Crown Ether Complex Cation Ionic Liquids: Preparation and Applications in Organic Reactions
作者:Yingying Song、Huanwang Jing、Bo Li、Dongsheng Bai
DOI:10.1002/chem.201100112
日期:2011.7.25
cation ionic liquids (CECILs) were designed, synthesised and characterised by NMR spectroscopy, HRMS, thermogravimetric differential thermal analysis (TG‐DTA) and elemental analysis. Their applications in various organic reactions were investigated: [15‐C‐5Na][OH], [15‐C‐5Na][OAc], [18‐C‐6K][OH] and [18‐C‐6K][OAc] (15‐C‐5=[15]crown‐5; 18‐C‐6=[18]crown‐6) efficiently catalysed the Michael addition of alkenes
设计,合成了一系列冠醚络合阳离子液体(CECIL),并通过NMR光谱,HRMS,热重差热分析(TG-DTA)和元素分析对其进行了表征。研究了它们在各种有机反应中的应用:[15-C-5Na] [OH],[15-C-5Na] [OAc],[18-C-6K] [OH]和[18-C-6K] [ OAc](15‐C‐5 = [15] crown‐5; 18‐C‐6 = [18] crown‐6)有效催化烯烃和相关亲核试剂的迈克尔加成;[18-C-6K] [OH]和[15-C-5Na] [OH]有效催化硝基甲烷和芳香醛的亨利反应;[18-C-6K] [OH]对芳族醛和丙二腈的Knoevenagel缩合反应具有出色的催化效率;PdCl 2 / [18‐C‐6K] 3 [PO 4 ] / K 2 CO 3有效地催化了烯烃和芳族卤化物的Heck反应;[18-C-6K] [BrO 3 ]在芳族醇的氧化反应