Phosphorus oxide (P4O10) → Trifluoromethanesulfonic anhydride

HRID 1834102Notes

Reaction equation

HRID 1834102 reaction equation
O=P12OP3(OP(OP(O3)(O1)=O)(=O)O2)=O.[C:15]([S:19]([OH:22])(=[O:21])=[O:20])([F:18])([F:17])[F:16]>>[S:19]([O:22][S:19]([C:15]([F:18])([F:17])[F:16])(=[O:21])=[O:20])([C:15]([F:18])([F:17])[F:16])(=[O:21])=[O:20]

Participants

3

Reactant 2

HCID 14812Phosphorus oxide (P4O10)HCID 62406Trifluoromethanesulfonic acid

Product 1

HCID 67749Trifluoromethanesulfonic anhydride

Procedure

Triflic anhydride was prepared as follows: 170 g. (100 ml.) CF3SO3H ("Fluorochemic acid" 3M Company) and 135 g. P2O5 were mixed carefully, shaken well, and stored 18 hours protected from moisture. The product was distilled from the resulting solid mass using a flame; the fraction boiling 80°-90° C. was collected. Re-distillation of this fraction yielded 119.45 . (74%) of triflic anhydride boiling 82°-84° C.

Workup

  1. distillationThe product was distilled from the resulting solid mass
  2. customboiling 80°-90° C.
  3. customwas collected

Sources & evidence

ORD record
ord-961fc3a2bf944d1dafa6beba4217d0ee
Source dataset
uspto-grants-1978_01
Patent number
US04068078

Reaction notes

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