Synthesis of 1,2-Disubstituted Benzimidazoles in the Presence of SBA-Pr-SO3 H as a Nano Solid Acid Catalyst

In this article, simple, convenient synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazole (1,2-disubstituted benzimidazoles) via condensation of 1,2-phenylenediamine and aromatic aldehydes using SBA-Pr-SO 3 H as a nanoporous solid acid catalyst in green protocol was reported.