CuO/ZnO@N-GQDs@NH2 nanocomposite as superior catalyst for the synthesis of pyrimidine-triones

Abstract

CuO / ZnO@N - GQDs@NH2 nanocomposite (copper (II) oxide / zinc oxide @ Nitrogen-doped graphene quantum dots @ aminated) as superior catalyst has been 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 has been characterized by SEM (scanning electron microscope), FT - IR (Fourier-transform 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 prepares several benefits containing green reaction conditions, great yields in concise times, the retrievable of the nanocatalyst and low nanocatalyst loading.

Keywords

• nanocatalyst
• pyrimidines
• one-pot
• nanocomposite
• cuo/zno