Access to Multisubstituted 2(5<i>H</i>)-Furanones Using Hydrogen Bonding-Promoted Ring-Closing Metathesis and Polyamine Workup
作者:Kai Tan、Huan Yan、Pengbo Lu、Yuehui Liu、Ruigeng Ji、Zhongxian Liu、Ya-Min Li、Fu-Chao Yu、Yuehai Shen
DOI:10.1021/acs.joc.8b03293
日期:2019.3.15
Structurally complex 2(5H)-furanones are potentially challenging targets for ring-closing metathesis (RCM). A hydrogen bonding-guided RCM strategy was developed in this study to provide 3-substituted and 3,4-disubstituted 2(5H)-furanones in moderate to high yields with broad functional group tolerance. A workup procedure using ethylenediamine-derived polyamines such as tetraethylenepentylamine was
结构复杂的2(5 H)呋喃酮可能是具有挑战性的闭环复分解(RCM)靶标。在这项研究中开发了氢键引导的RCM策略,以中等至高收率提供3-取代的和3,4-二取代的2(5 H)-呋喃酮,且具有宽泛的官能团耐受性。还建立了使用乙二胺衍生的多胺(例如四亚乙基戊胺)的后处理程序,以有效去除产品中的Ru残留物。