申请人:Imperial Chemical Industries PLC
公开号:US04835294A1
公开(公告)日:1989-05-30
Novel substituted dioxanones obtained from (R)-3-hydroxybutyric acid, for example 2,2-dimethoxy-6-methyl-1,3-dioxan-4-one, a method for their preparation and processes using the dioxanones as starting material. The dioxanones can be used in particular as intermediates in the preparation of (S)-4-methyl-.beta.-butyrolactone.
从(R)-3-羟基丁酸获得的替代二氧杂环己酮,例如2,2-二甲氧基-6-甲基-1,3-二氧杂环己-4-酮,以及它们的制备方法和使用二氧杂环己酮作为起始材料的过程。这些二氧杂环己酮可以特别用作(S)-4-甲基-β-丁内酯的制备中间体。