铂催化的 1,4-烯炔环异构化反应：通过 sp3 杂化 C-H 键的活化。
Platinum-catalyzed cycloisomerization of 1,4-enynes via activation of a sp3-hybridized C-H bond.
机构信息
Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan (ROC).
出版信息
Chem Commun (Camb). 2010 Jun 21;46(23):4115-7. doi: 10.1039/c0cc00071j. Epub 2010 Apr 29.
PMID:20428593
Abstract
We report the cycloisomerization of 1-alkenyl-1-alkynylcyclopropanes to cyclooctatriene products catalyzed by PtCl(2)/CO in hot xylene. In contrast to the reported enyne cycloisomerization, this 1,4-enyne cycloisomerization proceeds via an atypical addition of the allyl carbon to the alkyne in a 6-endo-dig cyclization.
摘要
我们报告了在热二甲苯中由 PtCl(2)/CO 催化的 1-烯基-1-炔基环丙烷的环异构化为环辛三烯产物。与报道的烯炔环异构化反应不同，这种 1,4-烯炔环异构化反应通过典型的烯丙基碳与炔烃的 6-endo-dig 环化中的加成反应进行。
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