A palladium-catalyzed construction of enantiomerically pure α-methylene-γ-butyrolactones. Enantiospecific synthesis of both enantiomers of methylenolactocin
作者:Guoxin Zhu、Xiyan Lu
DOI:10.1016/0957-4166(95)00096-8
日期:1995.4
Opticallyactive β,γ-disubstituted-α-methylene-γ-butyrolactones were synthesized by palladium(II)-catalyzed cyclization reactions of homochiral allylic 2-alkynoates. The reaction was applied to the totalsynthesis of methylenolactocin in both enantiomeric forms.