Issue 5, 2014

Mesoporous silica KIT-6 supported superparamagnetic CuFe2O4 nanoparticles for catalytic asymmetric hydrosilylation of ketones in air

Abstract

A diverse range of prochiral ketones were reduced in air with high yields and good-to-excellent enantioselectivities (up to 97% ee) in the presence of a heterogeneous catalyst system, which was in situ formed from catalytic amounts of superparamagnetic CuFe2O4 nanoparticles supported on mesoporous silica KIT-6 and non-racemic dipyridylphosphine ligand, the stoichiometric hydride donor polymethylhydrosiloxane (PMHS) as well as certain amounts of additives. The magnetically separable catalysts could be efficiently reused 4 times without apparent loss of both the activity and enantioselectivity.

Graphical abstract: Mesoporous silica KIT-6 supported superparamagnetic CuFe2O4 nanoparticles for catalytic asymmetric hydrosilylation of ketones in air

Supplementary files

Article information

Article type
Paper
Submitted
29 Dec 2013
Accepted
11 Feb 2014
First published
13 Feb 2014

Green Chem., 2014,16, 2680-2688

Author version available

Mesoporous silica KIT-6 supported superparamagnetic CuFe2O4 nanoparticles for catalytic asymmetric hydrosilylation of ketones in air

M. Li, B. Li, H. Xia, D. Ye, J. Wu and Y. Shi, Green Chem., 2014, 16, 2680 DOI: 10.1039/C3GC42638F

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