1
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Hu X, Zhu Z, Li Z, Adili A, Odagi M, Abboud KA, Seidel D. Catalytic Enantioselective [4+2] Cycloadditions of Salicylaldehyde Acetals with Enol Ethers. Angew Chem Int Ed Engl 2024; 63:e202315759. [PMID: 38055210 DOI: 10.1002/anie.202315759] [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: 10/18/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/07/2023]
Abstract
A readily accessible conjugate-base-stabilized carboxylic acid (CBSCA) catalyst facilitates highly enantioselective [4+2] cycloaddition reactions of salicylaldehyde-derived acetals and cyclic enol ethers, resulting in the formation of polycyclic chromanes with oxygenation in the 2- and 4-positions. Stereochemically more complex products can be obtained from racemic enol ethers. Spirocyclic products are also accessible.
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Affiliation(s)
- Xiaojun Hu
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Zhengbo Zhu
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Zhongzheng Li
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Alafate Adili
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Minami Odagi
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei city, 184-8588, Tokyo, Japan
| | - Khalil A Abboud
- Center for X-ray Crystallography, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
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2
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Zeng L, Liu S, Lan Y, Gao L. Catalytic asymmetric oxa-Diels-Alder reaction of acroleins with simple alkenes. Nat Commun 2023; 14:3511. [PMID: 37316484 DOI: 10.1038/s41467-023-39184-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/30/2023] [Indexed: 06/16/2023] Open
Abstract
The catalytic asymmetric inverse-electron-demand oxa-Diels-Alder (IODA) reaction is a highly effective synthetic method for creating enantioenriched six-membered oxygen-containing heterocycles. Despite significant effort in this area, simple α,β-unsaturated aldehydes/ketones and nonpolarized alkenes are seldom utilized as substrates due to their low reactivity and difficulties in achieving enantiocontrol. This report describes an intermolecular asymmetric IODA reaction between α-bromoacroleins and neutral alkenes that is catalyzed by oxazaborolidinium cation 1f. The resulting dihydropyrans are produced in high yields and excellent enantioselectivities over a broad range of substrates. The use of acrolein in the IODA reaction produces 3,4-dihydropyran with an unoccupied C6 position in the ring structure. This unique feature is utilized in the efficient synthesis of (+)-Centrolobine, demonstrating the practical synthetic utility of this reaction. Additionally, the study found that 2,6-trans-tetrahydropyran can undergo efficient epimerization into 2,6-cis-tetrahydropyran under Lewis acidic conditions. This structural core is widespread in natural products.
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Affiliation(s)
- Lei Zeng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Shihan Liu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China.
- ZhengZhou JiShu Institute of AI Science, Zhengzhou, 450000, P. R. China.
| | - Lizhu Gao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China.
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3
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Malakar CC, Dell'Amico L, Zhang W. Dual Catalysis in Organic Synthesis: Current Challenges and New Trends. European J Org Chem 2022. [DOI: 10.1002/ejoc.202201114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chandi C. Malakar
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Luca Dell'Amico
- Department of Chemical Sciences University of Padova Via Marzolo 1 35131 Padova Italy
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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4
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Wang X, Yang J, Lv R, Song P, Ye D, Liu J, Li X. Palladium-Catalyzed [4+4] Cycloadditions for Highly Diastereo- and Enantioselective Synthesis of Functionalized Benzo[b]oxocines. Org Chem Front 2022. [DOI: 10.1039/d2qo00422d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric cycloaddition reactions represent a powerful strategy for building up complex molecular architectures, especially those with medium-sized rings. Herein, we disclose a highly diastereo- and enantioselective cycloaddition strategy that involves...
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5
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Gharui C, Parida C, Pan SC. Organocatalytic Asymmetric Addition of Aromatic α-Cyanoketones to o-Quinone Methides: Synthesis of 3,4-Dihydrocoumarins and Tetrasubstituted Chromans. J Org Chem 2021; 86:13071-13081. [PMID: 34464133 DOI: 10.1021/acs.joc.1c00435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The first organocatalytic asymmetric addition of aromatic α-cyanoketones to in situ-generated o-quinone methides has been developed. The products 3,4-dihydrocoumarin and tetrasubstituted chroman were obtained via addition of aromatic α-cyanoketones to in situ-generated o-quinone methides followed by treatment with 0.7 N HCl. With 10 mol % catalyst, the desired products were obtained in high enantio- and diastereoselectivities.
