Remote Allylation of Unactivated C(sp<sup>3</sup>)–H Bonds Triggered by Photogenerated Amidyl Radicals
作者:Bin Xu、Uttam K. Tambar
DOI:10.1021/acscatal.9b00563
日期:2019.5.3
The allylation reaction is a highly versatile transformation in chemical synthesis. While many elegant direct C(sp2)–H allylation reactions have been developed, the direct allylation of unactivated C(sp3)–H bonds is underdeveloped. By applying photoredox catalysis and a [1,5]-HAT process, herein we report a direct allylation of unactivated C(sp3)–H bonds. This photocatalyzed transformation is tolerant
烯丙基化反应是化学合成中高度通用的转化。尽管已经开发出许多优雅的直接C(sp 2)-H烯丙基化反应,但未活化的C(sp 3)-H键的直接烯丙基化仍未开发。通过应用光氧化还原催化和[1,5] -HAT过程,在此我们报道了未活化的C(sp 3)-H键的直接烯丙基化。这种光催化的转化耐受酰胺和烯丙基氯化物底物中的几个官能团。以良好的产率和高的δ-选择性获得了各种烯丙基取代的酰胺产物。