One-Pot Synthesis of 1,2-Diphenyl-1H-benzo[d]imidazole Derivatives by a Pd-Catalyzed N-Arylation and Cu-Catalyzed C—H Functionalization/C—N Bond Formation Process.

A one-pot synthesis of 1,2-diphenyl-1H-benzo[d]imidazole derivatives starting from N-phenylbenzimidamides and iodobenzenes or bromobenzenes has been introduced. The process consisted of a Pd-catalyzed N-arylation and a Cu-catalyzed C–H functionalization/C–N bond formation.