3(5)-hydrazinopyrazole compounds

Details 3(5)-hydrazinopyrazole compounds 3(5)-hydrazinopyrazole compounds

1991-09-17

1993-08-10

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483657, 5483124, 548251, 548257, 548260, 548261, 5482624, 5482662, 5483647, 5483691, 5483661, 5483654, 546193, 546194, 546256, 546271, 546211, 544333, C07D23138, C07D40304

Patent

active

052350584

ABSTRACT:
There is disclosed a 3(5)-hydrazinopyrazole compound represented by the following formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, a hydroxyl group, an alkoxy group, or an aryloxy group, R.sub.2 represents a hydrogen atom or an acyl group, X represents an aryloxy group, an alkoxy group, a heterocyclic oxy group, or an azolyl group, M represents a hydrogen ion or a metal ion, Y represents an acid radical, and n is 0 or a positive number.

REFERENCES:
Chemical Abstracts, "Preparation of 5-(acyl)hydrazinopyrazole-4-carboxylate esters as intermediates for photographic magenta couplers", vol. 110, No. 5, Jan. 1989. abstract No. 38989g.
Chemical Abstracts, "Preparation of 5-hydrazino-1H-pyrazoles as intermediates for 1H-pyrazolo(3,2-c)-s-triazole couplers for photography", vol. 109, No. 25, Dec. 1988. abstract No. 231006s.
Chemical Abstracts, "Preparation of 5-hydrazino-1H-pyrazoles as intermediates for magenta couplers", vol. 109, No. 21, Nov. 1988. abstract No. 190409e.

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