Author/Authors :
Jia، نويسنده , , Jianhuan and Jiang، نويسنده , , Chenglin and Zhang، نويسنده , , Xiaojing and Jiang، نويسنده , , Yongwen and Ma، نويسنده , , Dawei، نويسنده ,
Abstract :
A number of substituted 2-pyridin-2-yl-1H-benzoimidazoles and 2-(1H-imidazol-2-yl)pyridines were screened for promoting CuI-catalyzed hydroxylation of aryl bromides, which led to the discovery of the combination of CuI and 5-bromo-2-(1H-imidazol-2-yl)pyridine as an effective catalytic system for this transformation. Both electron-rich and electronic-deficient aryl bromides could be converted into the corresponding substituted phenols in good to excellent yields.