Nanoparticles supported graphene oxide and its application as an efficient and recyclable nano-catalyst in the synthesis of imidazole derivatives in ultrasound solvent-free condition

Abstract

In this research, GO has been supported by some metal oxide for preparing a novel nano-catalyst. This reusable nano-catalyst has been used for the synthesis of some benzimidazoles from corresponding aldehydes and 1,2-benzenediamine. The reaction condition is simple and the products yield are excellent. The nano-catalyst's structure has been confirmed by FT-IR, scanning electron microscopy, transmission electron microscopy and atomic forced molecule and all heterocycle products have been characterized by FTIR, HNMR, CNMR and their mp were compared by those reported in references.