Nano CuO-catalyzed C–H functionalization of 1,3-azoles with bromoarenes and bromoalkenes
作者:Wu Zhang、Yujie Tian、Na Zhao、Yuanyuan Wang、Jia Li、Zhenghua Wang
DOI:10.1016/j.tet.2014.04.065
日期:2014.9
Copper oxide catalyzed directC–H arylation and alkenylation of aromatic heterocycles using aryl and alkenyl bromides have been developed and have been applied to the C–H functionalization of a variety of 1,3-azoles like benzoxazole, benzothiazole, 1-methylbenzimidazole, and 1-methylimidazole, with moderate to excellent yields. The best performance has been achieved in the presence of PPh3 when average