Azo dyestuffs containing an .alpha.-phenylamino isobutyric acid

Details Azo dyestuffs containing an .alpha.-phenylamino isobutyric acid Azo dyestuffs containing an .alpha.-phenylamino isobutyric acid

1975-11-07

1978-05-02

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260152, 260156, 260157, 260158, 260187, 260196, 260201, 260202, 2602071, 260208, 260465D, 560 43, C09B 2908, C09B 2926

Patent

active

040874206

ABSTRACT:
A water-insoluble azo dyestuff of the formula ##STR1## wherein D is an optionally substituted aromatic or heteroaromatic radical free of ionic groups; X is hydrogen or optionally substituted alkoxy; Y is hydrogen, optionally substituted alkyl, alkenyl, cycloalkyl, phenyl, hetaryl, alkoxy or phenoxy or --NHR.sup.4 wherein R.sup.4 is alkyl, alkenyl, cycloalkyl, aralkyl or aryl; R.sup.1 and R.sup.2 are hydrogen or alkyl and R.sup.3 is optionally substituted alkyl and its utility in the dyeing and printing of hydrophobic synthetic fibers and films such as polyesters.

REFERENCES:
patent: 2277230 (1942-03-01), Heinrich
patent: 3097198 (1963-07-01), Fishwick et al.
patent: 3268507 (1966-08-01), Kruckenberg
patent: 3359256 (1967-12-01), Mueller et al.
patent: 3544550 (1970-12-01), Anderton et al.
patent: 3553190 (1971-01-01), Anderton et al.
patent: 3558593 (1971-01-01), Lindner et al.
patent: 3637651 (1972-01-01), Baron et al.
patent: 3766164 (1973-10-01), Hahnle et al.

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