ChemInform Abstract: A Novel Synthesis of 1-Aryl Tetrazoles Promoted by Employing the Synergy of the Combined Use of DMSO and an Ionic Liquid as the Solvent System at Ambient Temperature.

ChemInform ◽  
2010 ◽  
Vol 41 (6) ◽  
Author(s):  
Satish N. Dighe ◽  
Kishor S. Jain ◽  
Kumar V. Srinivasan
Keyword(s):  
Ionic Liquid ◽  
Ambient Temperature ◽  
Solvent System ◽  
Novel Synthesis ◽  
Combined Use

Synthesis of 2-Phenylthiazoles from α-Tosyloxyketones and Thiobenzamide in [Bmim][PF6] Ionic Liquid at Ambient Temperature

2006 ◽  
Vol 53 (4) ◽  
pp. 863-866 ◽  
Author(s):  
Rei-Sheu Hou ◽  
Huey-Min Wanga ◽  
Hsing-Hui Tsai ◽  
Ling-Ching Chen
Keyword(s):  
Ionic Liquid ◽  
Ambient Temperature

Molecular Dynamics Study of Candida rugosa Lipase in Water, Methanol, and Pyridinium Based Ionic Liquids

2021 ◽  
Vol 874 ◽  
pp. 88-95
Author(s):  
Oktavianus Hendra Cipta ◽  
Anita Alni ◽  
Rukman Hertadi
Keyword(s):  
Molecular Dynamics ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Candida Rugosa ◽  
Solvent System ◽  
Dynamics Simulation ◽  
Initial Structure ◽  
Enzymatic Reactions ◽  
Solvent Systems ◽  
To Come

The structure of Candida rugosa lipase can be affected by solvents used in the enzymatic reactions. Using molecular dynamics simulation as a tool to study the Candida rugosa lipase structure, we studied the effect of various solvent systems, such as water, water-methanol, and water-methanol-ionic liquid. These solvent systems have been chosen because lipase is able to function in both aqueous and non-aqueous medium. In this study, pyridinium (Py)-based ionic liquids were selected as co-solvent. The MD simulation was run for 50 nanoseconds for each solvent system at 328 K. In the case of water-methanol-ionic liquids solvent systems, the total number of the ionic liquids added were varied: 222, 444, and 888 molecules. Water was used as the reference solvent system. The structure of Candida rugosa lipase in water-methanol system significantly changed from the initial structure as indicated by the RMSD value, which was about 6.4 Å after 50 ns simulation. This value was relatively higher compared to the other water-methanol solvent system containing ionic liquid as co-solvent, which were 2.43 Å for 4Py-Br, 2.1 Å for 8Py-Br, 3.37 Å for 4Py-BF4 and 3.49 Å for 8Py-BF4 respectively. Further analysis by calculating the root mean square fluctuation (RMSF) of each lipase residue found that the presence of ionic liquids could reduce changes in the enzyme structure. This happened because the anion component of the ionic liquid interacts relatively more strongly with residues on the surface of the protein as compared to methanol, thereby lowering the possibility of methanol to come into contact with the protein.

scholarly journals A sequential one-pot strategy for the synthesis of triterpenoid saponins in ionic liquid [emim][OTf]

2019 ◽  
Vol 43 (1-2) ◽  
pp. 20-25 ◽  
Author(s):  
Yiming Song ◽  
Tiantian Guo ◽  
Qingchao Liu ◽  
Weiguo Song ◽  
Fahui Li
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
One Pot ◽  
Triterpenoid Saponins ◽  
Combined Use

1-Ethyl-3-methylimidazolium trifluoromethanesulfonate ([emim][OTf]) is an efficient co-solvent and co-promoter for one-pot sequential glycosylation with the combined use of thioglycosides and trichloroacetimidates (or N-phenyltrifluoroacetimidates) donors at room temperature. One-pot glycosylation is efficient for the synthesis of triterpenoid saponins with the combined use of N-phenyltrifluoroacetimidate donors and 2-methyl-5-tert-butylphenyl (Mbp) thioglycoside donors in [emim][OTf].

Highly Conductive Polymeric Ionic Liquid Electrolytes for Ambient-Temperature Solid-State Lithium Batteries

2020 ◽  
Vol 12 (21) ◽  
pp. 23774-23780
Author(s):  
Fengrui Zhang ◽  
Yiyang Sun ◽  
Zhicheng Wang ◽  
Daosong Fu ◽  
Jing Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
Ambient Temperature ◽  
Lithium Batteries ◽  
Polymeric Ionic Liquid ◽  
Liquid Electrolytes

Ionic Liquid 4-(3-Methyl-1-imidazolio)-1-butanesulfonic Acid Hydrogen Sulfate-catalyzed Synthesis of Phthalazinetrione Derivatives

2012 ◽  
Vol 67 (7) ◽  
pp. 717-724
Author(s):  
Shihua Song ◽  
Xiang Deng ◽  
Zhi Guan ◽  
Yanhong He
Keyword(s):  
Ionic Liquid ◽  
Polyethylene Glycol ◽  
Condensation Reaction ◽  
Reaction Times ◽  
Solvent System ◽  
Environmentally Benign ◽  
Hydrogen Sulfate ◽  
One Pot ◽  
Simple Method ◽  
Peg 600

A simple method for the synthesis of phthalazinetrione derivatives by a one-pot three-component condensation reaction of phthalhydrazide, 1,3-dicarbonyl compounds and aldehydes catalyzed by the ionic liquid 4-(3-methyl-1-imidazolio)-1-butanesulfonic acid hydrogen sulfate ([BSO3HmIm]HSO4) is reported. Good to excellent yields were obtained in short reaction times in the solvent PEG 600 (polyethylene glycol 600) at 120 °C. The strategy proved to be efficient and environmentally benign. The catalyst/solvent system could easily be recovered and reused for at least 5 times without noticeable loss of activity

Ambient Temperature “Flash” SARA ATRP of Methyl Acrylate in Water/Ionic Liquid/Glycol Mixtures

2015 ◽  
Vol 48 (19) ◽  
pp. 6810-6815 ◽  
Author(s):  
João R. C. Costa ◽  
Patrícia V. Mendonça ◽  
Pedro Maximiano ◽  
Arménio C. Serra ◽  
Tamaz Guliashvili ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ambient Temperature ◽  
Methyl Acrylate
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