One-pot synthesis of 2-aminobenzimidazoles using 2-chloro-1,3-dimethylimidazolinium chloride (DMC)

Abstract 2-Chloro-1,3-dimethylimidazolinium chloride (DMC or DMC-Cl) has been found to effectively and rapidly generate 2-aminobenzimidazoles from 1,2-diaminoarenes and isothiocyanates in moderate to good yields at room temperature in a one-pot operation.