Preparation of Halo-F-Methanes via Potassium Fluoride-Halogen Cleavage of Halo-F-Methylphosphonium Salts

摘要

Treatment of halo-F-methylphosphonium salts with potassium fluoride and halogen (I2, Br2, ICl, IBr) gives modest yields of halo-F-methanes. This method of preparation augments the classical Hunsdiecker approach to these materials.