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题名: Asymmetric hydroformylation of olefins catalyzed by rhodium nanoparticles chirally stabilized with (R)-BINAP ligand
作者: Han, Difei1;  Li, Xiaohong2;  Zhang, Huidong1;  Liu, Zhimin1;  Hu, Gengshen1;  Li, Can1
通讯作者: 李灿
关键词: rhodium nanoparticles ;  enantioselective hydroformylation ;  chiral stabilization ;  coordination ;  phosphorus ligands
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2008-03-18
DOI: 10.1016/j.molcata.2007.12.008
卷: 283, 期:1-2, 页:15-22
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Rhodium nanoparticles have been conveniently synthesized by one-pot chemical reduction of aqueous rhodium chloride (RhCl3.3H(2)O) dispersed in toluene solution in the presence of amphiphilic tetraoctylammonium bromide (TOAB) and chiral (R)-BINAP at ambient conditions. The resulting highly dispersed rhodium nanoparticles show small and narrowly distributed core sizes (1.5-2.0 nm). The chirally stabilized rhodium nanoparticles were also immobilized on silica by impregnation to give the corresponding supported catalysts. P-31 MAS NMR results and IR spectra of adsorbed CO confirm that chiral (R)-BINAP ligands stabilize the nanoparticles by coordinative interaction between phosphine and rhodium, and produce chirally catalytic active sites on the rhodium nanocatalysts. Chirally stabilized catalysts exhibit high regioselectivity and chiral induction ability for the asymmetric hydroformylation of olefins. The supported rhodium nanocatalysts show the increased activities compared to the unsupported catalysts (e.g. from 12 to 22 h(-1) for the hydroformylation of styrene). One hundred percentage regioselectivity of branched aldehyde and up to 59% ee were obtained for the hydroformylation of vinyl acetate. (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: PALLADIUM NANOPARTICLES ;  GOLD NANOPARTICLES ;  CHEMISTRY ;  PHOSPHINE ;  HYDROGENATION ;  COLLOIDS ;  SIZE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000254748100003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101317
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China

Recommended Citation:
Han, Difei,Li, Xiaohong,Zhang, Huidong,et al. Asymmetric hydroformylation of olefins catalyzed by rhodium nanoparticles chirally stabilized with (R)-BINAP ligand[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2008,283(1-2):15-22.
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