Cu-catalyzed direct C–H bond functionalization: a regioselective protocol to 5-aryl thiazolo[3,2-b]-1,2,4-triazoles
作者:Zengyang Xie、Xiaojun Zhu、Yangfan Guan、Dunru Zhu、Hongwen Hu、Chen Lin、Yi Pan、Juli Jiang、Leyong Wang
DOI:10.1039/c2ob27326h
日期:——
An efficient, regioselective C-5 arylation of thiazolo[3,2-b]-1,2,4-triazoles catalyzed by a simple copper catalyst was developed. This arylation proceeded smoothly and tolerated a variety of functional groups (44 examples). A wide range of functionalized thiazolo[3,2-b]-1,2,4-triazole derivatives were obtained in high yields (up to 99% yield). Possible catalytic cycles of the arylation were also discussed.
在一种简单的铜催化剂催化下,开发出了一种高效、具有区域选择性的噻唑并[3,2-b]-1,2,4-三唑 C-5 芳基化反应。这种芳基化反应进行顺利,并可容忍多种官能团(44 个实例)。研究人员获得了多种官能化的噻唑并[3,2-b]-1,2,4-三唑衍生物,而且收率很高(高达 99%)。此外,还讨论了可能的芳基化催化循环。