Aniline azo dyes from 1,2,3,4-tetrahydroquinoline and 2,3-dihydr

Details Aniline azo dyes from 1,2,3,4-tetrahydroquinoline and 2,3-dihydr Aniline azo dyes from 1,2,3,4-tetrahydroquinoline and 2,3-dihydr

1979-11-14

1981-12-15

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260156, 260157, 260205, 260206, 260207, 2602071, 2602073, 260458C, 544104, 546159, C09B 2901, C09B 2936, C09B 2944, D06P 306

Patent

active

043058744

ABSTRACT:
Disclosed are novel dyes which comprise aniline diazo moieties and certain aromatic amine couplers having sulfate groups. These dyes are substantially water soluble and are particularly useful for dyeing polyamide, wool and the like and exhibit, for example, excellent dyeability properties and fastness to light and gas. The dyes correspond to the general formula: ##STR1## wherein ring A may be unsubstituted or substituted with 1-3 of a variety of groups which themselves may be substituted such as alkyl, alkoxy, chloro, bromo, iodo, trifluoromethyl, thiocyano, cyano, phenylazo, acyl, and the like; R.sub.1 is a group such as alkyl, alkoxy, halogen, acylamido, alkylthio, and aryloxy; m is 0, 1, or 2; R.sub.2 represents the linking groups necessary to form a 1,2,3,4-tetrahydroquinoline or a 2,3-dihydro-1,4-benzoxazine structure, which may be substituted, in combination with the phenylene ring; Z is a linking group such as alkylene; and M is H.sup.+, Na.sup.+, K.sup.+, or NH.sub.4.sup.+.

REFERENCES:
patent: 2231021 (1941-02-01), McNally et al.
patent: 2249749 (1941-07-01), Dickey et al.
patent: 2249774 (1941-07-01), McNally et al.
patent: 2251947 (1941-08-01), McNally et al.
patent: 2387987 (1945-10-01), Felix et al.
patent: 2432393 (1947-12-01), Dickey et al.

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