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Affiliation(s)
- Chandan Gharui
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
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6
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Ma Y, He X, Yang Q, Boucherif A, Xuan J. Recent Advances in Organocatalytic Asymmetric Cycloaddition Reactions Through
Ortho
‐Quinone Methide Scaffolds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100141] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yu‐Hong Ma
- College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Yichang Hubei 443002 P. R. China
| | - Xiao‐Yu He
- College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Yichang Hubei 443002 P. R. China
| | - Qing‐Qing Yang
- College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Yichang Hubei 443002 P. R. China
| | - Amina Boucherif
- Department of biology Aboubeker Belkaïd University BP119 Tlemcen 13000 Algeria
| | - Jun Xuan
- College of Chemistry & Chemical Engineering Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials Anhui University Anhui Hefei 230601 P. R. China
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7
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Osyanin VA, Lukashenko AV, Osipov DV. Cycloaddition reactions of o-quinone methides with polarized olefins. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4971] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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Zhang H, Guan XK, Sun DY, Liu GF, Gao JG, Zhang GL, Zhang SQ. Asymmetric syntheses of spiro[benzofuro-cyclopenta[1,2-b]indole-indoline] scaffolds via consecutive cyclization. Chem Commun (Camb) 2021; 57:2313-2316. [PMID: 33533784 DOI: 10.1039/d0cc08083g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
An efficient method to construct enantioenriched spiro[benzofuro-cyclopenta[1,2-b]indole-indoline] scaffolds via consecutive cyclization is described here. The new scaffolds possess five successive chiral stereogenic centers and two spiroheterocycles. A range of highly enantioenriched scaffolds has been obtained with up to 93% yield, 99% ee and >19 : 1 d.r. catalyzed by Brønsted acid catalysts.
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Affiliation(s)
- Heng Zhang
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
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9
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Olyaei A, Feizy E, Aghajanzadeh A. One‐pot synthesis of novel (
E
)‐3‐(3,
8a‐dihydro‐2
H
‐oxazolo[3,2‐a]pyridin‐2‐ylidene)chroman‐2‐one derivatives. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Elaheh Feizy
- Department of Chemistry Payame Noor University Tehran Iran
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10
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Wang HQ, Ma W, Sun A, Sun XY, Jiang C, Zhang YC, Shi F. (4 + 2) cyclization of aza- o-quinone methides with azlactones: construction of biologically important dihydroquinolinone frameworks. Org Biomol Chem 2021; 19:1334-1343. [PMID: 33464269 DOI: 10.1039/d0ob02388d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A base-promoted (4 + 2) cyclization of aza-o-quinone methides (aza-o-QMs) in situ generated from N-(o-chloromethyl)aryl amides was established. In this approach, azlactones were utilized as competent two-atom reaction partners to undergo (4 + 2) cyclization with aza-o-QMs, which afforded a series of dihydroquinolinone derivatives in overall good yields (up to 98%). This protocol has not only advanced the development of aza-o-QM-involved reactions, but also offered a useful method for constructing biologically important dihydroquinolinone frameworks.
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Affiliation(s)
- Hai-Qing Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.
| | - Wenjing Ma
- Core Facility Center of Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Ao Sun
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.
| | - Xin-Yue Sun
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.
| | - Chao Jiang
- Core Facility Center of Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Yu-Chen Zhang
- 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.
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11
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Liu X, Wang K, Liu Y, Li C. Divergent Asymmetric Reactions of ortho-Quinone Methides with α-Thiocyanato Indanones for the Synthesis of Spiro- and Fused-Indanones. Chemistry 2021; 27:735-739. [PMID: 32909264 DOI: 10.1002/chem.202003647] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/07/2020] [Indexed: 11/10/2022]
Abstract
Reported in this work is a water triggered chemo-divergent enantioselective spiro-annulation and cascade reaction of ortho-quinone methides (o-QMs) with α-thiocyanato indanones catalyzed by a chiral organic base. In the case of spiro-annulation, the use of trace amount of water as additive is critical to achieve high enantioselectivity (up to 96 % ee). We found that a cascade reaction was enabled by just tuning the ratio of water in solvent. Accordingly, two new highly efficient asymmetric reactions for the divergent synthesis of spiro- and fused-indanone scaffolds with excellent enantioselectivities (up to 99 % ee) were developed. Mechanistic investigations suggest that interfacial hydrogen bonding may play an important role in achieving the switchable reaction pathways.
