Tuning the selectivity of ruthenium nanoscale catalysts with functionalised ionic liquids: Hydrogenation of nitriles

被引:61
作者
Prechtl, Martin H. G. [1 ]
Scholten, Jackson D. [1 ]
Dupont, Jairton [1 ]
机构
[1] Univ Fed Rio Grande do Sul, Lab Mol Chem, Inst Chem, BR-91501970 Porto Alegre, RS, Brazil
关键词
Ru catalysts; Ru nanoparticles; Ionic liquids; Hydrogenation; Nitrile; Arenes; ARENE HYDROGENATION; PRIMARY AMINES; HECK REACTION; RANEY-CO; NANOPARTICLES; REDUCTION;
D O I
10.1016/j.molcata.2009.08.004
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ruthenium nanoparticles prepared in nitrile-functionalised ionic liquids (ILs) display unusual selectivities toward the hydrogenation of nitrile containing aromatic compounds. In particular, a selective catalytic hydrogenative coupling of nitriles was observed. In this transformation, nitrile groups are exclusively hydrogenated in the presence of arenes, which are typically hydrogenated by ruthenium nanoparticles in non-functionalised ILs. The catalyst material was characterised by means of TEM and EDS analysis. Furthermore, molecular species formed during the catalytic process were characterised by MS-analysis of the gaseous phase and the ionic liquid phase by ESI/MS Q-TOR. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:74 / 78
页数:5
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