Synthesis of axially chiral cyclic amine-substituted 2 -(oxazolinyl )pyridine ligands for catalytic asymmetric fluorination of β-keto esters

Novel optically active N,N,N-tridentate ligands, which possess both binaphthyl axial chirality and carbon-centered chirality, were prepared and successfully used in the catalytic asymmetric α-fluorination of β-keto esters giving ee values up to 94%.