HIGHLY STEREOSELECTIVE CONSTRUCTION OF CHIRAL QUATERNARY CARBON: ASYMMETRIC SYNTHESIS OF β,β-DISUBSTITUTED γ-BUTYROLACTONES
作者:Kiyoshi Tomioka、Youn-Sang Cho、Fuminori Sato、Kenji Koga
DOI:10.1246/cl.1981.1621
日期:1981.11.5
Asymmetric synthesis of β, β-disubstituted γ-butyrolactones was carried out in highlystereoselective and predictable way, by means of sequential dialkylation of (S) -γ-trityloxymethyl-γ-butyrolactone followed by lactone carbonyl transposition. Application to the synthesis of spirocyclic compound was also described.
β, β-二取代 γ-丁内酯的不对称合成以高度立体选择性和可预测的方式进行,通过 (S) -γ-三苯甲基氧基甲基-γ-丁内酯的顺序二烷基化,然后内酯羰基转位。还描述了在合成螺环化合物中的应用。