Azo dye having a 3-cyano- or 3-carbamoyl-2,6-diaminopyridine cou

Details Azo dye having a 3-cyano- or 3-carbamoyl-2,6-diaminopyridine cou Azo dye having a 3-cyano- or 3-carbamoyl-2,6-diaminopyridine cou

1979-06-21

1984-01-03

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260205, 260206, 260207, 2602071, C09B 31153, D06P 104, D06P 116, D06P 354

Patent

active

044241542

ABSTRACT:
A disazo dye derived from a pyridine coupling component and having the general formula ##STR1## where X is fluorine, chlorine, bromine, methyl, trifluoromethyl, methoxy, cyano, nitro, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, a carboxylic acid ester group of 2 to 11 carbon atoms, carbamoyl or C.sub.1 -C.sub.8 -N-monosubstituted or -N,N-disubstituted carbamoyl or sulfamoyl,

REFERENCES:
patent: 3907769 (1975-09-01), Dehnert et al.
patent: 3998802 (1976-12-01), Dehnert et al.
patent: 4016152 (1977-04-01), Dehnert et al.
patent: 4042578 (1977-08-01), Dehnert et al.
patent: 4128545 (1978-12-01), Dehnert et al.
patent: 4146535 (1979-03-01), Dehnert et al.

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