Electrocarboxylation of acetophenone in ionic liquids: the influence of proton availability on product distribution

2014 ◽  
Vol 16 (4) ◽  
pp. 2242-2251 ◽  
Author(s):  
Shu-Feng Zhao ◽  
Mike Horne ◽  
Alan M. Bond ◽  
Jie Zhang
Keyword(s):  
Ionic Liquids ◽  
Product Distribution ◽  
High Yield

High-yield electrocarboxylation of acetophenone can be achieved in dry [BMPyrd][TFSI].

A two-phase system for the clean and high yield synthesis of furylmethane derivatives over –SO3H functionalized ionic liquids

2017 ◽  
Vol 19 (20) ◽  
pp. 4804-4810 ◽  
Author(s):  
S. H. Shinde ◽  
C. V. Rode
Keyword(s):  
Ionic Liquids ◽  
Reaction System ◽  
High Yield ◽  
Phase System ◽  
Phase Reaction ◽  
Two Phase ◽  
Yield Production ◽  
High Yield Production

A new and effective unique two-phase reaction system for the high yield production of tri(furyl)methane from furfural and furan.

scholarly journals Stable and Oriented Liquid Crystal Droplets Stabilized by Imidazolium Ionic Liquids

Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 6044
Author(s):  
Efthymia Ramou ◽  
Guilherme Rebordão ◽  
Susana I. C. J. Palma ◽  
Ana C. A. Roque
Keyword(s):  
Ionic Liquids ◽  
Liquid Crystal ◽  
Soft Matter ◽  
Sodium Dodecyl ◽  
High Yield ◽  
Molecular Features ◽  
Surface Active ◽  
State Of Matter ◽  
First Time ◽  
Sds Surfactant

Liquid crystals represent a fascinating intermediate state of matter, with dynamic yet organized molecular features and untapped opportunities in sensing. Several works report the use of liquid crystal droplets formed by microfluidics and stabilized by surfactants such as sodium dodecyl sulfate (SDS). In this work, we explore, for the first time, the potential of surface-active ionic liquids of the imidazolium family as surfactants to generate in high yield, stable and oriented liquid crystal droplets. Our results show that [C12MIM][Cl], in particular, yields stable, uniform and monodisperse droplets (diameter 74 ± 6 µm; PDI = 8%) with the liquid crystal in a radial configuration, even when compared with the standard SDS surfactant. These findings reveal an additional application for ionic liquids in the field of soft matter.

Ionic liquids in supercritical methanol greatly enhance transesterification reaction for high-yield biodiesel production

AIChE Journal ◽  
2016 ◽  
Vol 62 (11) ◽  
pp. 3842-3846 ◽  
Author(s):  
V. M. Ortiz-Martínez ◽  
M. J. Salar-García ◽  
F. J. Hernández-Fernández ◽  
P. Olivares-Carrillo ◽  
A. P. de los Ríos ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Transesterification Reaction ◽  
Biodiesel Production ◽  
High Yield ◽  
Supercritical Methanol

Influence of the Gas and Particle Residence Time on Fast Pyrolysis of Lignite

2006 ◽  
Vol 129 (2) ◽  
pp. 152-158 ◽  
Author(s):  
Lijie Cui ◽  
Wenli Song ◽  
Jiayuan Zhang ◽  
Jianzhong Yao ◽  
Weigang Lin
Keyword(s):  
Residence Time ◽  
Circulating Fluidized Bed ◽  
Product Distribution ◽  
Liquid Fuels ◽  
High Yield ◽  
Flash Pyrolysis ◽  
Particle Residence Time ◽  
Coal Particles ◽  
Liquid Products ◽  
Secondary Reactions

Coal resource is abundant in China, while the reserves of natural gas and petroleum are limited. Due to the rapid increase in the number of automobiles, a competitive way to produce liquid fuels from coal is urgently needed in China. A so-called “coal topping process” is under development at the Institute of Process Engineering, Chinese Academy of Sciences, from which liquid products can be obtained by flash pyrolysis in an integrated circulating fluidized bed system. In order to achieve a high yield of liquid products from high volatile coal, controlling the residence time of coal particles and produced gas may be of importance for minimizing the degree of the secondary reactions; i.e., polymerization and cracking of the liquid products. Experiments of the flash pyrolysis of coal have been conducted in an entrained bed reactor, which is especially designed to study the influence of the coal particle residence time on the product distribution. The results show that the gaseous, liquid, and solid product distribution, the gas compositions as well as the liquid compositions depend strongly on the gas and particle residence time.

