Bleaching and dyeing; fluid treatment and chemical modification – Reactive dye composition – process – or product – Alkylene sulfato – halotriazine – halodiazine,...
Patent
1981-11-25
1983-01-25
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Reactive dye composition, process, or product
Alkylene sulfato, halotriazine, halodiazine,...
8681, 8686, 260146R, 260149, 260146T, C09B 6250, C09B 5000
Patent
active
043701450
ABSTRACT:
New copper-complex formazan compounds of the general formula: ##STR1## in which A is a phenylene or naphthylene radical which can be substituted by halogen, nitro, lower alkyl, lower alkoxy, lower alkylsulfonyl, phenylsulfonyl and optionally alkylated sulfonamide groups and can also be substituted by the radical Z, defined below, B is a straight-chain or branched-chain alkyl group or alkenyl group, which can be substituted by an optionally substituted phenyl radical, or is a phenyl or naphthyl radical, which can be substituted by halogen, lower alkyl, lower alkoxy and lower carbalkoxy, or is the radical or a furan, thiophene, pyrrole, imidazole, indole, pyrazole, pyridine, pyrimidine, quinoline or benzimidazole, it being possible for B likewise to be substituted by the group Z, defined below, Z denotes a group which confers solubility in water, such as the carboxyl group or sulfo group, one to three of which are bonded to A and/or B, Cu is a copper atom, X denotes an oxygen atom or a carbonyloxy group and is bonded to A in the ortho-position relative to the nitrogen atom, Y represents the vinyl or .beta.-thiosulfatoethyl group and M denotes a hydrogen atom or the equivalent of a metal. The new copper-complex formazan compounds can be prepared in a manner which is in itself customary, for example by reacting an aromatic hydrazone compound of the general formula: ##STR2## in which A, B, X and Z have the abovementioned meaning, with the diazonium compound of an aromatic amine of the general formula: ##STR3## in which M and Y have the abovementioned meaning, and with an agent which donates copper. The new copper-complex formazan compounds have valuable dyestuff properties and are particularly suitable as fiber-reactive dye-stuffs for dyeing, for example, cellulose fiber materials, wool and synthetic polyamide fibers, on which they give strong reddish-tinged to greenish-tinged blue or clear blue dyeings with good fastness to light and wet processing.
REFERENCES:
patent: 2662075 (1953-12-01), Brooks
patent: 3068219 (1962-12-01), Beffa et al.
patent: 3926942 (1975-12-01), Yelland
patent: 4158003 (1979-06-01), Bitterlin et al.
patent: 4255325 (1981-03-01), Harms et al.
Hoyer Ernst
Schwaiger Gunther
Clingman A. Lionel
Hoechst Aktiengesellschaft
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