Pyranoside Phosphite-Oxazoline Ligand Library: Highly Efficient Modular P,N Ligands for Palladium-Catalyzed Allylic Substitution Reactions. A Study of the Key Palladium Allyl Intermediates
We have screened a library of modularphosphite-oxazolineligands for asymmetric allylic substitution reactions. The library is efficiently prepared from the commercially available and cheap D-glucosamine. The introduction of a phosphite moiety into the ligand design is highly advantageous for the product outcome. Therefore, this ligandlibrary affords good-to-excellent reaction rates [TOFs up to 600