1
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Selaković Ž, Nikolić AM, Ajdačić V, Opsenica IM. Application of Transition Metal‐Catalyzed Decarbonylation of Aldehydes in the Total Synthesis of Natural Products. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Života Selaković
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
| | - Andrea M. Nikolić
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
| | - Vladimir Ajdačić
- Innovative Centre Faculty of Chemistry, Ltd. Studentski trg 12–16 11158 Belgrade Serbia
| | - Igor M. Opsenica
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
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2
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Hajra S, Roy S, Mondal AS. Co(III)salen Catalyzed Enantioselective C3‐Indolylation of Spiro‐Epoxyoxindoles and Its Mechanistic Studies. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000811] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Saumen Hajra
- Center of Biomedical Research Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus Raebareli Road Lucknow 226014 India
| | - Sayan Roy
- Center of Biomedical Research Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus Raebareli Road Lucknow 226014 India
| | - Ananda Shankar Mondal
- Center of Biomedical Research Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus Raebareli Road Lucknow 226014 India
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3
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Liu Q, Wang R, Song H, Liu Y, Wang Q. Synthesis of 1,4‐Dicarbonyl Compounds by Visible‐Light‐Mediated Cross‐Coupling Reactions of α‐Chlorocarbonyls and Enol Acetates. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000791] [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)
- Qiang Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Rui‐Guo Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Hong‐Jian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Yu‐Xiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Qing‐Min Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 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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4
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Pound SM, Underwood SJ, Douglas CJ. Studies towards the total synthesis of drimentine C. Preparation of the AB and CDEF ring fragments. European J Org Chem 2020; 2020:2448-2453. [PMID: 33071626 DOI: 10.1002/ejoc.202000158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The drimentine family is a class of hybrid isoprenoids derived from actinomycete bacteria. Members of this family display weak antitumor and antibacterial activity. Herein we report our efforts toward the total synthesis of drimentine C using three distinct approaches incorporating palladium-catalyzed cyanoamidation, reductive cross-coupling, and photoredox-catalyzed α-alkylation of an aldehyde as key steps. Our synthetic efforts use a convergent synthesis to assemble the terpenoid and alkaloid portions of drimentine C from readily available l-tryptophan, l-proline, and (+)-sclareolide.
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Affiliation(s)
- Sarah M Pound
- Department of Chemistry, University of Minnesota - Twin Cities, Smith Hall, 207 Pleasant St SE, Minneapolis, MN 55455
| | - Steven J Underwood
- Department of Chemistry, University of Minnesota - Twin Cities, Smith Hall, 207 Pleasant St SE, Minneapolis, MN 55455
| | - Christopher J Douglas
- Department of Chemistry, University of Minnesota - Twin Cities, Smith Hall, 207 Pleasant St SE, Minneapolis, MN 55455
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5
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Evano G, Theunissen C. Beyond Friedel and Crafts: Innate Alkylation of C−H Bonds in Arenes. Angew Chem Int Ed Engl 2019; 58:7558-7598. [DOI: 10.1002/anie.201806631] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brussels Belgium
| | - Cédric Theunissen
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brussels Belgium
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6
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Richter SC, Oestreich M. Bioinspired Metal‐Free Formal Decarbonylation of α‐Branched Aliphatic Aldehydes at Ambient Temperature. Chemistry 2019; 25:8508-8512. [DOI: 10.1002/chem.201902082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Sven C. Richter
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
| | - Martin Oestreich
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
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7
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8
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Evano G, Theunissen C. Jenseits von Friedel und Crafts: immanente Alkylierung von C‐H‐Bindungen in Arenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201806631] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F. D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
| | - Cédric Theunissen
- Laboratoire de Chimie Organique, Service de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F. D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
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9
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Xu J, Liu N, Zou L, Cheng F, Shen X, Liu T, Lv H, Khan R, Fan B. Visible-Light Driven Hydrolysis of Benzyl Halides with Water for Preparation of Benzyl Alcohols. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800658] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jianbin Xu
- Yunnan Guizhou Plateau Chemical Functional Materials Pollution Control Research Center; Qujing Normal University; Qujing 655011 China
| | - Na Liu
- Yunnan Guizhou Plateau Chemical Functional Materials Pollution Control Research Center; Qujing Normal University; Qujing 655011 China
