β-Alkoxy- and β-alkylthio-αβ-ethylenic esters and ketones are converted in high yield into β-alkyl-αβ-ethylenic esters and into ββ-dialkyl ketones using lithium dialkylcuprate reagents.
β -烷氧基-和β -烷
硫基-α β -ethylenic酯和酮被转化以高产率成β -烷基α β -ethylenic酯和成ββ使用
锂dialkylcuprate试剂二烷基酮。