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KF/Al2O3催化的羰基与活性亚甲基化合物的缩合反应
Condensation Reaction of Carbonyl with Acidic Methylene Compound Catalyzed by Potassium Fluoride on Alumina
【摘要】 在KF/Al2O3催化下,芳香醛与氰乙酸乙酯或氰乙酰胺发生羰基与亚甲基的缩合反应,得到高产率的缩合产物,且为E式结构。
【Abstract】 The carbonyl - methylene condensation reaction of aromatic aldehydes with ethyl cyanoacetate or cyanoacetamide has been carried out smoothly in the presence of potassium fluorides on alumina in high yield of products,and only the E isomers of the products were obtained.
【关键词】 氟化钾/氧化铝;
芳香醛;
氰乙酸乙酯;
氰乙酰胺;
缩合反应;
【Key words】 potassium fluoride / alumina; aromatic aldehyde; ethyl cyanoaretate; cyanoacetamidc; condensation reaction;
【Key words】 potassium fluoride / alumina; aromatic aldehyde; ethyl cyanoaretate; cyanoacetamidc; condensation reaction;
【基金】 江苏省教委自然科学基金
- 【文献出处】 有机化学 ,Chinese Journal of Organic Chemistry , 编辑部邮箱 ,1996年06期
- 【分类号】O621.25
- 【被引频次】58
- 【下载频次】303