1
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Shikari A, Parida C, Chandra Pan S. Catalytic Asymmetric Dearomatization of 2,3-Disubstituted Indoles by a [4 + 2] Cycloaddition Reaction with In Situ Generated Vinylidene ortho-Quinone Methides: Access to Polycyclic Fused Indolines. Org Lett 2024; 26:5057-5062. [PMID: 38489515 DOI: 10.1021/acs.orglett.4c00557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
A protocol of enantioselective dearomatization of 2,3-disubstituted indoles by an organocatalytic intermolecular (4 + 2) cycloaddition reaction with in situ generated vinylidene ortho-quinone methide has been documented. A wide range of polycyclic 2,3-fused indolines containing vicinal quaternary carbon stereocenters was readily prepared in high yields and with excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Amit Shikari
- 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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2
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Gao H, Miao Y, Sun W, Zhao R, Xiao X, Hua Y, Jia S, Wang M, Mei G. Diversity-Oriented Catalytic Asymmetric Dearomatization of Indoles with o-Quinone Diimides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2305101. [PMID: 37870177 PMCID: PMC10724437 DOI: 10.1002/advs.202305101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/14/2023] [Indexed: 10/24/2023]
Abstract
Herein, the first diversity-oriented catalytic asymmetric dearomatization of indoles with o-quinone diimides (o-QDIs) is reported. The catalytic asymmetric dearomatization (CADA) of indoles is one of the research focuses in terms of the structural and biological importance of dearomatized indole derivatives. Although great achievements have been made in target-oriented CADA reactions, diversity-oriented CADA reactions are regarded as more challenging and remain elusive due to the lack of synthons featuring multiple reaction sites and the difficulty in precise control of chemo-, regio-, and enantio-selectivity. In this work, o-QDIs are employed as a versatile building block, enabling the chemo-divergent dearomative arylation and [4 + 2] cycloaddition reactions of indoles. Under the catalysis of chiral phosphoric acid and mild conditions, various indolenines, furoindolines/pyrroloindolines, and six-membered-ring fused indolines are collectively prepared in good yields with excellent enantioselectivities. This diversity-oriented synthesis protocol enriches the o-quinone chemistry and offers new opportunities for CADA reactions.
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Affiliation(s)
- Hao‐Jie Gao
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Yu‐Hang Miao
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Wen‐Na Sun
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Rui Zhao
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Xiao Xiao
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyHangzhou310014China
| | - Yuan‐Zhao Hua
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Shi‐Kun Jia
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Min‐Can Wang
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
| | - Guang‐Jian Mei
- College of ChemistryPingyuan LaboratoryZhengzhou UniversityZhengzhou450001China
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3
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Pandit S, Pandey VK, Adhikari AS, Kumar S, Maurya AK, Kant R, Majumdar N. Palladium-Catalyzed Dearomative [4 + 2]-Cycloaddition toward Hydrocarbazoles. J Org Chem 2023; 88:97-105. [PMID: 36484797 DOI: 10.1021/acs.joc.2c01869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient method for the construction of hydrocarbazoles bearing three continuous sterically hindered stereocenters, two quaternary and one tertiary, via a highly diastereoselective palladium-catalyzed [4 + 2]-cycloaddition/dearomatization of 3-nitroindoles has been developed. The cycloaddition of 3-nitroindoles occurs at ambient conditions with a 1,4-zwitterionic intermediate, in situ generated from γ-methylidene-δ-valerolactones. The further synthetic utility of this method is demonstrated by the multifaceted transformations possible from the products. The catalytic asymmetric aspect of this transformation has also been explored.
