Process for the resolution of ethyl
4,4,4-trifluoro-3(R)-hydroxybutanoate using lipase from candida
    4.
    发明授权
    Process for the resolution of ethyl 4,4,4-trifluoro-3(R)-hydroxybutanoate using lipase from candida 失效
    使用来自念珠菌的脂肪酶分离4,4,4-三氟-3(R) - 羟基丁酸乙酯的方法

    公开(公告)号:US5716841A

    公开(公告)日:1998-02-10

    申请号:US628166

    申请日:1996-04-05

    CPC分类号: C12P7/62 C12P41/005

    摘要: A process for the preparation of ethyl 4,4,4-trifluoro-3(R)-hydroxybutanoate, wherein the ester functional group of the (S) enantiomer of ethyl (.+-.)-4,4,4-trifluoro-3-hydroxybutanoate which comprises (R) and (S) is selectively hydrolysed in aqueous medium, by means of a lipase, and the non-hydrolysed (R) enantiomer is then extracted and used in the preparation of 4,4,4-trifluoro-1,3(R)-butanediol.

    摘要翻译: 制备4,4,4-三氟-3(+ E,非R + EE) - 羟基丁酸乙酯的方法,其中((S)对映异构体的(S)对映异构体的酯官能团 包含(+ E,不是R + EE)和(+ E,未S + EE)的4-三氟-3-羟基丁酸酯通过脂肪酶在水性介质中选择性水解,并且未水解的(+ E ,非R + EE)对映异构体,然后用于制备4,4,4-三氟-1,3(+ E,非R + EE) - 丁二醇。