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EXPEDITIOUS SOLVENT-FREE PREPARATION OF IONIC LIQUIDS USING MICROWAVES
Citation:
Varma*, R S. AND V Namboodiri**. EXPEDITIOUS SOLVENT-FREE PREPARATION OF IONIC LIQUIDS USING MICROWAVES. Presented at IUPAC CHEMRAWN XIV Conf, Towards Environmentally Benign Processes and Products, U of Colorado, Boulder, CO, 6/9-13/2001.
Description:
Ambient temperature ionic liquids comprising 1,3-dialkylimidazolium cations have shown great promise as alternative solvents in view of their negligible vapor pressure, ease of handling and potential for recycling. An efficient solventless protocol for the preparation of a wide variety of ionic liquids will be described which requires a simple exposure of admixed 1-methylimidazole and alkylhalides to microwave irradiation in open glass containers. The details of this clean process using a common household microwave oven will be presented which exploits the newer inverter technology system for better power attenuation. The characterization and thermal stability data on the synthesized ionic liquids will also be summarized.