Polystyrene resin-supported CuI-cryptand 22 complex: a highly efficient and reusable catalyst for three-component synthesis of 1,4-disubstituted 1,2,3-triazoles under aerobic conditions in water
作者:Barahman Movassagh、Nasrin Rezaei
DOI:10.1016/j.tet.2014.09.092
日期:2014.11
resin-supported copper(I) iodide-cryptand-22 complex (PS–C22–CuI) was synthesized and characterized by FT-IR, EDX, SEM, XPS, and TG-DTA analysis. This complex was found to be a highly active and robust heterogeneous catalyst for either three-component reaction of organic halides, sodium azide, and terminal alkynes, or the reaction of organic azides and alkynes to form 1,4-disubstituted 1,2,3-triazoles in good
合成并通过FT-IR,EDX,SEM,XPS和TG-DTA分析对聚苯乙烯树脂负载的碘化铜-I-cryptand-22铜(PS-C22-CuI)配合物进行表征。已发现该配合物是一种高活性且稳健的非均相催化剂,可用于有机卤化物,叠氮化钠和末端炔烃的三组分反应,或有机叠氮化物和炔烃反应以形成1,4-二取代的1,2,3使用水作为绿色溶剂,在室温下以良好或优异的收率合成-三唑。催化剂不仅可以通过过滤容易地与最终产物分离,而且可以在不显着降低催化活性的情况下重复使用。