Journal
RSC ADVANCES
Volume 4, Issue 105, Pages 60702-60710Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra09973g
Keywords
-
Categories
Funding
- University of Birjand
Ask authors/readers for more resources
In this study, a new magnetically recoverable heterogeneous Mn(III) nanocatalyst (MHMC) was developed by covalent grafting of a homogeneous chiral Mn(III) salen complex (HMC) onto the surface of a Fe3O4/SiO2 core-shell. The structural and chemical nature of MHMC was characterized by different techniques. The catalytic activity of the MHMC and comparison with its homogeneous analogue were studied for the enantioselective epoxidation of various alkenes to epoxide compounds using tert-butyl hydroperoxide (TBHP) as an oxidant. The MHMC showed higher enantioselectivity and comparable catalytic reactivity to its homogeneous analogue with benefits such as facile recovery and recycling of the heterogeneous catalyst. The results showed that a higher enantioselectivity and yield were observed in the presence of N-methylmorpholine N-oxide (NMNO). The catalytic activity of this complex was also tested in the oxidation of sulfides using aqueous 30% H2O2 in excellent yields. The catalyst was reused for several runs without significant loss in activity and selectivity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available