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Affiliation(s)
- Xianghui Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kai Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yan Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
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12
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Zhu B, Yang T, Gu Y, Zhu S, Zhu G, Chang J. Enantioselective organocatalytic amination of 2-perfluoroalkyl-oxazol-5(2H)-ones towards the synthesis of chiral N,O-aminals with perfluoroalkyl and amino groups. Org Chem Front 2021. [DOI: 10.1039/d1qo00569c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The first highly enantioselective amination at the C-2 position of oxazol-5(2H)-ones has been presented. Two efficient relay asymmetric transformation processes were successfully utilized to synthesize chiral N,O-aminals with a quaternary center.
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Affiliation(s)
- Bo Zhu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
| | - Tianxiao Yang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
| | - Yingxin Gu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
| | - Shuping Zhu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
| | - Gongming Zhu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
| | - Junbiao Chang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
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13
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Zhao M, Li F, Cheng Y, Wang Y, Zhou Z. Optically Active 3,4-Dihydrocoumarins via Organocatalyzed Asymmetric [4+2] Annulation of ortho-Hydroxyl Functionalized p-Quinone Methides with β-Keto Acylpyrazoles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105055] [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]
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14
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Li NK, Sun BB, Chen JB, Yang HD, Wang BL, Yu JQ, Wang XW, Wang Z. Box-copper catalyzed asymmetric inverse-electron-demand oxa-hetero-Diels–Alder reaction for efficient synthesis of spiro pyranyl-oxindole derivatives. Org Chem Front 2021. [DOI: 10.1039/d0qo01407a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A chiral Box/Cu catalyzed asymmetric IEDDA reaction between isatin-derived β,γ-unsaturated α-ketoesters and electron-rich olefins was developed, which provided chiral spiro oxindole-pyrans in excellent yields with excellent stereoselectivities.
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Affiliation(s)
- Nai-Kai Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jun-Bo Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Hao-Di Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Bai-Lin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jie-Qiang Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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15
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Xiao X, Shao B, Lu Y, Cao Q, Xia C, Chen F. Recent Advances in Asymmetric Organomulticatalysis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000961] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiao Xiao
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Bing‐Xuan Shao
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Yin‐Jie Lu
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Qian‐Qian Cao
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Chun‐Nian Xia
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Fen‐Er Chen
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules Fudan University Shanghai 200433 People's Republic China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs Shanghai 200433 People's Republic China
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16
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Yuan WC, Quan BX, Zhao JQ, You Y, Wang ZH, Zhou MQ. [4 + 2] Annulation Reaction of In Situ Generated Azoalkenes with Azlactones: Access to 4,5-Dihydropyridazin-3(2 H)-Ones. J Org Chem 2020; 85:11812-11821. [PMID: 32856456 DOI: 10.1021/acs.joc.0c01592] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An unprecedented [4 + 2] annulation reaction between in situ formed azoalkenes and azlactones has been developed. This reaction provides a facile access to an array of 4,5-dihydropyridazin-3(2H)-one derivatives, which are very promising in medicinal applications as potential biologically active candidates. Notably, these dihydropyridazinones could also be synthesized via a one-pot reaction protocol by using the in situ formed azlactones from N-acyl amino acids and in situ generated azoalkenes from α-halogeno hydrazones. The potential applications of the methodology were also demonstrated by gram-scale experiments and the versatile conversions of the products into other nitrogen-containing compounds.
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Affiliation(s)
- Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.,National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Bao-Xue Quan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- 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
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17
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Zhu Z, Odagi M, Supantanapong N, Xu W, Saame J, Kirm HU, Abboud KA, Leito I, Seidel D. Modular Design of Chiral Conjugate-Base-Stabilized Carboxylic Acids: Catalytic Enantioselective [4 + 2] Cycloadditions of Acetals. J Am Chem Soc 2020; 142:15252-15258. [PMID: 32830974 DOI: 10.1021/jacs.0c07212] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Readily available 1,2-amino alcohols provide the framework for a new generation of chiral carboxylic acid catalysts that rival the acidity of the widely used chiral phosphoric acid catalyst (S)-TRIP. Covalently linked thiourea sites stabilize the carboxylate conjugate bases of these catalysts via anion-binding, an interaction that is largely responsible for the low pKa values. The utility of the new catalysts is illustrated in the context of challenging [4 + 2] cycloadditions of salicylaldehyde-derived acetals with homoallylic and bishomoallylic alcohols, providing polycyclic chromanes in a highly enantioselective fashion.
