Highly efficient and recyclable copper based ionic liquid catalysts for amide synthesis

2016 ◽  
Vol 40 (8) ◽  
pp. 7162-7170 ◽  
Author(s):  
Poonam Rani ◽  
Rajendra Srivastava

Copper based ionic liquids have been successfully prepared for the synthesis of primary, secondary and tertiary amides under mild reaction conditions.

2017 ◽  
Vol 41 (24) ◽  
pp. 15545-15554 ◽  
Author(s):  
Charu Garkoti ◽  
Javaid Shabir ◽  
Padmini Gupta ◽  
Manisha Sharma ◽  
Subho Mozumdar

Heterogenization of amine functionalized ionic liquid and its application as an efficient and recyclable catalyst.


2017 ◽  
Vol 7 (10) ◽  
pp. 2065-2073 ◽  
Author(s):  
Jie Deng ◽  
Bao-Hua Xu ◽  
Yao-Feng Wang ◽  
Xian-En Mo ◽  
Rui Zhang ◽  
...  

A highly efficient synthesis of isosorbide from sorbitol was developed using Brønsted acidic ionic liquids (BILs) as the catalyst for the first time.


2021 ◽  
Author(s):  
Guiling Shi ◽  
Ran Zhai ◽  
Haoran Li ◽  
Congmin Wang

A dual functionalized ionic liquid catalytic system was developed for the reaction between CO2 and propargylic alcohols, and exhibited excellent performance and good reusability, even under a low concentration of CO2 in a gram-scale reaction.


2005 ◽  
Vol 2005 (9) ◽  
pp. 600-602 ◽  
Author(s):  
Yu-Ling Li ◽  
Mei-Mei Zhang ◽  
Xiang-Shan Wang ◽  
Da-Qing Shi ◽  
Shu-Jiang Tu ◽  
...  

In this paper the preparation of 3,3,6,6-tetramethyl-9-aryl-1,2,3,4,5,6,7,8,9,10- decahydroacridin-1,8-dione derivatives from aromatic aldehydes, 5,5-dimethyl-1,3- cyclohexanedione and ammonium acetate in ionic liquids [bmim+][BF4-] is described. This new method has the advantages of easier work-up, milder reaction conditions, high yields and an environmentally benign procedure compared with other methods.


2016 ◽  
Vol 7 (1) ◽  
pp. 266-273 ◽  
Author(s):  
Xinchen Kang ◽  
Qinggong Zhu ◽  
Xiaofu Sun ◽  
Jiayin Hu ◽  
Jianling Zhang ◽  
...  

It has been discovered that Zn metal-organic framework (Zn-MOF) electrodes and ionic liquids are an excellent combination for the efficient and selective reduction of CO2 to CH4.


2014 ◽  
Vol 68 (10) ◽  
Author(s):  
Xiao-Yang Li ◽  
Qian Zhou ◽  
Ke-Ke Yang ◽  
Yu-Zhong Wang

AbstractImidazolium acetate ionic liquids show high efficiency in the degradation of polylactides (PLA): degradation degree of PLA can reach almost 100 % in imidazolium acetate ionic liquids at 170°C and 1 h under atmospheric pressure, while the degradation degree of PLA remains close to 0 % using neutral 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) and acidic ionic liquids at the same reaction conditions. With the increase of both the amount of acetate ionic liquid and the reaction temperature, the degradation degree of PLA increases. The structure of ionic liquids affects the degradation behavior of PLA: for cations, the proton from the C-2 position on the imidazolium ring is involved in the degradation of PLA; the degradation of PLA increases with the increase of the alkyl side-chain length of imidazolium cations; for anions, moderate basicity of the acetate ion contributes to the high activity of the imidazolium acetate ionic liquids in the degradation of PLA.


2016 ◽  
Vol 18 (7) ◽  
pp. 1859-1863 ◽  
Author(s):  
Kuan Huang ◽  
Xi Feng ◽  
Xiao-Min Zhang ◽  
You-Ting Wu ◽  
Xing-Bang Hu

Ionic liquids can mediate effectively the reaction of H2S with SO2without catalysts. The conversion of H2S is as high as 96% within 3 min in [hmim][Cl]. This finding opens up a promising roadmap for the simultaneous capture and conversion of H2S.


2019 ◽  
Vol 43 (20) ◽  
pp. 7725-7732 ◽  
Author(s):  
Yun Hao ◽  
Ying-juan Hao ◽  
Jie Ren ◽  
Biao Wu ◽  
Xiao-jing Wang ◽  
...  

A highly efficient extractant of an FeCl3-based ionic liquid is prepared and its extractive/catalytic oxidative mechanisms for sulfur removal are proposed.


2008 ◽  
Vol 61 (9) ◽  
pp. 704 ◽  
Author(s):  
Mohammad Al Zoubi ◽  
Hala K. Farag ◽  
Frank Endres

Nanocrystalline TiO2 with pure rutile and pure anatase phases was prepared at moderate reaction temperatures by hydrolysis of TiCl4 in different air- and water-stable ionic liquids with the same anion ([Py1,4]Tf2N, [EMIM]Tf2N, and [P14,6,6,6]Tf2N), in isopropanol and in cosolvent of ionic liquid/isopropanol under different reaction conditions. The type of cation in the ionic liquid influences the morphology of the rutile phase: cone-like morphology was obtained in the case of [Py1,4]+ and [P14,6,6,6]+ ions and wormhole-like in the case of [EMIM]+. In the case of anatase, no significant effect was found. The influence of various reaction conditions like acidity of solution, solvent type, precursor type, and precursor concentration on the phase formation and morphology of titania were investigated.


2004 ◽  
Vol 82 (7) ◽  
pp. 1192-1196 ◽  
Author(s):  
Jianji Wang ◽  
Xuesen Fan ◽  
Xinying Zhang ◽  
Lijun Han

The preparation of substituted quinoline derivatives through a Friedlander condensation reaction utilizing the ionic liquid [bmim][BF4] as the reaction medium and iron chloride hexahydrate (FeCl3·6H2O) as a catalyst is described. The advantages in using this method include its environmental friendliness, simple operating process in both mild and neutral reaction conditions, and good yields.Key words: ionic liquid, Friedlander reaction, quinoline derivatives, green chemistry.


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