[EN] PROCESS FOR PREPARING (R)-3,4-EPOXY-1-BUTANOL<br/>[FR] PROCEDE DE PREPARATION DE (R)-3,4-EPOXY-1-BUTANOL
申请人:SAMSUNG FINE CHEMICALS CO LTD
公开号:WO2003097624A1
公开(公告)日:2003-11-27
The present invention relates to a novel process for preparing (R)-3,4-epoxy-1-butanol in particular, a process for preparing (R)-3,4-epoxy-1-butanol with relatively high yield and in a cost-effective manner, wherein (S)-3-alkyl or arylsulfonyloxy-butyrolactone used as a starting material is reduced under a mild condition to give 2-alkyl or arylsulfonyloxy-1,4-butanediol as an intermediate, and the intermediate is then epoxidized in the presence of a base to invert a chiral center.
本发明涉及一种新型制备(R)-3,4-环氧-1-丁醇的方法,特别是一种以相对高产率和具有成本效益的方式制备(R)-3,4-环氧-1-丁醇的方法,其中将(S)-3-烷基或芳基磺酰氧基-丁内酯用作起始物,在温和条件下还原,得到2-烷基或芳基磺酰氧基-1,4-丁二醇作为中间体,然后在碱的存在下将中间体环氧化以翻转手性中心。