Visible-light-triggered direct keto-difluoroacetylation of styrenes with (fluorosulfonyl)difluoroacetate and dimethyl sulfoxide leads to α-difluoroacetylated ketones†
Abstract
Photoredox-catalyzed direct keto-difluoroacetylation of styrenes with (fluorosulfonyl)difluoroacetate and dimethyl sulfoxide as an oxidant is disclosed. A variety of α-difluoroacetylated ketones bearing functional groups with good yields are obtained using fac-Ir(ppy)3 as a photocatalyst under visible light irradiation.