, Cl 2 was added dropwise to a solution of lithium bis(trifluoromethylsulfonyl)imide. The solution was stirred at room temperature overnight. After concentration, the organic phase was washed several times with water until the
The procedure used for ,
, Triethylammonium bis(trifluoromethylsulfonyl)imide
, Water content: 15 ppm. 1 H NMR (CD 2 Cl 2 ): ? 1
, A solution of NaBF 4 and [BMIm][Cl] was vigorously stirred at room temperature for 4 days in CH 2 Cl 2. The reaction mixture was filtered and concentrated on a Rotavapor. The obtained viscous liquid was dissolved in water and extracted by CH 2 Cl 2. The CH 2 Cl 2 was then evaporated and
, OTf] was obtained as a colorless viscous liquid (86% yield)
, Cl] was vigorously stirred at room temperature for 4 days in dichloromethane. The reaction mixture was filtered and concentrated on a Rotavapor. The obtained viscous liquid was dissolved in dichloromethane and NaCl was extracted by water. The CH 2 Cl 2 was then evaporated
About the Acidity-Catalytic Activity,
URL : https://hal.archives-ouvertes.fr/hal-02001586
, butyl-3-methylimidazolium hexafluoro-antimonate [BMIm
, Water content: 15 ppm. 1 H NMR (CD 2 Cl 2 ): ? 0
, A freshly distilled 1-methylimidazole was added dropwise to 1 equivalent of butanesultone in dry toluene. The solution was stirred for 1h at room temperature and refluxed for 12 h. A precipitate formed. It was filtered, washed repeatedly with toluene and Et 2 O. The product was then dried under vacuum at 40°C. The zwitterion [MeIm(CH 2 ) 4 SO 3 ] was obtained as a white solid
, Dropwise addition of 1 eq of HOTf to [MeIm(CH 2 ) 4 SO 3 ] in dry toluene yields to the formation of an oily product which was repeatedly washed with toluene and finally dried under vacuum
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