Straightforward One‐Pot Synthesis of Trifluoromethyl Sulfonium Salts

Abstract

Mix and wait: Trifluoromethyl sulfonium salts that are able to react as reagents in the trifluoromethylation of various nucleophiles are formed in a multicomponent reaction. The desired electrophilic reagents are prepared from an aryl substrate, trifluoromethanesulfonic anhydride, and potassium trifluoromethanesulfinate in a one-pot procedure (see scheme).