Photoredox/Ti Dual‐Catalyzed Dehydroxylation of Cyclobutanone Oximes for γ‐Cyanoalkyl Radical Generation: Access to Cyanoalkyl‐Substituted Oxoindolines
作者:Weidong Yuan、Anling Qu、Yan Li、Huaigui Li、Kang Chen、Yingguang Zhu
DOI:10.1002/adsc.202200827
日期:2022.11.22
In this work, we have established a photoredox/Ti dual-catalyzed dehydroxylation of cyclobutanone oximes. The resulting γ-cyanoalkyl radicals undergo a cascade radical addition/cyclization with N-acrylamides to afford cyanoalkyl substituted oxoindolines under mild conditions. This reaction also exhibits broad substrate scope and good functional group tolerance. Furthermore, it is applicable to late-stage
在这项工作中,我们建立了环丁酮肟的光氧化还原/Ti 双催化脱羟基反应。所得 γ-氰基烷基自由基与N-丙烯酰胺发生级联自由基加成/环化,在温和条件下得到氰基烷基取代的氧代二氢吲哚。该反应还表现出广泛的底物范围和良好的官能团耐受性。此外,它适用于复杂分子的后期功能化和克级合成,这说明了它在有机合成中的潜在价值。