Gullick, J., Taylor, S., McMorn, P., Bethell, D., Bulman Page, P. C. B., Hancock, F. E., King, F. and Hutchings, G. J. (2002) Heterogeneous aziridination of styrene using N-(p-nitrophenylsulfonyl)imino phenyliodinane as nitrene donor: influence of the reaction parameters on yield and enantioselectivity. Journal of Molecular Catalysis A: Chemical, 182 (1). pp. 571-575. ISSN 1381-1169

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Abstract

The copper-catalysed aziridination of styrene with copper-exchanged zeolite Y (CuHY) and copper(II) triflate (Cu(OTf)(2)) as catalysts is described and discussed. In particular, the effects of reaction conditions on the yield and enantiomeric excess of the aziridine product are described using [N-(p-nitrophenyisulfonyl)imino]phenyliodinane (PhI=NNs) as nitrene donor. By careful control of the styrene:nitrene donor molar ratio and the solvent, an ee of 95% can be obtained for the heterogeneously catalysed bis(oxazoline)-modified zeolite CuHY The ee achieved with the zeolite immobilised catalyst is significantly higher than that achieved for the non-immobilised homogeneous catalyst under comparable reaction conditions. (C) 2002 Elsevier Science B.V. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	olefins,anisole,styrene aziridination,donors,solid solvents,zeolite catalysts,fine chemicals synthesis,nitrene,bis(oxazoline)-modified cuhy zeolite
Faculty \ School:	Faculty of Science > School of Chemistry
Depositing User:	Rachel Smith
Date Deposited:	21 Jun 2011 10:47
Last Modified:	28 Apr 2022 18:41
URI:	https://ueaeprints.uea.ac.uk/id/eprint/32833
DOI:

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