Reactions of regioisomeric 3,3-dimethyl- and 2,2-dimethyl-6-trifluoromethyl-2,3-dihydro-4-pyrones with N-nucleophiles

被引：0
作者：
V. Ya. Sosnovskikh
M. Yu. Mel'nikov
机构：
[1] A. M. Gorky Ural State University,
来源：
Russian Chemical Bulletin | 1999年 / 48卷
关键词：
substituted 2,3-dihydro-4-pyrones; substituted tetrahydro-4-pyrones; CF; -containing aminoenones; pyrazoles; Δ; -isoxazolines;
D O I：
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学科分类号：
摘要：
Reactions of 2,2-dimethyl-6-trifluoromethyl-2,3-dihydro-4-pyrone with ethylenediamine, hydrazine, or hydroxylamine yield 5-methyl-7-trifluoromethyl-2,3-dihydro-1H-1,4-diazepine, 3(5)-(2-hydroxy-2-methylpropyl)-5(3)-trifluoromethylpyrazole, and 5-hydroxy-3-(2-hydroxy-2-methylpropyl)-5-triflouromethyl-Δ2, respectively. The same compounds were obtained from 2-amino-1,1,1-trifluoro-6-hydroxy-6-methylhept-2(Z)-en-4-one and 2-hydroxy-6, 6-dimethyl-2-trifluoromethyltetrahydro-4-pyrone.
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页码：975 / 978
页数：3
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