An enyne is an organic compound containing a C=C double bond (alkene) and a C≡C triple bond (alkyne). [1] It is called a conjugated enyne when the double and triple bonds are conjugated.

分子间的反应称为交叉烯炔复分解（Cross-Enyne Metathesis），而分子内反应称为闭环烯炔复分解（Ring-Closing Enyne Metathesis，RCEYM）。 烯炔复分解，或所谓的环异构化反应，首先报道了使用钯（II）和 铂（II）盐，并且在机理上不同于金属卡宾介导的途径。 由于 钌卡宾 是目前在烯烃复分解和烯炔键重组中的首选催化剂，因此我们将重点介绍这一类催化剂。 钌卡宾是可商购的，可耐受许多官能团，并且在不断开发新的催化剂。 在引发步骤中，稳定的催化剂经历环加 …

2023年10月16日 · Here we demonstrate that enynes are competent proxies for styrenes, thereby mitigating the recurrent need for aryl substituents, and enabling highly versatile homopropargylic difluorides to be...

The Enyne Metathesis is a ruthenium-catalyzed bond reorganization reaction between alkynes and alkenes to produce 1,3-dienes. The intermolecular process is called Cross-Enyne Metathesis, whereas intramolecular reactions are referred as Ring-Closing Enyne Metathesis (RCEYM).

2014年10月24日 · 烯烃-炔烃之间的复分解反应用于合成1,3-二烯的合成方法。 通常该反应使用Grubbs第一代or第二代催化剂进行催化反应。 由于该反应是结合再重排的形式所以原子经济性可以达到惊人的100%，是十分优异的反应之一。 与烯烃复分解以及炔烃复分解反应一样， 分子内闭环烯炔复分解 同样也是十分有用的反应。 此类反应一般在乙烯气体下进行反应。 虽然对于分子间的交叉复分解反应也同样适用，但是其中化学选择性・位置选择性・几何异构等诸多问题目前来 …

2017年1月19日 · 在铑催化剂作用下烯炔化合物可以发生环化异构化反应，此反应被称作Zhang enyne cycloisomerization。 该反应可以方便的实现烯烃和炔烃分子内的不对称环化，具有很好的区域选择性以及立体选择性，高效地构筑一系列五元环化合物。

2005年4月27日 · The alkyne insertion step and the cycloreversion of 2-vinyl ruthenacyclobutanes feature comparable predicted overall barriers in intermolecular enyne metathesis. For intramolecular enyne metathesis, a noncyclic alkene fragment of the enyne substrate is first incorporated into the Grubbs catalyst by an alkene metathesis reaction.

An enyne is a compound that exhibits a spectrum similar to a diene and is characterized by a shoulder at approximately 235 mμ in its spectrum. It is often distinguished by its infrared and n.m.r. spectra as well. You might find these chapters and articles relevant to this topic.

2025年1月10日 · A synergistic photoredox/cobalt/chromium triple catalysis system for regioselective, enantioselective, and diastereoselective 1,4-hydrocarbonation of readily available 1,3-enyne precursors was explored, providing a modular synthetic platform for various trisubstituted axially chiral allenes bearing an extra central chirality.

Enynes are versatile and readily accessible substrates that can undergo a variety of reactions to yield densely functionalized, enantioenriched products. In this perspective, we review copper-catalyzed transformations of enynes, such as boro- and hydrofunctionalizations, copper-mediated radical difunctionalizations, and cyclizations.