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Affiliation(s)
- Soumen Pandit
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India
| | - Vinay Kumar Pandey
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India
| | - Amit Singh Adhikari
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India
| | - Suresh Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Arvind Kumar Maurya
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Ruchir Kant
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India
| | - Nilanjana Majumdar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
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4
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Zhang ZX, Wang X, Jiang JT, Chen J, Zhu XQ, Ye LW. Brønsted acid-catalyzed asymmetric dearomatization of indolyl ynamides: practical and enantioselective synthesis of polycyclic indolines. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Xie F, Li X, Xu L, Ma J, Sun L, Zhang B, Lin B, Cheng M, Liu Y. Diels‐Alder Cycloaddition of Azepino[4,5‐b]indoles towards Hydrocarbazole Derivatives and Related Heterocycles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fukai Xie
- Shenyang Pharmaceutical University CHINA
| | - Xiang Li
- Shenyang Pharmaceutical University CHINA
| | - Liangyu Xu
- Shenyang Pharmaceutical University CHINA
| | - Jun Ma
- Shenyang Pharmaceutical University CHINA
| | - Lei Sun
- Shenyang Pharmaceutical University CHINA
| | - Bo Zhang
- Shenyang Pharmaceutical University CHINA
| | - Bin Lin
- Shenyang Pharmaceutical University CHINA
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6
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Ma J, Luo J, Jiang K, Zhang G, Liu S, Yin B. Access to Polycyclic Thienoindolines via Formal [2+2+1] Cyclization of Alkynyl Indoles with S 8 and K 2S. Org Lett 2021; 23:8033-8038. [PMID: 34617760 DOI: 10.1021/acs.orglett.1c03035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The syntheses of polycyclic thienoindolines bearing a dihydrothiophene or tetrahydrothiophene subunit have not been reported, despite the fact that such compounds may have interesting medicinal properties. Herein, we report a protocol for accessing polycyclic dihydrothiophenes by means of formal [2+2+1] intramolecular dearomatizing cyclization of alkynyl indoles with K2S and S8 as the sources of sulfide. In addition, tetrahydrothienoindolines were stereoselectively synthesized via a one-pot, two-step protocol involving AgNO3-catalyzed alkenyl dearomatization followed by two nucleophilic addition reactions involving K2S.
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Affiliation(s)
- Jinhui Ma
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
| | - Jiajun Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kai Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guangwen Zhang
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
| | - Shubin Liu
- Research Computing Center, The University of North Carolina, Chapel Hill, North Carolina 27599-3420, United States
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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7
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Yang G, Pan J, Ke Y, Liu Y, Zhao Y. Tandem Catalytic Indolization/Enantioconvergent Substitution of Alcohols by Borrowing Hydrogen to Access Tricyclic Indoles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Guoqiang Yang
- Department of Chemistry, National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Jiaoting Pan
- Department of Chemistry, National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Ya‐Ming Ke
- Department of Chemistry, National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Yongbing Liu
- Department of Chemistry, National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Yu Zhao
- Department of Chemistry, National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
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8
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Yang G, Pan J, Ke YM, Liu Y, Zhao Y. Tandem Catalytic Indolization/Enantioconvergent Substitution of Alcohols by Borrowing Hydrogen to Access Tricyclic Indoles. Angew Chem Int Ed Engl 2021; 60:20689-20694. [PMID: 34236747 DOI: 10.1002/anie.202106514] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/01/2021] [Indexed: 12/24/2022]
Abstract
An efficient tandem catalysis method is achieved for the direct conversion of alcohol-containing alkynyl anilines to valuable chiral 2,3-fused tricyclic indoles. This method relies on a tandem indolization followed by enantioconvergent substitution of alcohols via borrowing hydrogen to construct two rings in one step, enabled by relay and cooperative catalysis of a chiral iridium complex with a chiral phosphoric acid. Highly diastereoselective transformations of the tricyclic indole products also provide efficient access to a diverse array of complex polycyclic indoline compounds.
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Affiliation(s)
- Guoqiang Yang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Jiaoting Pan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Ya-Ming Ke
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yongbing Liu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yu Zhao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
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9
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Ma WY, Gelis C, Bouchet D, Retailleau P, Moreau X, Neuville L, Masson G. Chiral Phosphoric Acid-Catalyzed Enantioselective Construction of 2,3-Disubstituted Indolines. Org Lett 2021; 23:442-448. [DOI: 10.1021/acs.orglett.0c03947] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wei-Yang Ma
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, Gif-sur-Yvette 91198 Cedex France
| | - Coralie Gelis
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, Gif-sur-Yvette 91198 Cedex France
| | - Damien Bouchet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, Gif-sur-Yvette 91198 Cedex France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, Gif-sur-Yvette 91198 Cedex France
| | - Xavier Moreau
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, Université Paris-Saclay, Versailles, France
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, Gif-sur-Yvette 91198 Cedex France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, Gif-sur-Yvette 91198 Cedex France
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10
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Silica gel-promoted synthesis of multisubstituted spiroindolenines from tryptamines and γ-chloro-α,β-unsaturated ketones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Mohammadkhani L, Heravi MM. Applications of Transition-Metal-Catalyzed Asymmetric Allylic Substitution in Total Synthesis of Natural Products: An Update. CHEM REC 2020; 21:29-68. [PMID: 33206466 DOI: 10.1002/tcr.202000086] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 01/14/2023]
Abstract
Metal-catalyzed asymmetric allylic substitution (AAS) reaction is one of the most synthetically useful reactions catalyzed by metal complexes for the formation of carbon-carbon and carbon-heteroatom bonds. It comprises the substitution of allylic substrates with a wide range of nucleophiles or SN 2'-type allylic substitution, which results in the formation of the above-mentioned bonds with high levels of enantioselective induction. AAS reaction tolerates a broad range of functional groups, thus has been successfully applied in the asymmetric synthesis of a wide range of optically pure compounds. This reaction has been extensively used in the total synthesis of several complex molecules, especially natural products. In this review, we try to highlight the applications of metal (Pd, Ir, Mo, or Cu)-catalyzed AAS reaction in the total synthesis of the biologically active natural products, as a key step, updating the subject from 2003 till date.
