Fabrication of Nano-CuO@ZnO for the Synthesis of Functionalized beta-Enaminone Derivatives from beta-Nitrostyrenes, Aliphatic/Aromatic Amines and 1,3-Dicarbonyl/4-Hydroxy Coumarin

摘要

abstract_textpHere, we have reported synthesis, characterization of CuO doped ZnO nanoparticles (CuO@ZnO NPs) and its applications for the synthesis of functionalized beta-enaminone derivatives via one-pot three component reactions of beta-nitrostyrenes, aliphatic/aromatic amines or alcohols and 5,5-dimethylcyclohexane-1,3-dione/4-hydroxycoumarin. The present CuO@ZnO NPs catalyzed sustainable protocol has enabled access to variety of beta-enaminone derivatives in moderate to excellent yields (61-96) in comparatively short reaction time periods (2-3 h). The catalyst was found to be very stable under the reaction conditions and easily recovered from reaction mixture by filtration and recycled for at least ten times without significant loss in its catalytic efficiency./p/abstract_text