Process for preparing 2-hydroxynaphthalenecarboxylic acids
    1.
    发明授权
    Process for preparing 2-hydroxynaphthalenecarboxylic acids 失效
    2-羟基萘羧酸的制备方法

    公开(公告)号:US4239913A

    公开(公告)日:1980-12-16

    申请号:US933902

    申请日:1978-08-15

    IPC分类号: C07C51/15

    CPC分类号: C07C51/15

    摘要: A process for preparing 2-hydroxynaphthalenecarboxylic acids which comprises reacting a liquid mixture of 1 mole of an alkali .beta.-naphtholate, 0.05 to 3 moles of .beta.-naphthol, and 0.1 to 5 times the weight of the alkali .beta.-naphtholate of light oil or kerosene with carbon dioxide under a carbon dioxide pressure of not more than 15 kg/cm.sup.2.G at a temperature of at least 180.degree. C.

    摘要翻译: 一种制备2-羟基萘甲酸的方法,其包括使1摩尔碱式β-萘酚的0.05摩尔β-萘酚的液体混合物与轻油碱性β-萘磺酸盐的重量的0.1至5倍反应,或 在二氧化碳压力为不超过15kg / cm 2·G的二氧化碳的煤油中,在至少180℃的温度下