Azo dyes containing an N-2-pyridine-2,4-dihydroxybenzamide coupl

Details Azo dyes containing an N-2-pyridine-2,4-dihydroxybenzamide coupl Azo dyes containing an N-2-pyridine-2,4-dihydroxybenzamide coupl

1976-06-04

1978-10-03

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260146R, 260295AM, 8 41D, 8 42D, C09B 2922, C09B 2936

Patent

active

041183835

ABSTRACT:
Azo compounds of the formula ##STR1## are provided where A is a diazotiable aromatic hydrocarbon. In particular, A is an optionally substituted benzene or naphthalene nucleus and E is an optionally substituted pyridine nucleus. The compounds provide dyeings on synthetic fibers with excellent dyeing and fastness properties.

REFERENCES:
patent: 2128256 (1938-08-01), Krzikalla et al.
patent: 2365265 (1944-12-01), Gross
patent: 3617179 (1971-11-01), Lewis

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