The reaction of o-phenylenediamine with aromatic aldehydes in MeOH at room temperature catalyzed by cerium (IV) ammonium nitrate (CAN) afforded either 2-aryl-1-arylmethyl-1. H-benz-imidazoles and/or 2-aryl-substituted benzimidazoles. © 2010.
Sadek, K. U., Al-Qalaf, F., Mekheimer, R. A., & Elnagdi, M. H. (2012). Cerium (IV) ammonium nitrate-mediated reactions: Simple route to benzimidazole derivatives. Arabian Journal of Chemistry, 5(1), 63–66. https://doi.org/10.1016/j.arabjc.2010.07.024