Publication
Epoxidation of (E,E)-Cinnamylideneacetophenones Using Salen Mn(III) as Catalyst
| dc.contributor.author | Santos, Clementina M.M. | |
| dc.contributor.author | Silva, Artur | |
| dc.contributor.author | Cavaleiro, José | |
| dc.contributor.author | Patonay, Támas | |
| dc.contributor.author | Lévai, Albert | |
| dc.date.accessioned | 2011-04-08T10:43:07Z | |
| dc.date.available | 2011-04-08T10:43:07Z | |
| dc.date.issued | 2006 | |
| dc.description.abstract | 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. | por |
| dc.identifier.citation | 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 | por |
| dc.identifier.uri | http://hdl.handle.net/10198/3978 | |
| dc.language.iso | eng | por |
| dc.publisher | Universidade de Aveiro | por |
| dc.subject | Cinnamylideneacetophenones | por |
| dc.subject | Salen catalyst | por |
| dc.subject | Epoxidation | por |
| dc.subject | Iodosylbenzene | por |
| dc.subject | Hydrogen peroxide | por |
| dc.subject | NMR spectroscopy | por |
| dc.title | Epoxidation of (E,E)-Cinnamylideneacetophenones Using Salen Mn(III) as Catalyst | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Universidade de Aveiro | por |
| oaire.citation.title | 4th Transmediterranean Colloquim on Heterocyclic Chemistry | por |
| person.familyName | Santos | |
| person.givenName | Clementina M.M. | |
| person.identifier.ciencia-id | 9018-DB9C-C590 | |
| person.identifier.orcid | 0000-0003-4380-7990 | |
| person.identifier.scopus-author-id | 7201458663 | |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | 64f662b6-775d-4ea0-bfd7-f527af0ac1a0 | |
| relation.isAuthorOfPublication.latestForDiscovery | 64f662b6-775d-4ea0-bfd7-f527af0ac1a0 |