| | - Lingling Zou
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine/Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; Kunming 650500 China
| | - Feixiang Cheng
- Yunnan Guizhou Plateau Chemical Functional Materials Pollution Control Research Center; Qujing Normal University; Qujing 655011 China
| | - Xianfu Shen
- Yunnan Guizhou Plateau Chemical Functional Materials Pollution Control Research Center; Qujing Normal University; Qujing 655011 China
| | - Teng Liu
- Yunnan Guizhou Plateau Chemical Functional Materials Pollution Control Research Center; Qujing Normal University; Qujing 655011 China
| | - Haiping Lv
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine/Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; Kunming 650500 China
| | - Ruhima Khan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine/Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; Kunming 650500 China
| | - Baomin Fan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine/Key Laboratory of Chemistry in Ethnic Medicinal Resources; Yunnan Minzu University; Kunming 650500 China
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10
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Lin Y, Ye J, Zhang W, Gao Y, Chen H. Catalytic Oxidative Coupling Cyclization for Construction of Benzofuroindolenines under Mild Reaction Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801184] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yuqi Lin
- College of ChemistryFuzhou University, Fuzhou Fujian 350116 People's Republic of China
| | - Jinxiang Ye
- College of ChemistryFuzhou University, Fuzhou Fujian 350116 People's Republic of China
| | - Wenting Zhang
- College of ChemistryFuzhou University, Fuzhou Fujian 350116 People's Republic of China
| | - Yu Gao
- College of ChemistryFuzhou University, Fuzhou Fujian 350116 People's Republic of China
| | - Haijun Chen
- College of ChemistryFuzhou University, Fuzhou Fujian 350116 People's Republic of China
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11
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Revathi L, Ravindar L, Fang WY, Rakesh KP, Qin HL. Visible Light-Induced C−H Bond Functionalization: A Critical Review. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800736] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lekkala Revathi
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - Lekkala Ravindar
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - Wan-Yin Fang
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - K. P. Rakesh
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - Hua-Li Qin
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
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12
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Liu J, Li L, Yu L, Tang L, Chen Q, Shi M. Visible-Light-Induced Trifluoromethylation of Isonitrile-Substituted Indole Derivatives: Access to 1-(Trifluoromethyl)-4,9-dihydro-3H-pyrido[3,4-b]indole andβ-Carboline Derivatives. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800568] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jiaxin Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Longhai Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Liuzhu Yu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Lisha Tang
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry; Fudan University; 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Qin Chen
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry; Fudan University; 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
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13
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Liu G, Zhang H, Guan X, Gao J, Qin X, Zhang G, Zhang S. Metal-free hydrogen transfer reduction of 3-hydroxy-3-indolyloxindoles: a novel method for the synthesis of 3,3′-biindolin-2-ones. NEW J CHEM 2018. [DOI: 10.1039/c8nj01621f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A new approach for the synthesis of 3,3′-biindolin-2-ones has been successfully performed with high yield following a one-step strategy starting from 3-hydroxy-3-indolyloxindoles.
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Affiliation(s)
- Guofeng Liu
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Heng Zhang
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xukai Guan
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Jigang Gao
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xiangshuo Qin
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Guangliang Zhang
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Suoqin Zhang
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
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14
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Boubertakh O, Goddard JP. Construction and Functionalization of Heteroarenes by Use of Photoredox Catalysis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601653] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Oualid Boubertakh
- Laboratoire de Chimie Organique et Bioorganique EA 4566; Université de Haute-Alsace; 3 bis rue Alfred Werner 68093 Mulhouse Cedex France
| | - Jean-Philippe Goddard
- Laboratoire de Chimie Organique et Bioorganique EA 4566; Université de Haute-Alsace; 3 bis rue Alfred Werner 68093 Mulhouse Cedex France
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15
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Alpers D, Brasholz M, Rehbein J. Photoredox-Induced Radical 6-exo
-trig
Cyclizations onto the Indole Nucleus: Aromative versus Dearomative Pathways. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700150] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dirk Alpers
