4-Sulphomethyl substituted hydroxypyridone azo dyestuffs

Details 4-Sulphomethyl substituted hydroxypyridone azo dyestuffs 4-Sulphomethyl substituted hydroxypyridone azo dyestuffs

1976-10-29

1978-05-30

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260146R, 260146D, 260146T, 260154, 260155, 260156, 2602948R, C09B 2936, C09B 6208, C09B 6224, C09B 6250

Patent

active

040923088

ABSTRACT:
Azo compounds of the formula ##STR1## wherein R represents a hydrogen atom, an alkyl or aryl radical, R' represents a hydrogen or halogen atom, a cyano, carboxylic amide, alkylsulphonyl, arylsulphonyl, nitro, nitroso, amino, or acylamino group, and D represents the radical of a diazo component, are valuable dyestuffs for the dyeing of textile materials.

REFERENCES:
patent: 2857372 (1958-10-01), Straley et al.
patent: 3109840 (1963-11-01), Beffa et al.
patent: 3619112 (1971-11-01), Berrie et al.
patent: 3640674 (1972-02-01), Berrie et al.
patent: 3657214 (1972-04-01), Berrie et al.

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