Water → HCID 12010419, compound

Participants

Reaction Steps

To 6.61 g of malononitrile (100 mmoles) in solution in 50 ml of THF at −20° C., there is added, in portions, 795 mg of lithium hydride LiH. After 2 hours at −20° C., there is added 20.14 g (100 mmoles) of 1-(trifluoromethanesulfonyl)imidazole) (commercially available from Fluka). The reaction was continued during 4 hours at −20° C., and during 48 hours at room temperature. The solvent was then evaporated and the residue was reclaimed in 60 ml of water. There is then added 14.66 g (100 mmoles) of 1-ethyl-3-methyl-1H-imidazolium chloride (commercially available from Aldrich) to the aqueous solution. A dense phase which is denser than water was immediately formed. This phase was recovered by extraction with dichloromethane. After evaporation of dichloromethane and drying under vacuum at 40° C. of the liquid obtained, a molten salt of 1-ethyl-3-methyl-1H-imidazolium of trifluoromethanesulfonylmalononitrile was obtained, with a purity characterized by a proton, carbon and fluorine RMN higher than 98%.

Provenance & Evidence