烯烴交叉復分解反應是指兩種端基烯烴在Ru(II)-卡賓(Grubbs Catalyst)催化下，放出乙烯的烯烴復分解反應。從統(tǒng)計學來看，反應應該生成三種可能的幾何異構體，再加上每種異構體各有 E/Z構型，因此共有六種產物。
此反應的選擇性近期得到更進一步的研究，有各種反應實例表明不同反應活性的烯烴都能高產率和高選擇性的反應。
烯烴復分解反應，按照反應過程中分子骨架的變化，可以分為五種情況：開環(huán)復分解、開環(huán)復分解聚合、非環(huán)二烯復分解聚合、關環(huán)復分解以及交叉復分解反應。
在1990年代， Robert H.Grubbs發(fā)現了實用性非常高的催化劑。之后烯烴復分解反應成為有機合成化學里最常用的反應之一。
常見的催化劑：
反應機理：
引發(fā):
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參考文獻
一、https://www.organic-chemistry.org/namedreactions/cross-metathesis.shtm
二、化學空間: https://cn.chem-station.com/reactions/2014/01/%e7%83%af%e7%83%83%e5%a4%8d%e5%88%86%e8%a7%a3%e5%8f%8d%e5%ba%94%ef%bc%88olefin-metathesis%ef%bc%89.html
