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Enantioselective Alternating Copolymerization of Propylene with Carbon Monoxide Using Cationic Palladium-Chiral Diphosphine Catalyst |
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| Authors: | Jian Chao YUAN Yu Hua ZHANG Shi Jie LU State Key Laboratory for Oxo Synthesis Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou |
| Affiliation: | Jian Chao YUAN,Yu Hua ZHANG,Shi Jie LU* State Key Laboratory for Oxo Synthesis and Selective Oxidation,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000 |
| Abstract: | Enantioselective alternating copolymerization of carbon monoxide with propylene was carried out using palladium catalyst modified by 1,4-3,6-dianhydro-2,5-dideoxy-2,5-bis (diphenylphosphino)-L-iditol (DDPPI). The chiral diphosphine was proved to be effective at enantioselective copolymerization. Optical rotation, elemental analysis, 1H, 13C-NMR and IR spectra showed that the copolymer was optically active, isotactic, alternating poly(1,4-ketone) structure. |
| Keywords: | Palladium catalyst chiral ligand enantioselective alternating copolymerization isotactic copolymer optical activity. |
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