Herein, we report visible-light-promoted single nickel catalysis to smoothly achieve various C–N couplings of aryl chlorides/bromides and diverse N-nucleophiles with sodium iodide as the activator. Single nickel catalysts play two compatible roles: halogen exchange and C–N coupling, which are critical to successfully obtaining desired coupling products. The catalytic process does not need an exogenous
在此,我们报告了可见光促进的单
镍催化以
碘化钠作为活化剂顺利实现芳基
氯/
溴和多种N-亲核试剂的各种 C-N 偶联。单一
镍催化剂扮演着两个兼容的角色:卤素交换和 C-N 偶联,这对于成功获得所需的偶联产物至关重要。催化过程不需要外源光催化剂,并提供了一种可持续且有效的方法来在温和条件下实现 C-N 偶联。结合紫外-可见和核磁共振分析的实验研究表明,Ni II和 Ni III -卤化物络合物与
碘化物阴离子的卤素交换是产生偶联产物的重要过程。