Azoxy dyes and copper complexes thereof

Details Azoxy dyes and copper complexes thereof Azoxy dyes and copper complexes thereof

2005-06-07

2005-06-07

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Azoxy

C534S570000, C534S572000

Reexamination Certificate

active

06903197

ABSTRACT:
Azoxy dyes of the general formula I in the form of the free acidwheren is 0 or 1, eachR1is selected from the group consisting of methoxy, hydroxyl and carboxyl, eachR2is selected from the group consisting of carboxyl, amino, C1-C4-alkylamino, allylamino, benzylamino and methoxycarbonylmethylamino, and the phenyl rings A may additionally be substituted by C1-C8-alkyl, unsubstituted or methyl- or halogen-substituted phenyl, hydroxyl, amino, nitro, halogen, carboxyl, N-benzylcarbamoyl, unsubstituted or nitro-, halogen-, C1-C4-alkoxy- or acetoxy-substituted phenylcarbamoyl and naphthylcarbamoyl or be benzofused,their copper complexes, a process for preparing the copper complex dyes, azoxy dyes of the formula I in their partially or completely deacylated form, their copper complexes, colorants comprising these azoxy dyes and/or their copper complexes and also their use for dyeing and printing natural or synthetic substrates.

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