) H activation: An efficient approach to multisubstituted pyrroles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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31
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Nozawa‐Kumada K, Saga S, Matsuzawa Y, Hayashi M, Shigeno M, Kondo Y. Copper‐Catalyzed Oxidative Benzylic C(sp
3
)−H Cyclization for the Synthesis of β‐Lactams. Chemistry 2020; 26:4496-4499. [DOI: 10.1002/chem.201905777] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/14/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Kanako Nozawa‐Kumada
- Graduate School of Pharmaceutical ScienceTohoku University Aoba, Sendai 980-8578 Japan
| | - Satoshi Saga
- Graduate School of Pharmaceutical ScienceTohoku University Aoba, Sendai 980-8578 Japan
| | - Yuta Matsuzawa
- Graduate School of Pharmaceutical ScienceTohoku University Aoba, Sendai 980-8578 Japan
| | - Masahito Hayashi
- Graduate School of Pharmaceutical ScienceTohoku University Aoba, Sendai 980-8578 Japan
| | - Masanori Shigeno
- Graduate School of Pharmaceutical ScienceTohoku University Aoba, Sendai 980-8578 Japan
| | - Yoshinori Kondo
- Graduate School of Pharmaceutical ScienceTohoku University Aoba, Sendai 980-8578 Japan
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32
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Elliott Q, Dos Passos Gomes G, Evoniuk CJ, Alabugin IV. Testing the limits of radical-anionic CH-amination: a 10-million-fold decrease in basicity opens a new path to hydroxyisoindolines via a mixed C-N/C-O-forming cascade. Chem Sci 2020; 11:6539-6555. [PMID: 34094120 PMCID: PMC8159354 DOI: 10.1039/c9sc06511c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
An intramolecular C(sp3)-H amidation proceeds in the presence of t-BuOK, molecular oxygen, and DMF. This transformation is initiated by the deprotonation of an acidic N-H bond and selective radical activation of a benzylic C-H bond towards hydrogen atom transfer (HAT). Cyclization of this radical-anion intermediate en route to a two-centered/three-electron (2c,3e) C-N bond removes electron density from nitrogen. As this electronegative element resists such an "oxidation", making nitrogen more electron rich is key to overcoming this problem. This work dramatically expands the range of N-anions that can participate in this process by using amides instead of anilines. The resulting 107-fold decrease in the N-component basicity (and nucleophilicity) doubles the activation barrier for C-N bond formation and makes this process nearly thermoneutral. Remarkably, this reaction also converts a weak reductant into a much stronger reductant. Such "reductant upconversion" allows mild oxidants like molecular oxygen to complete the first part of the cascade. In contrast, the second stage of NH/CH activation forms a highly stabilized radical-anion intermediate incapable of undergoing electron transfer to oxygen. Because the oxidation is unfavored, an alternative reaction path opens via coupling between the radical anion intermediate and either superoxide or hydroperoxide radical. The hydroperoxide intermediate transforms into the final hydroxyisoindoline products under basic conditions. The use of TEMPO as an additive was found to activate less reactive amides. The combination of experimental and computational data outlines a conceptually new mechanism for conversion of unprotected amides into hydroxyisoindolines proceeding as a sequence of C-H amidation and C-H oxidation.
