Abstract
The reaction of 1-butylpyrrolidine with dimethyl carbonate to yield the ionic liquid precursor, 1-butyl-1-methylpyrrolidinium methylcarbonate, has been investigated under microwave heating conditions and the reaction parameters optimised to achieve 100% yield of the pyrrolidinium salt with no by-products in under 1 h. The reactions of tributylamine, trioctylphosphine, and 1-butylimidazole with dimethyl carbonate under comparable conditions have also been evaluated, yielding the corresponding methylcarbonate salts which can be used as intermediates for the preparation of halide-free ionic liquids without generating any undesirable salt wastes.
Original language | English |
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Pages (from-to) | 407-413 |
Number of pages | 7 |
Journal | Green Chemistry |
Volume | 12 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2010 |
ASJC Scopus subject areas
- Environmental Chemistry
- Pollution