Difluoro(fluorosulphonyl)acetyl fluoride → CH2=C(CF2Ocf2CF2SO2F)2

HRID 492277

Reaction equation

HRID 492277 reaction equation
[CH2:1]=[C:2]([C:11](OS(F)(=O)=O)([F:13])[F:12])[C:3]([O:6][S:7]([F:10])(=[O:9])=[O:8])([F:5])[F:4].[F:19][S:20]([C:23]([C:26]([O:29][K])([F:28])[F:27])([F:25])[F:24])(=[O:22])=[O:21].[F-:31].[K+].[F:33][S:34]([C:37]([C:40]([F:42])=[O:41])([F:39])[F:38])(=[O:36])=[O:35]>COCCOCCOC.O>[CH2:1]=[C:2]([C:3]([O:6][S:7]([F:10])(=[O:9])=[O:8])([F:5])[F:4])[C:11]([F:13])([F:19])[F:12].[CH2:1]=[C:2]([C:11]([O:41][C:40]([C:37]([S:34]([F:33])(=[O:36])=[O:35])([F:39])[F:38])([F:31])[F:42])([F:13])[F:12])[C:3]([O:29][C:26]([C:23]([S:20]([F:19])(=[O:22])=[O:21])([F:25])[F:24])([F:28])[F:27])([F:5])[F:4]

Participants

8

Reactant 4

HCID 69614Difluoro(fluorosulphonyl)acetyl fluorideHCID 522689Potassium FluorideHCID 10471472CH2=C(CF2Oso2F)2HCID 178527443HCID 178527443, compound

Product 2

HCID 87741755CH2=C(CF3)CF2Oso2FHCID 131726625CH2=C(CF2Ocf2CF2SO2F)2Yield 58%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8150DiglymeSolvent

Conditions

Temperature
20 °C

Procedure

CH2═C(CF2OSO2F)2 is added gradually to FSO2CF2CF2OK, which is prepared from freshly dried KF (3.9 g, 0.067 mole) and FSO2CF2COF (12 g, 0.067 mole) in dry diglyme (30 ml). The resulting mixture is stirred 3 hours at 20° C. The reaction mixture is poured into water. The organic layer is washed with aqueous sodium bicarbonate, then water, and then dried over MgSO4. Distillation gives CH2═C(CF3)CF2OSO2F (0.5 g) and CH2═C(CF2OCF2CF2SO2F)2 (9 g, 58% yield, b.pt. 95-96° C. at 15 mm Hg).

Workup

  1. washThe organic layer is washed with aqueous sodium bicarbonate
  2. dry with materialwater, and then dried over MgSO4
  3. distillationDistillation

Sources & evidence

ORD record
ord-daa31aa198fd43f28910e7fc0418ebc5
Source dataset
uspto-grants-2009_05
Patent number
US07531689B2

Linked notes

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