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Affiliation(s)
- Quintin Elliott
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Gabriel Dos Passos Gomes
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Christopher J Evoniuk
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Igor V Alabugin
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
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33
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Trowbridge A, Walton SM, Gaunt MJ. New Strategies for the Transition-Metal Catalyzed Synthesis of Aliphatic Amines. Chem Rev 2020; 120:2613-2692. [DOI: 10.1021/acs.chemrev.9b00462] [Citation(s) in RCA: 310] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Aaron Trowbridge
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Scarlett M. Walton
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- Oncology
- IMED Biotech Unit, AstraZeneca, Darwin Building, Unit 310, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, United Kingdom
| | - Matthew J. Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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34
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Teja C, Nawaz Khan FR. Facile Synthesis of 2-Acylthieno[2,3-b]quinolines via Cu-TEMPO-Catalyzed Dehydrogenation, sp2-C–H Functionalization (Nucleophilic Thiolation by S8) of 2-Haloquinolinyl Ketones. Org Lett 2020; 22:1726-1730. [DOI: 10.1021/acs.orglett.9b04598] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology. Vellore 632014, Tamil Nadu India
| | - Fazlur Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology. Vellore 632014, Tamil Nadu India
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35
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Long J, Le L, Iwasaki T, Qiu R, Kambe N. Copper-Catalyzed Amination of C(sp 3)-H bonds: From Anilides to Indolines. J Org Chem 2020; 85:482-492. [PMID: 31769677 DOI: 10.1021/acs.joc.9b02404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Copper-catalyzed oxidative intramolecular cyclization of o-alkylated anilines via cleavage of C(sp3)-H and N-H bonds for the production of indolines is described. This approach provides a straightforward strategy for the synthesis of nitrogen-containing heterocyclic compounds through the functionalization of unactivated C(sp3)-H bonds with high site selectivity. The present catalytic system shows high preference for functionalization of unactivated C(sp3)-H bonds over C(sp2)-H bonds, leading to C-N bond formation.
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Affiliation(s)
- Jinguo Long
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China
| | - Liyuan Le
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China
| | - Takanori Iwasaki
- Department of Applied Chemistry, Graduate School of Engineering , Osaka University , Suita, Osaka 565-0871 , Japan.,Department of Chemistry and Biotechnology, Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyoku, Tokyo 113-8656 , Japan
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China.,Department of Applied Chemistry, Graduate School of Engineering , Osaka University , Suita, Osaka 565-0871 , Japan
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P.R. China.,Department of Applied Chemistry, Graduate School of Engineering , Osaka University , Suita, Osaka 565-0871 , Japan
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36
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Sattar M, Kumar N, Yadav P, Mandhar Y, Kumar S. 8-Aminoquinoline-Assisted Synthesis and Crystal Structure Studies of Ferrocenyl Aryl Sulfones. Chem Asian J 2019; 14:4807-4813. [PMID: 31659838 DOI: 10.1002/asia.201901334] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/25/2019] [Indexed: 01/05/2023]
Abstract
A copper-catalyzed 8-aminoquinoline-directed oxidative cross-coupling of the C-H bond of ferrocene with sodium arylsulfinates has been achieved. The robust copper catalyst tolerates a range of methyl, tert-butyl, bromo, chloro, iodo and nitro functional groups in the phenyl ring, and set the stage for the synthesis of substituted ferrocene sulfones. Furthermore, X-ray crystal structure study on several ferrocenyl sulfones reveals the tetrahedral geometry around sulfur; interestingly, the O-S-O angle is larger than the electropositive substituent C-S-C angle which could be explained by Bent's rule. Further, unusual intramolecular O(S)⋅⋅⋅N(amide) short contacts (2.925-3) and O(S)⋅⋅⋅C=O were also noticed in ferrocenyl sulfones.
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Affiliation(s)
- Moh Sattar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
| | - Nitin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
| | - Prateek Yadav
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
| | - Yogesh Mandhar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
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37
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Zhang M, Wang Q, Peng Y, Chen Z, Wan C, Chen J, Zhao Y, Zhang R, Zhang AQ. Transition metal-catalyzed sp 3 C-H activation and intramolecular C-N coupling to construct nitrogen heterocyclic scaffolds. Chem Commun (Camb) 2019; 55:13048-13065. [PMID: 31621700 DOI: 10.1039/c9cc06609h] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nitrogen heterocycles are of great medicinal importance, and the construction of nitrogen heterocyclic scaffolds has been one of the focuses in synthetic organic chemistry. Recently, the strategy of transition metal-catalyzed sp3 C-H activation and intramolecular C-N coupling to construct nitrogen heterocyclic scaffolds has been well developed. Palladium, copper, silver, nickel, cobalt, ruthenium and rhodium catalysis were successfully used for the construction of nitrogen heterocyclic scaffolds, aziridines, azetidines, pyrrolidines, pyrrolidine-2,5-diones, indolines, isoindolines, isoindolinones, tetrahydropyridines, oxazolidinones, oxazinanones, β-lactams, γ-lactams etc., which have been synthesized by the sp3 C-H activation strategy. Here, we summarize the progress of transition metal-catalyzed sp3 C-H activation/intramolecular C-N bond formation, and introduce both the reaction development and mechanisms in numerous synthetically useful intramolecular sp3 C-H catalytic aminations/amidations.
