Visible-light-driven graphitic carbon nitride-catalyzed ATRA of alkynes: highly regio- and stereoselective synthesis of (E)-β-functionalized vinylsulfones

A visible-light-driven g-C 3 N 4 -catalyzed atom transfer radical addition (ATRA) of alkynes to synthesize valuable ( E )-β-thio/seleno vinylsulfones is accomplished. g-C 3 N 4 can be recovered and reused in five runs without loss of catalytic activity.