Abstract
A novel method for bromotrifluoromethylation of arylalkyne was demonstrated. Utilizing NaSO2CF3 as the source of CF3, various arylalkynes can be smoothly bromotrifluoromethylated via a NaBrO3-mediated free radical process. In this reaction, NaBrO3 acts as both single-electron oxidant and donor of the bromine atom. In addition, the present system features transition-metal free and high chemoselectivity, which make it become an attractive strategy for installation of trifluoromethyl group into organic molecules.
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