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Synthesis of bipyrazoles and pyrazoloisoxazoles from 3‐acetyl‐4‐hydroxy‐6‐methyl‐2 H ‐pyran‐2‐one
Author(s) -
Bendaas Abderrahman,
Hamdi Maâmar,
Sellier Nicole
Publication year - 1999
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.5570360529
Subject(s) - chemistry , phenylhydrazine , pyran , hydrazine (antidepressant) , organic chemistry , medicinal chemistry , biochemistry
Phenylhydrazine or hydrazine react with 3‐acetyl‐4‐hydroxy‐6‐methyl‐2 H ‐pyran‐2‐one ( 1 ) to give 4‐acetoacetyl‐3‐methylpyrazolin‐5‐ones 4 . The synthesis of bipyrazoles and pyrazoloisoxazoles from 4 are reported.
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