A Desulfurative Strategy for the Generation of Alkyl Radicals Enabled by Visible‐Light Photoredox Catalysis
作者:Fei Xue、Falu Wang、Jiazhen Liu、Jiamei Di、Qi Liao、Huifang Lu、Min Zhu、Liping He、Huan He、Dan Zhang、Hao Song、Xiao‐Yu Liu、Yong Qin
DOI:10.1002/anie.201802710
日期:2018.5.28
a new desulfurative method for generating primary, secondary, and tertiary alkyl radicals through visible‐light photoredox catalysis. A process that involves the generation of N‐centered radicals from sulfinamide intermediates, followed by subsequent fragmentation, is critical to forming the corresponding alkyl radical species. This strategy has been successfully applied to conjugate addition reactions
在这里,我们提出了一种通过可见光光氧化还原催化生成伯,仲和叔烷基自由基的新脱硫方法。一个过程涉及从亚磺酰胺中间体生成N中心自由基,然后进行后续裂解,这对于形成相应的烷基自由基至关重要。此策略已成功应用于特征温和的反应条件,广泛的底物范围(> 60个实例)和良好的官能团耐受性的共轭加成反应。