Anthraquinone-azo pyridone-containing compounds

Details Anthraquinone-azo pyridone-containing compounds Anthraquinone-azo pyridone-containing compounds

1983-04-21

1987-11-24

Higel, Floyd D.

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

Organic compounds

Azo

534575, 534581, 534887, 106119, 106288Q, 106300, 106309, C09B 2901, C09B 2936, C09D 108, C09D 500

Patent

active

047090197

ABSTRACT:
Anthraquinone-azo pyridone-containing compounds which in one of their tautomeric structures, correspond to the formula ##STR1## in which A denotes an .alpha.-anthraquinone radical which is free from sulphonic acid groups and is unsubstituted or substituted and preferably consists of at most 5 fused rings;

REFERENCES:
patent: 3640674 (1972-02-01), Berrie et al.
patent: 3657214 (1972-04-01), Berrie et al.

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