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Ionic Liquids: Synthesis and Applications in Catalysis

06/03/2013 · Applications of ionic liquids in organic synthesis and catalysis

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Applications of Ionic Liquids in Organic Synthesis Authors ..

FISCHER INDOLE SYNTHESIS
41–92% product yield was achieved by using chloroaluminate ionic liquid both as a solvent and catalyst.
The procedure proved safer with respect to the amount of catalyst, its hazard, and cost.

9.

out enzyme-catalyzed reactions and other types of biotransformations in ionic liquids

Solidification of fluidic ionic liquids into porous materials yields porous ionic networks that combine the unique characteristics of ionic liquids with the common features of polymers and porous materials. This minireview reports the most recent advances in the design of porous ionic liquids. A summary of the synthesis of ordered and disordered porous ionic liquid-based nanoparticles or membranes with or without templates is provided, together with the new concept of room temperature porous ionic liquids. As a versatile platform for functional materials, porous ionic liquids have shown widespread applications in catalysis, adsorption, sensing, actuation, etc. This new research direction towards ionic liquids chemistry is still in its early stages but has great potential.

Chiral Ionic Liquids: Design, Synthesis and Applications in

applications and features of ionic liquids: properties, catalysis & catalysts and ..

AB - Solidification of fluidic ionic liquids into porous materials yields porous ionic networks that combine the unique characteristics of ionic liquids with the common features of polymers and porous materials. This minireview reports the most recent advances in the design of porous ionic liquids. A summary of the synthesis of ordered and disordered porous ionic liquid-based nanoparticles or membranes with or without templates is provided, together with the new concept of room temperature porous ionic liquids. As a versatile platform for functional materials, porous ionic liquids have shown widespread applications in catalysis, adsorption, sensing, actuation, etc. This new research direction towards ionic liquids chemistry is still in its early stages but has great potential.

N2 - Solidification of fluidic ionic liquids into porous materials yields porous ionic networks that combine the unique characteristics of ionic liquids with the common features of polymers and porous materials. This minireview reports the most recent advances in the design of porous ionic liquids. A summary of the synthesis of ordered and disordered porous ionic liquid-based nanoparticles or membranes with or without templates is provided, together with the new concept of room temperature porous ionic liquids. As a versatile platform for functional materials, porous ionic liquids have shown widespread applications in catalysis, adsorption, sensing, actuation, etc. This new research direction towards ionic liquids chemistry is still in its early stages but has great potential.

APPLICATIONS OF IONIC LIQUIDS IN ORGANIC SYNTHESIS …

Applications of Ionic Liquids in Organic Synthesis† Hua Zhao and Sanjay V

ABSTRACT: A mesoinic pyridylideneamide ligand (PYA) was synthetized and fully characterized and coordinated to an iridium(III) center. This ligand represents the first example of a mesoionic N-donor ligand. Structural and spectroscopic analysis revealed unique properties which were exploited in chemically driven water oxidation catalysis.

We are fascinated by the diversity of effects that ligands can have to instigate new properties in transition metal complexes and we are therefore strongly interested in designing and developing new ligands that impart specific properties to the metal center. One of these ligands are triazolylidenes, a mesoionic carbene that we discovered in 2008. This ligand offers various opportunities for catalysis, including strong electron donor properties, a high synthetic flexibility that allows for a wide variety of functional and chelating groups to be incorporated, and a high polarity, which imparts solubility in water and other polar media. We have obtained evidence in a variety of catalytic reactions like nickel-catalysed hydrosilylation, ruthenium-catalyzed alcohol dehydrogenation, or iridium-catalyzed water oxidation, that the triazolylidene ligand scaffold is controlling the reactivity of the coordinated metal center. Because of the synthetic versatility and the easy accessibility of the ligand, tailoring of the ligand properties is straightforward and we have disclosed improved catalytic activity by ligand tuning. More recently, we have discovered a straightforward approach to functionalize the ligand on the complex as opposed to the more traditional approach of preparing a functional ligand and only then install the metal center. This approach gives rapid access to a large diversity of functionalized ligands in a very last step, and to ligand scaffolds that are not accessible by traditional routes.

The present review is aimed at exploring the applications of ionic liquids in catalysis as acid, ..
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  • Applications of Ionic Liquids in Organic Synthesis - …

    Information about the open-access article 'Ionic Liquids: Synthesis and Applications in Catalysis' in DOAJ

  • Applications of Ionic Liquids in Polymer Science and..

    Ionic liquids as transesterification catalysts: applications for the synthesis of linear and cyclic organic carbonates

  • Applications of ionic liquids in ..

    Chiral Ionic Liquids: Design, Synthesis and Applications in Asymmetric Organo- Catalysis

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Ionic liquids: applications in catalysis - ScienceDirect

Synergistic effect of ultrasound and deep eutectic solvent choline
chloride–urea as versatile catalyst for rapid synthesis of β-functionalized ketonic derivatives, Journal
of Molecular Liquids, 195, 188–193.
9.

Ionic liquids: applications in catalysis

in [BMIM][Cl]/methylcyclohexane.
Tenfold improvement in the catalytic activity due to the higher solubility of the substrates in the ionic liquid.
Enhanced selectivity was observed as formation of cinnamyl alcohol & phosphanium salts are suppressed.

CONCLUSION
Multifunction of ILs.

Eco-friendly behaviour based reaction

Based on the properties of easy separation , low toxicity, selective miscibility

ILs play an important role in organic synthesis as the green alternative solvent.

With the the development of multifunctional ILs, we can expect ILs would apply in more fields .

REFERENCES
Any Questions?????
1.

Applications Ionic | Ester | Catalysis

(2014) L-(+)-Tartaric acid and choline chloride based deep eutectic
solvent: An efficient and reusable medium for synthesis of N-substituted pyrroles via Clauson-Kaas
reaction, Journal of Molecular Liquids, 198, 259–262.

RECENT WORK ON ILs IN PAKISTAN
Ionic Liquid Modified Resin for the Adsorptive Removal of Dibutyl Phthalate: Equilibrium, Kinetic, and Thermodynamic Studies by Umair Qureshi, Saima Memon, University of Sindh, Jamshoro, Pakistan

Eco-Friendly Synthesis of Thiazolidinone Derivatives and their Biological Studies by Muhammad Naeem in University of The Punjab, Lahore

Dr.

Catalysis in Ionic Liquids (RSC Publishing)

We are fascinated by the diversity of effects that ligands can have to instigate new properties in transition metal complexes and we are therefore strongly interested in designing and developing new ligands that impart specific properties to the metal center. One of these ligands are triazolylidenes, a mesoionic carbene that we discovered in 2008. This ligand offers various opportunities for catalysis, including strong electron donor properties, a high synthetic flexibility that allows for a wide variety of functional and chelating groups to be incorporated, and a high polarity, which imparts solubility in water and other polar media. We have obtained evidence in a variety of catalytic reactions like nickel-catalysed hydrosilylation, ruthenium-catalyzed alcohol dehydrogenation, or iridium-catalyzed water oxidation, that the triazolylidene ligand scaffold is controlling the reactivity of the coordinated metal center. Because of the synthetic versatility and the easy accessibility of the ligand, tailoring of the ligand properties is straightforward and we have disclosed improved catalytic activity by ligand tuning. More recently, we have discovered a straightforward approach to functionalize the ligand on the complex as opposed to the more traditional approach of preparing a functional ligand and only then install the metal center. This approach gives rapid access to a large diversity of functionalized ligands in a very last step, and to ligand scaffolds that are not accessible by traditional routes.

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