Azo compounds having at least one 6-hydroxypyrid-2-one coupling

Details Azo compounds having at least one 6-hydroxypyrid-2-one coupling Azo compounds having at least one 6-hydroxypyrid-2-one coupling

1984-04-09

1987-06-16

Higel, Floyd D.

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

Organic compounds

Azo

534604, 534605, 534613, 534827, 544181, 544198, 546 2, 546193, C09B 4402, C09B 4404, C09B 4406, C09B 4408

Patent

active

046737359

ABSTRACT:
A compound of formula I ##STR1## in metal-free; 1:1 or 1:2 metal complex form and, when an acid group is present, in free acid or acid addition salt form, in which R.sub.1 is hydrogen or --N.dbd.N--D where D is a diazo component and R, T and B are organic radicals defined in the text.

REFERENCES:
patent: 3852261 (1974-12-01), Steinemann
patent: 4087244 (1978-05-01), Greve et al.
patent: 4273707 (1981-06-01), Pedrazzi
patent: 4363761 (1982-12-01), Pedrazzi
patent: 4367172 (1983-01-01), Pedrazzi

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