Process for making nitrophthalic anhydrides
    19.
    发明授权
    Process for making nitrophthalic anhydrides 失效
    硝基邻苯二甲酸酐的制备方法

    公开(公告)号:US3887588A

    公开(公告)日:1975-06-03

    申请号:US46801174

    申请日:1974-05-08

    Applicant: GEN ELECTRIC

    CPC classification number: C07C201/12 C07D317/64 Y02P20/582 C07C205/57

    Abstract: Nitrophthalic anhydrides can be obtained by a treatment of phthalic anhydride in concentrated sulfuric acid with concentrated nitric acid and thereafter extracting the formed nitrophthalic anhydrides with methylene chloride.

    Abstract translation: 硝酸邻苯二甲酸酐可以通过用浓硝酸处理浓硫酸中的邻苯二甲酸酐,然后用二氯甲烷萃取形成的硝基邻苯二甲酸酐而获得。

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