| 摘要 |
A process for the manufacture of 1,4-diamino anthraquinone or quaternized -1,4-diamino-anthraquinone; and by reacting alpha -nitro-anthraquinone with an amine of the formula <IMAGE> to give 1-aminoanthraquinone (B), halogenating, preferably brominating, the compound (B) to give 1-amino-4-halogeno- or 1-amino-2,4-dihalogeno-anthraquinone (C), condensing the compound (C) with a diamine of the formula <IMAGE> or with an amine of the formula HN-R3R7 to give 1,4-diamino-anthraquinone (D) and optionally subsequently quaternizing the compound (D) to give a quaternized anthraquinone compound which process comprises carrying out the reaction from A to E or A to D in one single operation without isolation of the intermediates.
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