作者:Rui Sun、Shuang-Shuang Ma、Zi-Heng Zhang、Yan-Qiang Zhang、Bao-Hua Xu
DOI:10.1039/d2ob02312a
日期:——
The Ru(dppbsa)-catalyzed reductive amination of ketones with nitroarenes and nitriles using H2 as the environmentally benign hydrogen surrogate is developed in this study. Cross-experiments demonstrated that both reactions are initiated by the reduction of nitroarenes or nitriles to the corresponding amines, followed by condensation with ketones to give imines and thereafter hydrogenation. However
本研究开发了使用 H 2作为环境友好型氢替代物的 Ru(dppbsa) 催化的酮与硝基芳烃和腈的还原胺化反应。交叉实验表明,这两个反应都是通过将硝基芳烃或腈还原成相应的胺,然后与酮缩合得到亚胺,然后氢化来引发的。然而,不能完全排除在硝基芳烃或腈还原过程中形成氨基连接的 Ru 络合物,然后进行原位亲核 C-N 偶联的途径。这种新开发的通用方法具有良好的官能团耐受性,为构建仲胺基序的均相催化剂提供了一个新颖的设计平台。