Polyazo dyes containing a plurality of hydroxy sulfonyl groups

Details Polyazo dyes containing a plurality of hydroxy sulfonyl groups Polyazo dyes containing a plurality of hydroxy sulfonyl groups

1997-10-28

2000-01-11

Higel, Floyd D.

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

Organic compounds

Azo

534645, 534796, 534807, 534816, 534819, C09B 62533, C09B 3528, C09B 3502, D06P 138

Patent

active

060137754

ABSTRACT:
Polyazo dyes of the formula I ##STR1## where one of the two radicals X.sup.1 and X.sup.2 is hydroxyl and the other is amino,
p and q are each independently of the other 0 or 1,
D.sup.1 and D.sup.2 are each independently of the other a radical of the formula ##STR2## and B is a bridge member are prepared using novel sulfonamide intermediates and are useful as dyes for dyeing natural or synthetic substrates.

REFERENCES:
patent: 2092429 (1937-09-01), Straub et al.
patent: 2154248 (1939-04-01), Northey
patent: 2165484 (1939-07-01), Huismann
patent: 2184515 (1939-12-01), Cliffe
patent: 2258162 (1941-10-01), Northey et al.
patent: 2944050 (1960-07-01), Haubrich et al.
patent: 3210335 (1965-10-01), Zickendraht et al.
patent: 3657218 (1972-04-01), Gnad
patent: 4013634 (1977-03-01), Stryker
patent: 4242258 (1980-12-01), Noll et al.
patent: 4479906 (1984-10-01), Zeidler et al.
patent: 5629410 (1997-05-01), Deitz et al.
Chemical Abstracts, vol. 83, No. 24, Dec. 15, 1975, Columbus, Ohio, US; Abstract No. 195215t, A. Kotone et al.: "Tetrakisazo Dyes" Seite 116; XP002073885 *Zusammenfassung* & JP 50 034 029 A (Sakai Chemical Industry Co., Ltd.) Apr. 2, 1975 *Beispiel 1*.

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