全氟烷基磺酰碘的化学

Chemistry of Perfluoroalkane Sulfonyl Iodide

全氟烷基磺酰氟和磺酰氯的化学已有广泛的研究,对于全氟烷基磺酰溴则直到最近才有较为详尽的工作[1],但迄今尚未见有关全氟烷基磺酰碘的报道.芳基磺酰碘比较稳定.

The reaction between silver perfluoroalkanesulfinate and iodine in dichloromethaneat low temperature(e.g.-30℃)resulted in the formation of the correspondingperfluoroalkanesulfonyl iodide which was identified by its 19F NMR spectra.Thesulfonyl iodide generatded in situ reacted with various olefins to form two series ofadducts,namely the normal adducts RfSO2CH2CHIR(3)and the adducts resultingfrom the simultaneous loss of SO2 moiety,RfCH2CHIR(4)in yields varying frommoderate to good.