K. Zelenin, A. R. Tugusheva, S. I. Yakimovich
Jun 1, 2002
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Influential Citations
19
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Journal
Chemistry of Heterocyclic Compounds
Abstract
The use of 1,3-dicarbonyl compounds containing strong electron-withdrawing substituents (perfluoroalkyl, 4-nitrophenyl) at one of the carbonyl groups in reaction with hydrazine or its monosubstituted derivatives (4-nitro- and 2,4-dinitrophenylhydrazines) leads to the formation of stable intermediates for the synthesis of pyrazoles (5-hydroxy-2-pyrazolines) or their linear tautomers (hydrazones).