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Affiliation(s)
- Leyla Mohammadkhani
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
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12
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Jia X, Lei H, Han F, Zhang T, Chen Y, Xu Z, Nakliang P, Choi S, Guo Y, Ye T. Asymmetric Total Syntheses of Kopsane Alkaloids via a PtCl 2 -Catalyzed Intramolecular [3+2] Cycloaddition. Angew Chem Int Ed Engl 2020; 59:12832-12836. [PMID: 32329945 DOI: 10.1002/anie.202005048] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Indexed: 12/19/2022]
Abstract
A concise and asymmetric total synthesis of five kopsane alkaloids that share a unique heptacyclic caged ring system was accomplished. The key transformation in the sequence involved a remarkable PtCl2 -catalyzed intramolecular [3+2] cycloaddition, which allowed for the rapid assembly of pentacyclic carbon skeletons bearing 2,3-quaternary functionalized indoline. Expeditious construction of diverse indoline scaffolds with excellent control of diastereoselectivity demonstrated the broad scope and versatility of this key transformation.
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Affiliation(s)
- Xuelei Jia
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Honghui Lei
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Feipeng Han
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Tao Zhang
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Ying Chen
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Zhengshuang Xu
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Pratanphorn Nakliang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Korea
| | - Sun Choi
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Korea
| | - Yian Guo
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
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13
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Jia X, Lei H, Han F, Zhang T, Chen Y, Xu Z, Nakliang P, Choi S, Guo Y, Ye T. Asymmetric Total Syntheses of Kopsane Alkaloids via a PtCl
2
‐Catalyzed Intramolecular [3+2] Cycloaddition. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xuelei Jia
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Honghui Lei
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Feipeng Han
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Tao Zhang
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Ying Chen
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Zhengshuang Xu
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Pratanphorn Nakliang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences Ewha Womans University Seoul 03760 Korea
| | - Sun Choi
- College of Pharmacy and Graduate School of Pharmaceutical Sciences Ewha Womans University Seoul 03760 Korea
| | - Yian Guo
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
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14
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Sheng FT, Wang JY, Tan W, Zhang YC, Shi F. Progresses in organocatalytic asymmetric dearomatization reactions of indole derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo01124j] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review summarizes the progresses in organocatalytic asymmetric dearomatization reactions of indole derivatives and their applications in total synthesis of natural products, and gives some insights into challenging issues in this research field.
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Affiliation(s)
- Feng-Tao Sheng
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Jing-Yi Wang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Wei Tan
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
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15
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Wei L, Shen C, Hu YZ, Tao HY, Wang CJ. Enantioselective synthesis of multi-nitrogen-containing heterocycles using azoalkenes as key intermediates. Chem Commun (Camb) 2019; 55:6672-6684. [PMID: 31134230 DOI: 10.1039/c9cc02371b] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chiral multi-nitrogen-containing heterocycles, such as pyrazole, imidazole and pyridazine, are widely found in naturally occurring organic compounds and pharmaceuticals, and hence, their stereoselective and efficient synthesis is an important issue in organic synthesis. Out of the variety of methods that have been developed over the past century, the catalytic asymmetric cyclization and cycloaddition reactions are recognized as the most synthetically useful strategies due to their step-, atom- and redox-economic nature. In particular, the recently developed annulation reactions using azoalkenes as key intermediates show their great ability to construct diverse types of multi-nitrogen-containing heterocycles. In this feature article, we critically analyse the strategic development and the efficient transformation of azoalkenes to chiral heterocycles and α-functionalized ketone derivatives since 2010. The plausible mechanism for each reaction model is also discussed.
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Affiliation(s)
- Liang Wei
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
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16
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Yang J, Ke C, Zhang D, Liu X, Feng X. Enantioselective Synthesis of 2,2,3-Trisubstituted Indolines via Bimetallic Relay Catalysis of α-Diazoketones with Enones. Org Lett 2018; 20:4536-4539. [DOI: 10.1021/acs.orglett.8b01744] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Chaoqi Ke
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Dong Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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17
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Gao RD, Ding L, Zheng C, Dai LX, You SL. Palladium(0)-Catalyzed Intermolecular Asymmetric Allylic Dearomatization of Polycyclic Indoles. Org Lett 2018; 20:748-751. [PMID: 29368933 DOI: 10.1021/acs.orglett.7b03887] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An intermolecular Pd-catalyzed allylic dearomatization reaction of polycyclic indoles with substituted allylic carbonates was realized in the presence of a newly synthesized chiral phosphoramidite ligand. Various polycyclic indoline and indolenine derivatives were successfully synthesized in excellent yields (up to 99%) with excellent enantioselectivity (up to 98% ee). The obtained products could undergo versatile transformations, increasing the application potential of the method in organic synthesis.
