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Hetarylpyrazoles. IV . Synthesis and reactions of 1,5′‐bipyrazoles
Author(s) -
Khan Misbahul Ain,
Freitas Antonio Carlos Carreira
Publication year - 1983
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570200204
Subject(s) - chemistry , ring (chemistry) , electrophile , pyrazole , electrophilic substitution , condensation , substitution reaction , medicinal chemistry , condensation reaction , stereochemistry , organic chemistry , catalysis , physics , thermodynamics
A number of 1, 5′‐bipyrazoles were obtained from the condensation of pyrazol‐5‐ylhydrazine and 1, 3‐dicarbonyl compounds. Electrophilic substitution reactions of these 1, 5′‐bipyrazoles occur at the four position of the pyrazole ring.