An imidazolium tosylate salt as efficient and recyclable catalyst for acetylation in an ionic liquid
作者:Ye Liu、Lu Liu、Yong Lu、Yue-Qin Cai
DOI:10.1007/s00706-007-0814-z
日期:2008.6
([ bmim ][O Ts ]) dissolved in the ambient temperature ionic liquid of 1-butyl-3-methylimidazolium tetrafluoroborate ([ bmim ][BF4]), was found to be the efficient catalyst for acetylation with the advantages of good recyclability, avoidance of metal contamination, mild reaction conditions, and wide availability for substrates (alcohols, phenols, and amines), could completely replace organic bases,
一种新型的非金属盐,甲苯磺酸1-丁基-3-甲基咪唑鎓盐([ bmim ] [O Ts ])溶于环境温度离子液体的四氟硼酸1-丁基-3-甲基咪唑鎓盐([ bmim ] [BF 4 ]),被发现是一种有效的乙酰化催化剂,具有良好的可回收性,避免了金属污染,反应条件温和并且可广泛用于底物(醇,酚和胺),可以完全取代有机碱,金属 路易斯 酸或金属三氟甲磺酸酯通过亲核催化机理实现乙酰化,这由13 C NMR分析支持。