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Affiliation(s)
- Run-Duo Gao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Lu Ding
- School of Physical Science and Technology, ShanghaiTech University , 100 Haike Road, Shanghai 201210, China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China.,School of Physical Science and Technology, ShanghaiTech University , 100 Haike Road, Shanghai 201210, China
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18
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Yu L, Zhong Y, Yu J, Gan L, Cai Z, Wang R, Jiang X. Highly diastereoselective oxa-[3+3] cyclization with C,N-cyclic azomethine imines via the copper-catalyzed aerobic oxygenated CC bond of indoles. Chem Commun (Camb) 2018; 54:2353-2356. [DOI: 10.1039/c7cc09640b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a copper-catalyzed highly diastereoselective aerobic oxygenated [3+3] cyclization of 3-substituted indoles with C,N-cyclic azomethine imines using oxygen as the sole oxidant under mild conditions has been developed.
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Affiliation(s)
- Lemao Yu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Yuan Zhong
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
| | - Jicong Yu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Lu Gan
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Zhengjun Cai
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
- China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
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19
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Liu S, Zhang W, Qu J, Wang B. Engaging 2-methyl indolenines in a tandem condensation/1,5-hydride transfer/cyclization process: construction of a novel indolenine–tetrahydroquinoline assembly. Org Chem Front 2018. [DOI: 10.1039/c8qo00875b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient BF3·Et2O-catalyzed diastereoselective tandem condensation/1,5-hydride transfer/cyclization strategy for the synthesis of a novel indolenine–tetrahydroquinoline assembly was reported.
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Affiliation(s)
- Siyuan Liu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
| | - Wenzhu Zhang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
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20
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Beppu S, Arae S, Furusawa M, Arita K, Fujimoto H, Sumimoto M, Imahori T, Igawa K, Tomooka K, Irie R. Stereoselective Intramolecular Dearomatizative [4+2] Cycloaddition of Linked Ethynylnaphthol-Benzofuran Systems. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701481] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shota Beppu
- Department of Chemistry; Faculty of Advanced Science and Technology; Kumamoto University; 2-39-1 Kurokami, Chuo-ku 860-8555 Kumamoto Japan
| | - Sachie Arae
- Department of Chemistry; Faculty of Advanced Science and Technology; Kumamoto University; 2-39-1 Kurokami, Chuo-ku 860-8555 Kumamoto Japan
| | - Masaki Furusawa
- Department of Chemistry; Faculty of Advanced Science and Technology; Kumamoto University; 2-39-1 Kurokami, Chuo-ku 860-8555 Kumamoto Japan
| | - Kosuke Arita
- Department of Chemistry; Faculty of Advanced Science and Technology; Kumamoto University; 2-39-1 Kurokami, Chuo-ku 860-8555 Kumamoto Japan
| | - Hitoshi Fujimoto
- Department of Chemistry; Faculty of Advanced Science and Technology; Kumamoto University; 2-39-1 Kurokami, Chuo-ku 860-8555 Kumamoto Japan
| | - Michinori Sumimoto
- Graduate School of Science and Technology for Innovation; Yamaguchi University; 2-16-1 Tokiwadai 755-8611 Ube Yamaguchi Japan
| | - Tatsushi Imahori
- Department of Industrial Chemistry; Faculty of Engineering; Tokyo University of Science; 1-3 Kagurazaka 162-8601 Shinjyuku-ku Tokyo Japan
| | - Kazunobu Igawa
- Institute for Materials Chemistry and Engineering; Kyushu University; 6-1 Kasuga-koen 816-8580 Kasuga Fukuoka Japan
| | - Katsuhiko Tomooka
- Institute for Materials Chemistry and Engineering; Kyushu University; 6-1 Kasuga-koen 816-8580 Kasuga Fukuoka Japan
| | - Ryo Irie
- Department of Chemistry; Faculty of Advanced Science and Technology; Kumamoto University; 2-39-1 Kurokami, Chuo-ku 860-8555 Kumamoto Japan
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21
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Shao W, You SL. Highly Diastereo- and Enantioselective Synthesis of Tetrahydro-5H
-Indolo[2,3-b
]quinolines through Copper-Catalyzed Propargylic Dearomatization of Indoles. Chemistry 2017; 23:12489-12493. [DOI: 10.1002/chem.201703443] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Wen Shao
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 China
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22
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Xu D, Zhao Y, Song D, Zhong Z, Feng S, Xie X, Wang X, She X. (3 + 2)-Annulation of p-Quinamine and Aryne: A Strategy To Construct the Multisubstituted Hydrocarbazoles. Org Lett 2017; 19:3600-3603. [DOI: 10.1021/acs.orglett.7b01578] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Dengyu Xu
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Yulong Zhao
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Dengpeng Song
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Zhuliang Zhong
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Shangbiao Feng
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Xingang Xie
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Xiaolei Wang
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Xuegong She
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People’s Republic of China
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23
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Luo M, Chen J, Yu L, Wei W. Concise Synthesis of Polycyclic Indoline Scaffolds through an InIII
