Aerobic Benzylic C(sp<sup>3</sup>)–H Bond Oxygenations Catalyzed by NBS under Visible Light Irradiation
作者:Taiqiang Ye、Yuzheng Li、Yanni Ma、Shenpeng Tan、Feng Li
DOI:10.1021/acs.joc.3c02284
日期:2024.1.5
An efficient photocatalytic oxidation of benzylic C(sp3)–H bonds to ketones, esters, and amides has been developed using NBS as a metal-free photocatalyst and O2 as an oxidant. A variety of synthetically and biologically valuable compounds are assembled in moderate to excellent yields. The synthetic utility of this approach has been demonstrated by gram-scale experiments. A possible free radical mechanism