| Synthesis of chiral functionalized polymers by alternating copolymerization of propene and CO using the Pd(OAc)2/(S)-P-PHOS catalyst | |
| Department | 羰基合成与选择氧化国家重点实验室 |
Wang LL(王来来) ; Jia XJ(贾小静); Wan B(万博)
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| 2011 | |
| Source Publication | Chin. J. Catal.
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| ISSN | 1872-2067 |
| Volume | 32Pages:65-69 |
| Abstract | Pd(OAc)2 (palladium acetate)/(S)-P-PHOS ((S)-2,2,6,6-tetramethoxy-4,4-bis(diphenyl)phosphino)-3,3-bipyridine) catalysis systems were applied to the alternating copolymerization of propene and CO in organic solvents to synthesize chiral polyketones. The diastereoselective reduction of a chiral polyketone using excess LiAlH4 (lithium aluminum hydride) and NaBH4 (sodium borohydride) as reducing agents gave a new class of optically active polyalcohol and the product yield was more than 90%. In the presence of various amounts of NaBH4 (NaBH4/carbonyl molar ratio of 0.5, 1, and 2), quantitative measurements of the intensity of the carbonyl absorbance at 200–400 nm in the UV (ultraviolet) spectrum showed a reduction of 29%, 71%, and 81%, respectively, for the carbonyl groups. The use of excess BH3·THF (borane tetrahydrofuran complex) as a reducing agent resulted in a partial reduction of the carbonyl groups of the chiral polyketone. The molecular weight of the product was lower than that of the chiral polyketone and the molar optical rotations of the product varied with the reductive conditions. |
| Keyword | Palladium Acetate Chiral Diphosphous Ligand Propene Carbon Monoxide Chiral Polyketone Reducing Agent Chiral Polyalcohol |
| Subject Area | 有机功能材料 |
| Funding Organization | the National Natural Science Foundation of China (20343005, 20473107, 20673130, 20773147) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 有机功能材料研究组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2255 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Wang LL(王来来) |
| Recommended Citation GB/T 7714 | Wang LL,Jia XJ,Wan B. Synthesis of chiral functionalized polymers by alternating copolymerization of propene and CO using the Pd(OAc)2/(S)-P-PHOS catalyst[J]. Chin. J. Catal.,2011,32:65-69. |
| APA | 王来来,贾小静,&万博.(2011).Synthesis of chiral functionalized polymers by alternating copolymerization of propene and CO using the Pd(OAc)2/(S)-P-PHOS catalyst.Chin. J. Catal.,32,65-69. |
| MLA | 王来来,et al."Synthesis of chiral functionalized polymers by alternating copolymerization of propene and CO using the Pd(OAc)2/(S)-P-PHOS catalyst".Chin. J. Catal. 32(2011):65-69. |
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