Photoredox Catalysis: 1,4-Conjugate Addition of <i>N</i>-Methyl Radicals to Electron-Deficient Olefins via Decarboxylation of <i>N</i>-Substituted Acetic Acids
作者:Lakshmaiah Gingipalli、Jeffrey Boerth、David Emmons、Tyler Grebe、Holia Hatoum-Mokdad、Bo Peng、Li Sha、Sharon Tentarelli、Haixia Wang、Ye Wu、XiaoLan Zheng、Scott Edmondson、Ariamala Gopalsamy
DOI:10.1021/acs.orglett.0c00873
日期:2020.5.1
In this report, we describe a new photoredox catalyzed 1,4-conjugate addition of N-substituted acetic acids to electron-deficient olefins via decarboxylative C-C bond formation. This C-C bond formation occurred under mild conditions enabled by visible light irradiation. This transformation facilitated the synthesis of biologically relevant N-substituted heterocyclic structural motifs not readily accessible
在本报告中,我们描述了一种新的光氧化还原催化 1,4-共轭加成 N-取代的乙酸通过脱羧 CC 键形成缺电子烯烃。这种CC键形成发生在可见光照射的温和条件下。这种转化促进了其他方法不易获得的生物学相关的 N 取代杂环结构基序的合成。CC键形成方案应用于弱亲核杂环,如吲哚、吲唑、咪唑和环状酰胺,以形成功能化的药物样小分子。