Production of 1-amino-4-hydroxyanthraquinones substituted in the 2- and/or 3-positions
    1.
    发明授权
    Production of 1-amino-4-hydroxyanthraquinones substituted in the 2- and/or 3-positions 失效
    在2-和/或3-位取代的1-氨基-4-羟基蒽醌的制备

    公开(公告)号:US3880892A

    公开(公告)日:1975-04-29

    申请号:US31547374

    申请日:1974-12-15

    CPC分类号: C09B1/503

    摘要: Production of 1-amino-4-hydroxyanthraquinones, which can be substituted in the 2- and 3-positions by carboxylic acid, carboxylic ester or alkyl groups or chlorine or bromine, by heating 3''-nitrobenzoyl-benzoic acids, which can be substituted in the 4''- and 5''-positions, in sulfuric acid or oleum in the presence of boric acid, boric acid esters, boron trihalides or their complex compounds to temperatures between about 120* and 200*C. The reaction products are dyes or intermediates for valuable disperse dyes.

    摘要翻译: 通过加热可以被取代的3'-硝基苯甲酰基 - 苯甲酸,可以通过羧酸,羧酸酯或烷基或氯或溴在2-和3-位上被取代的1-氨基-4-羟基蒽醌的制备 在4'-和5'-位,在硫酸或发烟硫酸中,在硼酸,硼酸酯,三卤化硼或其配合物存在下,温度在约120℃和200℃之间。反应产物是染料或 有价值的分散染料的中间体。