Brønsted acidic ionic liquids catalyze the high-yield production of diphenolic acid/esters from renewable levulinic acid

2013 ◽  
Vol 15 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Hai-Feng Liu ◽  
Fan-Xin Zeng ◽  
Li Deng ◽  
Bing Liao ◽  
Hao Pang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Levulinic Acid ◽  
High Yield ◽  
Yield Production ◽  
Acidic Ionic Liquids ◽  
Acid Esters ◽  
High Yield Production

Electrochemical reduction of aromatic ketones in 1-butyl-3-methylimidazolium-based ionic liquids in the presence of carbon dioxide: the influence of the ketone substituent and the ionic liquid anion on bulk electrolysis product distribution

2015 ◽  
Vol 17 (29) ◽  
pp. 19247-19254 ◽  
Author(s):  
Shu-Feng Zhao ◽  
Mike Horne ◽  
Alan M. Bond ◽  
Jie Zhang
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Electrochemical Reduction ◽  
Product Distribution ◽  
Aromatic Ketone ◽  
Aromatic Ketones ◽  
Bulk Electrolysis ◽  
Electrolysis Product

The yield of electrocarboxylation of aromatic ketone depends on the imidazolium-based ionic liquid anion and the ketone substituent.

scholarly journals Synthesis of Medicinally Important Quinazolines and Their Derivatives: A Review

2020 ◽  
Vol 14 (1) ◽  
pp. 108-121
Author(s):  
Sulochana Sharma ◽  
Kailash Sharma ◽  
Sakshi Pathak ◽  
Mahendra Kumar ◽  
Praveen Kumar Sharma
Keyword(s):  
Clinical Trials ◽  
Ionic Liquids ◽  
Multicomponent Reactions ◽  
Chemical Compounds ◽  
Review Article ◽  
High Yield ◽  
Pharmacological Properties ◽  
Reaction Products ◽  
Microwave Irradiations ◽  
High Yields

The study of biodynamic heterosystems has proved to be the most attractive and useful for the development of potential drugs with superior properties and works effectively for the treatment of a variety of diseases, including pandemic ones. Out of the thousand biodynamic heterosystems, the quinazoline heterosystem is one that exhibits wide-ranging biological and pharmacological properties. Synthesis of potential medicinal material is comparatively challenging and needed enough time for clinical trials, testing, permissions for concerned authorities, production and supply. Therefore, researchers usually focused on novel methods incorporated with a high yield of previously approved chemical compounds. This present review article has focused on the synthesis of medicinally important quinazolines and their derivatives, which produce reaction products in less time with high yields, including more attention with eco-friendly green synthesis approaches incorporating multicomponent reactions (MCR), ionic liquids and microwave irradiations.

scholarly journals PRAVADOLINE SYNTHESIS USING AN IMIDAZOLIUM-BASED IONIC LIQUID AS A GREEN SOLVENT

2011 ◽  
Vol 14 (3) ◽  
pp. 79-86
Author(s):  
Nam Thanh Son Phan ◽  
Ha Vu Le
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Acid Catalyst ◽  
High Yield ◽  
Viet Nam ◽  
Pharmaceutical Chemical ◽  
Green Solvents ◽  
Green Solvent ◽  
1H And 13C Nmr ◽  
Lewis Acid Catalyst

An easily accessible ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) was synthesized, and characterized using 1H and 13C NMR, and MS. The ionic liquid was demonstrated to be an efficient green solvent for the synthesis of pravadoline, one of non-steroidal drugs. High yield was achieved without the presence of an anhydrous Lewis acid catalyst. The reaction was also successfully carried out using other imidazolium-based ionic liquids, including 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM][PF6]), and 1-octyl-3- methylimidazolium hexafluorophosphate ([OMIM][PF6]). To our best knowledge, this is the first report in Viet Nam on the synthesis of a pharmaceutical chemical in ionic liquids as green solvents.

scholarly journals Polymerizable Ionic Liquids for Solid-State Polymer Electrolytes

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 324 ◽  
Author(s):  
Robert Löwe ◽  
Thomas Hanemann ◽  
Andreas Hofmann
Keyword(s):  
Ionic Liquids ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
High Yield ◽  
Dsc Analysis ◽  
Energy Storage Devices ◽  
Methyl Group ◽  
Storage Devices ◽  
Alkyl Groups ◽  
Phase Transition Temperatures

Eight new polymerizable ammonium-TFSI ionic liquids were synthesized and characterized with respect to an application in energy storage devices. The ionic liquids feature methacrylate or acrylate termination as polymerizable groups. The preparation was optimized to obtain the precursors and ionic liquids in high yield. All products were characterized by NMR and IR spectroscopy. Phase transition temperatures were obtained by DSC analysis. Density, viscosity and ionic conductivity of the ionic liquids were compared and discussed. The results reveal that the length of attached alkyl groups as well as the methyl group at the polymerizable function have significant influences on the ionic liquids physicochemical properties. Ionic conductivity values vary between 0.264 mS cm−1 for [C2NA,22]TFSI and 0.080 mS cm−1 for [C8NMA,22]TFSI at 25 °C. Viscosity values are within a range of 0.762 Pa s for [C2NA,22]TFSI and 1.522 Pa s for [C6NMA,22]TFSI at 25 °C.

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