Asymmetric Hydrosilylation of Ketones Catalyzed by Magnetically Recoverable and Reusable Copper Ferrite Nanoparticles
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- 作者：M. Lakshmi Kantam ; Jagjit Yadav ; Soumi Laha ; Pottabathula Srinivas ; Bojja Sreedhar ; F. Figueras
- 刊名：Journal of Organic Chemistry
- 出版年：2009
- 出版时间：June 19, 2009
- 年：2009
- 卷：74
- 期：12
- 页码：4608-4611
- 全文大小：200K
- 年卷期：v.74,no.12(June 19, 2009)
- ISSN：1520-6904
文摘
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.