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Affiliation(s)
- Ming Zhang
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Qiuhong Wang
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Yiyuan Peng
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Zhiyuan Chen
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Changfeng Wan
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Junmin Chen
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Yongli Zhao
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Rongli Zhang
- College of Chemistry and Chemical Engineering and Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University (Yaohu campus), 99 Ziyangdadao Avenue, Nanchang, Jiangxi 330022, China.
| | - Ai Qin Zhang
- Department of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
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38
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Sun X, Wu Z, Qi W, Ji X, Cheng C, Zhang Y. Synthesis of Indolines by Palladium-Catalyzed Intermolecular Amination of Unactivated C(sp3)–H Bonds. Org Lett 2019; 21:6508-6512. [DOI: 10.1021/acs.orglett.9b02386] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xueliang Sun
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Zhuo Wu
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Weixin Qi
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Xiaoming Ji
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Cang Cheng
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
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39
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Sen C, Sahoo T, Singh H, Suresh E, Ghosh SC. Visible Light-Promoted Photocatalytic C-5 Carboxylation of 8-Aminoquinoline Amides and Sulfonamides via a Single Electron Transfer Pathway. J Org Chem 2019; 84:9869-9896. [PMID: 31307188 DOI: 10.1021/acs.joc.9b00942] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient photocatalytic method was developed for the remote C5-H bond carboxylation of 8-aminoquinoline amide and sulfonamide derivatives. This methodology uses in situ generated •CBr3 radical as a carboxylation agent with alcohol and is further extended to a variety of arenes and heteroarenes to synthesize the desired carboxylated product in moderate-to-good yields. The reaction proceeding through a single electron transfer pathway was established by a control experiment, and a butylated hydroxytoluene-trapped aryl radical cation intermediate in high-resolution mass spectrometry was identified.
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40
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Romero AH. Fused Heteroaromatic Rings via Metal-Mediated/Catalyzed Intramolecular C–H Activation: A Comprehensive Review. Top Curr Chem (Cham) 2019; 377:21. [DOI: 10.1007/s41061-019-0246-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/22/2019] [Indexed: 12/22/2022]
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41
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St John‐Campbell S, Bull JA. Base Metal Catalysis in Directed C(
sp
3
)−H Functionalisation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900532] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - James A. Bull
- Molecular Sciences Research HubWhite City Campus Wood Lane London W12 0BZ U.K
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42
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Jiang Y, Zhang SQ, Cao F, Zou JX, Yu JL, Shi BF, Hong X, Wang Z. Unexpected Stability of CO-Coordinated Palladacycle in Bidentate Auxiliary Directed C(sp3)–H Bond Activation: A Combined Experimental and Computational Study. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Shuo-Qing Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Jiao-Xia Zou
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Jing-Lu Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
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43
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Zhang H, Zhou Y, Tian P, Jiang C. Copper-Catalyzed Amide Radical-Directed Cyanation of Unactivated Csp3–H Bonds. Org Lett 2019; 21:1921-1925. [DOI: 10.1021/acs.orglett.9b00553] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongwei Zhang
- Department of Chemistry, College of Science, China University of Petroleum (East China) Qingdao, Shandong 266580, P. R. China
| | - Yulu Zhou
- Department of Chemistry, College of Science, China University of Petroleum (East China) Qingdao, Shandong 266580, P. R. China
| | - Peiyuan Tian
- Department of Chemistry, College of Science, China University of Petroleum (East China) Qingdao, Shandong 266580, P. R. China
| | - Cuiyu Jiang
- Department of Chemistry, College of Science, China University of Petroleum (East China) Qingdao, Shandong 266580, P. R. China
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44
