反应详情

1-Butyl-3-methylimidazolium chloride (Bmim-Cl, 10.0 g) and deionized water (15 ml) were combined at room temperature in a 200 ml flask. At room temperature in a separate 200 ml flask, potassium 1,1,2-trifluoro-2-(trifluoromethoxy)ethanesulfonate (TTES-K, 16.4 g) was dissolved in deionized water (90 ml). These two solutions were combined at room temperature and allowed to stir magnetically for 30 min. under positive nitrogen pressure to give a biphasic mixture with the desired ionic liquid as the bottom phase. The layers were separated, and the aqueous phase was extracted with 2×50 ml portions of methylene chloride. The combined organic layers were dried over magnesium sulfate and concentrated in vacuo. The colorless oil product was dried at for 4 hr at 5 Pa and 25° C. to afford 15.0 g of product.

1. customwere combined at room temperature
2. customto give a biphasic mixture with the desired ionic liquid as the bottom phase
3. customThe layers were separated
4. extractionthe aqueous phase was extracted with 2×50 ml portions of methylene chloride
5. dry with materialThe combined organic layers were dried over magnesium sulfate
6. concentrationconcentrated in vacuo
7. customThe colorless oil product was dried at for 4 hr at 5 Pa and 25° C.