A new method for the synthesis of trifluoromethylating agents—Diaryltrifluoromethylsulfonium salts

A new synthetic method has been developed to prepare diaryltrifluoromethylsulfonium salts from diaryldifluorosulfuranes by the action of Me3SiCF3/F−. This reaction is the transformation of nucleophilic trifluoro-methylating reagent into electrophilic one.

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