Metallizable disazo compounds having 1, 3-dihydroxybenzene bis-c

Details Metallizable disazo compounds having 1, 3-dihydroxybenzene bis-c Metallizable disazo compounds having 1, 3-dihydroxybenzene bis-c

1995-05-15

1997-09-16

Powers, Fiona

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

Organic compounds

Azo

8437, 8681, 8685, 8919, 534688, C09B 4532

Patent

active

056682590

ABSTRACT:
Compounds of the formula ##STR1## iron complexes thereof and mixtures of such iron complexes, wherein D is a monocyclic or bicyclic aromatic diazo component radical of the benzene series containing one --SO.sub.3 M group or is ##STR2## R.sub.1 is hydrogen, methyl or ethyl, and R.sub.4 is hydrogen, chloro or C.sub.1-2 alkyl,
wherein R' is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 hydroxyalkyl, methoxy(C.sub.2-4 alkyl) or ##STR3## R" is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 hydroxyalkyl or methoxy(C.sub.2-4 alkyl), or

REFERENCES:
patent: 4491543 (1988-01-01), Bergmann et al.
patent: 4996302 (1991-02-01), Langfeld
patent: 5104979 (1992-04-01), Hansen et al.

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