Potassium 1,1,2,2-tetrafluoroethanesulfonate → HCID 178442896, compound

HRID 1985578Notes

Reaction equation

[Cl-].[CH2:2]([N+:20]1[CH:24]=[CH:23][N:22]([CH3:25])[CH:21]=1)[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19].[F:26][C:27]([F:35])([S:31]([O-:34])(=[O:33])=[O:32])[CH:28]([F:30])[F:29].[K+]>CC(C)=O>[F:26][C:27]([F:35])([S:31]([O-:34])(=[O:33])=[O:32])[CH:28]([F:30])[F:29].[CH2:2]([N+:20]1[CH:24]=[CH:23][N:22]([CH3:25])[CH:21]=1)[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19]

Participants

Conditions

Temperature: 60 °C

Procedure

1-Octadecyl-3-methylimidazolium chloride (17.0 g, 0.0458 moles) was partially dissolved in reagent-grade acetone (200 ml) in a large round-bottomed flask and stirred vigorously. Potassium 1,1,2,2-tetrafluoroethanesulfonate (TFES-K, 10.1 g, 0.0459 moles), was added to reagent grade acetone (200 ml) in a separate round-bottomed flask, and this solution was carefully added to the 1-octadecyl-3-methylimidazolium chloride solution. The reaction mixture was heated at 60° C. under reflux for approximately 16 hours. The reaction mixture was then filtered using a large frit glass funnel to remove the white KCl precipitate formed, and the filtrate was placed on a rotary evaporator for 4 hours to remove the acetone.

Workup

temperatureunder reflux for approximately 16 hours
filtrationThe reaction mixture was then filtered
customto remove the white KCl precipitate
customformed
customthe filtrate was placed on a rotary evaporator for 4 hours
customto remove the acetone

Sources & evidence

ORD record: ord-a351658498b24baea8df0bbe776381f3
Source dataset: uspto-grants-2009_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07544813B2

Reaction notes

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