Amino benzophenone dye

Details Amino benzophenone dye Amino benzophenone dye

1994-07-27

1996-04-23

Higel, Floyd D.

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

Organic compounds

Azo

534573, 534583, 534642, 534730, 534757, 534764, 534773, 534782, 534784, 534821, 534827, 534836, 534837, 534845, 534851, 534861, 534869, C09B 2942, C09B 31153

Patent

active

055104681

ABSTRACT:
There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridges,
m is 1 or 2,
K is the radical of a coupling component,
Y is hydrogen or arylazo,
one of the two radicals X.sup.1 and X.sup.2 is hydrogen and the other is hydroxysulfonyl,
R.sup.1, R.sup.2 and R.sup.3 are independently of the others hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl, cyclohexyl, phenyl, 2-hydroxy-ethylsulfonyl or C.sub.1 -C.sub.4 -alkoxy or, when m is 1 and Y is hydrogen, one of these substituents can also be the radical of the formula ##STR2## where L.sup.1 is a chemical bond or a bridge member, and X.sup.1, X.sup.2, R.sup.4, K and the ring A are each as defined above, and
R.sup.4 is hydrogen, halogen or C.sub.1 -C.sub.4 -alkoxy,
with the proviso that there is at least one water-solublizing group in the molecule, novel pyridone compounds, a process for preparing disulfonated pyridone compounds, and the use of the novel dyes for dyeing natural or synthetic substrates.

REFERENCES:
patent: 3956265 (1976-05-01), Leng et al.
patent: 4247456 (1981-01-01), Von Brachel et al.
patent: 4772292 (1988-09-01), Hahnke et al.
patent: 5151506 (1992-09-01), Bach et al.
patent: 5153356 (1992-10-01), Lamm et al.
patent: 5380859 (1995-01-01), Lamm et al.

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