Y型分子筛固载(1S,2S)-DPEN-Ru(TPP)2催化苯乙酮不对称加氢 |
Asymmetric Hydrogenation of Acetophenone Catalyzed by Zeolite Y Encapsulated (1S,2S)-DPEN-Ru(TPP)2 Complex |
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摘要: 采用自由配体法将(1S,2S)-DPEN(1,2-diphenyl-1,2-ethylene-diamine)-Ru(TPP)2(TPP=三苯基膦,triphenylphosphine)配合物封装于NaY沸石分子筛超笼中,制备了(1S,2S)-DPEN-Ru(TPP)2/Y主客体材料((1S,2S)-DPEN =1,2-二苯基-1,2-乙二胺)。采用等离子体发射光谱ICP、粉末X射线衍射(XRD)、紫外光谱(UV-Vis)、氮吸附等物理化学手段对所制备材料进行了表征。结果表明,(1S,2S)-DPEN-Ru(TPP)2配合物封装于Y型分子筛超笼中保持了原有的物理化学性能;作为苯乙酮不对称加氢催化剂,在优化条件下,苯乙酮的转化率可达100%,(R)-苯乙醇的对映体过量值(ee值)可达61.0%。该催化剂具有良好的稳定性和重复使用性。 |
关键词: (1S,2S)-DPEN-Ru(TPP)2/Y NaY分子筛 不对称加氢 苯乙酮 |
基金项目: |
Abstract: (1S,2S)-DPEN(1,2-diphenyl-1,2-ethylene-diamine)-Ru(TPP)2(TPP=triphenyl-phosphine) was encapsul-ated in the supercage of zeolite Y by the flexible ligand method, and characterized by ICP, XRD, UV-Vis, Low temperature N2 adsorption and desorption. The results showed that the(1S, 2S)-DPEN-Ru(TPP)2((1S, 2S)-DPEN=meso -1,2-Diphenylethylenediamine) was formed in the supercage of zeolite Y. As an asymmetric hydrogenation catalyst, the conversion of acetophenone and the enantiomeric excess value(ee value) of (R)-phenylethanol achieved 100% and 61.0%, respectively. The catalyst is with high stability and repeatability in the reaction without loss of activity and ee value. |
Keywords: (1S,2S)-DPEN-Ru(TPP)2/Y zeolite Y asymmetric hydrogenation acetophenone |
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刘建红,夏 峰,范彬彬,李瑞丰,陈 华.Y型分子筛固载(1S,2S)-DPEN-Ru(TPP)2催化苯乙酮不对称加氢[J].无机化学学报,2009,25(6):980-985. |
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