摘要:
alpha-Perfluorosulfatoperfluorocarbonyl compounds interact with alkaline metals halogenides to form the corresponding alpha-halo derivatives as a result of the direct nucleophilic substitution of the FSO3 group. Through the action of halogenide anions on perfluorinated alpha,beta-bis-fluorosulfatocarbonyl compounds, substitution by halogen of the FSO3 group in the alpha-position to the carbonyl takes place. However, the FSO3 group in the beta-position is cleaved, which allows alpha-substituted beta-dicarbonyl derivatives to be obtained.