Heterocyclic substituted azo dyestuff

Details Heterocyclic substituted azo dyestuff Heterocyclic substituted azo dyestuff

1976-02-13

1977-03-29

Curtis, Allen B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260158, 260306, 2603066R, C07D27704, C09B 2936, C09B 4906, C07D23302

Patent

active

040148645

ABSTRACT:
An azo compound that is free from sulphonic acid groups of the formula ##STR1## in which D represents the radical of a diazo component, A represents an optionally substituted, 1,4-phenylene radical, R.sub.1 represents an optionally substituted alkyl radical, R.sub.2 represents an optionally substituted alkylene radical, Alk represents an alkylene radical of 1-4 carbon atoms and Y represents an imino group, a sulphur atom or an oxygen atom and ring B may be substituted by bromine, fluorine, chlorine atoms, cyano, nitro, trifluoromethyl, alkyl, alkoxy, acylamino, acyloxy, carbalkoxy, optionally N-alkylated carbamoyl and optionally N-alkylated sulphamoyl groups and by a benzo residue. The compounds dye polyester fibres in yellow, red or blue shades with good fastness.

REFERENCES:
patent: 3246004 (1966-04-01), Hall et al.
patent: 3592807 (1971-07-01), VON Brachel et al.
patent: 3595852 (1971-07-01), Hahn et al.
patent: 3840517 (1974-10-01), Weaver et al.
patent: 3971771 (1976-07-01), Angliken et al.

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