Journal of Fluorine Chemistry p. 47 - 50 (1995)
Update date:2022-08-17
Topics:
Kolomeitsev, Alexander A.
Seifert, Frank U.
Roeschenthaler, Gerd-Volker
Bromophosphonium bromides, R3PBr(+)Br(-) (R = nBu, NMe2, NEt2) are easily fluorinated using zinc difluoride in pyridine or tetramethylammonium fluoride in methylene chloride to give the corresponding difluorophosphoranes R3PF2 in high yield.A simple procedure for preparing pure tetramethylammonium fluoride is described. - Keywords: Preparation; Difluorophosphoranes; Anhydrous zinc; Tetramethylammonium fluorides; NMR spectroscopy
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