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Zhao L, Yang H, Li R, Tao Y, Guo XF, Anderson EA, Whiting A, Wu N. Synthesis of Sulfonamide-Based Ynamides and Ynamines in Water. J Org Chem 2021; 86:1938-1947. [PMID: 33356269 DOI: 10.1021/acs.joc.0c02326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ynamides, though relatively more stable than ynamines, are still moisture-sensitive and prone to hydration especially under acidic and heating conditions. Here we report an environmentally benign, robust protocol to synthesize sulfonamide-based ynamides and arylynamines via Sonogashira coupling reactions in water, using a readily available quaternary ammonium salt as the surfactant.
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Affiliation(s)
- Lei Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Hongyi Yang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Ruikun Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Ye Tao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Xiao-Feng Guo
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew Whiting
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Na Wu
- School of Chemistry and Bioscience, University of Bradford, Bradford, West Yorkshire BD7 1DP, U.K
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Zhao Z, Zhang Y, Shao Y, Xiong W, Li R, Chen J. Synthesis of 3-Selenylindoles through Organoselenium-Promoted Selenocyclization of 2-Vinylaniline. J Org Chem 2020; 85:15015-15025. [PMID: 33152246 DOI: 10.1021/acs.joc.0c01918] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel metal-free one-pot protocol for the synthesis of potential biologically active molecules 3-selenylindoles via intramolecular cyclization/selenylation with simple 2-vinylaniline has been developed with moderate to good yield, thus representing it as a facile route to diverse substitution patterns around the indole core. The reaction proceeded smoothly with a broad substrate scope and excellent functional group tolerance. Moreover, the present synthetic route could be readily scaled up to gram quantity without difficulty. Mechanistic studies have revealed that in situ formed selenium electrophile species may be the key intermediate for the selenocyclization process.
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Affiliation(s)
- Zhiwei Zhao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yetong Zhang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wenzhang Xiong
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Renhao Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
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3
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Guo T, Ding Y, Zhou L, Xu H, Loh TP, Wu X. Palladium-Catalyzed anti-Michael Reductive Heck Reaction of α,β-Unsaturated Esters. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02414] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Guo
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yalan Ding
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Lili Zhou
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Haiyan Xu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637616
| | - Xiaojin Wu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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4
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Li Y, Gong JF, Song MP. Palladium-catalyzed δ-selective reductive Heck reaction of alkenyl carbonyl compounds with aryl iodides and bromides. Org Chem Front 2020. [DOI: 10.1039/d0qo00428f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A simple, operationally convenient and highly regioselective palladium-catalyzed reductive Heck reaction of alkenyl carbonyl compounds with aryl iodides and bromides has been developed to afford structurally diverse δ-aryl pentanoic acid derivatives.
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Affiliation(s)
- Yang Li
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Green Catalysis Center
- Zhengzhou University
- Zhengzhou 450001
| | - Jun-Fang Gong
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Green Catalysis Center
- Zhengzhou University
- Zhengzhou 450001
| | - Mao-Ping Song
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Green Catalysis Center
- Zhengzhou University
- Zhengzhou 450001
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