Process for the preparation of pyrazole azo dyestuffs

Details Process for the preparation of pyrazole azo dyestuffs Process for the preparation of pyrazole azo dyestuffs

1995-04-06

1996-03-26

Richter, Johann

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

Organic compounds

Azo

534588, 534592, 534607, 534753, 534792, 534793, 534794, 534775, 534777, C09B 4300, C09B 4312, C09B 29036

Patent

active

055021727

ABSTRACT:
New pyrazole azo dyestuffs of the formula (I) ##STR1## in which R.sup.1 denotes hydrogen or an acyl radical,

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Paetzel et al, Chemical Abstracts, 108:131810K (1988).
Molina et al., J. Heterocyclic Chem., 22(5), 1189-93, 1985.
Abdelhamid et al., J. Heterocyclic Chem., 22(3), 813-16, 1985.

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