-Catalyzed Formal [4+2] Annulation of 2,3-Disubstituted Indoles with o
-Aminobenzyl Alcohols. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700432] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mupeng Luo
- Shanghai Advanced Research Institute; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 99 Haike Road 201210 Shanghai P. R. China
- School of Life Science and Technology; ShanghaiTech University; 100 Haike Road 201210 Shanghai P. R. China
| | - Jianxin Chen
- Shanghai Advanced Research Institute; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 99 Haike Road 201210 Shanghai P. R. China
- School of Life Science and Technology; ShanghaiTech University; 100 Haike Road 201210 Shanghai P. R. China
| | - Linqian Yu
- School of Pharmarcy; Fudan University; 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong 201203 Shanghai P. R. China
| | - Wanguo Wei
- Shanghai Advanced Research Institute; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 99 Haike Road 201210 Shanghai P. R. China
- School of Life Science and Technology; ShanghaiTech University; 100 Haike Road 201210 Shanghai P. R. China
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24
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Chen H, Wang L, Wang F, Zhao LP, Wang P, Tang Y. Access to Hexahydrocarbazoles: The Thorpe-Ingold Effects of the Ligand on Enantioselectivity. Angew Chem Int Ed Engl 2017; 56:6942-6945. [DOI: 10.1002/anie.201700042] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 03/20/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Hao Chen
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Lijia Wang
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Feng Wang
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Liu-Peng Zhao
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Pan Wang
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Yong Tang
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); China
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25
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Access to Hexahydrocarbazoles: The Thorpe-Ingold Effects of the Ligand on Enantioselectivity. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Liu C, Yi JC, Dai LX, You SL. Copper(I)-Catalyzed Cascade Dearomatization of Tryptophols with 3-Indolylphenyliodonium Salts. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600626] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chuan Liu
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Ji-Cheng Yi
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
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27
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Zhou Y, Xia ZL, Gu Q, You SL. Chiral Phosphoric Acid Catalyzed Intramolecular Dearomative Michael Addition of Indoles to Enones. Org Lett 2017; 19:762-765. [PMID: 28145710 DOI: 10.1021/acs.orglett.6b03610] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An enantioselective intramolecular dearomative Michael addition of indolyl enones is presented. In the presence of catalytic amount of chiral phosphoric acid, various enantioenriched spiro-indolenines bearing a quaternary stereogenic center were obtained with good yields and enantioselectivity (up to 97% ee) under mild reaction conditions.
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Affiliation(s)
- Yong Zhou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Zi-Lei Xia
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
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28
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Lin C, Du HJ, Zhao H, Yan DF, Liu NX, Sun H, Wen X, Xu QL. A formal intermolecular [4 + 2] cycloaddition reaction of 1,3-disubstituted indoles and alkylquinones. Org Biomol Chem 2017; 15:3472-3478. [DOI: 10.1039/c7ob00392g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A formal [4 + 2] cycloaddition reaction of 1,3-disubstituted indoles and alkylquinones was realized to afford polycyclic indolines in good yields.
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Affiliation(s)
- Chao Lin
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hong-Jin Du
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hui Zhao
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Ding-Fei Yan
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Nai-Xin Liu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
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29
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Lagoutte R, Besnard C, Alexakis A. Direct Organocatalysed Double Michael Addition of α-Angelica Lactone to Enones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600707] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Roman Lagoutte
- Department of Organic Chemistry; University of Geneva; Quai Ernest-Ansermet 30 1211 Geneva Switzerland
| | - Céline Besnard
- Department of Organic Chemistry; University of Geneva; Quai Ernest-Ansermet 30 1211 Geneva Switzerland
| | - Alexandre Alexakis
- Department of Organic Chemistry; University of Geneva; Quai Ernest-Ansermet 30 1211 Geneva Switzerland
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30
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Gao RD, Xu QL, Zhang B, Gu Y, Dai LX, You SL. Palladium(0)-Catalyzed Intermolecular Allylic Dearomatization of Indoles by a Formal [4+2] Cycloaddition Reaction. Chemistry 2016; 22:11601-4. [PMID: 27321285 DOI: 10.1002/chem.201602691] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Indexed: 02/02/2023]
Abstract
Bridged indoline derivatives were synthesized by an intermolecular Pd-catalyzed allylic dearomatization reaction of substituted indoles. The reaction between indoles and allyl carbonates bearing a nucleophilic alcohol side-chain proceeds in a cascade fashion, providing bridged indolines in excellent enantioselectivity.
