节点文献
相转移催化法合成4-甲基伞形酮衍生物的研究
Synthesis of Derivatives of 4-Methyl Umbelliferone by Phase Transfer Catalysis
【摘要】 报道了用乙腈为溶剂,利用聚乙二醇-400为相转移催化剂合成了三种4-甲基伞形酮衍生物b、c、d,考察了诸因素对产率的影响,找出了最佳的反应条件。最佳的反应温度为65~70°C。产物b、c、d的产率分别为:91.1%,78.2%,62.3%。
【Abstract】 The 4-methylumbelliferone derivatives b,c and d were synthesied by using CH3CN as solvent and PEG-400 as phase transfer catalyst. The optimum reaction temperature was 65~(70°C). The yields of compound, b,c and d were 91.1%,78.2% and 62.3%, respectively.
【关键词】 4-甲基伞形酮;
间苯二酚;
乙酰乙酸乙酯;
合成;
【Key words】 4-methylumbelliferone; resorcin; ethyl acetoacetate; synthesis;
【Key words】 4-methylumbelliferone; resorcin; ethyl acetoacetate; synthesis;
- 【文献出处】 化学世界 ,Huaxue Shijie (Chemical World) , 编辑部邮箱 ,2004年06期
- 【分类号】TQ460
- 【被引频次】3
- 【下载频次】175