General Method for the Amination of Aryl Halides with Primary and Secondary Alkyl Amines via Nickel Photocatalysis
作者:Geyang Song、Ding-Zhan Nong、Jing-Sheng Li、Gang Li、Wei Zhang、Rui Cao、Chao Wang、Jianliang Xiao、Dong Xue
DOI:10.1021/acs.joc.2c01284
日期:2022.8.5
the coupling of electron-rich and electron-poor aryl halides with both primary and secondary alkyl amines. In this study, it is reported that a Ni(II)-bipyridine complex catalyzes efficient C–N coupling of aryl chlorides and bromides with various primary and secondary alkyl amines under direct excitation with light. Intramolecular C–N coupling is also demonstrated. The feasibility and applicability of
Buchwald-Hartwig C-N 偶联反应被列为药物化学中最常用的 20 种反应之一。Ni基催化剂催化的C-N偶联反应由于其成本远低于钯,并且对反应性较低的芳基氯化物具有更高的反应性,因此受到了广泛关注。然而,到目前为止,似乎还没有通用的、实用的镍催化体系能够使富电子和贫电子芳基卤化物与伯烷基胺和仲烷基胺偶联。在本研究中,据报道,Ni(II)-联吡啶配合物在光的直接激发下催化芳基氯化物和溴化物与各种伯和仲烷基胺的有效 C-N 偶联。还证明了分子内 C-N 耦合。