作者:Fan Wang、Yuwen Tang、Xiang Li、Jingtian Chen、Jingyue Yang
DOI:10.1021/acs.orglett.2c02756
日期:2022.10.14
The generation of alkyl radicals by deoxygenation of unactivated ethers under visible light catalysis is a hitherto unmet challenge. Herein, we report a visible light-induced deoxygenation of pyridyl ethers via formation of their pyridinium salts. The generated benzylic radicals further react with allyl/alkenyl sulfones to provide a series of coupling products in good to moderate yields. This process
在可见光催化下通过未活化醚的脱氧产生烷基自由基是迄今为止尚未解决的挑战。在此,我们报告了通过形成吡啶鎓盐的可见光诱导的吡啶基醚脱氧。生成的苄基自由基进一步与烯丙基/烯基砜反应,以良好至中等的产率提供一系列偶联产物。建议该过程经历一个还原淬火循环,该循环已通过化学、光学和电学实验进行了阐明。