Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1989-06-05
1990-08-07
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534638, 534642, 534560, 534582, C09B 62085, C09B 6251, D06P 1382, D06P 1384
Patent
active
049469479
ABSTRACT:
Water-soluble azo compounds of the general formula D-N=N-K in which D is a radical of the general formula ##STR1## in which Y denotes the vinyl group or is an ethyl group which is substituted in the .beta.-position by a substituent which can be eliminated by means of alkali, R stands for hydrogen, hydroxy, lower alkyl, lower alkoxy, carboxy or halogen, n is the number zero or 1, M is hydrogen or a salt-forming metal atom, and the free bond from the benzene ring to the azo groups is in the meta- or para-position to the nitrogen atom of the benzotriazole radical, and in which K is a radical of a water-soluble coupling component, such as, for example, from the series comprising the aminobenzenes, phenols, naphthols, aminonaphthols, acylaminonaphthols, pyrazolones, aminopyrazoles, acetoacetylarylides and hydroxypyridones.
The water-soluble azo compounds have fiber-reactive dye properties and dye carboxamide and/or hydroxyl group-containing materials, such as, for example, wool, synthetic nylon fibers and, in particular, cellulose fibers, in fast shades. ##STR2## in which R, M and n have one of the meanings mentioned in claims 14 and the two primary amino groups are bound in the meta- or para-position to one another on the benzene ring, reducing the nitro group in the resultant compound, and reacting in said resultant compound the both primary amino groups with a diazotizing agent to give the diazonium compound, and, if desired, converting the .beta.-hydroxyethyl group standing for the moiety Y', into another Y' group.
REFERENCES:
patent: 4556707 (1985-12-01), Henk
patent: 4701523 (1987-10-01), Segal et al.
Hussong Kurt
Springer Hartmut
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