作者:Qingzhen Yu、Le'an Hu、Yue Wang、Shasha Zheng、Jianhui Huang
DOI:10.1002/anie.201507100
日期:2015.12.7
Ru‐catalyzed direct CH activation/meta‐bromination of arenes bearing pyridyl, pyrimidyl, and pyrazolyl directing groups has been developed. A series of bromo aryl pyridines and pyrimidines have been synthesized, and further coupling reactions have also been demonstrated for a number of representative functionalized arenes. Preliminary mechanistic studies have revealed that this reaction may proceed through
钌催化的直接Ç ħ激活/元芳烃轴承吡啶基,嘧啶基和吡唑基定位基团的-bromination已经研制成功。已经合成了一系列溴代芳基吡啶和嘧啶,并且对于许多代表性的官能化芳烃也已经证明了进一步的偶联反应。初步的机理研究表明,当使用NBS作为溴源时,该反应可能通过自由基介导的溴化反应进行。这种类型的变换已经用于开辟了新的方向上的基团的非本位关于未来的C金属的官能 ħ激活开发将允许芳族系统的远程官能化。