Convenient synthesis of heteroaryl-linked benzimidazoles via microwave-assisted boronate ester formation

N-Substituted 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzimidazoles were conveniently accessed via microwave-assisted synthesis. Subsequent Suzuki-Miyaura reaction with heteroaryl halides proceeded to give a wide variety of 5-heteroaryl-substituted benzimidazoles.