Water-soluble azo compounds suitable as fibre-reactive dyestuffs
    5.
    发明授权
    Water-soluble azo compounds suitable as fibre-reactive dyestuffs 失效
    适用于纤维反应性试验的水溶性AZO化合物

    公开(公告)号:US5216138A

    公开(公告)日:1993-06-01

    申请号:US800551

    申请日:1991-11-27

    Applicant: Jorg Dannheim

    Inventor: Jorg Dannheim

    Abstract: There are described water soluble azo compounds conforming to the formula (1)D--N.dbd.N--K (1)where D is a radical of the formula (2), (2a) or (2b) ##STR1##where Y is a substituent which is eliminable by alkali to form a vinyl group, Y.sup.2 has one of the meanings of Y or is hydroxyl, X is chlorine or bromine, and R is hydrogen, lower alkyl, phenyl or halogen, and K is a radical of a singly couplable coupling component which may additionally contain an azo group, or the radical of a doubly couplable coupling component.The compounds of the formula (1) have fiber-reactive properties and are very highly suitable for use as dyes for dyeing hydroxy- and/or carboxamido-containing material, in particular fiber material, for example cellulose-fiber materials, wool and synthetic polyamide fibers, in strong, fast shades.There are also described novel starting compounds of the formulae (7), (7a) and (7b) ##STR2##where Y.sup.2, X and R are each as defined above, x is zero or 2 and W is nitro or amino. The aniline compounds of the formula (7) obtainable from the compounds of the formula (7) where W is nitro by reduction of the nitro group can be used as diazo component for preparing the azo compounds of the formula (1).

    Abstract translation: 描述符合式(1)的水溶性偶氮化合物DN = NK(1)其中D是式(2),(2a​​)或(2b)的基团。 (2b)其中Y是可以被碱除去以形成乙烯基的取代基,Y2具有Y或羟基的含义之一,X是氯或溴,R是氢,低级烷基,苯基 或卤素,并且K是可以另外含有偶氮基团的单一可耦合偶合组分的基团,或双重可耦合组分的基团。 式(1)的化合物具有纤维反应性,并且非常适合用作用于染色含羟基和/或羧酰氨基的材料的染料,特别是纤维材料,例如纤维素纤维材料,羊毛和合成聚酰胺 纤维,强壮,快速的色调。 还描述了式(7),(7a)和(7b)的新起始化合物。其中Y2,X和R各自如上所定义。 ,x为0或2,W为硝基或氨基。 作为用于制备式(1)的偶氮化合物的重氮组分,可以使用由式(7)的化合物得到的式(7)的苯胺化合物,其中W是硝基还原硝基。

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