Solvent Free Synthesis of an Imidazolium based Ionic Liquid under Continuous Flow Conditions
This example illustrates the use of the Vapourtec R-series to safely control the highly exothermic synthesis of the first generation ionic liquid [bmim]Br as well as handling the highly viscous product.
In the past decade the use of ionic liquids (IL) as a replacement for conventional molecular solvents has tremendously increased.
Features that make IL’s attractive for use in organic synthesis in general and catalytic processes in particular are
- their insignificant vapour pressure (even at high temperatures),
- non-flammability,
- high thermal, chemical and electrochemical stability,
- high solvating properties
- ease of recycling.
Another important feature is the possibility of tuning their physical and chemical - properties by varying the nature of the anion and side chain.
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