Efficient electrophilic fluorination of β-dicarbonyl compounds with the selectfluor reagent F-TEDA-BF<sub>4</sub>{1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)}
作者:R. Eric Banks、Nicholas J. Lawrence、Allan L. Popplewell
DOI:10.1039/c39940000343
日期:——
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).
1,3-二羰基化合物(包括无环和环状1,3-二酮、β-酮酯、β-酮酰胺)能够高效转化为2-单氟衍生物,进而通过1-氯甲基-4-氟-1,4-二氮杂双环[2.2.2]辛烷双(四氟硼酸盐)转化为2,2-二氟衍生物。