(R,R)-DPEN-modified Ru/gamma-Al2O3 - An efficient heterogeneous catalyst for enantioselective hydrogenation of acetophenone
文献类型：期刊论文
| 作者 | Cheng HY ; Hao JM ; Wang HJ ; Xi CY ; Meng XC ; Cai SX ; Zhao FY |
| 刊名 | journal of molecular catalysis a-chemical
 |
| 出版日期 | 2007 |
| 卷号 | 278期号:1-2页码:6-11 |
| 关键词 | MODIFIED RANEY-NICKEL CINCHONA-MODIFIED PLATINUM GAS-PHASE HYDROGENATION ASYMMETRIC HYDROGENATION AROMATIC KETONES COMPLEXES HYDROXYMETHYLPYRONE DIFFERENTIATION MECHANISM SUPPORTS |
| ISSN号 | 1381-1169 |
| 通讯作者 | zhao fy |
| 中文摘要 | an efficient enantioselective catalyst of 5 wt.% ru/-gamma-al2o3 modified with r,r-1,2-diphenylethylene-diamine ((r,r)-dpen) for the hydrogenation of a non-activated aromatic ketone of acetophenone has been investigated, a relatively high enantiomeric excess (ee) of 60.5% was obtained at both the conversion and selectivity larger than 99%, it was about three times higher than the ee values reported up to now for acetophenone hydrogenation with the supported transition metal catalysts modified by chiral reagents. the influences of some reaction parameters such as phosphine ligand, substrate/catalyst/modifier molar ratios, base, solvent, pressure and reaction temperature have been discussed. the chiral modifier of (r,r)-dpen was very important in controlling the enantioselectivity through adsorption competing with other substrates on the surface of active metal species. the phosphine ligand and base were also important and indispensable in the present reaction. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000251510300002 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14113]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cheng HY,Hao JM,Wang HJ,et al. (R,R)-DPEN-modified Ru/gamma-Al2O3 - An efficient heterogeneous catalyst for enantioselective hydrogenation of acetophenone[J]. journal of molecular catalysis a-chemical,2007,278(1-2):6-11. |
| APA | Cheng HY.,Hao JM.,Wang HJ.,Xi CY.,Meng XC.,...&Zhao FY.(2007).(R,R)-DPEN-modified Ru/gamma-Al2O3 - An efficient heterogeneous catalyst for enantioselective hydrogenation of acetophenone.journal of molecular catalysis a-chemical,278(1-2),6-11. |
| MLA | Cheng HY,et al."(R,R)-DPEN-modified Ru/gamma-Al2O3 - An efficient heterogeneous catalyst for enantioselective hydrogenation of acetophenone".journal of molecular catalysis a-chemical 278.1-2(2007):6-11. |
入库方式： OAI收割
来源：长春应用化学研究所
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