Copper-Catalyzed 8‑Aminoquinoline-Directed Selenylation of Arene and Heteroarene C–H Bonds

An efficient copper-catalyzed/-mediated and 8-aminoquinoline-assisted arylselenylation of inert C–H bonds of (hetero)­arenes with readily available diselenides has been reported. The reaction is scalable and tolerates a wide spectrum of functional groups to deliver diarylselenides in very high yields (up to 98%). Application of this methodology to the facile synthesis of thiophene-fused selenochromone was demonstrated.