| abstract |
Mono- and bis-hypofluorites respectively of formula: FO₂S-R f -CF₂OF and FOCF₂-Rʹ f -CF₂OF wherein R f is perfluoroalkylene or perfluorochloroalkylene and Rʹ f is perfluoroalkylene or perfluorooxyalkylene are prepared by a process which is conducted continuously, at a temperature from 0 to 60°C and comprises starting from the respective acyl fluoridesn by reaction of fluorine in the gas phase in the presence of a catalyst consisting of K, Rb, Cs or Ba fluorine, preferably supported on a metal material. |