| 摘要 |
Water-soluble azo compounds having useful fiber-reactive dye properties conforming to the general formula <IMAGE> in which: A is phenylene which may be substituted by lower alkoxy, lower alkyl, chlorine, sulfo and carboxy, or is a radical of the formula <IMAGE> in which W is a direct bond or a radical of the formula -CH=CH- or -NH-CO-NH- and R* denotes hydrogen, nitro, sulfo, carboxy, methyl, ethyl, methoxy or ethoxy; n is the number zero or 1; B is a radical of the formula <IMAGE> where R is equal to carboxy or carbamoyl; M is hydrogen or an alkali metal; K is a radical of the formula <IMAGE> <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> in which D is phenylene which may be substituted by chlorine, bromine, lower alkyl, lower alkoxy, carboxy and sulfo, or unsubstituted or sulfo substituted naphthylene; R1 is hydrogen, chlorine, lower alkyl or lower alkoxy; R2 is hydrogen or lower alkyl; G is carboxy, methyl or lower carbalkoxy; Y is vinyl, beta -sulfatoethyl or beta -chloroethyl; m is the number zero or 1; Z is alpha - or beta -bromacryloyl or beta -chloropropionyl, beta -chloroethylsulfonylbenzoyl or ( beta -chloroethylsulfonylmethyl)-benzoyl or a radical of the formula <IMAGE> where D and Y have the abovementioned meaning and Hal is equal to chlorine or fluorine. The compounds (1) produce fast dyeings on carboxamido- and/or hydroxy-containing materials, in particular cellulose fibers. On cellulose, fast dyeings are also obtained in a weakly acid to neutral medium, for example together with disperse dyes for dyeing a polyester fiber portion.
|
