高效可回收催化剂In(OTf)_3用于无溶剂条件下Pechmann缩合反应(英文)

查看全文 作　　者：Bahador [1]Karami;Mahtab [1]Kiani;Mohsen Ahmad [1]Hoseini

机构地区：[1]Department of Chemistry,Yasouj University

出　　处：《催化学报》索引2014年第35卷第7期,共6页

基　　金：Yasouj University for its support 摘　　要：In(OTf)3 plays the role of a Lewis acid catalyst in the Pechmann condensation of phenols with β-ketoesters under solvent-free conditions to give coumarin derivatives. This novel and inexpensive method has advantages such as short reaction time, excellent product yields, and avoids the use of organic solvents in agreement with green chemistry principles. Catalyst loadings can be as low as 1 mol% to give high yields of the corresponding coumarins at 80 °C. The catalyst can be recovered after the reaction, and reused with only a slight decrease in the yield. 关键词：路易斯酸催化剂无溶剂条件可回收 OTF 香豆素衍生物冷凝反应时间产品产率

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高效可回收催化剂In(OTf)_3用于无溶剂条件下Pechmann缩合反应(英文)

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