New General Method for Preparation of Pentafluorosulfur-SubstitutedFluorocarbons: Synthesis of Perfluoroneopentylsulfur Pentafluoride Using Elemental Fluorine as a Reagent

摘要

The reaction of elemental fluorine with neopentyl mercaptan resulted in a 24.5yield of perfluoroneopentylsulfur pentafluoride. The 19F and 13C(19F) NMR assignments of this novel compound are reported. This new material shows promise as a dielectric material and for providing an electron capture atmosphere in high voltage devices and extraterrestrial satellites. We wish to report the synthesis of a very sterically crowded and extraordinarily interesting new compound, perfluoroneopentylsulfur pentafluoride. The reaction chemistry is unusual, and one might have predicted that such a compound would be unstable and that it might not be isolable due to steric difficulties. However, we have found that it is a stable organofluorine compound with very unusual properties.