Aryl propargyl sulfides were subjected to electrochemical fluorination in dimethoxyethane (DME) containing various fluoride supporting electrolytes using an undivided cell to provide the corresponding α-monofluorinated or α, α-difluorinated sulfides selectively as main products in good yields depending on the amount of electricity passed. The α, α- difluorinated sulfides were stable enough to be isolated while the α-monofluorinated ones ...
