作者:Miryam Pastor、Marie Vayer、Harald Weinstabl、Nuno Maulide
DOI:10.1021/acs.joc.1c02616
日期:2022.1.7
Herein, we present a general electrochemical method to access unsymmetrical 3,3-disubstituted oxindoles by direct C–H functionalization where the oxindole fragment behaves as an electrophile. This Umpolung approach does not rely on stoichiometric oxidants and proceeds under mild, environmentally benign conditions. Importantly, it enables the functionalization of these scaffolds through C–O, and by
在这里,我们提出了一种通用的电化学方法,通过直接 C-H 官能化来获得不对称的 3,3-二取代的羟吲哚,其中羟吲哚片段表现为亲电体。这种 Umpolung 方法不依赖于化学计量氧化剂,并且在温和、环境友好的条件下进行。重要的是,它能够通过 C-O 对这些支架进行功能化,并扩展到 C-C 甚至 C-N 键的形成。