Asymmetric hydrogenation of o-cresol and m-cresol catalyzed by silica-supported methylcellulose-L-alanine-Pd complex

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	Asymmetric hydrogenation of o-cresol and m-cresol catalyzed by silica-supported methylcellulose-L-alanine-Pd complex
	Huang, K; Hu, J; Huang, MY; Jiang, YY
刊名	POLYMERS FOR ADVANCED TECHNOLOGIES
	2001-11-01
卷号	12 期号:11-12 页码:711-715
关键词	Methylcellulose-l-alanine-pd Complex Chiral Catalyst Asymmetric Hydrogenation O-cresol M-cresol
ISSN号	1042-7147
英文摘要	Silica-supported methylcellulose-L-alanine-palladium complex (SiO2-MC-LA-Pd) has been prepared and found to be a high optically active catalyst for asymmetric hydrogenation of o-cresol and in-cresol to give (S)-2-methylcyclohexanone and (R)-3-methylcyclohexanone, respectively, at 25degreesC and under an atmospheric hydrogen pressure. The optical yields of (S)-2-methylcyclohexanone and (R)-3-methylcyclohexanone amounted to 91.5 and 68.5%, respectively, when optimum I'd content in SiO2-MC-LA-Pd complex, reaction temperature and solvent were selected. SiO2-MC-LA-Pd catalyst also has shown high stability. The optical yields for (S)-2-methylcyclohexanone and (R)-3-methylcyclohexanone were kept over 90 and 60%, respectively, when the catalyst was reused several times. Moreover, SiO2-MC-LA-Pd complex is an economical catalyst. The methylcellulose is an abundant natural biopolymer and the procedure for preparation of the complex is very simple. Copyright (C) 2001 John Wiley Sons, Ltd.
语种	英语
出版者	JOHN WILEY & SONS LTD
WOS记录号	WOS:000173124400016
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/77161]
专题	中国科学院化学研究所
通讯作者	Huang, K
作者单位	Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Huang, K,Hu, J,Huang, MY,et al. Asymmetric hydrogenation of o-cresol and m-cresol catalyzed by silica-supported methylcellulose-L-alanine-Pd complex[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2001,12(11-12):711-715.
APA	Huang, K,Hu, J,Huang, MY,&Jiang, YY.(2001).Asymmetric hydrogenation of o-cresol and m-cresol catalyzed by silica-supported methylcellulose-L-alanine-Pd complex.POLYMERS FOR ADVANCED TECHNOLOGIES,12(11-12),711-715.
MLA	Huang, K,et al."Asymmetric hydrogenation of o-cresol and m-cresol catalyzed by silica-supported methylcellulose-L-alanine-Pd complex".POLYMERS FOR ADVANCED TECHNOLOGIES 12.11-12(2001):711-715.