B(C6F5)3-catalyzed regio- and stereoselective thiosulfonylation of terminal alkynes with thiosulfonates

Herein, we report a B(C 6 F 5 ) 3 -catalyzed highly regio- and stereoselective thiosulfonylation of terminal alkynes with thiosulfonates to access diverse ( E )-(β)-arylthiolvinyl sulfones.