Synthesis of a Basic Imidazolide Ionic Liquid and Its Application in Catalyzing Knoevenagel Condensation

被引：1
|
作者：
Chen Xuewei [2 ]
Li Xuehui [1 ]
Song Hongbing [1 ]
Lue Yangxiao [1 ]
Wang Furong [1 ]
Hu Aixi [2 ]
机构：
[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
[2] Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2008年 / 29卷 / 10期
关键词：
imidazolide anion; basic ionic liquid; catalysis; Knoevenagel condensation;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A novel basic ionic liquid paired by 1-butyl-3-methylimidazolium cation and imidazolide anion ([bmim]Im) was synthesized and its basicity was investigated. The basicity of [bmim] Im approaches to that of [bmim]OH and is much stronger than that of [bmim]OAc. In aqueous solution and under room temperature, 2% of [bmim]Im showed well catalytic properties for Knoevenagel condensations between aromatic aldehyde and active methylene compounds with 86%-95% yield and 100% selectivity of ylidene-malononitriles. Experimental results showed that this kind of imidazolide ionic liquid has better recycle ability as well.
引用
收藏
页码：957 / 959
页数：3
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