Abstract Electrochemical fluorination of acetofenone and benzophenone was studied in anhydrous HF and in solutions. The electrochemical fluorination of acetophenone in HF occurred exclusively in the ring and furnished ortho-and meta-isomers of fluoroacetophenone, 2, 5-difluoroacetophenone, and 1-(3, 3, 6, 6-tetrafluoro-1, 4- cyclohexadienyl)-1-ethanone. The fluorination of benzophenone in anhydrous HF ...