- Institute of Organic Chemistry; Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Malte Brasholz
- Institute of Organic Chemistry; Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Julia Rehbein
- Institute of Organic Chemistry; Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
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16
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Alpers D, Gallhof M, Witt J, Hoffmann F, Brasholz M. Photoredox‐induzierte stereoselektive desaromatisierende radikalische (4+2)‐Cyclisierungs/1,4‐Additions‐Kaskade zur Synthese hoch funktionalisierter Hexahydro‐1
H
‐carbazole. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610974] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Dirk Alpers
- Fachbereich Chemie – Institut für Organische Chemie Universität Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Deutschland
| | - Malte Gallhof
- Fachbereich Chemie – Institut für Organische Chemie Universität Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Deutschland
| | - Julian Witt
- Fachbereich Chemie – Institut für Organische Chemie Universität Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Deutschland
| | - Frank Hoffmann
- Fachbereich Chemie – Institut für Anorganische Chemie Universität Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Deutschland
| | - Malte Brasholz
- Fachbereich Chemie – Institut für Organische Chemie Universität Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Deutschland
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17
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Alpers D, Gallhof M, Witt J, Hoffmann F, Brasholz M. A Photoredox‐Induced Stereoselective Dearomative Radical (4+2)‐Cyclization/1,4‐Addition Cascade for the Synthesis of Highly Functionalized Hexahydro‐1
H
‐carbazoles. Angew Chem Int Ed Engl 2017; 56:1402-1406. [DOI: 10.1002/anie.201610974] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Dirk Alpers
- Department of Chemistry—Institute of Organic Chemistry University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Malte Gallhof
- Department of Chemistry—Institute of Organic Chemistry University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Julian Witt
- Department of Chemistry—Institute of Organic Chemistry University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Frank Hoffmann
- Department of Chemistry—Institute of Inorganic Chemistry University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Malte Brasholz
- Department of Chemistry—Institute of Organic Chemistry University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
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18
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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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19
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Arai T, Tokumitsu C, Miyazaki T, Kuwano S, Awata A. Catalytic asymmetric [3 + 2]-cycloaddition for stereodivergent synthesis of chiral indolyl-pyrrolidines. Org Biomol Chem 2016; 14:1831-9. [DOI: 10.1039/c5ob02278a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The stereochemical divergent synthesis of indolyl-pyrrolidines was accomplished using an imidazoline-aminophenol (IAP)–Ni(OAc)2 complex and a bis(imidazolidine)pyridine (PyBidine)–Cu(OTf)2 complex.
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Affiliation(s)
- Takayoshi Arai
- Molecular Chirality Research Center
- and Department of Chemistry
- Graduate School of Science
- Chiba University
- Inage
| | - Chihiro Tokumitsu
- Molecular Chirality Research Center
- and Department of Chemistry
- Graduate School of Science
- Chiba University
- Inage
| | - Tomoya Miyazaki
- Molecular Chirality Research Center
- and Department of Chemistry
- Graduate School of Science
- Chiba University
- Inage
| | - Satoru Kuwano
- Molecular Chirality Research Center
- and Department of Chemistry
- Graduate School of Science
- Chiba University
- Inage
| | - Atsuko Awata
- Molecular Chirality Research Center
- and Department of Chemistry
- Graduate School of Science
- Chiba University
- Inage
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20
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Yang QQ, Marchini M, Xiao WJ, Ceroni P, Bandini M. Visible-Light-Induced Direct Photocatalytic Carboxylation of Indoles with CBr4/MeOH. Chemistry 2015; 21:18052-6. [DOI: 10.1002/chem.201503787] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Indexed: 01/05/2023]
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21
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Mühmel S, Alpers D, Hoffmann F, Brasholz M. Iridium(III) Photocatalysis: A Visible-Light-Induced Dearomatizative Tandem [4+2] Cyclization to Furnish Benzindolizidines. Chemistry 2015. [PMID: 26211917 DOI: 10.1002/chem.201502572] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A photocatalytic dearomatizative tandem [4+2] cyclization between N-(2-iodoethyl)indoles and a variety of alkenes leads to tri- and tetracyclic benzindolizidines with high diastereoselectivity and yield. The intermolecular annulation reaction is performed under visible-light irradiation and employs [Ir(ppy)3] or [Ir(dtbbpy)(ppy)2] PF6 as photocatalysts, in combination with tertiary amines as electron and hydrogen atom donors.
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Affiliation(s)
- Sandra Mühmel
- Department of Chemistry, Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Dirk Alpers
- Department of Chemistry, Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Frank Hoffmann
- Department of Chemistry, Institute of Inorganic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Malte Brasholz
- Department of Chemistry, Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany).
