Suzuki, Shoko published the artcileAsymmetric fluorination of β-keto esters catalyzed by chiral rare earth perfluorinated organophosphates, COA of Formula: C6H5F4NO3S, the publication is Tetrahedron: Asymmetry (2006), 17(4), 504-507, database is CAplus.
Novel chiral rare earth metal complexes bearing perfluorinated binaphthyl phosphate ligand RE[(R)-F8BNP]3 (RE = rare earth; F8BNP = 5,5′,6,6′,7,7′,8,8′-octafluoro-1,1′-binaphthyl-2,2′-diyl phosphate) have been synthesized and used as a catalyst for the asym. electrophilic fluorination reaction of β-keto esters. The target catalysts are tris[(11bR)-8,9,10,11,12,13,14,15-octafluoro-4-(hydroxy-κO)dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin 4-(oxide-κO)]scandium, lanthanum, gadolinium, ytterbium, indium complexes. The use of Sc[(R)-F8BNP]3 catalyst in combination with 1-fluoropyridinium triflate (NFPY-OTf) as a fluorinating agent was found to give the desired α-fluoro-β-keto esters in high chem. yields and enantiomeric excesses (up to 88% ee) under mild conditions.
Tetrahedron: Asymmetry 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 C5H6BNO2, COA of Formula: C6H5F4NO3S.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem