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Heterogeneous asymmetric hydroformylation of olefins on chirally modified Rh/SiO2 catalysts
Han, Difei; Li, Xiaohong; Zhang, Huidong; Liu, Zhimin; Li, Jun; Li, Can; Li C(李灿); Li C(李灿)
关键词Heterogeneous Catalysis Enantioselective Hydroformylation Chiral Modification Coordination Phosphorus Ligands
刊名JOURNAL OF CATALYSIS
2006-10-25
DOI10.1016/j.jcat.2006.08.003
243期:2页:318-328
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 ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]ENANTIOSELECTIVE HYDROGENATION ; ALPHA-KETOESTERS ; VINYL-ACETATE ; RHODIUM ; COMPLEXES ; NANOPARTICLES ; ASSEMBLIES ; KETONES ; BINAP
英文摘要Heterogeneous chiral catalysts were prepared by modifying silica-supported rhodium (Rh/SiO2) with chiral phosphorus ligands. The chirally modified Rh/SiO2 catalysts exhibited high activity, regioselectivity, and enantioselectivity for the asymmetric hydroformylation of styrene and vinyl acetate. Up to 72% ee and 100% selectivity of branched aldehyde for the hydroformylation of vinyl acetate were obtained for (R)-BINAPRh/SiO2 catalysts. It is noteworthy that the modification of Rh/SiO2 with (S,S)-DIOP resulted in increased activity for the hydroformylation of vinyl acetate and gave a TOF of 128 h(-1), even higher than that of the unmodified Rh/SiO2 catalyst (90 h(-1)). It is found that chiral modifiers with bidentate phosphines and an optimized modifier/rhodium molar ratio close to 1.0 were prerequisites for chiral induction on the chirally modified catalysts. P-31 MAS NMR results and IR spectra of adsorbed CO indicated that the chiral modification via the coordination of phosphines to rhodium produces chirally active sites on the Rh/SiO2 catalysts. (c) 2006 Elsevier Inc. All rights reserved.
语种英语
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WOS记录号WOS:000241591900011
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被引频次:52[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/98243
专题中国科学院大连化学物理研究所
通讯作者Li C(李灿); Li C(李灿)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Han, Difei,Li, Xiaohong,Zhang, Huidong,et al. Heterogeneous asymmetric hydroformylation of olefins on chirally modified Rh/SiO2 catalysts[J]. JOURNAL OF CATALYSIS,2006,243(2):318-328.
APA Han, Difei.,Li, Xiaohong.,Zhang, Huidong.,Liu, Zhimin.,Li, Jun.,...&李灿.(2006).Heterogeneous asymmetric hydroformylation of olefins on chirally modified Rh/SiO2 catalysts.JOURNAL OF CATALYSIS,243(2),318-328.
MLA Han, Difei,et al."Heterogeneous asymmetric hydroformylation of olefins on chirally modified Rh/SiO2 catalysts".JOURNAL OF CATALYSIS 243.2(2006):318-328.
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