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22
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Shelar DP, Li TT, Chen Y, Fu WF. Platinum(II) Schiff Base Complexes as Photocatalysts for Visible-Light-Induced Cross-Dehydrogenative Coupling Reactions. Chempluschem 2015; 80:1541-1546. [DOI: 10.1002/cplu.201500157] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 06/03/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Deepak Prakash Shelar
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Ting-Ting Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Wen-Fu Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
- College of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650092 P. R. China
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23
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Dong W, Liu Y, Hu B, Ren K, Li Y, Xie X, Jiang Y, Zhang Z. Visible light induced radical cyclization of o-iodophenylacrylamides: a concise synthesis of indolin-2-one. Chem Commun (Camb) 2015; 51:4587-90. [DOI: 10.1039/c5cc00072f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Radical cyclization of o-iodophenylacrylamides afforded indolin-2-ones in good yields.
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Affiliation(s)
- Wuheng Dong
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Yan Liu
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Bei Hu
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Kai Ren
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yuyuan Li
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xiaomin Xie
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yuexiu Jiang
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Zhaoguo Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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24
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Yang D, Wang L, Han F, Li D, Zhao D, Cao Y, Ma Y, Kong W, Sun Q, Wang R. Highly Enantioselective Ring-Opening Reactions of Aziridines with Indole and Its Application in the Building of C3-Halogenated Pyrroloindolines. Chemistry 2014; 20:16478-83. [DOI: 10.1002/chem.201404354] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Indexed: 11/11/2022]
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25
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Li J, Wang H, Liu L, Sun J. Metal-free, visible-light photoredox catalysis: transformation of arylmethyl bromides to alcohols and aldehydes. RSC Adv 2014. [DOI: 10.1039/c4ra09190f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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26
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Zhou S, Zhang D, Sun Y, Li R, Zhang W, Li A. Intermolecular Conjugate Addition of Pyrroloindoline and Furoindoline Radicals to α,β-Unsaturated EnonesviaPhotoredox Catalysis. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400702] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Beaud R, Guillot R, Kouklovsky C, Vincent G. Regioselective hydroarylation reactions of C3 electrophilic N-acetylindoles activated by FeCl3: an entry to 3-(hetero)arylindolines. Chemistry 2014; 20:7492-500. [PMID: 24828464 DOI: 10.1002/chem.201400284] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Indexed: 11/06/2022]
Abstract
A method for the direct and rare umpolung of the 3 position of indoles is reported. The activation of N-acetylindole with iron(III) chloride allows the C-H addition of aromatic and heteroaromatic substrates to the C2=C3 double bond of the indole nucleus to generate a quaternary center at C3 and leads regioselectively to 3-arylindolines. Optimization, scope (50 examples), practicability (gram scale, air atmosphere, room temperature), and mechanistic insights of this process are presented. Synthetic transformations of the indoline products into drug-like compounds are also described.
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Affiliation(s)
- Rodolphe Beaud
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe Méthodologie, Synthèse et Molécules Thérapeutiques, Univ Paris Sud and CNRS, 15 rue Georges Clemenceau, Bat 410, 91406, Orsay (France), Fax: (+33) 1-69-15-46-79
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28
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An Imidazoline-Aminophenol (IAP) Nickel Catalyst: Structure and Catalytic Activity in the Enantioselective 1,4-Addition of 3′-Indolyl-3-Oxindoles to Nitroethylene. Chemistry 2014; 20:2470-7. [DOI: 10.1002/chem.201304456] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Indexed: 12/30/2022]
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29
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Xue D, Jia ZH, Zhao CJ, Zhang YY, Wang C, Xiao J. Direct arylation of N-heteroarenes with aryldiazonium salts by photoredox catalysis in water. Chemistry 2014; 20:2960-5. [PMID: 24500947 DOI: 10.1002/chem.201304120] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 12/02/2013] [Indexed: 01/11/2023]
Abstract
A highly effective visible light-promoted "radical-type" coupling of N-heteroarenes with aryldiazonium salts in water has been developed. The reaction proceeds at room temperature with [Ru(bpy)3 ]Cl2 ⋅6 H2 O as a photosensitizer and a commercial household light bulb as a light source. Pyridine and a variety of substituted pyridines are effective substrates under these reaction conditions, and only monosubstituted products are formed with different regioselectivities. Using aqueous formic acid as solvent, an array of xanthenes, thiazole, pyrazine, and pyridazine are compatible with this new arylation approach. The broad substrate scope, mild reaction conditions, and use of water as reaction solvent make this procedure a practical and environmentally friendly method for the synthesis of compounds containing aryl-heteroaryl motifs.
