Method for producing trifluoromethanesulfonic anhydride

Details Method for producing trifluoromethanesulfonic anhydride Method for producing trifluoromethanesulfonic anhydride

2006-10-24

2010-06-22

Parsa, Jafar (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic anhydrides group

Reexamination Certificate

active

07741518

ABSTRACT:
This method for producing trifluoromethanesulfonic anhydride reacting trifluoromethanesulfonic acid with phosphorus pentoxide to produce trifluoromethanesulfonic anhydride, wherein hardening of the reaction solution due to polyphosphoric acid, which is produced as a byproduct, is prevented by using an excess amount of trifluoromethanesulfonic acid with respect to the phosphorus pentoxide.

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