Palladium-Catalyzed Markovnikov Hydroaminocarbonylation of 1,1-Disubstituted and 1,1,2-Trisubstituted Alkenes for Formation of Amides with Quaternary Carbon
作者:Hui-Yi Yang、Ya-Hong Yao、Ming Chen、Zhi-Hui Ren、Zheng-Hui Guan
DOI:10.1021/jacs.1c03454
日期:2021.5.19
Hydroaminocarbonylation of alkenes is one of the most promising yet challenging methods for the synthesis of amides. Herein, we reported the development of a novel and effective Pd-catalyzed Markovnikov hydroaminocarbonylation of 1,1-disubstituted or 1,1,2-trisubstituted alkenes with aniline hydrochloride salts to afford amides bearing an α quaternary carbon. The reaction makes use of readily available
烯烃的氢氨基羰基化是合成酰胺最有前途但最具挑战性的方法之一。在此,我们报道了一种新型且有效的 Pd 催化 Markovnikov 氢氨基羰基化反应的 1,1-二取代或 1,1,2-三取代烯烃与苯胺盐酸盐的反应,以提供带有 α 季碳的酰胺。该反应利用容易获得的起始材料,耐受范围广泛的官能团,并为各种带有 α 季碳的酰胺提供了一种简便而直接的方法。机理研究表明该反应通过氢化钯途径进行。氢化钯和 CO 插入是可逆的,氨解可能是限速步骤。