Method for the production of benzophenonen
    7.
    发明申请
    Method for the production of benzophenonen 有权
    二苯甲酮生产方法

    公开(公告)号:US20060009659A1

    公开(公告)日:2006-01-12

    申请号:US10535710

    申请日:2003-12-01

    IPC分类号: C07C45/46

    摘要: A process for preparing benzophenones of the formula I, where X may be chlorine, hydroxyl, methoxy or C1-C6-alkylcarbonyloxy, and Y may be chlorine or bromine, by reacting an acid chloride of the formula II where X and Y are as defined above with 3,4,5-trimethoxytoluene, which comprises carrying out the reaction in the presence of a) an aromatic hydrocarbon as a diluent and b) from 0.01 to 0.2 mol % of an iron catalyst, based on the acid chloride, c) at a temperature between 60° C. and the boiling point of the particular diluent.

    摘要翻译: 制备式I的二苯甲酮的方法,其中X可以是氯,羟基,甲氧基或C 1 -C 6 - 烷基羰氧基,Y可以是氯或溴, 通过使式II的酰氯与其中X和Y如上所定义的酰氯与3,4,5-三甲氧基甲苯反应,其包括在a)芳族烃作为稀释剂存在下进行反应,和b)从0.01至 0.2mol%的铁催化剂,基于酰氯,c)在60℃和特定稀释剂的沸点之间的温度下。