磁性可回收且可重复使用的铜铁氧体纳米颗粒催化的酮的不对称硅氢化反应。
Asymmetric hydrosilylation of ketones catalyzed by magnetically recoverable and reusable copper ferrite nanoparticles.
作者信息
Kantam M Lakshmi, Yadav Jagjit, Laha Soumi, Srinivas Pottabathula, Sreedhar Bojja, Figueras F
机构信息
Indian Institute of Chemical Technology, Hyderabad-500007, India.
出版信息
J Org Chem. 2009 Jun 19;74(12):4608-11. doi: 10.1021/jo9002823.
PMID:19518151
Abstract
Herein we present magnetically recoverable and reusable copper ferrite nanoparticles for asymmetric hydrosilylation of several ketones. Up to 99% enantiometric excess was obtained at room temperature using polymethylhydrosiloxane as the stoichiometric reducing agent. The copper ferrite nanoparticles were magnetically separated, and the efficiency of the catalyst remains almost unaltered up to three cycles.
摘要
在此，我们展示了用于几种酮不对称硅氢化反应的可磁回收和重复使用的铜铁氧体纳米颗粒。使用聚甲基氢硅氧烷作为化学计量还原剂，在室温下可获得高达99%的对映体过量。铜铁氧体纳米颗粒通过磁分离回收，催化剂效率在三个循环内几乎保持不变。
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