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Affiliation(s)
- Zhengbo Zhu
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Minami Odagi
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States.,Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei city, 184-8588, Tokyo, Japan
| | - Nantamon Supantanapong
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Weici Xu
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Jaan Saame
- Institute of Chemistry, University of Tartu, Tartu, Estonia
| | | | - Khalil A Abboud
- Center for X-ray Crystallography, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Ivo Leito
- Institute of Chemistry, University of Tartu, Tartu, Estonia
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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18
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Skrzyńska A, Frankowski S, Albrecht Ł. Cyclic 1‐Azadienes in the Organocatalytic Inverse‐Electron‐Demand Aza‐Diels‐Alder Cycloadditions. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000332] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Anna Skrzyńska
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Sebastian Frankowski
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
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19
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Göricke F, Haseloff S, Laue M, Schneider M, Brumme T, Schneider C. Phosphoric Acid Catalyzed Formation of Hydrogen-Bonded o-Quinone Methides. Enantioselective Cycloaddition with β-Dicarbonyl Compounds toward Benzannulated Oxygen Heterocycles. J Org Chem 2020; 85:11699-11720. [DOI: 10.1021/acs.joc.0c01375] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fabian Göricke
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Stefan Haseloff
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Michael Laue
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Maximilian Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Thomas Brumme
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstraße 2, 04103 Leipzig, Germany
- Theoretische Chemie, Technische Universität Dresden, Bergstraße 66c, 01062 Dresden, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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20
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He S, Gu H, He YP, Yang X. Asymmetric Aza-Diels–Alder Reactions of in Situ Generated β,β-Disubstituted α,β-Unsaturated N–H Ketimines Catalyzed by Chiral Phosphoric Acids. Org Lett 2020; 22:5633-5639. [DOI: 10.1021/acs.orglett.0c01994] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shunlong He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China
| | - Huanchao Gu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yu-Peng He
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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21
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Feng S, Yang B, Chen T, Wang R, Deng YH, Shao Z. Catalytic Asymmetric [4 + 2] Cycloaddition of ortho-Alkenyl Naphthols/Phenols with ortho-Quinone Methides: Highly Stereoselective Synthesis of Chiral 2,3,4-Trisubstituted Chromans. J Org Chem 2020; 85:5231-5244. [PMID: 32186180 DOI: 10.1021/acs.joc.9b03302] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chiral phosphoric acid-catalyzed biomimetic asymmetric [4 + 2] cycloaddition of ortho-alkenyl naphthols/phenols and ortho-quinone methides (o-QMs) has been demonstrated to afford various important 2,3,4-trisubstituted chromans in high yields with excellent enantio- and diastereoselectivities (up to 99% yield, 99% ee, >20:1 dr). Notably, this methodology not only enabled access to the trans-cis chiral trisubstituted chromans from 1-alkenyl 2-naphthols but also is compatible with 2-alkenyl 1-naphthols and phenols to deliver trans-trans chiral trisubstituted chromans.
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Affiliation(s)
- Shubo Feng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Binmiao Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Tao Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Ran Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Yu-Hua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
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22
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Suneja A, Loui HJ, Schneider C. Cooperative Catalysis for the Highly Diastereo- and Enantioselective [4+3]-Cycloannulation of ortho-Quinone Methides and Carbonyl Ylides. Angew Chem Int Ed Engl 2020; 59:5536-5540. [PMID: 31895488 PMCID: PMC7155103 DOI: 10.1002/anie.201913603] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/12/2019] [Indexed: 11/08/2022]
Abstract
We describe herein a highly diastereo- and enantioselective [4+3]-cycloannulation of ortho-quinone methides and carbonyl ylides to furnish functionalized oxa-bridged dibenzooxacines with excellent yields and stereoselectivity in a single synthetic step. The combination of rhodium and chiral phosphoric acid catalysis working in concert to generate both transient intermediates in situ provides direct access to complex bicyclic products with two quaternary and one tertiary stereogenic centers. The products may be further functionalized into valuable and enantiomerically highly enriched building blocks.
