Facile synthesis of spiro thiazolidinone via cyclic ketones, amines and thioglycolic acid by MCM-41-Schiff base-CuSO4·5H2O
作者:Yonghai Hui、Yongfei Zhang、Yongyue Luo、Jianpeng Li、Yun Wang、Tianming Gao、Jialiang Xia、Sheng Wang、Shiqi Zhang
DOI:10.1007/s11164-020-04283-9
日期:2021.2
Mesoporous MCM-41-supported Schiff base and CuSO4·5H2O (MCM-41@Schiff base-CuSO4·5H2O) catalyzed one-pot three-component condensation of cyclic ketones, amines and thioglycolic acid in toluene. And a series of corresponding spiro thiazolidinone derivatives were obtained in high yields (up to 97%). The synthesized catalyst was characterized via FT-IR, XRD, SEM, TEM and EDS and can be easily recovered
介孔MCM-41负载的席夫碱和CuSO4·5H2O(MCM-41@Schiff base-CuSO4·5H2O)催化环酮、胺和巯基乙酸在甲苯中的一锅三组分缩合反应。并以高收率(高达97%)获得了一系列相应的螺环噻唑烷酮衍生物。合成的催化剂通过 FT-IR、XRD、SEM、TEM 和 EDS 进行了表征,可以通过离心轻松回收并重复使用 10 次,催化活性没有任何变化。此外,放大实验还证明了催化体系对缩合的实用性。可能的机制为研究其他环酮与巯基乙酸的反应铺平了道路。