Novel azo dyes having 2-amino-5-aminomethyl-7-sulfo naphthalene

Details Novel azo dyes having 2-amino-5-aminomethyl-7-sulfo naphthalene Novel azo dyes having 2-amino-5-aminomethyl-7-sulfo naphthalene

1979-03-23

1981-09-08

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260156, 260162, 260193, 260194, 260196, C09B 2900, C09B 6300

Patent

active

042883636

ABSTRACT:
Dyestuff intermediates of the formula ##STR1## wherein R.sub.1 represents hydrogen, an alkyl radical of 1 to 8 carbon atoms or a phenyl radical, R.sub.2 represents hydrogen or an acyl radical and Z represents hydrogen or a sulfo group, and the use thereof for the manufacture of azo dyes of the formula ##STR2## wherein D represents the radical of a coupling component, R.sub.1 represents hydrogen, an alkyl radical of 1 to 8 carbon atoms or a phenyl radical, and R.sub.2 represents hydrogen or an acyl radical, or of azo dyes of the formula ##STR3## wherein K is the radical of a coupling component, Z represents hydrogen or the sulfo group, and R.sub.2 represents hydrogen or an acyl radical.

REFERENCES:
patent: 3808194 (1974-04-01), Piller
patent: 4049704 (1977-09-01), Jager
patent: 4126609 (1978-11-01), Jager
patent: 4145340 (1979-03-01), Ridyard

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