Electrochemical nitration of naphthalene in micellar systems

Detalhes bibliográficos
Autor(a) principal: Cortona,Mariana N
Data de Publicação: 1997
Outros Autores: Vettorazzi,Nelio R, Silber,Juana J, Sereno,Leonides E
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000400010
Resumo: The nitration of naphthalene (NapH) at a Pt electrode in NaNO2 aqueous solutions in the absence and presence of a non-ionic surfactant, Brij 35, was studied. The electrochemical behavior of the reactants NapH and NaNO2 and their mixture was investigated by cyclic voltammetry to determine their electrolysis conditions. The peak current of NapH decreases monotonically with the NaNO2 concentration, indicating that the oxidation product of NO2- ion interacts with NapH·+. Controlled potential electrolysis were carried out and the products were analyzed by HPLC. 1-nitronaphthalene, 2-nitronaphthalene, 1,2-naphthoquinone, 1,4-naphthoquinone and 1,1'-Binaphthyl (BinapH) were obtained in the micellar solution while in the absence of Brij 35 only naphthoquinones and BinapH were detected. The higher selectivity for 2-NO2NapH in comparison to non-aqueous homogeneous media may be induced by the micelles microenvironment.
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spelling Electrochemical nitration of naphthalene in micellar systemselectro oxidationmicellesnitrationnaphthaleneThe nitration of naphthalene (NapH) at a Pt electrode in NaNO2 aqueous solutions in the absence and presence of a non-ionic surfactant, Brij 35, was studied. The electrochemical behavior of the reactants NapH and NaNO2 and their mixture was investigated by cyclic voltammetry to determine their electrolysis conditions. The peak current of NapH decreases monotonically with the NaNO2 concentration, indicating that the oxidation product of NO2- ion interacts with NapH·+. Controlled potential electrolysis were carried out and the products were analyzed by HPLC. 1-nitronaphthalene, 2-nitronaphthalene, 1,2-naphthoquinone, 1,4-naphthoquinone and 1,1'-Binaphthyl (BinapH) were obtained in the micellar solution while in the absence of Brij 35 only naphthoquinones and BinapH were detected. The higher selectivity for 2-NO2NapH in comparison to non-aqueous homogeneous media may be induced by the micelles microenvironment.Sociedade Brasileira de Química1997-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000400010Journal of the Brazilian Chemical Society v.8 n.4 1997reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531997000400010info:eu-repo/semantics/openAccessCortona,Mariana NVettorazzi,Nelio RSilber,Juana JSereno,Leonides Eeng2010-11-19T00:00:00Zoai:scielo:S0103-50531997000400010Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2010-11-19T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrochemical nitration of naphthalene in micellar systems
title Electrochemical nitration of naphthalene in micellar systems
spellingShingle Electrochemical nitration of naphthalene in micellar systems
Cortona,Mariana N
electro oxidation
micelles
nitration
naphthalene
title_short Electrochemical nitration of naphthalene in micellar systems
title_full Electrochemical nitration of naphthalene in micellar systems
title_fullStr Electrochemical nitration of naphthalene in micellar systems
title_full_unstemmed Electrochemical nitration of naphthalene in micellar systems
title_sort Electrochemical nitration of naphthalene in micellar systems
author Cortona,Mariana N
author_facet Cortona,Mariana N
Vettorazzi,Nelio R
Silber,Juana J
Sereno,Leonides E
author_role author
author2 Vettorazzi,Nelio R
Silber,Juana J
Sereno,Leonides E
author2_role author
author
author
dc.contributor.author.fl_str_mv Cortona,Mariana N
Vettorazzi,Nelio R
Silber,Juana J
Sereno,Leonides E
dc.subject.por.fl_str_mv electro oxidation
micelles
nitration
naphthalene
topic electro oxidation
micelles
nitration
naphthalene
description The nitration of naphthalene (NapH) at a Pt electrode in NaNO2 aqueous solutions in the absence and presence of a non-ionic surfactant, Brij 35, was studied. The electrochemical behavior of the reactants NapH and NaNO2 and their mixture was investigated by cyclic voltammetry to determine their electrolysis conditions. The peak current of NapH decreases monotonically with the NaNO2 concentration, indicating that the oxidation product of NO2- ion interacts with NapH·+. Controlled potential electrolysis were carried out and the products were analyzed by HPLC. 1-nitronaphthalene, 2-nitronaphthalene, 1,2-naphthoquinone, 1,4-naphthoquinone and 1,1'-Binaphthyl (BinapH) were obtained in the micellar solution while in the absence of Brij 35 only naphthoquinones and BinapH were detected. The higher selectivity for 2-NO2NapH in comparison to non-aqueous homogeneous media may be induced by the micelles microenvironment.
publishDate 1997
dc.date.none.fl_str_mv 1997-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000400010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000400010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50531997000400010
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.8 n.4 1997
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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