ChemInform Abstract: An Efficient Protocol for Henry Reaction Using Basic Ionic Liquid [bmIm]OH as Catalyst and Reaction Medium.

ChemInform ◽  
2008 ◽  
Vol 39 (31) ◽  
Author(s):  
Hui Wu ◽  
Fu-ren Zhang ◽  
Yu Wan ◽  
Ling Ye
Keyword(s):  
Ionic Liquid ◽  
Reaction Medium ◽  
Henry Reaction ◽  
Basic Ionic Liquid

A Mild Highly Efficient and Green Protocol for Preparation of N-alk-2′-Enoyl Cyclic Imides Using Basic Ionic Liquid [bmIm]OH as Base and Reaction Medium

2008 ◽  
Vol 2008 (10) ◽  
pp. 559-561 ◽  
Author(s):  
Yongjiang Wang ◽  
Jianwei Mao ◽  
Wen Pei
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Reaction Medium ◽  
Green Protocol ◽  
Highly Efficient ◽  
Basic Ionic Liquid ◽  
Cyclic Imides

An efficient and green protocol for the preparation of N-alk-2′-enoyl cyclic imides at room temperature was developed using a basic ionic liquid, 1-methyl-3-butylimidazolium hydroxide, [bmIm]OH, as a base and a reaction medium.

Catalytic Performance of Imidazolide Basic Ionic Liquid in Knoevenagel Reactions in Aqueous Media

2011 ◽  
Vol 32 (4) ◽  
pp. 693-698
Author(s):  
Xuewei CHEN ◽  
Hongbing SONG ◽  
Xuehui LI ◽  
Furong WANG ◽  
Yu QIAN
Keyword(s):  
Ionic Liquid ◽  
Aqueous Media ◽  
Catalytic Performance ◽  
Basic Ionic Liquid

Lipase-Catalyzed Acyl-L-Carnitines Synthesis in [Bmim]PF6 Ionic Liquid

2009 ◽  
Vol 5 (1) ◽  
Author(s):  
Jin-qiang Tian ◽  
Qiang Wang ◽  
Zhong-yuan Zhang
Keyword(s):  
Ionic Liquid ◽  
Lipase Activity ◽  
Molecular Sieves ◽  
Reaction Medium ◽  
Molar Ratio ◽  
Reaction Conditions ◽  
Optimal Reaction ◽  
Better Than

In order to significantly improve the biosynthesis of acyl-L-carnitines catalyzed by lipase, there must be an efficient and suitable reaction medium that is not only polar but also hydrophobic. [Bmim]PF6, which satisfies the above two requirements, was applied as the medium. The optimal reaction conditions were: for isovaleryl-L-carnitine, 0.22aW, 200mg molecular sieves, 60ºC, 4:1 of molar ratio (fatty acid:L-carnitine), 150rpm and 60h; for octanoyl-L-carnitine and palmitoyl-L-carnitine, 0.22aW, 250 mg molecular sieves, 5:1 of molar ratio (fatty acid:L-carnitine), 200rpm, 48h, 60ºC (octanoyl-L-carnitine) and 65ºC (palmitoyl-L-carnitine). Their overall yields could reach 59.14%, 90.79% and 98.03%, respectively. The yields of isovaleryl-L-carnitine, octanoyl-L-carnitine and palmitoyl-L-carnitine in [Bmim]PF6 were 16.21%, 73.67% and 44.22 % more than those in acetonitrile, respectively. [Bmim]PF6 as the medium was better than acetonitrile. It could not only enhance the yields of acyl-L-carnitines, but also protect the lipase activity.

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