作者:Philip Lenden、David A. Entwistle、Michael C. Willis
DOI:10.1002/anie.201105795
日期:2011.11.4
More rings for your rhodium: Rhodium‐catalyzed intermolecular alkyne hydroacylations deliver γ‐hydroxy‐α,β‐enones, which can be cyclized in situ to deliver di‐ and trisubstituted furans. Functionalization of the intermediates using Heck chemistry allows the formation of regioisomeric furans. The use of an alternative RhI catalyst delivers 1,4‐dicarbonyl compounds and hence pyrroles, thiophenes, and
铑具有更多的环:铑催化的分子间炔烃加氢酰基化可生成γ-羟基-α,β-烯酮,可将其原位环化以生成二取代和三取代的呋喃。使用Heck化学方法对中间体进行功能化可以形成区域异构的呋喃。使用替代的Rh I催化剂可从相同的两种原料中获得1,4-二羰基化合物,从而生成吡咯,噻吩和哒嗪。