Reaktion #7319

Reaktionsgleichung

pentafluoroethanesulfonic anhydride

pentafluoroethanesulfonic acid

dimethyl carbonate

→

methyl pentafluoroethanesulfonate

Ausbeute 84.1%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturreflux
2. 2
   Temperaturcooling
3. 3
   workup.STIRRINGThe solution is stirred for one hour at a temperature of 60° C. and subsequently for a further 3 hours at 110° C
4. 4
   workup.DISTILLATIONAfter distillation, 5.41 g of methyl pentafluoroethanesulfonate
5. 5
   Sonstigeare isolated (boiling range: 114–115° C., yield: 84.1%)

Vorschrift

5.74 g (15.0 mmol) of pentafluoroethanesulfonic anhydride and 0.31 g (1.55 mmol) of pentafluoroethanesulfonic acid are initially introduced in a 10 ml round-necked flask. 1.35 g (15.0 mmol) of dimethyl carbonate are added at room temperature with constant stirring and reflux cooling. The solution is stirred for one hour at a temperature of 60° C. and subsequently for a further 3 hours at 110° C. After distillation, 5.41 g of methyl pentafluoroethanesulfonate are isolated (boiling range: 114–115° C., yield: 84.1%).

Quelle