Total Synthesis of (−)-Chiloscyphone, Sesquiterpenoid Isolated from the Liverwort. Absolute Configuration of (−)-Chiloscyphone and (+)-Chiloscypholone
作者:Motoo Tori、Takeshi Hasebe、Yoshinori Asakawa
DOI:10.1246/bcsj.63.1706
日期:1990.6
The absolute configurations of (−)-chiloscyphone and (+)-chiloscypholone isolatedfrom the liverwort Chiloscyphus polyanthos and C. pallescens respectively, have been determined by the total synthesis of the optically active compound. The 1,4-addition of vinylmagnesium bromide to 3,4-dimethyl-2-cyclohexenone in the presence of copper(I) bromide-dimethyl sulfide complex and the subsequent aldol condensation