Abstract This paper describes copper-catalyzed N–C heteroarylation of benzimidazole, 1- methylbenzimidazolone, imidazole and pyrrole. The products of these reactions then undergo palladium-catalyzed C–C cross-couplings with aryl or heteroarylboronic acids under Suzuki–Miyaura conditions to provide a rapid entry, from readily-available reagents, into tris (hetero) aryl scaffolds comprising two or three N-heterocyclic rings. The sequential ...
