Furan‐Based
<i>o‐</i>
Quinodimethanes by Gold‐Catalyzed Dehydrogenative Heterocyclization of 2‐(1‐Alkynyl)‐2‐alken‐1‐ones: A Modular Entry to 2,3‐Furan‐Fused Carbocycles
作者:Liejin Zhou、Mingrui Zhang、Wenbo Li、Junliang Zhang
DOI:10.1002/anie.201403709
日期:2014.6.16
strategy for in situ generation of furan‐based ortho‐quinodimethanes (o‐QDMs) by the gold(I)‐mediated dehydrogenative heterocyclization of 2‐(1‐alkynyl)‐2‐alken‐1‐ones in the presence of pyridine N‐oxide under mild reaction conditions was developed. These in situ furan‐based o‐QDMs were trapped by electron‐deficient olefins and alkynes, thus furnishing various 2,3‐furan‐fused carbocycles in good yields
在吡啶N存在下,金(I)介导的2-(1-炔基)-2-烯键-1-酮的氢脱氢杂环化反应原位生成呋喃基邻喹啉二甲烷(o -QDMs)的策略在温和的反应条件下产生了氧化物。这些原位基于呋喃的o - QDM被缺电子的烯烃和炔烃捕获,从而以高收率提供了各种具有高非对映选择性和区域选择性的各种2,3-呋喃融合的碳环。