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.
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