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Evidence of Phosphonium‐Carbenium Dication Formation in a Superacid: Precursor to Fluorinated Phosphine Oxides
Author(s) -
Castelli Ugo,
Lohier JeanFrançois,
Drukenmüller Ines,
Mingot Agnès,
Bachman Christian,
Alayrac Carole,
Marrot Jérôme,
Stierstorfer Karin,
Kornath Andreas,
Gaumont AnnieClaude,
Thibaudeau Sébastien
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201811032
Subject(s) - phosphonium , phosphine , dication , superacid , chemistry , nuclear magnetic resonance spectroscopy , carbenium ion , spectroscopy , photochemistry , organic chemistry , catalysis , ion , physics , quantum mechanics
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.