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5-(S)-烷氧基-3,4-二卤-2(5H)-呋喃酮在二甲基甲酰胺中的Michael加成-消除反应
Michael Addition-elimination Reactions of Chiral 5-Alkoxy-3,4-dihalo-2(5H)-Furanones in DMF
【Abstract】 In this paper, we report the tandem Michael addition-elimination reactions of chiral 5-alkoxy-3,4-dihalo-2(5H)-furanones with DMF by the catalyst of metal sodium. The optically pure 5-(S)-alkoxy-4-N,N-dimethyl-3-halo-2(5H)-furanones 6a6d were identified on the basis of their analytical data, such as [α]20D , UV, IR, 1H NMR, 13C NMR, MS and elemental analysis.
【关键词】 二甲基甲酰胺;
Michael加成-消除反应;
金属钠;
5-烷氧基-2(5H)-呋喃酮;
【Key words】 Dimethyl formamide; Michael addition-elimination; Sodium; Chiral 5-alkoxy-3,4-dihalo-2(5H)-furanones;
【Key words】 Dimethyl formamide; Michael addition-elimination; Sodium; Chiral 5-alkoxy-3,4-dihalo-2(5H)-furanones;
【基金】 国家自然科学基金!(批准号 :2 96 72 0 0 4);宁夏回族自治区自然科学基金资助
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2001年01期
- 【分类号】O626
- 【被引频次】4
- 【下载频次】165