Magnetic core–shell titanium dioxide nanoparticles (Fe3O4@SiO2@TiO2) were applied for the efficient preparation of 1,2,4,5‐tetrasubstituted imidazole derivatives by the one‐pot multi‐component condensation of benzil with aldehydes, primary amines and ammonium acetate under solvent‐free conditions. The catalyst was synthesized and studied using several techniques including X‐ray diffraction, transmission
磁性核-壳
二氧化钛纳米粒子(Fe 3 O 4 @SiO 2 @TiO 2)用于苯并与醛的单锅多组分缩合反应有效地制备1,2,4,5-四取代的
咪唑衍
生物,
伯胺和
乙酸铵在无溶剂的条件下。使用多种技术合成和研究了该催化剂,包括X射线衍射,透射电子显微镜,场发射扫描电子显微镜和能量色散X射线光谱。版权所有©2016 John Wiley&Sons,Ltd.