Azo dyes from substituted 3-amino-pyridines with aniline, tetrah

Details Azo dyes from substituted 3-amino-pyridines with aniline, tetrah Azo dyes from substituted 3-amino-pyridines with aniline, tetrah

1983-02-17

1984-12-11

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

534733, 534770, 534771, 534772, 534773, C09B 29036, C09B 29085, C09B 2909, C09B 2936

Patent

active

044877196

ABSTRACT:
This invention concerns azo dyes having the general formula ##STR1## and their preparations in which X, Y and Z are H or any of a variety of substituents, provided that at least one of X and Y must always be a substituent selected from --CN, --NO.sub.2, --CHO, and other selected groups specified herein, and A is the residue of an aniline, tetrahydroquinoline or benzomorpholine type disperse dye coupling component. These dyes which are unexpectedly non-photochromic produce red to blue shades on polyester fibers and exhibit one or more improved properties such as dyeability, dye exhaustion rate, light fastness, non-blooming, pH stability, build, fastness to ozone and nitrogen oxide, crock and wash fastness, migration, transfer, and pH stability on polyester and other fibers including cellulose ester.

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patent: 4025301 (1977-05-01), Lang
Wagner et al, "Synthetic Organic Chemistry", pp. 787, 788, 801 and 802 (1953).
House et al, J. Org. Chem., vol. 34, pp. 3626 to 3627, (1927).

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