Magnetically Recoverable Nanoparticles: Highly Efficient Catalysts for Asymmetric Transfer Hydrogenation of Aromatic Ketones in Aqueous Medium
作者:Guohua Liu、Hongyuan Gu、Yunqiang Sun、Jie Long、Yulong Xu、Hexing Li
DOI:10.1002/adsc.201100017
日期:2011.5
Two magnetic chiral iridium and rhodium catalysts were prepared via directly postgrafting 1,2‐diphenylethylenediamine‐derived organic silica or 1,2‐cyclohexanediamine‐derived organic silica onto the silica‐coated iron oxide nanoparticles followed by complexation with iridium(III) or rhodium(III) complexes. During the asymmetrictransferhydrogenation of aromatic ketones in aqueous medium, the magnetic