Basic diaminopyridine-(3)-azo dyestuffs

Details Basic diaminopyridine-(3)-azo dyestuffs Basic diaminopyridine-(3)-azo dyestuffs

1975-08-18

1978-01-03

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26046D, 260152, 260154, 260155, 260156, 260205, 260206, 260207, 2602071, 260270R, 2602948G, 2602949, C09B 2936, C09B 4500, D06P 352, D06P 376

Patent

active

040666379

ABSTRACT:
A basic azo dyestuff, which is free form acid groups conferring solubility in water, of the formula ##STR1## wherein two radicals Z represent groups of the formula --NR'R" and one radical Z represents a group of the formula --NR'R", --OR'" or --SR'", wherein R', R", and R'" each represents hydrogen, aryl, cycloalkyl or an aliphatic radical and R' and R" are able to form a ring containing the amino nitrogen and the radicals --NR'R" may be the same or different, R is alkyl, substituted alkyl or cycloalkyl, n is 1 or 2, Y represents a radical of the formula --CN or --CONH.sub.2, and D represents the radical of an aromatic or heterocyclic diazo component, and wherein at least one radical Z and/or D contains a basic, optionally cationic group. These dyestuffs are useful for dyeing and printing synthetic fibers to produce intensive and level dyeings with good fastness to light and general fastness properties.

REFERENCES:
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patent: 3657214 (1972-04-01), Berrie et al.
patent: 3725383 (1973-04-01), Austin et al.
patent: 3899478 (1975-08-01), Fleckenstein et al.
patent: 3950321 (1976-04-01), Dehnert et al.

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