Disperse dyes from 5-amino-4-halo-3-methylisothiazoles

Details Disperse dyes from 5-amino-4-halo-3-methylisothiazoles Disperse dyes from 5-amino-4-halo-3-methylisothiazoles

1981-04-16

1983-02-22

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 2922

Patent

active

043747680

ABSTRACT:
Disclosed are monoazo dyes derived from diazotized 5-amino-4-halo-3-methylisothiazoles and m-acylaminoaniline couplers. These dyes impart scarlet and red shades on nylon and polyester fibers and exhibit good fastness properties. The dyes are represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are each selected from lower alkyl, cycloalkyl, substituted cycloalkyl, or lower alkyl substituted with phenyl, cyano, sulfonamido, carboxamido, alkoxy, hydroxy, or an imide radical; R.sub.3 is lower alkyl, lower alkyl substituted as above, phenyl, or trifluoromethyl; and X is chlorine or bromine.

REFERENCES:
patent: 3657215 (1972-04-01), Weaver et al.
patent: 4079050 (1978-03-01), Baird et al.

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