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Lei J, Yang Y, Peng L, Wu L, Peng P, Qiu R, Chen Y, Au C, Yin S. Copper‐Catalyzed Oxidative C(sp3)−H/N−H Cross‐Coupling of Hydrocarbons with P(O)−NH Compounds: the Accelerating Effect Induced by Carboxylic Acid Coproduct. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jian Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
| | - Yincai Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
| | - Lingteng Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
| | - Lesong Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
| | - Ping Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
| | - Yi Chen
- School of MedicineHunan University of Chinese Medicine Changsha 410208 People's Republic of China
| | - Chak‐Tong Au
- College of Chemistry and Chemical EngineeringHunan Institute of Engineering Xiangtan 411104, Hunan People's Republic of China
| | - Shuang‐Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, School of Materials Science and EngineeringHunan University Changsha 410082 People's Republic of China
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45
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Reed NL, Herman MI, Miltchev VP, Yoon TP. Tandem copper and photoredox catalysis in photocatalytic alkene difunctionalization reactions. Beilstein J Org Chem 2019; 15:351-356. [PMID: 30800183 PMCID: PMC6369989 DOI: 10.3762/bjoc.15.30] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/22/2019] [Indexed: 11/23/2022] Open
Abstract
Oxidative alkene difunctionalization reactions are important in synthetic organic chemistry because they can install polar functional groups onto simple non-polar alkene moieties. Many of the most common methods for these reactions rely upon the reactivity of pre-oxidized electrophilic heteroatom donors that can often be unstable, explosive, or difficult to handle. Herein, we describe a method for alkene oxyamination and diamination that utilizes simple carbamate and urea groups as nucleophilic heteroatom donors. This method uses a tandem copper-photoredox catalyst system that is operationally convenient. The identity of the terminal oxidant is critical in these studies. Ag(I) salts proved to be unique in their ability to turn over the copper cocatalyst without deleteriously impacting the reactivity of the organoradical intermediates.
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Affiliation(s)
- Nicholas L Reed
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Madeline I Herman
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Vladimir P Miltchev
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Tehshik P Yoon
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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46
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Peng Y, Lei J, Qiu R, Peng L, Au CT, Yin SF. Chelation-assisted C-N cross-coupling of phosphinamides and aryl boronic acids with copper powder at room temperature. Org Biomol Chem 2019; 16:4065-4070. [PMID: 29774922 DOI: 10.1039/c8ob00907d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A protocol for the chelation-assisted C-N cross-coupling of phosphinamides and aryl boronic acids with copper powder under an oxygen atmosphere is reported. This reaction proceeds efficiently to afford fully substituted unsymmetrical N-arylation phosphinamides at room temperature in excellent yields. Diverse unstable functional groups on the benzene ring of aryl boronic acids such as vinyl, formyl, acetyl, sulfonyl, acetylamino, cyano, nitro, and trifluoromethyl can be accommodated.
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Affiliation(s)
- Yao Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
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47
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Wang F, Li X, Li Z, Zhou S, Zhang W. Copper Salts/TBAB-Catalyzed Chemo- and Regioselective β-C(sp 3)-H Acyloxylation of Aliphatic Amides. ACS OMEGA 2019; 4:331-343. [PMID: 31459332 PMCID: PMC6648367 DOI: 10.1021/acsomega.8b02430] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 12/25/2018] [Indexed: 06/10/2023]
Abstract
An efficient Cu(II)-catalyzed and tetrabutylammonium bromide (TBAB)-promoted strategy for highly regioselective and chemoselective C(sp3)-H acyloxylation of aliphatic amides is described. Acyloxylation occurs selectively at the β position with a broad substrate scope of carboxylic acids and aliphatic amides and good functional group compatibility. Notably, the competing reaction of intramolecular dehydrogenative amidation and intermolecular acyloxylation could be efficiently controlled by the amount of copper salt and the addition of TBAB. The intramolecular dehydrogenative amidation product was obtained in high yield when the amount of copper salts was increased. However, when TBAB was used as an additive, a preference for acyloxylation over intramolecular amidation was observed and the acyloxylated products were obtained in good yield. Preliminary studies were carried out to gain insights into the mechanism.
