Syntheses of Benzimidazole Derivatives from Aromatic Trichloromethyl Compounds with Aromatic o-Diamines

Abstract

Aromatic trichloromethyl compounds such as 4, 5-bis(trichloromethyl)imidazole, 1-methyl-4(trichloromethyl)imidazole-5-carboxylic acid, 1-methyl-4- (trichloromethyl)imidazole, ev-(trichloromethyl)-pyridine and benzotrichloride reacted with o-phenylenediamine or 3, 3 -diaminobenzidine, giving corresponding benzimidazole derivatives.