Lévai, AlbertSilva, ArturSantos, Clementina M.M.Cavaleiro, JoséJeko, József2011-04-042011-04-042009Lévai, Albert; Silva, Artur; Santos, Clementina; Cavaleiro, José; Jeko, József (2009). Dimethyldioxirane oxidation of exocyclic (E,E)-cinnamylideneketones. Australian Journal of Chemistry - an International Journal for Chemical Science. ISSN 0004-9425, 62:1, p. 82-890004-9425http://hdl.handle.net/10198/3921Exocyclic (E,E)-cinnamylideneketones were oxidized by an excess of isolated dimethyldioxirane (DMDO, in acetone solution) at room temperature, providing diastereomeric mixtures of the α,β:γ,δ-diepoxides. In the case of derivatives bearing an ortho-nitrocinnamylidene moiety, α,β-monoepoxides were also isolated as minor products. The structures of all new compounds and the stereochemistry of the monoepoxides and diepoxide diastereomers were established by NMR studies.engCinnamylideneketonesDimethyldioxiraneEpoxidesNMR spectroscopyjournal article10.1071/CH08216