Tools
ToolsGullick, John, Taylor, Sophia, Kerton, Owain, McMorn, Paul, King, Frank, Hancock, Frederick E., Bethell, Donald, Bulman Page, Philip C. and Hutchings, Graham J. (2001) Heterogeneous catalytic aziridination of styrene using transition-metal-exchanged zeolite Y. Catalysis Letters, 75 (3-4). pp. 151-154. ISSN 1011-372X
Full text not available from this repository.Abstract
Transition-metal-exchanged zeolite Y (Cr, Mn, Fe, Co, Ni, Cu, Zn) are compared as catalysts for the aziridination of styrene using (N-(p-tolylsulfonyl)imino)phenyliodinane (PhI=NTs) as the nitrene precursor. The Cu-exchanged zeolite shows high levels of aziridine formation, but significant yields of aziridine are also obtained with the Cr-, Mn-, Fe- and Co-exchanged zeolite Y. In contrast, these cations produce much lower yields of aziridine in the corresponding homogeneously catalysed reactions. Addition of a chiral bis-oxazoline ligand leads to a significant decrease in the yield of aziridine for all the ion-exchanged zeolites, with the exception of the Cu-exchanged zeolite Y. Further experiments with (N-(p-nitrophenylsulfonyl)imino)phenyliodinane (PhI=NNs) as nitrene donor indicate that, in addition to Cu-exchanged zeolite Y, significant yields of the aziridine can be formed for Zn-, Mn, Fe- and Co-exchanged zeolite Y. The major by-product was benzaldehyde, probably formed by oxidation of styrene. These data confirm that Cu-exchanged zeolite Y is the best aziridination catalyst but it is shown that other metal-exchanged zeolites are also catalytically active.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | aziridination,olefins,bis(oxazoline)-modified,alkenes,alkenes,iodosylbenzene,zeolite y,manganese,epoxidation,iron,asymmetric catalysis |
| Faculty \ School: | Faculty of Science > School of Chemistry (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017) |
| Depositing User: | Rachel Smith |
| Date Deposited: | 21 Jun 2011 11:30 |
| Last Modified: | 24 Sep 2024 10:23 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/32824 |
| DOI: | 10.1023/A:1016739904897 |
Actions (login required)
 |
View Item |