Cleavage of ethers in an ionic liquid. Enhancement, selectivity and potential application

2017 ◽  
Vol 15 (26) ◽  
pp. 5556-5563 ◽  
Author(s):  
William E. S. Hart ◽  
Leigh Aldous ◽  
Jason B. Harper
Keyword(s):  
Ionic Liquid ◽  
Solvent Effects ◽  
Potential Application ◽  
Side Reactions ◽  
Ether Cleavage

An ionic liquid is used to facilitate ether cleavage without the presence of side reactions; the microscopic origins of the solvent effects are examined. Controlled cleavage of this kind of ether is relevant in the fractionation of lignin.

Monitoring an ionic liquid synthesis with in-situ IR-spectroscopy – The intricacy of solvent effects

2019 ◽  
Vol 368 ◽  
pp. 649-658 ◽  
Author(s):  
Andreas Ohligschläger ◽  
Christoph Gertig ◽  
Dario Coenen ◽  
Sebastian Brosch ◽  
Dzmitry Firaha ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ir Spectroscopy ◽  
Solvent Effects ◽  
In Situ Ir ◽  
In Situ Ir Spectroscopy

Side Reactions in the System Cellulose/1-Alkyl-3-methyl-imidazolium Ionic Liquid

2010 ◽  
pp. 149-164 ◽  
Author(s):  
Michael Schrems ◽  
Gerald Ebner ◽  
Falk Liebner ◽  
Ernst Becker ◽  
Antje Potthast ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Side Reactions ◽  
Imidazolium Ionic Liquid

scholarly journals Investigating Solvent Effects of an Ionic Liquid on Pericyclic Reactions through Kinetic Analyses of Simple Rearrangements

ChemPlusChem ◽  
2017 ◽  
Vol 82 (3) ◽  
pp. 449-457 ◽  
Author(s):  
Sinead T. Keaveney ◽  
Ronald S. Haines ◽  
Jason B. Harper
Keyword(s):  
Ionic Liquid ◽  
Solvent Effects ◽  
Pericyclic Reactions

scholarly journals Solvent effects of 1-ethyl-3-methylimidazolium acetate: solvation and dynamic behavior of polar and apolar solutes

2015 ◽  
Vol 17 (13) ◽  
pp. 8480-8490 ◽  
Author(s):  
Volker Lesch ◽  
Andreas Heuer ◽  
Christian Holm ◽  
Jens Smiatek
Keyword(s):  
Molecular Dynamics ◽  
Ionic Liquid ◽  
Dynamic Behavior ◽  
Solvent Effects ◽  
Room Temperature ◽  
Md Simulations ◽  
Charged Model

We study the solvation properties of the ionic liquid 1-ethyl-3-methylimidazolium acetate ([eMIM]+[ACE]−) and the resulting dynamic behavior for differently charged model solutes at room temperature via atomistic molecular dynamics (MD) simulations of 500 ns length.

scholarly journals One-Pot, Metal-Free Synthesis of Dimethyl Carbonate from CO2 at Room Temperature

2020 ◽  
Vol 1 (3) ◽  
pp. 298-314
Author(s):  
Santosh Govind Khokarale ◽  
Thai Q. Bui ◽  
Jyri-Pekka Mikkola
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Dimethyl Carbonate ◽  
High Selectivity ◽  
Chemical Species ◽  
Side Reactions ◽  
Ambient Conditions ◽  
Reaction Conditions ◽  
One Pot ◽  
Metal Free

Herein, we report on the metal-free, one-pot synthesis of industrially important dimethyl carbonate (DMC) from molecular CO2 under ambient conditions. In this process, initially the CO2 was chemisorbed through the formation of a switchable ionic liquid (SIL), [DBUH] [CH3CO3], by the interaction of CO2 with an equivalent mixture of organic superbase 1,8-diazabicyclo-[5.4.0]-undec-7-ene (DBU) and methanol. The obtained SIL further reacted with methyl iodide (CH3I) to form DMC. The synthesis was carried out in both dimethyl sulfoxide (DMSO) and methanol. Methanol is preferred, as it not only served as a reagent and solvent in CO2 capture and DMC synthesis, but it also assisted in controlling the side reactions between chemical species such as CH3I and [DBUH]+ cation and increased the yield of DMC. Hence, the use of methanol avoided the loss of captured CO2 and favored the formation of DMC with high selectivity. Under the applied reaction conditions, 89% of the captured CO2 was converted to DMC. DBU was obtained, achieving 86% recovery of its salts formed during the synthesis. Most importantly, in this report we describe a simple and renewable solvent-based process for a metal-free approach to DMC synthesis under industrially feasible reaction conditions.

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