Intermolecular Conjugate Addition of Pyrroloindoline and Furoindoline Radicals to α,β-Unsaturated Enones<i>via</i>Photoredox Catalysis
作者:Shupeng Zhou、Deliang Zhang、Yu Sun、Ruofan Li、Wenhao Zhang、Ang Li
DOI:10.1002/adsc.201400702
日期:2014.9.15
We have developed an intermolecular conjugate addition of 3a‐pyrroloindoline/furoindoline radicals to α,β‐unsaturated enones, through visible‐light photoredox catalysis. Ir(ppy)2(dtbbpy) PF6 was found to be an effective promoter to initiate this reaction from readily available 3a‐bromopyrroloindolines/furoindolines. This method was exploited to prepare a series of indole terpenoid‐like compounds of
我们已经开发了通过可见光光氧化还原催化将3a-吡咯并吲哚啉/呋喃二氢吲哚分子间共轭加成到α,β-不饱和烯酮上的方法。发现Ir(ppy)2(dtbbpy)PF 6是一种有效的启动子,可从容易获得的3a-溴吡咯烷二氢呋喃/呋喃二氢吲哚引发该反应。该方法被用于制备一系列具有潜在生物学意义的吲哚类萜样化合物。