J. Howell
Aug 1, 1992
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Journal
Journal of Fluorine Chemistry
Abstract
Abstract A careful review of the literature would lead one to believe that coupling reactions between perfluoroalkyl iodides would not occur in aqueous media. Indeed, reduction to the hydroperfluorocarbon is expected. We have found that addition of linear perfluoroalkyl iodides to aqueous suspensions of zinc metal lead to the formation of pure linear perfluoroalkanes. Easily prepared are n-perfluorooctane from C 4 F 9 I, n-C 12 F 26 from C 6 F 13 I, and n-C 16 F 34 from C 8 F 17 I. Mixed materials could be separated easily by physical means. The scope of the reaction as a function of acid strength and concentration, different fluorinated iodoalkanes, different metals, and metal R f I ratio will be reported.