NiSO<sub>4</sub>-catalyzed C–H activation/C–S cross-coupling of 1,2,3-triazole N-oxides with thiols
作者:Jiayi Zhu、Yu Chen、Feng Lin、Baoshuang Wang、Zhengwang Chen、Liangxian Liu
DOI:10.1039/c4ob02586e
日期:——
An efficient nickel-catalyzed protocol for C–S cross-coupling through the direct functionalization of 2-aryl-1,2,3-triazole N-oxide C–H bonds with aryl or alkyl thiols, or diphenyl disulfide has been developed. The targeted N+–O− bond cleavage can be observed during the reaction, and thus obviates the need to use an additional deoxygenation step. This new protocol for the preparation of thiolated 2-aryl-1
通过直接将2-芳基-1,2,3-三唑N-氧化物C-H键与芳基或烷基硫醇或二苯基二硫键直接官能化,开发了一种有效的镍催化的CS交叉偶联方案。靶向Ñ + -O -可在反应过程中观察到的键断裂,从而避免了需要使用额外的脱氧步骤。这种用于制备硫醇化的2-芳基-1,2,3-三唑的新方法看来具有高的选择性,温和的条件和广泛的底物范围,可提供良好的收率。