New dyestuffs of the anthraquinone series
    5.
    发明授权
    New dyestuffs of the anthraquinone series 失效
    新型蒽醌系列染料

    公开(公告)号:US2972622A

    公开(公告)日:1961-02-21

    申请号:US76642258

    申请日:1958-10-10

    Applicant: CIBA LTD

    Inventor: PAUL GROSSMANN

    CPC classification number: D06P1/20 C09B1/20 C09B1/503 C09B1/545

    Abstract: The invention comprises dyestuffs of the general formula where X is oxygen or sulphur and alk is an alkylene group, and a process for making them by reacting a compound of the formula with a compound of the formula Z-alk-Aryl, where one of the substituents Z and Y is halogen or aryloxy and the other is hydroxy or mercapto. When Y is aryloxy, the 1-amino-2-aryloxy-4-oxyanthraquinone may be made by reacting 1-amino-2-bromo-4-oxy-anthraquinone with a phenol in the presence of alkali. Examples are given. The dyestuffs colour hydrophobic textile materials such as polyester fibres bluish-red and yellowish-red shades.

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