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Affiliation(s)
- Arun Suneja
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
| | - Henning Jakob Loui
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
| | - Christoph Schneider
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
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23
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An X, Du J, Jia Z, Zhang Q, Yu K, Zhang Y, Zhao X, Fang R, Fan C. Asymmetric Catalytic [4+5] Annulation of
ortho
‐Quinone Methides with Vinylethylene Carbonates and its Extension to Stereoselective Tandem Rearrangement. Chemistry 2020; 26:3803-3809. [DOI: 10.1002/chem.201904903] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Xian‐Tao An
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Ji‐Yuan Du
- College of Chemistry and Chemical EngineeringLiaocheng University 1 Hunan Road Liaocheng 252059 China
| | - Zhi‐Long Jia
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Qing Zhang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Ke‐Yin Yu
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Yi‐Zhou Zhang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Xian‐He Zhao
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Ran Fang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Chun‐An Fan
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
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24
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Yang W, Wang H, Pan Z, Li Z, Deng W. Asymmetric synthesis of pyrrolo[1,2-a]indoles via organocatalytic [3 + 2] annulation of substituted 2-vinylindoles with azlactones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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Suneja A, Loui HJ, Schneider C. Kooperative Katalyse für die diastereo‐ und enantioselektive [4+3]‐Cycloanellierung von
ortho
‐Chinonmethiden und Carbonylyliden. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913603] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Arun Suneja
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
| | - Henning Jakob Loui
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
| | - Christoph Schneider
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
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26
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Boufroua N, Dunach E, Fontaine-Vive F, Achouche-Bouzroura S, Poulain-Martini S. In(OTf) 3-catalysed easy access to dihydropyranocoumarin and dihydropyranochromone derivatives. NEW J CHEM 2020. [DOI: 10.1039/d0nj00080a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Allylation/cyclization of β-ketolactone-type heterocyclic compounds, under In(OTf)3-catalysis, for the construction of biologically active dihydropyranocoumarin and dihydropyranochromone derivatives.
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Affiliation(s)
- Naouel Boufroua
- Université Côte d’Azur
- Institut de Chimie de Nice
- CNRS
- Parc Valrose
- 06108 Nice Cedex 2
| | - Elisabet Dunach
- Université Côte d’Azur
- Institut de Chimie de Nice
- CNRS
- Parc Valrose
- 06108 Nice Cedex 2
| | - Fabien Fontaine-Vive
- Université Côte d’Azur
- Institut de Chimie de Nice
- CNRS
- Parc Valrose
- 06108 Nice Cedex 2
| | - Samia Achouche-Bouzroura
- Laboratoire de Chimie Organique Appliquée
- Faculté de Chimie
- Université des Sciences et de la Technologie Houari Boumediene
- Alger
- Algeria
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27
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Wu SF, Tu MS, Hang QQ, Zhang S, Ding H, Zhang YC, Shi F. Construction of chiral chroman scaffolds via catalytic asymmetric (4 + 2) cyclizations of para-quinone methide derivatives with 3-vinylindoles. Org Biomol Chem 2020; 18:5388-5399. [DOI: 10.1039/d0ob01049a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The title reaction has been established in the presence of chiral phosphoric acid, affording chiral chroman derivatives bearing an indole moiety in high yields and with moderate to good stereoselectivities.
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Affiliation(s)
- Shu-Fang Wu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Man-Su Tu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Qing-Qing Hang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Shu Zhang
- Department of Geriatrics
- the First Affiliated Hospital of Nanjing Medical University
- Nanjing
- 210029
- China
| | - Haixia Ding
- Department of Geriatrics
- the First Affiliated Hospital of Nanjing Medical University
- Nanjing
- 210029
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
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28
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Cativiela C, Ordóñez M, Viveros-Ceballos JL. Stereoselective synthesis of acyclic α,α-disubstituted α-amino acids derivatives from amino acids templates. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130875] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Ni Q, Wang X, Xu F, Chen X, Song X. Organocatalytic asymmetric [4+2] cyclization of 2-benzothiazolimines with azlactones: access to chiral benzothiazolopyrimidine derivatives. Chem Commun (Camb) 2020; 56:3155-3158. [DOI: 10.1039/d0cc00736f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A squaramide catalyzed regiospecific and stereoselective [4+2] cyclization of 2-benzothiazolimines with azlactones has been established.
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Affiliation(s)
- Qijian Ni
- College of Chemistry and Materials Science
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
| | - Xuyang Wang
- College of Chemistry and Materials Science
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
| | - Fangfang Xu
- College of Chemistry and Materials Science
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
| | - Xiaoyun Chen
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- P. R. China
| | - Xiaoxiao Song
- College of Chemistry and Materials Science
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
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30
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Lv D, Zhao M, Wang Y, Zhou Z. 3-Nitro-3,4-dihydrocoumarins: valuable precursors for the synthesis of enantiomerically enriched masked quaternary α-amino acid derivatives with a 3,4-dihydrocoumarin scaffold. Org Biomol Chem 2019; 17:9636-9645. [PMID: 31670332 DOI: 10.1039/c9ob02089f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A bifunctional squaramide catalyzed enantioselective formal [2 + 4] annulation reaction with 3-nitro-3,4-dihydrocoumarins and ortho-quinone methide has been developed. Novel chiral masked quaternary α-amino acid derivatives with a 3,4-dihydrocoumarin scaffold are obtained in a highly stereocontrolled manner. Representative transformation of the annulation product to a biologically important quaternary α-amino acid derivative is achieved without any appreciable loss in the diastereo- and enantioselectivity.
