反应详情

温度

24 °C

To a 500 ml round bottom flask was added 1-ethyl-3methylimidazolium chloride (Emim-Cl, 98%, 61.0 g) and reagent grade acetone (500 ml). The mixture was gently warmed (50 degrees C.) until almost all of the Emim-Cl dissolved. To a separate 500 ml flask was added potassium 1,1,2,2-tetrafluoroethanesulfonate (TFES-K, 90.2 g) along with reagent grade acetone (350 ml). This second mixture was stirred magnetically at 24 degrees C. until all of the TFES-K dissolved. These solutions were combined in a 1 l flask producing a milky white suspension. The mixture was stirred at 24 degrees C. for 24 hrs. The KCl precipitate was then allowed to settle leaving a clear green solution above it. The reaction mixture was filtered once through a celite/acetone pad and again through a fritted glass funnel to remove the KCl. The acetone was removed in vacuo first on a rotovap and then on a high vacuum line (4 Pa, 25 degrees C.) for 2 hr. The product was a viscous light yellow oil (76.0 g, 64% yield).

1. dissolutiondissolved
2. customThese solutions were combined in a 1 l flask
3. customproducing a milky white suspension
4. stirringThe mixture was stirred at 24 degrees C
5. customto settle leaving a clear green solution above it
6. filtrationThe reaction mixture was filtered once through a celite/acetone pad and again through a fritted glass funnel
7. customto remove the KCl
8. customThe acetone was removed in vacuo first on a rotovap
9. waiton a high vacuum line (4 Pa, 25 degrees C.) for 2 hr