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Ren N, Zhang L, Hu Y, Wang X, Deng Z, Chen J, Deng H, Zhang H, Tang XJ, Cao W. Perfluoroalkyl-Promoted Synthesis of Perfluoroalkylated Pyrrolidine-Fused Coumarins with Methyl β-Perfluoroalkylpropionates. J Org Chem 2021; 86:15717-15725. [PMID: 34644085 DOI: 10.1021/acs.joc.1c01538] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Employing the methyl β-perfluoroalkylpropionate as the Michael acceptor, an efficient approach for the synthesis of perfluoroalkylated pyrrolidine-fused coumarins has been achieved. A tandem reaction involving [3 + 2] cycloaddition and intramolecular transesterification was proposed for the mechanism. The enhanced electrophilicity resulting from the strong electron-withdrawing ability of the perfluoroalkyl group was crucial for this tandem reaction.
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Affiliation(s)
- Nan Ren
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Lingfeng Zhang
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Yijie Hu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Xiaoli Wang
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Zhen Deng
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Jie Chen
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Hongmei Deng
- Laboratory for Microstructures and Instrumental Analysis and Research Center, Shanghai University, Shanghai, 200444, China
| | - Hui Zhang
- Laboratory for Microstructures and Instrumental Analysis and Research Center, Shanghai University, Shanghai, 200444, China
| | - Xiao-Jun Tang
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Weiguo Cao
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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