Process for preparing hydroxybenzocyclobutenes
    10.
    发明授权
    Process for preparing hydroxybenzocyclobutenes 失效
    制备羟基苯甲酸的方法

    公开(公告)号:US5227536A

    公开(公告)日:1993-07-13

    申请号:US922651

    申请日:1992-07-30

    CPC分类号: C07C37/02 C07C2102/06

    摘要: A process for preparing a 3- or 4-hydroxybenzocyclobutene comprises reacting a 3- or 4-halogenzocyclobutene reactant with an alkali metal hydroxide by heating in an aqueous alcohol medium at a temperature from about 50.degree. C. to a temperature at which dimerization or oligomerization of a benzocyclobutene reactant or product is a significant side reaction, in the presence of a metal-containing catalyst, for a time sufficient to convert the halobenzocyclobutene reactant to the hydroxybenzocyclobutene product.

    摘要翻译: 制备3-或4-羟基苯并环丁烯的方法包括使3-或4-卤代环丁烯反应物与碱金属氢氧化物在约50℃的温度下在含水醇介质中加热至二聚或低聚 苯并环丁烯反应物或产物是在含金属的催化剂存在下足够将卤代苯并环丁烯反应物转化为羟基苯并环丁烯产物的时间的显着副反应。