UCD

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Authors

BOUSQUET, C; GILHEANY, DG; ;

Year

1995

Month

October

Journal

Tetrahedron Letters

Title

Chromium Catalysed Asymmetric Alkene Epoxidation. Greater Selectivity for an E-alkene versus its Z-isomer.

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Published

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Volume

Issue

Start Page

7739

End Page

7742

Abstract

E-beta-methylstyrene can be asymmetrically epoxidised stoichiometrically with up to 83% ee and catalytically with up to 77% ee by chiral chromium complexes in the presence of phosphine oxides, DMSO or DMF. In all cases the analogous reaction with Z-beta-methylstyrene gives lower ee..

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