AN EFFICIENT SYNTHESIS OF 2,4,5-TRIARYL-1H-IMIDAZOLE USING SnO2/SiO2 NANOCOMPOSITE CATALYST

Abstract

SnO2/SiO2 catalyzed synthesis of 2,4,5-triarylimidazoles by the condensation of benzoin, aromatic aldehydes and ammonium acetate in presence of ethanol as solvent. The synthesis highlights a synthesis and use of SnO2/SiO2 nanocomposite heterogeneous catalyst and its reusability. The method is cost effective and ecofriendly. And use of ethanol as a solvent makes the method more green and efficient. The method has simple workup procedure and the products are obtained in good to moderate yields.