Synthesis and structure of fluorine-containing 3-pyrazolin-5-ones

Synthesis and structure of fluorine-containing 3-pyrazolin-5-ones

Noncatalyzed reaction of α-acetyl-γ-butyrolactones containing a polyfluoroalkyl substituent in the γ-position with hydrazine hydrate and thiosemicarbazide in methanol leads to the formation of substituted 3-pyrazolin-5-ones that in (CD₃)₂SO solution and in the solid state exist in the NH-tautomeric...

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Veröffentlicht in:Russian journal of organic chemistry 2009-11, Vol.45 (11), p.1670-1674
Hauptverfasser: Gorbunova, T. I, Bazhin, D. N, Kodess, M. I, Matochkina, E. G, Slepukhin, P. A, Zapevalov, A. Ya, Saloutin, V. I
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Organic Chemistry
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Zusammenfassung:Noncatalyzed reaction of α-acetyl-γ-butyrolactones containing a polyfluoroalkyl substituent in the γ-position with hydrazine hydrate and thiosemicarbazide in methanol leads to the formation of substituted 3-pyrazolin-5-ones that in (CD₃)₂SO solution and in the solid state exist in the NH-tautomeric form.
ISSN:1070-4280
1608-3393
DOI:10.1134/S1070428009110141