The sulfinatodeiodination reagent Ce4+-NaHSO3 initiates the addition of perfluoroalkyl iodides to olefins at 50-70癈 to give the corresponding adducts in good yield. Similarly, SO3-?generated from Fe3+-NaHWSO3 system can also initiate the same addition although the reagent was not able to cause sulfinatodeiodination. Furthermore it was shown that in the presence of sodium perfluoroalkanesulfinate the same addition also took place and there was no exchange of the perfluoroalkyl groups between sodium perfluoroalkenesulfinate and perfluoroalkyl iodide.

Key words: SODIUM COMPOUNDS, INITIATOR, ALKANE P, ALKENE P, IODATE, FREE RADICAL REACTION, ADDITION REACTION, IODOHYDROCARBON, PERFLUORO-HYDROCARBON, PERFLUORO-HYDROCARBON