Gold/photoredox-cocatalyzed atom transfer thiosulfonylation of alkynes: Stereoselective synthesis of vinylsulfones.

Graphical abstract Highlights • This strategy offers a new approach for the radical dithiolation of alkynes. • Extremely low catalyst loading of both catalysts was required. • Au catalyst helped to initiate the reaction and deliver better stereoselectivity. • Features of this reaction include excellent stereoselectivity and atom economy. Abstract We report a gold and photoredox combined radical approach for the rapid synthesis of thio-functionalized vinylsulfones from alkynes. Key features of this method include very mild conditions, broad substrate scope, excellent regio- and stereoselectivties, and 100% atom economy. [ABSTRACT FROM AUTHOR]