A simple and efficient one-pot phenyl phonic acid catalyzed synthesis of 2-aryl-benzimidazoles derivatives undermild conditions

Mehdi Forouzani, Mahmood Tajba

Abstract

Various 2-aryl-benzimidazoles can be prepared by reaction of the o-phenylenediamine with various arylaldehydes at 80 oC catalyzed by phenyl phonic acid as an effective reagent under neutral conditions in satisfactory yields.