Manufacture of 3-aminobenzoylbenzoic acids
    1.
    发明授权
    Manufacture of 3-aminobenzoylbenzoic acids 失效
    3-氨基苯甲酰基苯甲酸的制备

    公开(公告)号:US3919303A

    公开(公告)日:1975-11-11

    申请号:US45315174

    申请日:1974-03-20

    Applicant: BASF AG

    CPC classification number: C07D233/78

    Abstract: Improvement in the process for the manufacture of 3aminobenzoylbenzoic acids by catalytic reduction of the 3-nitro compounds, the improvement consisting in the reduction of the aqueous alkali metal salt solution of the 3-nitro compound in the presence of boric acid, its alkali metal or ammonium salts or mixtures thereof and in the presence of Raney nickel or nobel metal catalysts using hydrogen at atmospheric or slightly elevated pressure. The corresponding 3-aminobenzoylbenzoic acids are obtained in high yield.

    Abstract translation: 通过3-硝基化合物的催化还原制备3-氨基苯甲酰基苯甲酸的方法的改进,其中包括在硼酸,碱的存在下还原3-硝基化合物的碱金属盐水溶液 金属或铵盐或其混合物,并且在阮内镍或诺贝尔金属催化剂存在下,在大气压或略高的压力下使用氢。 以高收率得到相应的3-氨基苯甲酰基苯甲酸。

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