Expeditious and Solvent-Free Nickel-Catalyzed C−H Arylation of Arenes and Indoles
作者:Rahul A. Jagtap、Vineeta Soni、Benudhar Punji
DOI:10.1002/cssc.201700321
日期:2017.5.22
nickel‐catalyzed method for C−H bond arylation of arenes and indoles has been developed, which proceeds expeditiously through chelation assistance. The reaction is highly selective for mono‐arylation and tolerates sensitive and structurally diverse functionalities, such as halides, ethers, amines, indole, pyrrole and carbazole. This reaction represents the first example of a nickel‐catalyzed C−H arylation by monochelate
已经开发出一种有效的无溶剂镍催化的芳烃和吲哚CH键芳基化方法,该方法可通过螯合辅助快速进行。该反应对单芳基化反应具有高度选择性,并且可以耐受敏感的和结构多样的官能团,例如卤化物,醚,胺,吲哚,吡咯和咔唑。该反应代表单螯合物辅助镍催化的CH芳基化的第一个例子,并标志着无溶剂的CH H芳基化的罕见先例。通过各种受控反应,动力学研究和氘标记实验进行的机理研究表明,芳基化反应遵循单个电子转移(SET)途径,该途径涉及限制营业额的CH镍化过程。