Abstract We describe herein the catalytic asymmetric fluorination of α-cyanophosphonates using chiral Pd (II)-bisphosphine complexes. While metal complexes failed to promote the reaction alone, a reaction system involving Pd (II) and organic base such as 2, 6-lutidine was developed. The Pd (II) complex activates the substrates through coordination of the nitrile group, and 2, 6-lutidine abstracts an acidic proton, thereby affording the desired ...