Development of a Traceless Directing Group: Cp*-Free Cobalt-Catalyzed C–H Activation/Annulations to Access Isoquinolinones
作者:Minghui Liu、Jun-Long Niu、Dandan Yang、Mao-Ping Song
DOI:10.1021/acs.joc.9b03073
日期:2020.3.20
A new traceless directing group, 2-(hydroxymethyl)pyridine, has been reported for the Cp*-free cobalt-catalyzed C-H activation/annulation reaction to synthesize isoquinolinones. The reaction exhibits good functional group tolerance, affording products in good to excellent isolated yields under mild conditions. Notably, the directing group can be removed directly in situ along the catalytic process
据报道,一种新的无痕导向基团2-(羟甲基)吡啶可用于无Cp *的钴催化的CH活化/环化反应,以合成异喹啉酮。该反应表现出良好的官能团耐受性,在温和条件下提供的产物具有良好的分离产率。值得注意的是,可以在催化过程中直接就地除去导向基团。