functionalities and valuable building blocks commonly utilized in organic synthesis. Their cross-coupling for the synthesis of useful isolable ketenimines remains an unsolved challenge in synthetic chemistry. Herein, we report a general method for the preparation of ketenimines via a palladium-catalyzed cross-coupling of easily accessible diazo compounds with isocyanides. The reaction benefits from the
重氮化合物和异
氰化物是有机合成中常用的反应性官能团和有价值的结构单元。它们用于合成有用的可分离酮
亚胺的交叉偶联在合成
化学中仍未解决。在本文中,我们报告了通过
钯催化的易偶合重氮化合物与
异氰酸酯的交叉偶联制备酮
亚胺的一般方法。该反应得益于使用容易获得的起始原料,宽的底物范围,高的官能团耐受性和产物的高产率,并且所得酮
亚胺适合于进一步的官能化。实验结果和DFT计算清楚地证实了Pd(II)-
异氰酸酯络合物作为活性催化物质的初始形成,