Method for preparing 1,4-diaminoanthraquinones and intermediates thereof
    5.
    发明授权
    Method for preparing 1,4-diaminoanthraquinones and intermediates thereof 失效
    1,4-二氨基蒽醌的制备方法及其中间体

    公开(公告)号:US4661293A

    公开(公告)日:1987-04-28

    申请号:US868884

    申请日:1986-05-23

    CPC classification number: C09B1/201

    Abstract: Aminoanthraquinones are generally useful as dyes and coloring agents. But known methods of synthesizing unsymmetrically substituted 1,4-diaminoanthraquinones are tedious and complex. A simple and efficient method is provided for preparing 1,4-diaminoanthraquinones, particularly unsymmetrically substituted 1,4-diaminoanthraquinones, by means of novel monoamino-monotosyl-anthraquinones.

    Abstract translation: 氨基蒽醌通常可用作染料和着色剂。 但是合成不对称取代的1,4-二氨基蒽醌的已知方法是繁琐而复杂的。 提供了一种简单有效的方法,通过新的单氨基单甲酰基蒽醌制备1,4-二氨基蒽醌,特别是不对称取代的1,4-二氨基蒽醌。

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