(±)-Silphinene, a natural angular triquinane has been synthesized, starting from 3,3-dimethyl-methoxycarbonylcyclopropene. The ring A of the skeleton results from the cycloaddition of the cyclopropene with the enamine 1, followed by solvolytic ring cleavage, whereas the ring C is constructed using a Nazarov type cyclization.
从3,3-二甲基-甲氧基羰基环
丙烯开始合成了(±)-Silphinene,这是一种天然的角三喹烷。骨架的环A是由环
丙烯与烯胺1环加成,然后进行溶剂分解的环裂解而形成的,而环C是使用Nazarov型环化反应构建的。