Synthesis of bipyrazoles and pyrazoloisoxazoles from 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one |
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Authors: | Abderrahman Bendaas Mamar Hamdi Nicole Sellier |
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Institution: | Abderrahman Bendaas,Maâmar Hamdi,Nicole Sellier |
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Abstract: | 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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