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Affiliation(s)
- Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062 (China).
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30
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Kee CW, Chan KM, Wong MW, Tan CH. Selective Bromination of sp3CH Bonds by Organophotoredox Catalysis. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300169] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Highly Enantioselective Bromocyclization of Tryptamines and Its Application in the Synthesis of (−)-Chimonanthine. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306774] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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32
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Xie W, Jiang G, Liu H, Hu J, Pan X, Zhang H, Wan X, Lai Y, Ma D. Highly Enantioselective Bromocyclization of Tryptamines and Its Application in the Synthesis of (−)-Chimonanthine. Angew Chem Int Ed Engl 2013; 52:12924-7. [DOI: 10.1002/anie.201306774] [Citation(s) in RCA: 200] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 09/04/2013] [Indexed: 11/10/2022]
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33
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Huang JZ, Wu X, Gong LZ. Enantioselective Organocatalytic Addition of Nitroalkanes to Oxindolylideneindolenines for the Construction of Chiral 3,3-Disubstituted Oxindoles. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300373] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Sun Y, Li R, Zhang W, Li A. Total Synthesis of Indotertine A and Drimentines A, F, and G. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303334] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yu Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
| | - Ruofan Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
| | - Wenhao Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032 (China)
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35
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Sun Y, Li R, Zhang W, Li A. Total synthesis of indotertine A and drimentines A, F, and G. Angew Chem Int Ed Engl 2013; 52:9201-4. [PMID: 23857819 DOI: 10.1002/anie.201303334] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 06/20/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Yu Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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36
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Baralle A, Fensterbank L, Goddard JP, Ollivier C. Aryl Radical Formation by Copper(I) Photocatalyzed Reduction of Diaryliodonium Salts: NMR Evidence for a CuII/CuIMechanism. Chemistry 2013; 19:10809-13. [DOI: 10.1002/chem.201301449] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Indexed: 11/06/2022]
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37
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Donck S, Baroudi A, Fensterbank L, Goddard JP, Ollivier C. Visible-Light Photocatalytic Reduction of Sulfonium Salts as a Source of Aryl Radicals. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300040] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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38
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An J, Zou YQ, Yang QQ, Wang Q, Xiao WJ. Visible Light-Induced Aerobic Oxyamidation of Indoles: A Photocatalytic Strategy for the Preparation of Tetrahydro-5H-indolo[2,3-b]quinolinols. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300175] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Jiang H, Chen X, Zhang Y, Yu S. CH Functionalization of Enamides: Synthesis of β-Amidovinyl SulfonesviaVisible-Light Photoredox Catalysis. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200874] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Song J, Guo C, Adele A, Yin H, Gong L. Enantioselective Organocatalytic Construction of Hexahydropyrroloindole by Means of α‐Alkylation of Aldehydes Leading to the Total Synthesis of (+)‐Gliocladin C. Chemistry 2013; 19:3319-23. [DOI: 10.1002/chem.201204522] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Indexed: 01/16/2023]
Affiliation(s)
- Jin Song
- Hefei National Laboratory for Physical Sciences, Microscale Joint Laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026 (P.R. China), Fax: (+86) 551‐3606266
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences, Microscale Joint Laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026 (P.R. China), Fax: (+86) 551‐3606266
| | - Arafate Adele
- Hefei National Laboratory for Physical Sciences, Microscale Joint Laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026 (P.R. China), Fax: (+86) 551‐3606266
| | - Hao Yin
- Hefei National Laboratory for Physical Sciences, Microscale Joint Laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026 (P.R. China), Fax: (+86) 551‐3606266
| | - Liu‐Zhu Gong
- Hefei National Laboratory for Physical Sciences, Microscale Joint Laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, 230026 (P.R. China), Fax: (+86) 551‐3606266
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41
