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Evidence of Phosphonium-Carbenium Dication Formation in a Superacid: Precursor to Fluorinated Phosphine Oxides

Abstract : Unambiguously confirmed by low‐temperature in situ NMR experiments, X‐ray diffraction and vibrational spectroscopy, phosphonium‐carbenium superelectrophiles are shown to be generated in strong acidic conditions. Representing crucial intermediates, their exploitation allows for the synthesis of unprecedented fluorinated (cyclic) phosphine oxides.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02159927
Contributor : Carole Witulski-Alayrac <>
Submitted on : Wednesday, June 19, 2019 - 10:38:47 AM
Last modification on : Friday, October 9, 2020 - 9:52:25 AM

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Ugo Castelli, Jean-François Lohier, Ines Drukenmüller, Agnès Mingot, Christian Bachman, et al.. Evidence of Phosphonium-Carbenium Dication Formation in a Superacid: Precursor to Fluorinated Phosphine Oxides. Angewandte Chemie International Edition, Wiley-VCH Verlag, 2019, 58 (5), pp.1355-1360. ⟨10.1002/anie.201811032⟩. ⟨hal-02159927⟩

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