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Heravi, M.M., Tajbakhsh, M., Ahmadi, A.N. and Mohajerani, B. (2006) Zeolites. Efficient and Eco-Friendly Catalysts for the Synthesis of Benzimidazoles. Monatshefte fur Chemie, 137, 175-179.
ABSTRACT: A fast, high efficiency and environmentally friendly procedure for the synthesis of 2-aryl benzim-idazole derivatives has been reported. Reaction between 1,2-phenylenediamine derivatives and arylidene malononitrile under aqueous media and also solvent-free conditions generates 2-aryl benzimidazole derivatives with a high yield.