One‐Pot Synthesis of Benzimidazoles from o‐Nitroanilines under Microwaves via a Reductive Cyclization

Abstract

Abstract An efficient microwave irradiation synthesis of 2‐substituted benzimidazoles in one step via the Na2S2O4 reduction of o‐nitroanilines in the presence of aldehydes is described. The method is simple and a good option to obtain the title compounds in a very short time.