Reaction #1256726

ord-206ff77da73d4f0baa4dc2a2aab35b03

Reaction equation

[F-].[K+]
KF
O=S1(=O)CCCCO1
1,4-butane sultone
O=S(=O)(O)CCCCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F
C4F9O(CH2)4SO3H
[NH4+]
ammonium
→
O=S(=O)(CCCCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F)[O][K]
n-C4F9OC4H8SO3K

Reactants

[F-].[K+]
KF
O=S1(=O)CCCCO1
1,4-butane sultone
—
perfluorobutyl acid fluoride
O=S(=O)(O)CCCCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F
C4F9O(CH2)4SO3H
[NH4+]
ammonium
—
sulfonic acid

Reagents

None

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Otherisolated in 92% purity

Procedure

n-C4F9OC4H8SO3K was prepared from normal-perfluorobutyl acid fluoride, KF and 1,4-butane sultone and isolated in 92% purity as described in U.S. Pat. No. 6,890,452, as FC-11. The sulfonic acid salt was converted to the corresponding acid through an ion-exchange column packaged with acidified Amberlite IR-120 ion-exchange resin. The corresponding ammonium salt was prepared by adjusting the pH of C4F9O(CH2)4SO3H aqueous solution to ˜10 with 10% aqueous ammonium solution.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07824755B2uspto-grants-2010_11