Asymmetric Catalysis in Ionic Liquids

Abstract

Ionic Liquids are becoming increasingly attractive as alternative media for organic synthesis. Strategies such as the use of biocatalysts, chiral ionic liquids, chiral reagent and/or catalysts, have been employed to achieve asymmetric transformations in ionic liquids. The focus of this review is on the developments made in asymmetric catalysis using organometallic and organocatalysts in ionic liquids.

Flammability and Thermal Analysis Characterization of Imidazolium-Based Ionic Liquids

“…Over the past decade, interest in ionic liquids, which are salts that melt below 100 °C, has grown exponentially – because they exhibit unique properties that make them candidates for use in many applications. Ionic liquids have a wide spectrum of potential applications, including use as alternative solvents for many types of chemical transformations, – as catalysts, – and to make nanoparticles compatible with polymers. – Ionic liquids are typically composed of organic cations and inorganic anions.…”

“…Over the past decade, interest in ionic liquids, which are salts that melt below 100 °C, has grown exponentially – because they exhibit unique properties that make them candidates for use in many applications. Ionic liquids have a wide spectrum of potential applications, including use as alternative solvents for many types of chemical transformations, – as catalysts, – and to make nanoparticles compatible with polymers. – Ionic liquids are typically composed of organic cations and inorganic anions. Some of the more common ions that can be combined to form ionic liquids are shown in Figure , although these represent only a small fraction of the possible ionic liquids.…”

Structural modifications of nucleosides in ionic liquids

“…Most important, their properties of these ‘designer materials’ can be adjusted to the reaction needs by proper manipulation of cations and anions [17-19]. Apart from tunable physical and chemical properties of ionic liquids, their immiscibility with various organic solvents enables the biphasic separation of the desired products and recyclability of expensive catalysts [20-22]. Furthermore, their ability to dissolve complex molecules such as nucleosides and amino acids helps to perform efficient modification on these biologically active compounds under milder conditions [23-26].…”