Fujisawa, Hidehito published the artcileSimple procedure for preparation of α-fluoro esters by fluorination of ester enol silyl ethers with perchloryl fluoride, Application In Synthesis of 107263-95-6, the publication is Journal of Fluorine Chemistry (2002), 117(2), 173-176, database is CAplus.
A practical method for general preparation of α-fluoro esters by fluorination of the corresponding enol silyl ethers using diluted FClO3 in the presence of suitable amount of amine is described. Fluorination of ester enol silyl ethers in THF at room temperature using diluted perchloryl fluoride (FClO3) in the presence of ca. 0.5 M eq. of t-BuNH2 as an additive produced the corresponding α-fluoro esters in over 80% yields. For example, fluorination of [(1-ethoxy-2-phenylethenyl)oxy]trimethylsilane with perchloryl fluoride gave α-fluorobenzeneacetic acid Et ester.
Journal of Fluorine Chemistry published new progress about 107263-95-6. 107263-95-6 belongs to pyridine-derivatives, auxiliary class Fluorination reagent, name is 1-Fluoropyridiniumtriflate, and the molecular formula is C6H5F4NO3S, Application In Synthesis of 107263-95-6.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem