Efficient Electrophilic Fluorination of β-Dicarbonyl Compounds with the Selectfluor Reagent F-TEDA-BF4 octane bis(tetrafluoroborate)>

Article abstract of DOI:10.1039/c39940000343

1,3-Dicarbonyl compounds (acyclic and cyclic 1,3-diketones, β-ketoesters, β-ketoamides) are converted efficiently to 2-monofluoro derivatives, and thence to 2,2-difluoro derivatives, with 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo<2.2.2>octane bis(tetrafluoroborate).