Abstract

A novel, facial, highly effective gallium oxide (Ga₂O₃) nanocatalyst was synthesized and characterized by FT-IR, X-ray diffraction pattern (XRD), Scanning electron microscope (SEM), and Energy-dispersive X-ray spectroscopy (EDAX) analysis. The resulting gallium oxide (Ga₂O₃) nanomaterial has been successfully used as a catalyst for condensation of various aldehydes, dimedone, ammonium acetate, and ethyl acetoacetate under ethanol condition to yield polyhydroquinoline derivatives via a one-pot four-component Hantzsch condensation reaction. The products were investigated by IR, NMR, and mass spectral techniques. The desired catalyst was recycled and reused without any considerable changes in the yield.

摘要

合成了一种新型的面部高效氧化镓（Ga ₂ O ₃）纳米催化剂，并通过FT-IR、X射线衍射图（XRD）、扫描电子显微镜（SEM）和能量色散X射线光谱进行了表征（ EDAX) 分析。所得氧化镓（Ga ₂ O ₃）纳米材料已成功地用作各种醛、双甲酮、乙酸铵和乙酰乙酸乙酯在乙醇条件下缩合的催化剂，通过一锅四组分Hantzsch缩合反应生成聚氢喹啉衍生物. 通过 IR、NMR 和质谱技术对产物进行了研究。期望的催化剂被回收和再利用，收率没有任何显着变化。