Conversion of Hexafluoropropene Oxide into 2,3,3,3‐tetrafluoro‐2‐iodopropionyl Fluoride by Trimethylsilyl Iodide

Trimethylsilyl iodide, Me₃SiI, reacted in equimolar amount with hexafluoropropene oxide, CF₃CFOCF₂, in the absence of solvent at elevated temperature, which resulted in the formation of iodopropionyl fluoride, CF₃CFICOF, in 43% yield. Iodopropionyl fluoride was converted into its methyl ester, CF₃CFICOOCH₃, by reacting with excess of methanol. The compounds have been purified by GC and characterized by mass, IR, ¹H and ¹⁹F NMR spectroscopy.

Acknowledgments

One of the authors (SKP) is grateful to the Research Institute of Innovative Technology for the Earth (RITE), Japan for a visiting scientist fellowship.