Journal of Heterocyclic Chemistry p. 1291 - 1294 (1999)
Update date:2022-08-16
Topics:
Bendaas, Abderrahman
Hamdi, Maamar
Sellier, Nicole
Phenylhydrazine or hydrazine react with 3-acetyl-4-hydroxy-6-methyl-2H- 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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