Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1990-07-31
1992-04-14
Ramsuer, Robert W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534678, 534680, 534682, 534683, 534684, 534685, 534688, C09B 4532, C09B 33044, C09B 3308, C09B 3324, D06P 110
Patent
active
051049791
ABSTRACT:
Polyazo dyes useful for dyeing leather in the free form or as copper, chromium, iron, cobalt or nickel complexes have the formula ##STR1## where m is 0, 1 or 2, n is 0 or 1, p is from 1 to 2, q is from 0 to 1, and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, X, Y and the ring A are each as defined, and may be prepared from aniline derivatives of the formula ##STR2## where m is 0, 1, or 2, n is 0 or 1, and X, R.sup.1, R.sub.2 and R.sup.3 are each as defined.
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El-Ezbawy et al, Chemical Abstracts, vol. 113, No. 78227a (1990).
Hansen Guenter
Schaffer Ortwin
Zeidler Georg
BASF - Aktiengesellschaft
Powers Fiona T.
Ramsuer Robert W.
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