Process for the preparation of 3-aryl-benzofuranones
    8.
    发明授权
    Process for the preparation of 3-aryl-benzofuranones 失效
    制备3-芳基 - 苯并呋喃酮的方法

    公开(公告)号:US06417358B1

    公开(公告)日:2002-07-09

    申请号:US09720442

    申请日:2000-12-22

    IPC分类号: C07D22112

    CPC分类号: C07D307/83 C07C49/603

    摘要: Process for the preparation of compounds of formula (I), wherein the general symbols are as defined in claim 1, which process comprises reacting a compound of formula (V), wherein the general symbols are as defined in claim 1, with carbon monoxide in the presence of a catalyst.

    摘要翻译: 制备式(I)化合物的方法,其中一般符号如权利要求1所定义,该方法包括使式(Ⅴ)化合物(其中通式如权利要求1所定义)与一氧化碳反应, 催化剂的存在。