Preparation of 5-amino-1-phenyl-4-nitropyrazoles

Details Preparation of 5-amino-1-phenyl-4-nitropyrazoles Preparation of 5-amino-1-phenyl-4-nitropyrazoles

1988-12-08

1990-01-09

Ramsuer, R. W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23116

Patent

active

048929581

ABSTRACT:
A process for the preparation of a 5-amino-1-phenyl-4-nitropyrazole of the formula ##STR1## in which Ar is optionally substituted phenyl, which comprises reacting an arylhydrazine of the formula

REFERENCES:
patent: 3285930 (1966-11-01), Williams
patent: 4685956 (1987-08-01), Gehring et al.

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