Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)

Detalhes bibliográficos
Autor(a) principal: Cardoso, Luiz Augusto Martins
Data de Publicação: 2004
Outros Autores: Alves Junior, Walter, Gonzaga, Angélica Raimunda Esquerdo, Aguiar, Leila Maria Guimaraes, Andrade, Heloysa Martins Carvalho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7915
Resumo: Texto completo:acesso restrito. p. 189-197
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spelling Cardoso, Luiz Augusto MartinsAlves Junior, WalterGonzaga, Angélica Raimunda EsquerdoAguiar, Leila Maria GuimaraesAndrade, Heloysa Martins CarvalhoCardoso, Luiz Augusto MartinsAlves Junior, WalterGonzaga, Angélica Raimunda EsquerdoAguiar, Leila Maria GuimaraesAndrade, Heloysa Martins Carvalho2013-01-16T14:52:37Z20041381-1169http://www.repositorio.ufba.br/ri/handle/ri/7915v. 209, n. 1-2Texto completo:acesso restrito. p. 189-197Methoxyacetophenones were synthesized through Friedel–Crafts acylation of anisole with acetic anhydride using a silica-supported heteropolyphosphotungstic acid (HPW) catalyst. High conversions and very high p-selectivity were attained in the temperature range of 61–110 °C.Nevertheless, the catalyst seemed to deactivate after half an hour at 61 and 83 °C, mainly due to strong but reversible adsorption of products. Cleaning the spent catalyst recovered the activity, indicating that it was stable under the experimental conditions and that the active HPW was not fairly leached from the silica support. In spite of this, the slower but progressive coking deactivated the catalyst.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2013-01-16T14:52:36Z No. of bitstreams: 1 1-s2.0-S1381116903006101-main.pdf: 158937 bytes, checksum: caf47d94f832e66419889e186ff9cc49 (MD5)Made available in DSpace on 2013-01-16T14:52:37Z (GMT). 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dc.title.pt_BR.fl_str_mv Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
dc.title.alternative.pt_BR.fl_str_mv Journal of Molecular Catalysis A: Chemica
title Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
spellingShingle Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
Cardoso, Luiz Augusto Martins
Friedel–Crafts acylation
Methoxyacetophenones
Heteropolyacids
Acid anhydride
Anisole
title_short Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
title_full Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
title_fullStr Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
title_full_unstemmed Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
title_sort Friedel–Crafts acylation of anisole with acetic anhydride over silica-supported heteropolyphosphotungstic acid (HPW/SiO2)
author Cardoso, Luiz Augusto Martins
author_facet Cardoso, Luiz Augusto Martins
Alves Junior, Walter
Gonzaga, Angélica Raimunda Esquerdo
Aguiar, Leila Maria Guimaraes
Andrade, Heloysa Martins Carvalho
author_role author
author2 Alves Junior, Walter
Gonzaga, Angélica Raimunda Esquerdo
Aguiar, Leila Maria Guimaraes
Andrade, Heloysa Martins Carvalho
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Cardoso, Luiz Augusto Martins
Alves Junior, Walter
Gonzaga, Angélica Raimunda Esquerdo
Aguiar, Leila Maria Guimaraes
Andrade, Heloysa Martins Carvalho
Cardoso, Luiz Augusto Martins
Alves Junior, Walter
Gonzaga, Angélica Raimunda Esquerdo
Aguiar, Leila Maria Guimaraes
Andrade, Heloysa Martins Carvalho
dc.subject.por.fl_str_mv Friedel–Crafts acylation
Methoxyacetophenones
Heteropolyacids
Acid anhydride
Anisole
topic Friedel–Crafts acylation
Methoxyacetophenones
Heteropolyacids
Acid anhydride
Anisole
description Texto completo:acesso restrito. p. 189-197
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2013-01-16T14:52:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7915
dc.identifier.issn.none.fl_str_mv 1381-1169
dc.identifier.number.pt_BR.fl_str_mv v. 209, n. 1-2
identifier_str_mv 1381-1169
v. 209, n. 1-2
url http://www.repositorio.ufba.br/ri/handle/ri/7915
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elservier
publisher.none.fl_str_mv Elservier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.molcata.2003.08.022
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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