Straightforward access to aryl-substituted/fused 1,3-dithiole-2- chalcogenones by Cu-catalyzed C-S coupling between aryl iodides and zinc-thiolate complex (TBA)2[Zn(DMIT)2]

The Cu-catalyzed C-S coupling between iodoaryl and a zincthiolate complex was achieved. This protocol provides a facile and efficient synthetic approach for aryl-substituted/fused 1,3-dithiole-2-chalcogenones, which can be converted to TTFs.