PS-PEG resin-supported palladium–MOP complexes. Application in asymmetric π-allylic reduction

Homochiral palladium complexes of polymeric 2′-, 6-, and 6′-anchored 2-diphenylphosphino-1,1′-binaphthyl (MOP) ligands were prepared on polystyrene-poly(ethylene glycol) (PS-PEG) resin. The PS-PEG resin-supported palladium–MOP complexes exhibited high catalytic activity, stereoselectivity (up to 80% ee), and recyclability (six times) in the asymmetric allylic reduction of 1-vinyl-1,2,3,4-tetrahydronaphth-1-yl benzoate to give 1-vinyl-1,2,3,4-tetrahydronaphthalene.