Synthesis and application of planar-chiral phosphaferrocene-oxazolines, a new class of P,N-ligands

[GRAPHICS] The synthesis of several phosphaferrocene-oxazolines, members of a new family of planar-chiral ligands, is described. These bidentate P,N-ligands are applied to enantioselective palladium-catalyzed allylic alkylations, for which it is shown that the planar-chirality of the phosphaferrocene, not the chirality of the oxazoline, determines the stereochemical outcome of the reaction.