Process for converting .alpha.-acyl-substituted lactones to
申请人:Henkel Corporation
公开号:US05416224A1
公开(公告)日:1995-05-16
A convenient stereoselective process for the preparation of .alpha.-alkylidene-substituted-.gamma.-butyrolactones and .delta.-valerolactones is provided. The process involves reacting an .alpha.-acyl lactone, an aldehyde, and an alkali metal hydroxide in an inert diluent at an elevated temperature while removing water.
Process for the preparation of alpha-alkyl lactones
申请人:Henkel Corporation
公开号:US05231192A1
公开(公告)日:1993-07-27
Process for the preparation of .alpha.-alkyl lactones by the steps of first reacting an .alpha.-acyl lactone, an aldehyde, and an alkali metal hydroxide together to form an .alpha.-alkylidene lactone, and then hydrogenating the .alpha.-alkylidene lactone.