<b>Nickel-Catalyzed Intermolecular Reductive Coupling of Styrene and Its Derivatives with Imines Using Methanol as a Reductant</b>
作者:Biao Wang、Tianze Zhang、Li-Jun Xiao、Qi-Lin Zhou
DOI:10.1021/acscatal.3c02019
日期:2023.7.7
Catalytic reductive coupling of alkenes with imines has emerged as a powerful tool for amine synthesis via C–C bond formation with the aid of a reductant. However, many of these processes require the use of activated alkenes or hydrosilanes as reductants. Here, we report a nickel-catalyzed intermolecular reductive coupling of styrenes with imines utilizing methanol as a reductant. The key to the success
烯烃与亚胺的催化还原偶联已成为在还原剂的帮助下通过 C-C 键形成胺合成的强大工具。然而,许多这些过程需要使用活化烯烃或氢硅烷作为还原剂。在这里,我们报道了利用甲醇作为还原剂的镍催化苯乙烯与亚胺的分子间还原偶联。反应成功的关键是MeOLi作为添加剂的引入,它促进了氮杂镍环中间体的开环,并有利于氢化物从甲氧基转移到镍。该途径涉及饱和氮杂镍环的还原转化,能够实现烯烃与亚胺的高度线性选择性还原偶联。