Preparation of 1-aryl-5-amino-pyrazoles

Details Preparation of 1-aryl-5-amino-pyrazoles Preparation of 1-aryl-5-amino-pyrazoles

1987-04-03

1989-04-25

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546279, C07D23138

Patent

active

048249602

ABSTRACT:
A process for the preparation of a 1-aryl-5-amino-pyrazole of the formula ##STR1## in which Ar is in each case optionally substituted phenyl or pyridyl, comprising reacting an arylhydrazine of the formula

REFERENCES:
Schmidt et al., "Heilmittelchemische Studien in der heterocyclischen Reihe", Helv. Chim. Acta, 41 (1958) pp. 306-309.

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