Nitration of phthalic acid and phthalic anhydride using nitric acid
    11.
    发明授权
    Nitration of phthalic acid and phthalic anhydride using nitric acid 失效
    使用硝酸对邻苯二甲酸和邻苯二甲酸酐进行硝化

    公开(公告)号:US5155234A

    公开(公告)日:1992-10-13

    申请号:US700934

    申请日:1991-05-13

    Applicant: Roy R. Odle

    Inventor: Roy R. Odle

    CPC classification number: C07C201/08 C07D307/89

    Abstract: A process for the preparation of nitrophthalic acid by the nitration of phthalic acid and/or phthalic anhydride using only nitric acid, said nitric acid having a concentration of at least about 95% by weight, and then recovering the nitrophthalic acid formed from the nitric acid solution.

    Abstract translation: 通过仅使用硝酸硝化邻苯二甲酸和/或邻苯二甲酸酐制备硝基邻苯二甲酸的方法,所述硝酸浓度为至少约95重量%,然后回收由硝酸形成的硝基邻苯二甲酸 解。

    Method for making N-substituted nitrophthalimides
    15.
    发明授权
    Method for making N-substituted nitrophthalimides 失效
    制备N-取代的硝基邻苯二甲酰亚胺的方法

    公开(公告)号:US4902809A

    公开(公告)日:1990-02-20

    申请号:US917926

    申请日:1986-10-10

    CPC classification number: C07D209/48

    Abstract: A process for preparing N-alkyl substituted nitrophthalimide by the nitration of N-alkyl substituted phthalimide using only nitric acid, said nitric acid having a concentration of at least about 95%, and then recovering N-alkyl nitrophthalimide from the nitric acid solution.

    Abstract translation: 通过仅使用硝酸硝化N-烷基取代的邻苯二甲酰亚胺制备N-烷基取代的硝基邻苯二甲酰亚胺的方法,所述硝酸的浓度为至少约95%,然后从硝酸溶液中回收N-烷基硝基邻苯二甲酰亚胺。

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