2007
DOI: 10.1002/chin.200740054
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Philip C. Bulman Page, Benjamin R. Buckley, David Barros et al.

Abstract: Three iminium salts have been tested as catalysts for the asymmetric epoxidation of simple alkenes under non-aqueous conditions in various solvents, at varying temperatures, employing tetraphenylphosphonium monoperoxybisulfate (TPPP) as the stoicheiometric oxidant. Enantiomeric excesses of up to 89% have been observed.