Lookup NU author(s): Dr Julian Knight
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2-Aryl-5,5-bisoxazolin-2-yl[1,3]dioxanes 5, which can be easily prepared in three steps from diethyl bishydroxymethylmalonate, amino alcohol and an aromatic aldehyde, have been used for the copper catalysed asymmetric cyclopropanation of styrene with ethyl diazoacetate in up to 99% ee for the trans-cyclopropane. Grafting onto a bromo-Wang resin produced an immobilised ligand 9 which gave the trans-cyclopropane in 65% ee. © 2005 Elsevier Ltd. All rights reserved.
Author(s): Knight JG, Belcher PE
Publication type: Article
Publication status: Published
Journal: Tetrahedron Asymmetry
Print publication date: 18/04/2005
ISSN (print): 0957-4166
ISSN (electronic): 1362-511X
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