The Domino Chromone Annulation and a Transient Halogenation-Mediated C–H Alkenylation toward 3-Vinyl Chromones
作者:Leiqing Fu、Zhongrong Xu、Jie-Ping Wan、Yunyun Liu
DOI:10.1021/acs.orglett.0c03548
日期:2020.12.18
Reported in this paper is a step economical method toward the general synthesis of 3-vinyl chromones via the reactions between readily available o-hydroxyphenyl enaminones and various alkenes. The domino C–H alkenylation and chromone annulation of the enaminones are involved, which enables the synthesis of 3-vinyl chromone products using both terminal and internal alkenes via a key process of transient C–H
本文报道的是一种通过经济实用的步骤逐步实现3-乙烯基色酮的合成的方法,该方法是通过容易获得的邻-羟基苯基烯胺酮与各种烯烃之间的反应进行的。涉及烯胺酮的多米诺骨化CHH烯基化和色酮环化,这可以通过瞬态CHH卤化的关键过程使用末端烯烃和内部烯烃合成3-乙烯基色酮产物。