Disazo and trisazo compounds containing one 6-hydroxypyrid-2-one

Details Disazo and trisazo compounds containing one 6-hydroxypyrid-2-one Disazo and trisazo compounds containing one 6-hydroxypyrid-2-one

1985-05-20

1988-05-03

Higel, Floyd D.

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

Organic compounds

Azo

162162, 534755, 534757, 534759, C09B 3518, C09B 3520, C09B 3535, C09B 4402

Patent

active

047421614

ABSTRACT:
Disazo and trisazo compounds of the formula ##STR1## and salts thereof, wherein in each B is independently hydrogen; C.sub.1-4 alkyl; (C.sub.1-4 alkoxy) C.sub.1-4 alkyl; C.sub.2-4 hydroxyalkyl; C.sub.5-6 cycloalkyl; C.sub.5-6 cyloalkyl substituted by 1 to 3 C.sub.1-4 alkyls; phenyl (C.sub.1-3 alkyl); phenyl (C.sub.1-3 alkyl) the phenyl group of which is substituted by 1 to 3 substituents selected from C.sub.1-4 alkyl, C.sub.1-4 alkoxy and halo; --A--NH--R.sub.2 ; --A.sub.2 --N(R.sub.7).sub.2 ; --A.sub.N.sup..crclbar. (R.sub.8).sub.2 R.sub.9 A.sup..sym. or --N(R.sub.7).sub.2,
wherein

REFERENCES:
patent: 4087244 (1978-05-01), Greve et al.
patent: 4167509 (1979-09-01), Parton
patent: 4213898 (1980-07-01), Entschel et al.
patent: 4550158 (1985-10-01), Doswald et al.

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