Enantioselective alternating copolymerizaion from carbon monoxide and styrene was carried out using cationic palladium catalyst modified by 1, 4-3, 6-dianhydro-2, 5-O-bis(benzo[1,3,2]dioxaphospholyl-2)-D-mannitol.Th...
New chiral ligands of P^P(S) have been synthesized and characterized by NMR. The asymmetric indution up to 38.1% have been obained for the catalytic hydroesterification of styrene.
Two new chiral phosphine ligands,1,4∶3,6-dianhydro-2,5-O-dideoxy-2,5-bis(dipheny-phosphinoxy)-L-iditol and 1,4∶3,6-dianhydro-2,5-O-dideoxy-2,5-bis(dipheny-phosphinsulphur)-L-iditol were prepared from D-mannitol.Pall...