2-Amino-cinnamoylthiophene acid azo dye compounds having an anil

Details 2-Amino-cinnamoylthiophene acid azo dye compounds having an anil 2-Amino-cinnamoylthiophene acid azo dye compounds having an anil

1984-01-23

1985-11-19

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534588, 534591, 534593, 534728, 534781, 534783, 534784, 534794, C09B 29033, C09B 2909, C09B 2936, C09B 2944

Patent

active

045543488

ABSTRACT:
Disclosed are new acid azo dyes prepared from 2-amino-cinnamoylthiophene compounds. These dyes give bright red to blue shades, for example, on polyester, cellulose acetate, wool and particularly polyamide fibers and exhibit improvements in one or more of such properties as bathochromic shift, fastness to light, sublimation, chlorine, heat, ozone, gas, perspiration, crock, and wash, build, pH stability, bloom resistance, depth of shade, leveling, strike rate, migration, and the like. The dyes have the general formula ##STR1## wherein: R.sup.14 is H or alkyl; R is a substituent selected, for example, from alkyl, substituted alkyl, hydroxy, alkoxy, halogen, nitro, alkoxycarbonyl, alkanoyloxy, alkanoyl, cyano, alkylamino, and dialkylamino; C.sup.1 represents an aniline, tetrahydroquinoline or benzomorpholine coupling component which may be extensively substituted; each of R.sup.12 and R.sup.13 is selected from H, alkyl, alkoxy, acyl, halogen, and the like; and at least one of the water solubilizing groups, --SO.sub.3 M or --OSO.sub.3 M is present in the dye molecule.

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