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Affiliation(s)
- Dan Lv
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Min Zhao
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Youming Wang
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Zhenghong Zhou
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
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31
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Zhang H, Liu G, Guan X, Gao J, Qin X, Jiang G, Sun D, Zhang G, Zhang S. Asymmetric Synthesis of Triaryl-Substituted Chromans with Multiple Stereogenic Centers by [4+2] Cycloaddition Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901286] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Heng Zhang
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Guofeng Liu
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Xukai Guan
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Jigang Gao
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Xiangshuo Qin
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Guofeng Jiang
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Dongyang Sun
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Guangliang Zhang
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
| | - Suoqin Zhang
- College of Chemistry; Jilin University; 2699 Qianjin Street 130012 Changchun People's Republic of China
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32
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Yu XY, Xiao WJ, Chen JR. Synthesis of Trisubstituted 1,2,4-Triazoles from Azlactones and Aryldiazonium Salts by a Cycloaddition/Decarboxylation Cascade. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901467] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiao-Ye Yu
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology; Ministry of Education, College of Chemistry; Central China Normal University; 152 Luoyu Road 430079 Wuhan Hubei China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology; Ministry of Education, College of Chemistry; Central China Normal University; 152 Luoyu Road 430079 Wuhan Hubei China
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology; Ministry of Education, College of Chemistry; Central China Normal University; 152 Luoyu Road 430079 Wuhan Hubei China
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33
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Saktura M, Joachim B, Grzelak P, Albrecht Ł. Aromatizative Inverse-Electron-Demand Hetero-Diels-Alder Reaction in the Synthesis of Benzothiophene Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900884] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Maciej Saktura
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Łódź Poland
| | - Bartłomiej Joachim
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Łódź Poland
| | - Paulina Grzelak
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Łódź Poland
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34
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Marra IFS, de Castro PP, Amarante GW. Recent Advances in Azlactone Transformations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901076] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Isabella F. S. Marra
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
| | - Pedro P. de Castro
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
| | - Giovanni W. Amarante
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
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35
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Zhao H, Ding W, Guo J, Wang L, Song X, Fan X, Tang Z, Wu H, Bi X. Formal [4+2] Cycloaddition of Vinyl Benzoxazinones with Oxazol‐5‐(4
H
)‐Ones for Diastereoselective Construction of 3,4‐Disubstituted Dihydro‐2(1
H
)‐Quinolinones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Hong‐Wu Zhao
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Wan‐Qiu Ding
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Jia‐Ming Guo
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Li‐Ru Wang
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Xiu‐Qing Song
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Xiao‐Zu Fan
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Zhe Tang
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Hui‐Hui Wu
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
| | - Xiao‐Fan Bi
- College of Life Science and Bio-engineering Beijing University of Technology Beijing 100124 People's Republic of China
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36
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An X, Xiao J. Fluorinated Alcohols: Magic Reaction Medium and Promoters for Organic Synthesis. CHEM REC 2019; 20:142-161. [DOI: 10.1002/tcr.201900020] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/07/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Xiao‐De An
- College of Chemistry and Pharmaceutical SciencesQingdao Agricultural University
| | - Jian Xiao
- College of Chemistry and Pharmaceutical SciencesQingdao Agricultural University
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37
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Ukis R, Schneider C. Brønsted Acid-Catalyzed, Diastereo- and Enantioselective, Intramolecular Oxa-Diels-Alder Reaction of ortho-Quinone Methides and Unactivated Dienophiles. J Org Chem 2019; 84:7175-7188. [PMID: 31117571 DOI: 10.1021/acs.joc.9b00860] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A stereoselective, phosphoric acid-catalyzed synthesis of dihydrochromenochromenes has been developed using transient ortho-quinone methides ( o-QMs). Three contiguous stereogenic centers were formed with excellent yields, partially as single diastereomers and with moderate to excellent enantioselectivity. This intramolecular hetero-Diels-Alder reaction features unactivated dienophiles and o-QM precursors tethered by a simple phenoxy linker and furnishes cycloadducts with a prominent structural motif found in many natural products. Through an appropriate choice of dienophile configuration and backbone substitution either exo- or endo-stereoisomers were formed selectively with up to a 96:04 enantiomeric ratio.