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Affiliation(s)
- Run-Duo Gao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China
| | - Qing-Long Xu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China
| | - Bo Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China
| | - Yiting Gu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, P. R. China.
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31
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Liu C, Yi JC, Liang XW, Xu RQ, Dai LX, You SL. Copper(I)-Catalyzed Asymmetric Dearomatization of Indole Acetamides with 3-Indolylphenyliodonium Salts. Chemistry 2016; 22:10813-6. [DOI: 10.1002/chem.201602229] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Chuan Liu
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Ji-Cheng Yi
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Xiao-Wei Liang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Ren-Qi Xu
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
- Collaborative Innovation Centre of Chemical Science and Engineering; Tianjin 300072 P. R. China
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32
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Yadagiri D, Reddy ACS, Anbarasan P. Rhodium catalyzed diastereoselective synthesis of 2,2,3,3-tetrasubstituted indolines from N-sulfonyl-1,2,3-triazoles and ortho-vinylanilines. Chem Sci 2016; 7:5934-5938. [PMID: 30034735 PMCID: PMC6024588 DOI: 10.1039/c6sc01075j] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 05/19/2016] [Indexed: 12/05/2022] Open
Abstract
An efficient diastereoselective rhodium catalyzed synthesis of indolines possessing two contiguous tetrasubstituted carbon centers has been achieved with good to excellent yields using ortho-vinylanilines and iminocarbenes derived from N-sulfonyl-1,2,3-triazoles.
An efficient diastereoselective rhodium catalyzed synthesis of indolines possessing two contiguous tetrasubstituted carbon centers has been achieved with good to excellent yields using ortho-vinylanilines and iminocarbenes derived from N-sulfonyl-1,2,3-triazoles. The reaction affords excellent cis-diastereoselectivity through the initial formation of a N-ylide followed by intramolecular trapping with unactivated alkenes via an ene-type reaction with a well-organized transition state, namely intramolecular carbenylative amination of alkenes. The developed transformation was further extended to the successful synthesis of tricyclic compounds, imidazoindolines, through reduction and hypervalent iodine mediated oxidative cyclization.
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Affiliation(s)
- Dongari Yadagiri
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India . ; http://chem.iitm.ac.in/faculty/anbarasan/profanbu/
| | - Angula Chandra Shekar Reddy
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India . ; http://chem.iitm.ac.in/faculty/anbarasan/profanbu/
| | - Pazhamalai Anbarasan
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India . ; http://chem.iitm.ac.in/faculty/anbarasan/profanbu/
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33
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Huang R, Chang X, Li J, Wang CJ. Cu(I)-Catalyzed Asymmetric Multicomponent Cascade Inverse Electron-Demand Aza-Diels–Alder/Nucleophilic Addition/Ring-Opening Reaction Involving 2-Methoxyfurans as Efficient Dienophiles. J Am Chem Soc 2016; 138:3998-4001. [DOI: 10.1021/jacs.6b01008] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Rong Huang
- College
of Chemistry and Molecular Sciences, Wuhan University, Hubei, China 430072
| | - Xin Chang
- College
of Chemistry and Molecular Sciences, Wuhan University, Hubei, China 430072
| | - Jun Li
- College
of Chemistry and Molecular Sciences, Wuhan University, Hubei, China 430072
| | - Chun-Jiang Wang
- College
of Chemistry and Molecular Sciences, Wuhan University, Hubei, China 430072
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, China 300071
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34
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Han G, Wang Q, Chen L, Liu Y, Wang Q. Copper-Catalyzed Trifluoromethylation of Acrylamides Coupled with Indole Dearomatization: Access to Trifluoromethyl-Substituted Spiro[indole-3,3′-pyrrolidine] Derivatives. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500988] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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35
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Saito K, Akiyama T. Chiral Phosphoric Acid Catalyzed Kinetic Resolution of Indolines Based on a Self-Redox Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510692] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kodai Saito
- Department of Chemistry; Gakushuin University; 1-5-1 Mejiro, Toshima-ku Tokyo 171-8588 Japan
- Department of Chemistry; Keio University, Hiyoshi, Kohoku-ku; Yokohama Kanagawa 223-8522 Japan
| | - Takahiko Akiyama
- Department of Chemistry; Gakushuin University; 1-5-1 Mejiro, Toshima-ku Tokyo 171-8588 Japan
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36
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Saito K, Akiyama T. Chiral Phosphoric Acid Catalyzed Kinetic Resolution of Indolines Based on a Self-Redox Reaction. Angew Chem Int Ed Engl 2016; 55:3148-52. [PMID: 26822188 DOI: 10.1002/anie.201510692] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 11/12/2022]
Abstract
A strategy for oxidative kinetic resolution of racemic indolines was developed, employing salicylaldehyde derivative as the pre-resolving reagent and chiral phosphoric acid as the catalyst. The iminium intermediate, formed by the condensation reaction of an enantiomer of indoline with salicylaldehyde derivative, was hydrogenated by the same enantiomer of indoline to afford another enantiomer of indoline by a self-redox mechanism. The oxidative kinetic resolution of 2-aryl-substituted indolines proceeded to give enantiomers in good yields with excellent enantioselectivities.
