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1
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Zheng L, Qiu X, Xiao Z, Ma X, Gao T, Zhou X, Wang Y, Guo Y, Chen QY, Liu C. Deoxygenation of ClSO 2CF 2COOMe with Triphenylphosphine for the Metal-Free Direct Electrophilic Difluoroalkylthiolation of Various Heterocycles. J Org Chem 2023. [PMID: 37134234 DOI: 10.1021/acs.joc.3c00342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A direct electrophilic difluoroalkylthiolation reaction of indole derivatives and other electron-rich heterocycles using methyl 2,2-difluoro-2-(chlorsulfonyl)acetate (ClSO2CF2COOMe) derived from Chen's reagent (FSO2CF2COOMe) is described. The ester group in the product can be further utilized in subsequent versatile transformations. The reactions provide good yields of the corresponding difluoroalkylthiolation products and exhibit high functional group compatibility. It is expected to serve as an alternative and practical protocol for difluoroalkylthiolation of various heterocycles.
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Affiliation(s)
- Liping Zheng
- School of Chemical Engineering and Food Science, Zhengzhou University of Technology, 18 Yingcai Street, Zhengzhou 450044, China
| | - Xin Qiu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Zhiwei Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiaoyu Ma
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Tianzeng Gao
- Henan Ground Biological Science & Technology Co., Ltd., 3 Tanxiang Road, Zhengzhou 450001, China
| | - Xiumiao Zhou
- School of Chemical Engineering and Food Science, Zhengzhou University of Technology, 18 Yingcai Street, Zhengzhou 450044, China
| | - Yufei Wang
- School of Chemical Engineering and Food Science, Zhengzhou University of Technology, 18 Yingcai Street, Zhengzhou 450044, China
| | - Yong Guo
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qing-Yun Chen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Chao Liu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
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Doche F, Escudero J, Petit‐Cancelier F, Xiong H, Couve‐Bonnaire S, Audisio D, Poisson T, Besset T. Directed Palladium Catalyzed C-H (Ethoxycarbonyl)difluoromethylthiolation Reactions. Chemistry 2022; 28:e202202099. [PMID: 35904010 PMCID: PMC9826264 DOI: 10.1002/chem.202202099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Indexed: 01/11/2023]
Abstract
The unprecedented Pd-catalyzed (ethoxycarbonyl)difluoromethylthiolation reaction of various unsaturated derivatives was studied. In the presence of the (ethoxycarbonyl)difluoromethylsulfenamide reagent I and under mild reaction conditions (60 °C), both 2-(hetero)aryl and 2-(α-aryl-vinyl)pyridine derivatives were smoothly functionalized with this methodology (37 examples, up to 87 % yield). Moreover, the synthetic interest of this fluorinated moiety was further showcased by its conversion into various original fluorinated residues. Finally, a plausible mechanism for this transformation was suggested.
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Affiliation(s)
- Floriane Doche
- Normandie Univ.INSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance).
| | - Julien Escudero
- Normandie Univ.INSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance).
| | | | - Heng‐Ying Xiong
- Normandie Univ.INSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance).
| | | | - Davide Audisio
- CEADépartement Médicaments et Technologies pour la SantéSCBMUniversité Paris Saclay91191Gif-sur-YvetteFrance
| | - Thomas Poisson
- Normandie Univ.INSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance).,Institut Universitaire de France1 rue Descartes75231ParisFrance
| | - Tatiana Besset
- Normandie Univ.INSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance).
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Petit‐Cancelier F, Ruyet L, Couve‐Bonnaire S, Besset T. Distal Construction of a Carbon‐SCF
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R Bond on Aliphatic Alcohols Enabled by 1,5‐Hydrogen‐Atom Transfer. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Louise Ruyet
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | | | - Tatiana Besset
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
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