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Enantioselective Hydrogenation of alpha,beta-Unsaturated Carboxylic Acids: Effects of Palladium Particle Size and Support Acidic Property
Chen Chunhui; Zhan Ensheng; Yong, Li; Shen Wenjie
KeywordEnantioselective Hydrogenation Alpha Pd Particle Size Beta-unsaturated Carboxylic Acid Oxide Support Acidity
Source PublicationACTA CHIMICA SINICA
2013-11-14
DOI10.6023/A13070728
Volume71Issue:11Pages:1505-1510
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordCATALYZED ASYMMETRIC HYDROGENATION ; SUBSTITUTED (E)-2,3-DIPHENYLPROPENOIC ACIDS ; STRUCTURE SENSITIVITY ; (E)-2-METHYL-2-BUTENOIC ACID ; 2-METHYL-2-PENTENOIC ACID ; PD CATALYSTS ; NANOPARTICLES ; PD/AL2O3 ; CINCHONA ; SHAPE
AbstractEffects of Pd particle size and support acidity on enantioselective hydrogenation of alpha,beta-unsaturated carboxylic acids were systematically studied using Pd nanoparticles with different size immobilized on various oxides. Small Pd particles showed higher activity in the hydrogenation of (E)-2-methyl-2-pentenoic acid due to the larger fraction of edge sites which were more active in olefin hydrogenation; but they did not change the reaction mechanism and/or the adsorption mode of reaction intermediates. Similar correlations in the hydrogenation of (E)-2-methyl-2-butenoic acid and 2-acetamidoacrylic acid further confirmed that the size of Pd particles only mediated the activity but did not alter the enantioselectivity. On the other hand, the activity and the enantioselectivity were strongly dependent on the acidity of the support. The TOF and the ee value followed the order TiO2>gamma-Al2O3>SiO2>CeO2, suggesting that the acidic support favored the adsorption of the reaction intermediates.
Language英语
WOS IDWOS:000328574000007
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/137537
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chen Chunhui,Zhan Ensheng,Yong, Li,et al. Enantioselective Hydrogenation of alpha,beta-Unsaturated Carboxylic Acids: Effects of Palladium Particle Size and Support Acidic Property[J]. ACTA CHIMICA SINICA,2013,71(11):1505-1510.
APA Chen Chunhui,Zhan Ensheng,Yong, Li,&Shen Wenjie.(2013).Enantioselective Hydrogenation of alpha,beta-Unsaturated Carboxylic Acids: Effects of Palladium Particle Size and Support Acidic Property.ACTA CHIMICA SINICA,71(11),1505-1510.
MLA Chen Chunhui,et al."Enantioselective Hydrogenation of alpha,beta-Unsaturated Carboxylic Acids: Effects of Palladium Particle Size and Support Acidic Property".ACTA CHIMICA SINICA 71.11(2013):1505-1510.
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