General routes to 4-methyl-2-substituted-furans: a total synthesis of pleraplysillin-2, a metabolite of the sponge, Pleraplysilla spinifera
作者:David W. Knight、David C. Rustidge
DOI:10.1039/p19810000679
日期:——
A general approach to 4-methyl-2-substituted-furans is described in which 4-methyl-2-furyl-lithium is the key intermediate. Using this method, pleraplysillin-2, a sesquiterpenoid ester from the sponge Pleraplysilla spinifera, has been synthesised. An alternative, less efficient, route to this type of furan, via acyclic keto-epoxides, is also discussed.
描述了一种4-甲基-2-取代的呋喃的通用方法,其中4-甲基-2-呋喃基锂是关键中间体。使用这种方法,合成了pleraplysillin-2,一种来自海绵棘球藻的倍半萜酸酯。还讨论了通过无环酮-环氧化物制得这种呋喃的替代方法,效率较低。