A four-component reaction of aromatic aldehydes, ethyl cyanoacetate, arylamines, and dimethyl acetylenedicarboxylate has been achieved in the presence of nanosized oxides (ZnO NPs, CuO NPs, CeO2 NPs, SnO NPs, MgO NPs and CaO NPs) as highly effective heterogeneous catalysts to produce polysubstituted dihydropyridines. Extraordinarily, the best results were obtained using CeO2 nanoparticles as an efficient
在纳米氧化物(ZnO NP,CuO NP,CeO 2 NP,SnO NP,MgO NP和CaO NP)存在下,芳族醛,
氰基
乙酸乙酯,芳基胺和乙酰二
甲酸二甲酯的四组分反应已经实现。生产多取代的
二氢吡啶的催化剂。特别地,使用CeO 2纳米颗粒作为有效催化剂获得了最佳结果。该方法具有几个优点,包括温和的反应条件,适用于广泛的底物,催化剂的可重复使用性和最小的催化剂负载量。