Copper(I)-Catalyzed Three-Component Coupling of<i>N</i>-Tosylhydrazones, Alkynes and Azides: Synthesis of Trisubstituted 1,2,3-Triazoles
作者:Zhikun Zhang、Qi Zhou、Fei Ye、Ying Xia、Guojiao Wu、Mohammad Lokman Hossain、Yan Zhang、Jianbo Wang
DOI:10.1002/adsc.201500377
日期:2015.7.6
The copper(I)‐catalyzed three‐component reaction of N‐tosylhydrazones, terminal alkynes and azides has been realized in an efficient and regioselective manner. This reaction constitutes a convenient method for the synthesis of 1,4,5‐trisubstituted 1,2,3‐triazoles from simple starting substrates. Mechanistically, the reaction involves the trapping of the copper(I) triazolide intermediate to form a copper
N-甲苯磺酰hydr,末端炔烃和叠氮化物在铜(I)催化下的三组分反应已经以高效且区域选择性的方式实现。该反应构成了从简单的起始底物合成1,4,5-三取代的1,2,3-三唑的便捷方法。从机理上讲,该反应涉及捕获三氮杂铜(I)中间体以形成卡宾铜并随后迁移插入和质子化。