申请人:E. I. Du Pont de Nemours & Company
公开号:US05254718A1
公开(公告)日:1993-10-19
This invention concerns esters of unsymmetrically 2-substituted glycolic acid dimers, a process for their preparation and their use in the preparation of unsymmetrically 3,6-substituted 1,4-dioxane-2,5-diones.
这项发明涉及非对称2-取代乙二酸二聚物的酯,它们的制备方法以及它们在制备非对称3,6-取代的1,4-二氧杂环己烷-2,5-二酮中的应用。