申请人:Nitto Denko Co., Ltd.
公开号:US05213975A1
公开(公告)日:1993-05-25
This invention relates to the methods of preparing optically active epoxy alcohol which is caracterized by the steps of adding carboxylic anhydride to racemic epoxy alcohol (formula 1) in the presence of a hydrolase in an organic solvent, esterifying (-)-form of the epoxy alcohol preferentially to be epoxy ester (formula 2), separating optically active epoxy ester (formula 2) from optically active epoxy alcohol (formula 3) to yield optically active epoxy alcohol (formula 4), so that epoxy alcohol (formula 1) in high purity can be obtained easily and safely at ordinary temperature. ##STR1##
这项发明涉及制备光学活性环氧醇的方法,其特点是在有机溶剂中向外消旋环氧醇(式1)中加入羧酸酐,并在水解酶的存在下酯化环氧醇的(-)-形式,使其优先生成环氧酯(式2),将光学活性环氧酯(式2)与光学活性环氧醇(式3)分离,得到光学活性环氧醇(式4),从而可以在常温下轻松安全地获得高纯度的环氧醇(式1)。