Synergistic Visible-Light Photoredox/Nickel-Catalyzed Synthesis of Aliphatic Ketones via N–C Cleavage of Imides
作者:Javad Amani、Rauful Alam、Shorouk Badir、Gary A. Molander
DOI:10.1021/acs.orglett.7b00989
日期:2017.5.5
An electrophilic, imide-based, visible-light-promoted photoredox/Ni-catalyzed cross-coupling reaction for the synthesis of aliphatic ketones has been developed. This protocol proceeds through N–C(O) bond activation, made possible through the lower activation energy for metal insertion into this bond due to delocalization of the lone pair of electrons on the nitrogen by electron-withdrawing groups.
开发了一种用于合成脂肪酮的亲电、酰亚胺基、可见光促进的光氧化还原/镍催化交叉偶联反应。该协议通过 N-C(O) 键激活进行,由于吸电子基团使氮上的孤对电子离域,金属插入该键的激活能较低,从而使金属插入该键成为可能。交叉偶联反应操作简单且温和,在环境温度下进行,并且对多种官能团表现出耐受性。