Ruthenium-Catalyzed Cycloisomerization of <i>cis</i>-3-En-1-ynes to Cyclopentadiene and Related Derivatives through a 1,5-Sigmatropic Hydrogen Shift of Ruthenium−Vinylidene Intermediates
作者:Swarup Datta、Arjan Odedra、Rai-Shung Liu
DOI:10.1021/ja053674o
日期:2005.8.24
cycloisomerization of unactivated cis-3-en-1-ynes, which produces substituted cyclopentadiene and related derivatives. The mechanism of this cyclization is proposed to involve a [1,5]-sigmatropic hydrogen shift of ruthenium-vinylidene intermediates on the basis of deuterium-labeling experiments.
我们报告了一种新的钌催化的未活化 cis-3-en-1-yne 的环异构化,它产生取代的环戊二烯和相关衍生物。基于氘标记实验,提出这种环化的机制涉及钌-亚乙烯基中间体的 [1,5]-σ-σ 氢位移。