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Arai T, Yamamoto Y, Awata A, Kamiya K, Ishibashi M, Arai MA. Catalytic Asymmetric Synthesis of Mixed 3,3′-Bisindoles and Their Evaluation as Wnt Signaling Inhibitors. Angew Chem Int Ed Engl 2013; 52:2486-90. [DOI: 10.1002/anie.201208918] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 01/04/2013] [Indexed: 11/12/2022]
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42
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Arai T, Yamamoto Y, Awata A, Kamiya K, Ishibashi M, Arai MA. Catalytic Asymmetric Synthesis of Mixed 3,3′-Bisindoles and Their Evaluation as Wnt Signaling Inhibitors. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208918] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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43
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Novartis Early Career Award: S. E. Reisman and C. R. J. Stephenson / Carl Duisberg Plaque: G. Gauglitz / Basolo Medal: R. Eisenberg / Bohlmann Lecture: D. W. C. MacMillan / Klung Wilhelmy Weberbank Prize: T. Ritter. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201209035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Novartis Early Career Award: S. E. Reisman und C R. J. Stephenson / Carl-Duisberg-Plakette: G. Gauglitz / Basolo-Medaille: R. Eisenberg / Bohlmann-Vorlesung: D. W. C. MacMillan / Klung-Wilhelmy-Weberbank-Preis: T. Ritter. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201209035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Ju X, Li D, Li W, Yu W, Bian F. The Reaction of Tertiary Anilines with Maleimides under Visible Light Redox Catalysis. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200608] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Beaud R, Guillot R, Kouklovsky C, Vincent G. FeCl3-Mediated Friedel-Crafts Hydroarylation with ElectrophilicN-Acetyl Indoles for the Synthesis of Benzofuroindolines. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206611] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Beaud R, Guillot R, Kouklovsky C, Vincent G. FeCl3-Mediated Friedel-Crafts Hydroarylation with ElectrophilicN-Acetyl Indoles for the Synthesis of Benzofuroindolines. Angew Chem Int Ed Engl 2012; 51:12546-50. [DOI: 10.1002/anie.201206611] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Indexed: 11/08/2022]
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48
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Kim H, Lee C. Visible-Light-Induced Photocatalytic Reductive Transformations of Organohalides. Angew Chem Int Ed Engl 2012; 51:12303-6. [DOI: 10.1002/anie.201203599] [Citation(s) in RCA: 233] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 09/16/2012] [Indexed: 11/10/2022]
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49
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Kim H, Lee C. Visible-Light-Induced Photocatalytic Reductive Transformations of Organohalides. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203599] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Jiang H, Huang C, Guo J, Zeng C, Zhang Y, Yu S. Direct C-H functionalization of enamides and enecarbamates by using visible-light photoredox catalysis. Chemistry 2012; 18:15158-66. [PMID: 23018775 DOI: 10.1002/chem.201201716] [Citation(s) in RCA: 154] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/27/2012] [Indexed: 11/10/2022]
Abstract
Direct C-H functionalization of various enamides and enecarbamates was realized through visible-light photoredox catalyzed reactions. Under the optimized conditions using [Ir(ppy)(2)(dtbbpy)PF(6)] as photocatalyst in combination with Na(2)HPO(4), enamides such as N-vinylpyrrolidinone could be easily functionalized by irradiation of the reaction mixture overnight in acetonitrile with visible light. The scope of the reaction with respect to enamide and enecarbamate substrates by using diethyl 2-bromomalonate for the alkylation reaction was explored, followed by an investigation of the scope of alkylating reagents used to react with the enamides and enecarbamates. The results indicated that reaction takes place with quite broad substrate scope, however, tertiary enamides with an internal C=C double bond in the E configuration could not be alkylated. Alkylation of N-vinyl tertiary enamides and enecarbamates gave monoalkylated products exclusively in the E configuration. Alkylation of N-vinyl secondary enamides gave doubly alkylated products. Double bond migration was observed in the reaction of electron-deficient bromides such as 3-bromoacetyl acetate with N-vinylpyrrolidinone. A mechanism is proposed for the reaction that is different from reported reactions of SOMOphiles with a nonfunctionalized C=C double bond. Further tests on the trifluoromethylation and arylation of enamides and enecarbamates under similar conditions showed that the reactions could serve as a mild, practical, and environmentally friendly approach to various functionalized enamides and enecarbamates.
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Affiliation(s)
- Heng Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, Institute of Chemical Biology and Drug Innovation, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
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