Study of the reaction of fluoroalkyl β-ketoesters with methylhydrazine by1H and19F NMR spectroscopy期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Study of the reaction of fluoroalkyl β-ketoesters with methylhydrazine by1H and19F NMR spectroscopy

Authors:	V I Saloutin M I Kodess A N Fomin S I Selivanov B A Ershov K I Pashkevich

Institution:	(1) Institute of Chemistry, Ural Branch, Academy of Sciences of the USSR, USSR

Abstract:	Conclusions By¹H and¹⁹F NMR spectroscopy it was shown that reaction of fluoroalkyl -ketoesters with methylhydrazine in deuteromethanol at –30 to 30C involves intermediate formation of the -ketoester salts with methylhydrazine and 3,5-dioxypyrazolidines which successively split off methanol and H₂O with formation of 3-oxypyrazolines and pyrazol-5-ones, respectively.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 399–402, February, 1988.

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