Metallized phenyl-azo-naphthol compounds
AssigneeToms River Chemical Corporation
InventorsHans Alfred Stingl, John Elliott
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Abstract
Metallized azo dyes of the formula ##STR1## wherein A is a sulfonyl, sulfonamido or carboxamido group, D is the residue of a phenol or naphthol, E is the residue of acetoacetanilide, a phenyl or naphthyl pyrazolone or the residue of a naphthol and M is a cation. The dyes are suitable for dyeing natural and synthetic polyamides, demonstrating good all-around fastness properties.
Claims5
A compound of the formula ##STR32## wherein B is benzyl or -NRR.sub.1, wherein R is selected from the group consisting of hydrogen, methyl, ethyl, .beta.-cyanoethyl, .beta.-hydroxyethyl, .beta.-hydroxypropyl and .gamma.-hydroxypropyl;
- and R.sub.1 is C.sub.2-8 -alkyl, phenyl or phenyl carrying up to two substituents selected from the group consisting of methyl, methoxy, ethoxy and chlorine;
- M is hydrogen, NH.sub.4 or sodium;
- and the positions of the oxygen bridge, the azo linkage and the sulfonic acid group on the naphthol residue is either 1-2-4 or 2-1-6, respectively.
Dependencies are inferred from the claim text.