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https://hdl.handle.net/1822/3110
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Esteves, Ana Paula | - |
dc.contributor.author | Goken, Danielle M. | - |
dc.contributor.author | Klein, Lee J. | - |
dc.contributor.author | Medeiros, Maria José | - |
dc.contributor.author | Peters, Dennis G. | - |
dc.contributor.author | Lemos, Maria A. | - |
dc.date.accessioned | 2005-09-30T12:27:31Z | - |
dc.date.available | 2005-09-30T12:27:31Z | - |
dc.date.issued | 2003 | - |
dc.identifier.citation | "Journal of Electroanalytical Chemistry". ISSN 0022-0728. 560 (2003) 161-168. | eng |
dc.identifier.issn | 0022-0728 | eng |
dc.identifier.uri | https://hdl.handle.net/1822/3110 | - |
dc.description.abstract | Cyclic voltammograms for the reduction of ethyl 2-bromo-3-(3′,4′-dimethoxyphenyl)-3-(propargyloxy)propanoate (1) at glassy carbon electrodes in dimethylformamide containing tetraalkylammonium salts exhibit three prominent waves corresponding to cleavage of the carbon–bromine bond and to subsequent reduction of ethyl trans-3-(3′,4′-dimethoxyphenyl)-prop-2-enoate (4). Controlled–potential electrolyses of 1 at potentials corresponding to reduction of the carbon–bromine bond afford 4 as the major product with an average yield of 56%. In the presence of a proton donor (1,1,1,3,3,3-hexafluoro-2-propanol), the quantity of 4 decreases slightly, and 2-(3′,4′-dimethoxyphenyl)-3-(ethoxycarbonyl)-4-methyl-2,5-dihydrofuran (3) is obtained in moderate amount (~26%). We propose a mechanistic scheme whereby the major products are formed via a combination of one- and two-electron processes. | eng |
dc.description.sponsorship | Fundação Calouste Gulbenkian. | por |
dc.language.iso | eng | eng |
dc.publisher | Elsevier Science SA | por |
dc.rights | restrictedAccess | eng |
dc.subject | Bromo propargyloxy ester | eng |
dc.subject | Electrochemical reduction | eng |
dc.subject | Glassy carbon cathodes | eng |
dc.subject | Redox catalysis | eng |
dc.subject | Digital simulation | eng |
dc.title | Direct electrochemical reduction of a bromo propargyloxy ester at vitreous carbon cathodes in dimethylformamide | eng |
dc.type | article | eng |
dc.peerreviewed | yes | eng |
sdum.pagination | 161-168 | eng |
sdum.publicationstatus | published | eng |
sdum.volume | 560 | eng |
oaire.citationStartPage | 161 | por |
oaire.citationEndPage | 168 | por |
oaire.citationIssue | 2 | por |
oaire.citationVolume | 560 | por |
dc.identifier.doi | 10.1016/j.jelechem.2003.07.011 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Journal of Electroanalytical Chemistry | por |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Maria Medeiros-JEAC.pdf Acesso restrito! | Documento principal | 163,21 kB | Adobe PDF | Ver/Abrir |