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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/3425

Título: NMR in the epoxidation of (E,E)-Cinnamylideneacetophenones
Autor: Santos, Clementina M.M.
Silva, Artur
Cavaleiro, José
Issue Date: 2006
Citação: Santos, Clementina M.M.; Silva, Artur; Cavaleiro, José (2006) - NMR in the epoxidation of (E,E)-Cinnamylideneacetophenones. In IV Congresso Ibérico de Espectroscopia. Ciudad Real
Resumo: The epoxidation of cinnamylideneacetophenones have been already performed with hydrogen peroxide as an oxidant in Julia's method [1] and with dimethyldioxirane [2], however no studies were performed using salen Mn(III) complexes as catalysts.
The epoxidation of cinnatnylideneacetophenones have been already performed with hydrogen peroxide as oxidant in Julia's method [1] and with dimethyldioxirane [2], however no studies were performed using salen Mn(lll) complexes as catalysts. On these basis, we developed a study on the epoxidation of cinnamylideneacetophenones 1, catalyzed by coinmercially available Jacobsen's catalyst [salen Mn(IIl)] and using iodosy I benzene and hydrogen peroxide as oxidants. The structure of the epoxidation products 2-5, their stereochemistry and the regiochemistry of the monoepoxides 2 fotmation were established by ID and 2D NMR spectroscopy. These studies will be presented and discussed.
URI: http://hdl.handle.net/10198/3425
Appears in Collections:PTV - Resumos em Proceedings Não Indexados ao ISI/Scopus

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