Azo dyes derived from 3-amino-2,1-benzisothiazoles and aromatic

Details Azo dyes derived from 3-amino-2,1-benzisothiazoles and aromatic Azo dyes derived from 3-amino-2,1-benzisothiazoles and aromatic

1979-06-01

1981-05-05

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260155, C09B 2922, C09B 6208

Patent

active

042658128

ABSTRACT:
Disclosed are mono azo dyes derived from diazotized 3-amino-2,1-benzisothiazoles and certain aniline, 1,2,3,4-tetrahydroquinoline, and benzomorpholine couplers containing sulfoalkyl groups. These dyes impart fast violet to blue shades on polyamide fibers and have the general formula ##STR1## wherein the Coupler is a derivative of an aniline, tetrahydroquinoline, or benzomorpholine derivative wherein a --Z--SO.sub.3 M group is attached to the nitrogen thereof, R may be hydrogen or one to three substituents such as lower alkyl, lower alkoxy, chlorine, bromine, iodine, sulfamoyl, and substituted sulfamoyl, the coupler ring may contain one or more substituents selected from lower alkyl, lower alkoxy, halogen, acylamido, alkylthio or aryloxy, the remaining hydrogen of the aniline coupler nitrogen may be replaced by a substituent such as lower alkyl, substituted lower alkyl, lower alkenyl, aryl, or cycloalkyl, M is Na.sup.+, K.sup.+, NH.sub.4.sup.+, and Z is a linking group such as ethylene.

REFERENCES:
patent: 3761462 (1973-09-01), Moritz
patent: 3870696 (1975-03-01), Feeman
patent: 4052379 (1977-10-01), Gourley
patent: 4063881 (1977-12-01), Razavi

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