Synthesis of chiral functionalized polymers by alternating copolymerization of propene and CO using the Pd(OAc)2/(S)-P-PHOS catalyst

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	Synthesis of chiral functionalized polymers by alternating copolymerization of propene and CO using the Pd(OAc)2/(S)-P-PHOS catalyst
	Wang LL(王来来); Wang LL(王来来)
刊名	Chin. J. Catal.
	2011
卷号	32 页码:65-69
关键词	palladium acetate chiral diphosphous ligand propene carbon monoxide chiral polyketone reducing agent chiral polyalcohol
ISSN号	1872-2067
通讯作者	王来来
中文摘要	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.
学科主题	有机功能材料
收录类别	SCI
资助信息	the National Natural Science Foundation of China (20343005, 20473107, 20673130, 20773147)
语种	英语
公开日期	2012-11-29
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2255]
专题	兰州化学物理研究所_OSSO国家重点实验室
通讯作者	Wang LL(王来来); Wang LL(王来来)
推荐引用方式 GB/T 7714	Wang LL,Wang LL. 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,&王来来.(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.