A third generation chiral phosphorus-containing dendrimer as ligand in Pd-catalyzed asymmetric allylic alkylation

In situ complexation of a dendrimer possessing 24 chiral iminophosphine end groups affords a [Pd]-catalyst usable for asymmetric allylic alkylations. This dendritic catalyst gives very good ee and can be easily recovered and reused twice with almost the same efficiency.