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Synthesis of New Highly Functionalized 1 H-Indole-2-carbonitriles via Cross-Coupling Reactions. Molecules 2021; 26:molecules26175287. [PMID: 34500719 PMCID: PMC8434198 DOI: 10.3390/molecules26175287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/29/2022] Open
Abstract
An approach for the preparation of polysubstituted indole-2-carbonitriles through a cross-coupling reaction of compounds 1-(but-2-ynyl)-1H-indole-2-carbonitriles and 1-benzyl-3-iodo-1H-indole-2-carbonitriles is described. The reactivity of indole derivatives with iodine at position 3 was studied using cross-coupling reactions. The Sonogashira, Suzuki–Miyaura, Stille and Heck cross-couplings afforded a variety of di-, tri- and tetra-substituted indole-2-carbonitriles.
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Zhang J, Hu Y, Wang H, Guo A, Kong J, Ma R, Wu T, Wang Y, Li LS, Mai W, Ren P, Deng X. Regioselective Functionalization of 4-Methyl-1H-indole for Scalable Synthesis of 2-Cyano-5-formyl-4-methyl-1H-indole. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.7b00370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jun Zhang
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Yun Hu
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Haiyu Wang
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Aixin Guo
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Jianshe Kong
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Rujian Ma
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Tao Wu
- Wellspring Biosciences
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Yi Wang
- Wellspring Biosciences
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Lian-Sheng Li
- Wellspring Biosciences
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Wanping Mai
- Kura Oncology
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Pingda Ren
- Kura Oncology
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Xiaohu Deng
- Kura Oncology
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
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Sudo Y, Yamaguchi E, Itoh A. Photo-oxidative Cross-Dehydrogenative Coupling-Type Reaction of Thiophenes with α-Position of Carbonyls Using a Catalytic Amount of Molecular Iodine. Org Lett 2017; 19:1610-1613. [DOI: 10.1021/acs.orglett.7b00428] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yusuke Sudo
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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Liu Y, Wang X, Wang L, Shen J, Feng Y, Cui X. Easy access to 3-indolyl 1,1,2,2-ethanetetracarboxylates from malonates and indoles catalyzed by Pd(OAc)2. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.10.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yan J, Ni T, Yan F, Zhang J, Zhuang F. Friedel–Crafts reaction of indoles with vicinal tricarbonyl compounds generated in situ from 1,3-dicarbonyl compounds and TEMPO: highly selective synthesis of tertiary alcohols. RSC Adv 2015. [DOI: 10.1039/c5ra17383c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel Friedel–Crafts reaction of indoles with vicinal tricarbonyl compounds generated in situ has been developed, forming indolyl tertiary alcohols. The process involves disproportionation of TEMPO, α-oxyamination, N–O bond cleavage and, finally, addition of the indole.
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Affiliation(s)
- Jianwei Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Tianjun Ni
- Department of Chemistry
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Fulin Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Jixia Zhang
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Fangfang Zhuang
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
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