Sulfides tethered to oxazolines function as effective ligands for palladium catalysed allylic substitution, affording good to excellent levels of enantioselectivity (56 to >96% ee). Both the tether length between the nitrogen and sulfur atoms and also the nature of the sulfide have been shown to affect the performance of these ligands.
Dawson, G. J., Frost, C. G., Martin, C. J., Williams, J. M. J., & Coote, S. J. (1993). Sulfides tethered to oxazolines: Ligands for enantioselective catalysis. Tetrahedron Letters, 34(48), 7793-7796. https://doi.org/10.1016/S0040-4039(00)61568-X