Room Temperature Ionic Liquids as Green Solvent Alternatives in the Metathesis of Oleochemical Feedstocks

Abstract

Abstract:One of the most important areas of green chemistry is the application of environmentally friendly solvents in catalysis and synthesis. Conventional organic solvents pose a threat to the environment due to the volatility, highly flammability, toxicity and carcinogenic properties they exhibit. The recently emerged room temperature ionic liquids (RTILs) are promising green solvent alternatives to the volatile organic solvents due to their ease of reuse, non-volatility, thermal stability and ability to dissolve a variety of organic and organometallic compounds. This review explores the use of RTILs as green solvent media in olefin metathesis for applications in the oleochemical industry.

Anionic structural effect on the dissolution of arabinoxylan-rich hemicellulose in 1-butyl-3-methylimidazolium carboxylate-based ionic liquids

“…Ionic liquids (ILs) have potential for lignocellulosic biomass dissolution as a new class of green solvent because of their excellent physicochemical properties, such as thermally stable, low melting point, low volatility, recyclability, and tunable chemical structure. [16][17][18] ILs has attracted great attention for fractionating lignocellulosic biomass. 19,20 However, the dissolution of hemicellulose in ILs and interaction with ILs are still unclear because of its structural complexity in the plant cell wall.…”

Split-anion solvent extraction of light rare earths from concentrated chloride aqueous solutions to nitrate organic ionic liquids

“…ILs might offer an alternative to conventional organic solvents such as kerosene, because of their negligible vapour pressure (low volatility), very low ammability, little accumulation of static electricity and high chemical stability. [6][7][8][9][10] Thus, using ILs leads to safer and greener extraction processes. 11 In split-anion extraction, different anions are present in the aqueous and organic phases, and metal extraction occurs through ion complexation instead of (an)ion exchange.…”

Auto-Tandem Catalysis in Ionic Liquids: Synthesis of 2-Oxazolidinones by Palladium-Catalyzed Oxidative Carbonylation of Propargylic Amines in EmimEtSO4

“…Considering the importance of the class of products obtained, which are known to possess important pharmacological activities [22,23,24,25], and the current attention devoted to the possibility to carry out catalytic processes in ionic liquids (ILs) as safer and more environmentally friendly solvents with respect to classical VOCs [26,27,28,29,30], coupled to the possibility to recycle the catalytic system, we have herein explored the possibility to perform our process in the ionic liquid EmimEtSO 4 .…”