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Affiliation(s)
- Kodai Saito
- Department of Chemistry, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 171-8588, Japan.,Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
| | - Takahiko Akiyama
- Department of Chemistry, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 171-8588, Japan.
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37
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Giardinetti M, Moreau X, Coeffard V, Greck C. Aminocatalyzed Cascade Synthesis of Enantioenriched 1,7-Annulated Indoles from Indole-7-Carbaldehyde Derivatives and α,β-Unsaturated Aldehydes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500629] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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38
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Ocello R, De Nisi A, Jia M, Yang QQ, Monari M, Giacinto P, Bottoni A, Miscione GP, Bandini M. Gold(I)-Catalyzed Dearomative [2+2]-Cycloaddition of Indoles with Activated Allenes: A Combined Experimental-Computational Study. Chemistry 2015; 21:18445-53. [DOI: 10.1002/chem.201503598] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 12/27/2022]
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39
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Fei J, Qian Q, Sun X, Gu X, Zou C, Ye J. Organocatalytic Enantioselective Formal [4 + 2] Cycloaddition of Enones with Cyclic N-Sulfonylimines and Methylene Chromene for Chiral Spirocyclic Compounds. Org Lett 2015; 17:5296-9. [DOI: 10.1021/acs.orglett.5b02667] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jie Fei
- Engineering
Research Center of Pharmaceutical Process Chemistry, Ministry of Education,
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qingqing Qian
- Engineering
Research Center of Pharmaceutical Process Chemistry, Ministry of Education,
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaohua Sun
- Engineering
Research Center of Pharmaceutical Process Chemistry, Ministry of Education,
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaodong Gu
- Engineering
Research Center of Pharmaceutical Process Chemistry, Ministry of Education,
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chuncheng Zou
- Engineering
Research Center of Pharmaceutical Process Chemistry, Ministry of Education,
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jinxing Ye
- Engineering
Research Center of Pharmaceutical Process Chemistry, Ministry of Education,
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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40
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Jia M, Monari M, Yang QQ, Bandini M. Enantioselective gold catalyzed dearomative [2+2]-cycloaddition between indoles and allenamides. Chem Commun (Camb) 2015; 51:2320-3. [PMID: 25562811 DOI: 10.1039/c4cc08736d] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The highly enantioselective synthesis of densely functionalized 2,3-indoline-cyclobutanes by means of chiral gold catalysis is presented. Intermolecular formal [2+2]-cycloaddition reactions between substituted indoles and allenamides enabled direct access to methylenecyclobutane-fused indolines, featuring two consecutive quaternary stereogenic centers with excellent stereochemical control (dr > 20 : 1, ee up to 99%).
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Affiliation(s)
- Minqiang Jia
- Department of Chemistry "G. Ciamician" Alma Mater Studiorum-University of Bologna via Selmi 2, 40126, Bologna, Italy.
