Heterocyclic Compounds
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ChemInform Abstract: Synthesis of Bipyrazoles and Pyrazoloisoxazoles from 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one.
First published: 09 June 2010
Abstract
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ChemInform Abstract
The reaction of dehydroacetic acid (I) with hydrazine derivatives yields 4-acetoacetylpyrazolinones (II), which can be easily transformed into bipyrazoles [cf. (IV)] and pyrazoloisoxazoles [cf. (V)].
