Bicyclic tetrahydrofuran lactone derivatives and process for the preparation thereof
    1.
    发明申请
    Bicyclic tetrahydrofuran lactone derivatives and process for the preparation thereof 失效
    双环四氢呋喃内酯衍生物及其制备方法

    公开(公告)号:US20070010679A1

    公开(公告)日:2007-01-11

    申请号:US11303125

    申请日:2005-12-15

    IPC分类号: C07D493/02

    CPC分类号: C07D493/02

    摘要: The present invention relates to bicyclic tetrahydrofuran lactone derivatives of Formula (1) and a preparation method thereof, and particularly it relates to a process of preparing compounds of Formula (1) by performing an intramolecular cyclization of tetrahydrofuran-allenic acid derivatives in the presence of a phenyl halide, a palladium catalyst and a base: wherein n is 1 or 2, and R is phenyl optionally substituted with C1-C6 alkyl, C1-C6 alkoxy, hydroxyl or C1-C6 hydroxyalkyl group.

    摘要翻译: 本发明涉及式(1)的双环四氢呋喃内酯衍生物及其制备方法,特别涉及通过在四氢呋喃 - 异丙酸衍生物的存在下进行分子内环化制备式(1)化合物的方法, 苯基卤化物,钯催化剂和碱:其中n为1或2,R为任选被C 1 -C 6烷基取代的苯基,C 1 -C 6烷基, C 1 -C 6烷氧基,羟基或C 1 -C 6羟烷基。