Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior Agrária >
Produção e Tecnologia Vegetal >
PTV - Resumos em Proceedings Não Indexados ao ISI/Scopus >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/3978

Título: Epoxidation of (E,E)-Cinnamylideneacetophenones Using Salen Mn(III) as Catalyst
Autor: Santos, Clementina M.M.
Silva, Artur
Cavaleiro, José
Patonay, Támas
Lévai, Albert
Palavras-chave: Cinnamylideneacetophenones
Salen catalyst
Epoxidation
Iodosylbenzene
Hydrogen peroxide
NMR spectroscopy
Issue Date: 2006
Editora: Universidade de Aveiro
Citação: Santos, Clementina; Silva, Artur; Cavaleiro, José; Patonay, Támas; Lévai, Albert (2006) - Epoxidation of (E,E)-Cinnamylideneacetophenones Using Salen Mn(III) as Catalyst. In 4th Transmediterranean Colloquim on Heterocyclic Chemistry. Aveiro
Resumo: Salen Mn(III) complexes are efficient and practical catalysts for the epoxidation of various α,β-unsaturated carbonyl compounds. Among common oxidants used are iodosylbenzene, sodium hipochlorite, oxone, peracids and dimethyldioxirane [1]. Although the epoxidation of cinnamylideneacetophenones have already been reported in literature (by Julia’s epoxidation using hydrogen peroxide as oxidant [2] and by oxidation with dimethyldioxirane [3]), no studies were performed using these kind of salen Mn(III) complexes as catalysts. On these basis, we developed a study on the epoxidation of cinnamylideneacetophenones 1, catalyzed by commercially available Jacobsen’s catalyst [salen Mn(III)] and using iodosylbenzene and hydrogen peroxide as oxidants. Several experimental conditions have been used and the γ,δ-monoepoxides 2 and, in same cases, the diasteriomeric mixture of α,β:γ,δ-diepoxides 3 have been obtained. In this communication, we report the synthetic details and structural characterisation of the mono 2 and diepoxides 3 obtained.
URI: http://hdl.handle.net/10198/3978
Appears in Collections:PTV - Resumos em Proceedings Não Indexados ao ISI/Scopus

Files in This Item:

File Description SizeFormat
2006 4TRAMECHC.pdf950,51 kBAdobe PDFView/Open

Please give feedback about this item
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 


© Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia