Production of cyclopentenones by enzyme resolution
    3.
    发明授权
    Production of cyclopentenones by enzyme resolution 失效
    通过酶分解制备环戊烯酮

    公开(公告)号:US4957867A

    公开(公告)日:1990-09-18

    申请号:US055362

    申请日:1987-05-29

    IPC分类号: C12P7/42 C12P7/62

    CPC分类号: C12P7/42 C12P7/62

    摘要: A process for preparing an optically active cyclopentenone of the formula: ##STR1## wherein R is a hydrogen atom or a lower alkyl group and n is an integer of 4 to 8, which comprises contacting a dl-cyclopentenone ester of the formula: ##STR2## wherein R and n are each as defined above and R' is a lower alkyl group optionally substituted with halogen on an enzyme having a capability of hydrolyzing selectively either one of the d- or l-form isomer in the dl-cyclopentenone ester (II) in an aqueous medium for asymmetric hydrolysis.

    摘要翻译: 一种制备下式的光学活性环戊烯酮的方法:其中R是氢原子或低级烷基,n是4至8的整数,其包括使下式的dl-环戊烯酮与式 (II)其中R和n各自如上所定义,R'是任选被卤素取代的低级烷基,该酶具有选择性地水解d-或l-型异构体中的任一种的能力 dl-环戊烯酮酯(II)在不溶性水解的水性介质中。