Interaction of Perfluorinated α-Fluorosulfatocarbonyl Compounds with Nucleophilic Reagents.

Abstract α-Perfluorosulfatoperfluorocarbonyl compounds interact with alkaline metals halogenides to form the corresponding α-halo derivatives as a result of the direct nucleophilic substitution of the FSO 3 group. Through the action of halogenide anions on perfluorinated α,β-bis-fluorosulfatocarbonyl compounds, substitution by halogen of the FSO 3 group in the α-position to the carbonyl takes place. However, the FSO 3 group in the β-position is cleaved, which allows α-substituted β-dicarbonyl derivatives to be obtained.