Synthesis and reactions of 2-hydroxy-5,5-dimethyl- and 2-hydroxy-5,5-pentamethylene-2-trifluoromethyltetrahydro-4-pyranones withN-nucleophiles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

Synthesis and reactions of 2-hydroxy-5,5-dimethyl- and 2-hydroxy-5,5-pentamethylene-2-trifluoromethyltetrahydro-4-pyranones withN-nucleophiles

Authors:	V. Ya. Sosnovskikh M. Yu. Mel'nikov A. V. Zaitsev E. A. Bogdanov

Affiliation:	(1) A. M. Gorky Ural State University, 51 prosp. Lenina, 620083 Ekaterinburg, Russian Federation

Abstract:	Condensation of 4-hydroxy-3,3-dimethyl- and 4-hydroxy-3,3-pentamethylenebutan-2-ones with ethyl trifluoroacetate in the presence of LiH in hexane afforded 2-hydroxy-5,5-dimethyl-and 2-hydroxy-5,5-pentamethylene-2-trifluoromethyltetrahydro-4-pyranones, whose behavior in reactions withN-nucleophiles is analogous to that of unsymmetrical polyfluorinated β-diketones. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1201–1205, June, 1998.

Keywords:	condensation, β -hydroxyketones, ethyl trifluoroacetate, tetrahydro-4-pyranones aminoenones, CF₃-containing pyrazoles and Δ ²-isoxazolines
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