Tin oxide nanoparticles (SnO2-NPs): An efficient catalyst for the one-pot synthesis of highly substituted imidazole derivatives

In this work, direct three component condensation of 9,10-phenanthraquinone or acenaphthenequinone with aryl aldehyde and ammonium acetate to generate highly substituted imidazole derivatives was performed over tin oxide nanoparticles. The resulting reactions were conducted at high efficiency in ethanol under reflux conditions.