cuo/zno@n-gqds@nh2 nanocomposite as superior catalyst for the synthesis of pyrimidine-triones

Cuo/zno@n-gqds@nh2 nanocomposite (copper(ii) oxide/zinc oxide@ nitrogen-doped graphene quantum dots @aminated) as superior catalyst was applied for the synthesis of pyrimidine-trions by three-component reactions of n,n-dimethylbarbituric acid, benzaldehydes and para-methyl aniline or para-methoxy aniline under reflux condition in water. the catalyst was characterized by sem (scanning electron microscope), ft-ir (fouriertransform infrared spectroscopy), xrd (x-ray powder diffraction), tga (thermogravimetric analysis), eds (energy-dispersive x-ray spectroscopy), and xps (x-ray photoelectron spectroscopy). the best results were gained in h2o and we found the convincing results for the synthesis of pyrimidine-trions in the presence of cuo/zno@n-gqds@nh2 nanocomposite (5 mg) under reflux conditions. this technique provides several benefits including green reaction conditions, great yields in concise times, a retrievable nanocatalyst, and low nanocatalyst loading.