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Affiliation(s)
- Rostyslav Ukis
- Institute of Organic Chemistry , University of Leipzig , Johannisallee 29 , 04103 Leipzig , Germany
| | - Christoph Schneider
- Institute of Organic Chemistry , University of Leipzig , Johannisallee 29 , 04103 Leipzig , Germany
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38
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Lu B, Xin S, Zhu B, Chang J. Enantioselective Conjugate Addition‐Protonation of 5
H
‐Oxazol‐4‐ones and 5‐Methylene 1,3‐Oxazolidine‐2,4‐diones: 2,2'‐Biphenol‐Induced Diastereoselectivity Switch. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bohua Lu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Shuang Xin
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Bo Zhu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
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39
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Zhu B, Lu B, Zhang H, Xu X, Jiang Z, Chang J. Phase-Transfer-Catalyzed, Enantioselective Vinylogous Conjugate Addition–Cyclization of Olefinic Azlactones To Access Multifunctionalized Chiral Cyclohexenones. Org Lett 2019; 21:3271-3275. [DOI: 10.1021/acs.orglett.9b01001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Bo Zhu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Bohua Lu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Huifang Zhang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Xinyao Xu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Zhiyong Jiang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Jinming Campus, Kaifeng, Henan 475004, P.R. China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
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40
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Jensupakarn N, Gleeson MP, Gleeson D, Boonyarattanakalin K. Theoretical Investigation of the Enantioselective [4 + 2] Cycloaddition Reaction of o-Hydroxystyrene and Azlactone. J Org Chem 2019; 84:4025-4032. [DOI: 10.1021/acs.joc.9b00032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Napassorn Jensupakarn
- College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - M. Paul Gleeson
- Department of Biomedical Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Duangkamol Gleeson
- Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
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41
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Li Z, Wang W, Jian H, Li W, Dai B, He L. Synthesis of 9-phenol-substituted xanthenes by cascade O-insertion/1,6-conjugate addition of benzyne with ortho-hydroxyphenyl substituted para-quinone methides. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.04.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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42
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Wang Y, Chen Y, Li X, Mao Y, Chen W, Zhan R, Huang H. Enantioselective synthesis of pyrano[2,3-c]pyrrole via an organocatalytic [4 + 2] cyclization reaction of dioxopyrrolidines and azlactones. Org Biomol Chem 2019; 17:3945-3950. [DOI: 10.1039/c9ob00419j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present work provides a simple and efficient access to chiral pyrano[2,3-c]pyrrole via an asymmetric [4 + 2] cyclization reaction catalyzed by a cinchona-squaramide catalyst.
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Affiliation(s)
- Yichen Wang
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
| | - Yuzhen Chen
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
| | - Xiaoping Li
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
| | - Yukang Mao
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
| | - Weiwen Chen
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
| | - Ruoting Zhan
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
| | - Huicai Huang
- Research Center of Chinese Herbal Resource Science and Engineering
- Guangzhou University of Chinese Medicine; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine)
- Ministry of Education
- Guangzhou
- P. R. China
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43
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Liu X, Wang K, Guo W, Liu Y, Li C. An organic-base catalyzed asymmetric 1,4-addition of tritylthiol to in situ generated aza-o-quinone methides at the H2O/DCM interface. Chem Commun (Camb) 2019; 55:2668-2671. [DOI: 10.1039/c8cc09382b] [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
Highly enantioselective organocatalytic Michael addition of tritylthiol to N-o-QM intermediates generated in situ at the H2O/DCM interface is presented.
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Affiliation(s)
- Xianghui Liu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Kai Wang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Wengang Guo
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yan Liu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Can Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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44
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Wu Q, Li GL, Yang S, Shi XQ, Huang TZ, Du XH, Chen Y. A chemo- and regioselective C6-functionalization of 2,3-disubstituted indoles: highly efficient synthesis of diarylindol-6-ylmethanes. Org Biomol Chem 2019; 17:3462-3470. [DOI: 10.1039/c9ob00283a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An organocatalytic chemo- and regioselective C6-functionalization of 2,3-disubstituted indoles has been established via a reaction with ortho-hydroxybenzyl alcohols, which afforded biologically important diarylindol-6-ylmethanes in high yields.
