Copper‐Catalyzed Aerobic Oxidative CH Functionalization of Substituted Pyridines: Synthesis of Imidazopyridine Derivatives
作者:Jipan Yu、Yunhe Jin、Hao Zhang、Xiaobo Yang、Hua Fu
DOI:10.1002/chem.201302737
日期:2013.12.2
practical method for the synthesis of imidazopyridine derivatives has been developed through the copper‐catalyzed aerobic oxidative CH functionalization of substituted pyridines with N‐(alkylidene)‐4H‐1,2,4‐triazol‐4‐amines. The procedure occurs by cleavage of the NN bond in the N‐(alkylidene)‐4H‐1,2,4‐triazol‐4‐amines and activation of an aryl CH bond in the substituted pyridines. This is the first example
一种新型的,有效的,实用的方法为咪唑并吡啶衍生物的合成已经通过铜催化氧化有氧下显影 ħ取代吡啶与官能化ñ - (亚烷基)-4- ħ -1,2,4-三唑-4-胺。该程序通过N的切割发生 N键在Ñ(亚烷基)-4 - ħ -1,2,4-三唑-4-胺和活化的芳基C的在取代的吡啶H键。这是通过使用吡啶作为由过渡金属催化的C中的基板咪唑并吡啶衍生物的制备的第一个例子H功能化。该方法应为合成其他氮杂环化合物提供新颖有效的策略。