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Affiliation(s)
- Feifan Wang
- College
of Chemistry and Materials Science and Key Laboratory of Functional Molecular
Solids, Ministry of Education, Anhui Normal
University, Wuhu 241000, China
| | - Xiaoyue Li
- College
of Chemistry and Materials Science and Key Laboratory of Functional Molecular
Solids, Ministry of Education, Anhui Normal
University, Wuhu 241000, China
| | - Zhongyu Li
- College
of Chemistry and Materials Science and Key Laboratory of Functional Molecular
Solids, Ministry of Education, Anhui Normal
University, Wuhu 241000, China
| | - Shuangliu Zhou
- College
of Chemistry and Materials Science and Key Laboratory of Functional Molecular
Solids, Ministry of Education, Anhui Normal
University, Wuhu 241000, China
| | - Wu Zhang
- College
of Chemistry and Materials Science and Key Laboratory of Functional Molecular
Solids, Ministry of Education, Anhui Normal
University, Wuhu 241000, China
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48
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Chen C, Hao Y, Zhang TY, Pan JL, Ding J, Xiang HY, Wang M, Ding TM, Duan A, Zhang SY. Computational and experimental studies on copper-mediated selective cascade C-H/N-H annulation of electron-deficient acrylamide with arynes. Chem Commun (Camb) 2019; 55:755-758. [PMID: 30500009 DOI: 10.1039/c8cc08708c] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An efficient and convenient copper-mediated method has been developed to achieve direct cascade C-H/N-H annulation to synthesize 2-quinolinones from electron-deficient acrylamides and arynes. This method highlights an emerging but simple strategy to transform inert C-H bonds into versatile functional groups in organic synthesis to provide a new method of synthesizing 2-quinolinones efficiently. Mechanistic investigations by experimental and density functional theory (DFT) studies suggest that an organometallic C-H activation via a Cu(iii) intermediate is likely to be involved in the reaction.
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Affiliation(s)
- Chao Chen
- Sixth People's Hospital South Campus, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
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49
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Stateman LM, Wappes EA, Nakafuku KM, Edwards KM, Nagib DA. Catalytic β C-H amination via an imidate radical relay. Chem Sci 2019; 10:2693-2699. [PMID: 30996986 PMCID: PMC6419930 DOI: 10.1039/c8sc05685d] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 01/09/2019] [Indexed: 01/03/2023] Open
Abstract
An iodine-catalyzed strategy for β C–H amination of alcohols is enabled by a chemo-, regio-, and stereo-selective H-atom transfer mechanism.
The first catalytic strategy to harness imidate radicals for C–H functionalization has been developed. This iodine-catalyzed approach enables β C–H amination of alcohols by an imidate-mediated radical relay. In contrast to our first-generation, (super)stoichiometric protocol, this catalytic method enables faster and more efficient reactivity. Furthermore, lower oxidant concentration affords broader functional group tolerance, including alkenes, alkynes, alcohols, carbonyls, and heteroarenes. Mechanistic experiments interrogating the electronic nature of the key 1,5 H-atom transfer event are included, as well as probes for chemo-, regio-, and stereo-selectivity.
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Affiliation(s)
- Leah M Stateman
- The Ohio State University , Department of Chemistry and Biochemistry , Columbus , OH 43210 , USA .
| | - Ethan A Wappes
- The Ohio State University , Department of Chemistry and Biochemistry , Columbus , OH 43210 , USA .
| | - Kohki M Nakafuku
- The Ohio State University , Department of Chemistry and Biochemistry , Columbus , OH 43210 , USA .
| | - Kara M Edwards
- The Ohio State University , Department of Chemistry and Biochemistry , Columbus , OH 43210 , USA .
| | - David A Nagib
- The Ohio State University , Department of Chemistry and Biochemistry , Columbus , OH 43210 , USA .
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50
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Peng X, Wang HH, Cao F, Zhang HH, Lu YM, Hu XL, Tan W, Wang Z. TBHP promoted demethylation of α-amino carbonyl compounds: a concise approach to substituted γ-lactams. Org Chem Front 2019. [DOI: 10.1039/c9qo00103d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel tert-butyl hydroperoxide (TBHP) promoted CH2-extrusion reaction of α-amino carbonyl compounds has been developed, which is driven by a demethylenation process to give various ring contraction products γ-lactams under radical conditions.
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Affiliation(s)
- Xue Peng
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Hui-Hong Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | | | - Ying-Mei Lu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Xiao-Ling Hu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Wen Tan
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
| | - Zhen Wang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- China
- State Key Laboratory of Applied Organic Chemistry
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