solvent-free double lamellar hydroxide-catalysed synthesis of β-ene ketones and esters

In this study, znal2o4@zno was prepared by the co-precipitation method and characterization was carried out by different analytical techniques such as x-ray diffraction (xrd), energy dispersive x-ray spectroscopy edax, scanning electron microscopy sem, and a fourier transform infrared spectroscopy (ftir) technique. the znal2o4@zno has been found to be an extremely efficient catalyst for the preparation of β-enamine and β-enaminoester derivatives from β-di-carbonyl compounds and amines. this approach is environmentally friendly and cost-effective, and simple setup and easily reused. moreover, the developed method can be effectively utilized for the synthesis of β-enamine and β-enaminoester derivatives, to achieve high yields percent in a short time.