L-Prolinamide functionalized mesoporous silicas: Synthesis and catalytic performance in direct aldol reaction
文献类型：期刊论文
| 作者 | Gao, Jinsuo; Liu, Jian; Jiang, Dongmei; Xiao, Bing; Yang, Qihua |
| 刊名 | journal of molecular catalysis a-chemical
 |
| 出版日期 | 2009-11-02 |
| 卷号 | 313期号:1-2页码:79-87 |
| 关键词 | Mesoporous silicas Aldol reaction Chiral Prolinamide |
| 英文摘要 | mesoporous silicas functionalized with the l-prolinamide group in the mesopore were synthesized by co-condensation of silicon precursors with l-prolinamide modified organosilane (pca) in hoac-naoac buffer solution (ph = 4.4) using block copolymer p123 as a template. the highly ordered 2d hexagonal mesostructure was obtained through one-pot co-condensation of tetraethoxysilane (teos), na(2)sio(3) and pca as silicon source. the disordered foam-like mesostructure was also obtained when teos and pca were used as silicon sources. in asymmetric aldol reaction of cyclohexanone with 4-niti-obenzaldehyde, the materials with highly ordered mesostructure exhibit higher enantioslectivity (91% ee) than that with disordered foam-like mesostructure (75% ee), suggesting that the ordered pore structure imparts improved enantioselectivity. the l-prolinamide functionalized materials were also synthesized by grafting pca onto mesoporous silicas. which showed catalytic efficiencies similar to the materials synthesized by the co-condensation method. (c) 2009 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | asymmetric direct aldol ; organosilicas ; organocatalyst ; trans-(1r,2r)-diaminocyclohexane ; ketones |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000270893600012 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141463]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Jinsuo,Liu, Jian,Jiang, Dongmei,et al. L-Prolinamide functionalized mesoporous silicas: Synthesis and catalytic performance in direct aldol reaction[J]. journal of molecular catalysis a-chemical,2009,313(1-2):79-87. |
| APA | Gao, Jinsuo,Liu, Jian,Jiang, Dongmei,Xiao, Bing,&Yang, Qihua.(2009).L-Prolinamide functionalized mesoporous silicas: Synthesis and catalytic performance in direct aldol reaction.journal of molecular catalysis a-chemical,313(1-2),79-87. |
| MLA | Gao, Jinsuo,et al."L-Prolinamide functionalized mesoporous silicas: Synthesis and catalytic performance in direct aldol reaction".journal of molecular catalysis a-chemical 313.1-2(2009):79-87. |
入库方式： OAI收割
来源：大连化学物理研究所
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