A simple and efficient method for the synthesis of 3-(1H-benzo[d]imidazol-1- yl)isoindolin-1-one
derivati ves by a one-pot, three-componen t condensation reaction of phthalaldehydic acid, primary
amine, and 2-mercaptobenzimidazole or 2-hyd roxybenzimidazole is described. By using EtOH–AcOH
(v/v, 15:1) as the solvent system, the reaction proceeds smoothly to give corresponding products in good
yields.