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41
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Yu Y, Li G, Jiang L, Zu L. An Indoxyl-Based Strategy for the Synthesis of Indolines and Indolenines. Angew Chem Int Ed Engl 2015; 54:12627-31. [DOI: 10.1002/anie.201505173] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Indexed: 11/07/2022]
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42
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Yu Y, Li G, Jiang L, Zu L. An Indoxyl-Based Strategy for the Synthesis of Indolines and Indolenines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505173] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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43
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Wan J, Zhao Z, Wang F, Ma X. An Acid/Base-Regulated Recyclable Strategy for Homogeneous Cinchona Alkaloid-Derived Primary Amine Organocatalysts in Aldol, Vinylogous Michael and Double-Michael Cascade Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500566] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Zhao D, Zhang J, Xie Z. Dearomative [2 + 2] Cycloaddition and Formal C–H Insertion Reaction of o-Carboryne with Indoles: Synthesis of Carborane-Functionalized Heterocycles. J Am Chem Soc 2015; 137:9423-8. [DOI: 10.1021/jacs.5b05426] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Da Zhao
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Jiji Zhang
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Zuowei Xie
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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45
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Wang Y, Zhang P, Liu Y, Xia F, Zhang J. Enantioselective gold-catalyzed intermolecular [2+2] versus [4+2]-cycloadditions of 3-styrylindoles with N-allenamides: observation of interesting substituent effects. Chem Sci 2015; 6:5564-5570. [PMID: 29861893 PMCID: PMC5949851 DOI: 10.1039/c5sc01827g] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 06/22/2015] [Indexed: 01/02/2023] Open
Abstract
The cycloaddition mode ([2+2] vs. [4+2]) can be unexpectedly switched by the simple modification of the N-substituent of the 3-styrylindoles.
A highly enantioselective [2+2] versus a [4+2]-cycloaddition of 3-styrylindoles to N-allenamides catalyzed by identical gold(i)/chiral phosphoramidite complexes is presented, which provides facile access to synthetically valuable, optically active substituted cyclobutanes and tetrahydrocarbazoles. The cycloaddition mode unexpectedly depends on the electronic nature of the N-substituent 3-styrylindoles, the origin of which could be well rationalized using DFT calculations and experimental results. To the best of our knowledge, the present work represents the first example of such an impressive substituent effect in tuning the reaction mode with high chemo-, regio- and enantioselectivity in asymmetric gold catalysis.
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Affiliation(s)
- Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , China . ;
| | - Peichao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , China . ;
| | - Yuan Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , China . ;
| | - Fei Xia
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , China . ;
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , China . ; .,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , CAS , 345 Lingling Road , Shanghai 200032 , China
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46
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Du JY, Zeng C, Han XJ, Qu H, Zhao XH, An XT, Fan CA. Asymmetric Total Synthesis of Apocynaceae Hydrocarbazole Alkaloids (+)-Deethylibophyllidine and (+)-Limaspermidine. J Am Chem Soc 2015; 137:4267-73. [DOI: 10.1021/jacs.5b01926] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ji-Yuan Du
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Chao Zeng
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xiao-Jie Han
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Hu Qu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xian-He Zhao
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xian-Tao An
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Chun-An Fan
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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47
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Zhao X, Liu X, Mei H, Guo J, Lin L, Feng X. Asymmetric Dearomatization of Indoles through a Michael/Friedel-Crafts-Type Cascade To Construct Polycyclic Spiroindolines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410814] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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48
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Zhao X, Liu X, Mei H, Guo J, Lin L, Feng X. Asymmetric Dearomatization of Indoles through a Michael/Friedel-Crafts-Type Cascade To Construct Polycyclic Spiroindolines. Angew Chem Int Ed Engl 2015; 54:4032-5. [DOI: 10.1002/anie.201410814] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/22/2015] [Indexed: 01/15/2023]
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49
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Zhao X, Liu X, Xiong Q, Mei H, Ma B, Lin L, Feng X. The asymmetric synthesis of polycyclic 3-spirooxindole alkaloids via the cascade reaction of 2-isocyanoethylindoles. Chem Commun (Camb) 2015; 51:16076-9. [DOI: 10.1039/c5cc06353a] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A highly enantioselective dearomative cascade between 2-isocyanoethylindole and 3-alkenyl-oxindoles was realized by chiral N,N′-dioxide-Mg(ii) complexes. Various spiroindolines with spiro-oxindoles were obtained in excellent results.
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Affiliation(s)
- Xiaohu Zhao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Qian Xiong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Hongjiang Mei
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Baiwei Ma
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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50
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Li H, Wang Z, Zu L. [3 + 2] Annulations between indoles and α,β-unsaturated ketones: access to pyrrolo[1,2-a]indoles and model reactions toward the originally assigned structure of yuremamine. RSC Adv 2015. [DOI: 10.1039/c5ra11904a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The efficient assembly of densely substituted, highly functionalized pyrrolo[1,2-a]indoles by the direct annulation of indoles and α,β-unsaturated ketones is reported.
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Affiliation(s)
- Haokun Li
- Department of Pharmacology and Pharmaceutical Sciences
- School of Medicine
- Tsinghua University
- Beijing
- China
| | - Zhonglei Wang
- Department of Pharmacology and Pharmaceutical Sciences
- School of Medicine
- Tsinghua University
- Beijing
- China
| | - Liansuo Zu
- Department of Pharmacology and Pharmaceutical Sciences
- School of Medicine
- Tsinghua University
- Beijing
- China
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