sodium chloride in liquid sulphur dioxide -65°C; React. followed by (19)F-NMR.;

NAF in liquid sulphur dioxide {SF2Cl}(1+)*{AsF6}(1-) reacted with unhydrous NaF in liquid SO2 at -65°C for 1 h. The mixt. was warmed to -30°C and then to 25°C over 1 h.; SF4 was detected by (19)F-NMR; products not isolated.;

NAF in liquid sulphur dioxide {SF2Cl}(1+)*{AsF6}(1-) reacted with unhydrous NaF in liquid SO2 at -65°C for 1 h. The mixt. was warmed to -30°C and then to 25°C over 1 h.; SF4 was detected by (19)F-NMR; products not isolated.;

NAF in liquid sulphur dioxide {SF2Cl}(1+)*{AsF6}(1-) reacted with unhydrous NaF in liquid SO2 at -65°C for 1 h. The mixt. was warmed to -30°C and then to 25°C over 1 h.; SF4 was detected by (19)F-NMR; products not isolated.;