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Electrochemical fluoromethylation triggered lactonizations of alkenes under semi-aqueous conditions
Sheng Zhang1, Lijun Li1, Jinjin Zhang1
1Engineering Technology Research Center of Henan Province for Photo- and Electrochemical Catalysis , College of Chemistry and Pharmaceutical Engineering , Nanyang Normal University , Nanyang , 473061 , China . Email: shengzhang@nynu.edu.cn ;
Abstract:
An electrochemical difluoromethylation triggered lactonization of alkenes was developed for the first time. This protocol employs readily prepared CF2HSO2Na as the difluoromethylating reagent, affording unprecedented CF2H-containing lactones in moderate yields. Moreover, with CF3SO2Na as the trifluoromethylating reagent, a wide array of CF3-containing lactones were obtained under additional supporting electrolyte- and catalyst-free conditions.
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