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Affiliation(s)
- Qiong Wu
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
| | - Gui-Lin Li
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
| | - Shuang Yang
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
| | - Xiao-Qin Shi
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
| | - Tian-Zi Huang
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
| | - Xi-Hua Du
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
| | - Yan Chen
- School of Chemistry and Chemical Engineering
- Xuzhou University of Technology
- Xuzhou 221018
- China
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45
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Jakkampudi S, Parella R, Zhao JCG. Stereoselective synthesis of chromane derivatives via a domino reaction catalyzed by modularly designed organocatalysts. Org Biomol Chem 2018; 17:151-155. [PMID: 30525178 PMCID: PMC6317902 DOI: 10.1039/c8ob02677g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A highly enantio- and diastereoselective method for the synthesis of functionalized chroman-2-ones and chromanes was achieved by using an organocatalytic domino Michael/hemiacetalization reaction of aliphatic aldehydes and (E)-2-(2-nitrovinyl)phenols followed by a PCC oxidation and dehydroxylation, respectively. Using the modularly designed organocatalysts (MDOs) self-assembled from cinchona alkaloid derivatives and amino acids in the reaction media, the title products were obtained in good to high yields (up to 97%) and excellent diastereoselectivities (up to 99 : 1 dr) and enantioselectivities (up to 99% ee).
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Affiliation(s)
- Satish Jakkampudi
- Department of Chemistry, University of Texas at San Antonio One UTSA Circle, San Antonio, TX 78249-0698, USA.
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46
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Asymmetric intramolecular Friedel–Crafts reaction catalyzed by a spiropyrrolidine organocatalyst: Enantioselective construction of indolizine and azepine frameworks. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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47
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Shen YB, Li SS, Wang L, An XD, Liu Q, Liu X, Xiao J. Organocatalytic Dearomative [4 + 2] Cycloadditions of Biomass-Derived 2,5-Dimethylfuran with ortho-Quinone Methides: Access to Multisubstituted Chromanes. Org Lett 2018; 20:6069-6073. [PMID: 30212223 DOI: 10.1021/acs.orglett.8b02448] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The organocatalytic dearomative [4 + 2] cycloadditions of biomass-derived 2,5-dimethylfuran with ortho-quinone methides were developed, affording two diffferent types of multisubstituted chromanes in high yields and excellent diastereoselectivities. The controllable synthesis of these two types of multisubstituted chromanes could be achieved by succinctly varying the reaction conditions.
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Affiliation(s)
- Yao-Bin Shen
- 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
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , China
| | - Xiao-De An
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , China
| | - Qing Liu
- College of Chemical and Environmental Engineering , Shandong University of Science and Technology , Qingdao 266590 , China
| | - Xicheng Liu
- College of Chemistry and Chemical Engineering , Qufu Normal University , Qufu 273165 , China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , China
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48
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Jiang F, Luo GZ, Zhu ZQ, Wang CS, Mei GJ, Shi F. Application of Naphthylindole-Derived Phosphines as Organocatalysts in [4 + 1] Cyclizations of o-Quinone Methides with Morita–Baylis–Hillman Carbonates. J Org Chem 2018; 83:10060-10069. [DOI: 10.1021/acs.joc.8b01390] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fei Jiang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Gui-Zhen Luo
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zi-Qi Zhu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Cong-Shuai Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Guang-Jian Mei
- 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
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49
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Cayuelas A, Larrañaga O, Selva V, Nájera C, Akiyama T, Sansano JM, de Cózar A, Miranda JI, Cossío FP. Cooperative Catalysis with Coupled Chiral Induction in 1,3-Dipolar Cycloadditions of Azomethine Ylides. Chemistry 2018; 24:8092-8097. [DOI: 10.1002/chem.201801433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Alberto Cayuelas
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Olatz Larrañaga
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
| | - Verónica Selva
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Institute of Organic Synthesis; Universidad de Alicante; Spain
| | - Carmen Nájera
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science; Gakushuin University; 1-5-1 Mejiro Toshima-ku Tokyo, 171-8588 Japan
| | - José M. Sansano
- Departamento de Química Orgánica; Universidad de Alicante.; Ctra. Alicante-San Vicente s/n 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Institute of Organic Synthesis; Universidad de Alicante; Spain
| | - Abel de Cózar
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science; 48011 Bilbao Spain
| | | | - Fernando P. Cossío
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Departamento de Química Orgánica I, Facultad de Química; Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU; P. K. 1072 E-20018 San Sebastián Spain
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50
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Liao HH, Hsiao CC, Atodiresei I, Rueping M. Multiple Hydrogen-Bond Activation in Asymmetric Brønsted Acid Catalysis. Chemistry 2018; 24:7718-7723. [DOI: 10.1002/chem.201800677] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Hsuan-Hung Liao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Chien-Chi Hsiao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Iuliana Atodiresei
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Magnus Rueping
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- King Abdullah University of Science and Technology (KAUST); KAUST Catalysis Center (KCC); Thuwal 23955-69 00 Saudi Arabia
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