Trifluoromethyl trifluoromethanesulfonate (CF3SO2OCF3)

Trifluoromethyl trifluoromethanesulfonate ($\text{1}$) was synthesized by the reaction of silver trifluoromethanesulfonate with trifluoromethyl iodide in a benzene solution. Reaction of $\text{1}$ with an enamine gave trifluoromethanesulfonyl compound. This is the first example of SO₂-O bond fission of alkyl trifluoromethanesulfonate.