A process for preparing optically active epoxy alcohol which is characterised by the steps of adding carboxylic anhydride to racemic epoxy alcohol of formula 1 in the presence of a hydrolase in an organic solvent, esterifying (-)-form of the epoxy alcohol preferentially to give an epoxy ester of formula 2, separating optically active epoxy ester of formula 2 from optically active epoxy alcohol of formula 3 to yield optically active epoxy alcohol of formula 4, so that epoxy alcohol of formula 1 in high purity can be obtained easily and safely at ordinary temperature.
一种制备光学活性环氧醇的工艺,其特征在于:在有机溶剂中,在
水解酶存在下,向式 1 的外消旋环氧醇中加入
羧酸酐,优先酯化 (-)- 形式的环氧醇,得到式 2 的环氧酯、将光学活性的式 2 环氧酯与光学活性的式 3 环氧醇分离,得到光学活性的式 4 环氧醇,从而在常温下轻松安全地获得高纯度的式 1 环氧醇。