Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst

Autores
Bennardi, Daniel Oscar; Romanelli, Gustavo Pablo; Jios, Jorge Luis; Autino, Juan Carlos; Baronetti, Graciela Teresita; Thomas, Horacio Jorge
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, we report the use of bulk and silica-supported Wells-Dawson acid (H2P2W18O62.24H2O) as reusable, heterogeneous catalysts to obtain substituted flavones and chromones for the cyclization of 1-(2-hydroxyphenyl)-3-aryl-1,3-propanediones. The reaction experiments were performed using toluene as solvent at reflux and in the absence of solvent, at 110°C. Under these conditions eleven examples were obtained with very good yields (82-91%) and high selectivity. The catalysts were easily recycled and reused without loss of their catalytic activity. The presented synthetic method is a simple, clean and environmentally friendly alternative for synthesizing substituted flavones and chromones.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Facultad de Ciencias Agrarias y Forestales
Laboratorio de Servicios a la Industria y al Sistema Científico
Materia
Química
Acid catalysis
Chromones
Flavones
H2P2W18O62.24H2O
Silica gel-supported catalyst
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/83026
Acceder
id SEDICI_6877b61a64b40777ae5a97752041d08d
oai_identifier_str oai:sedici.unlp.edu.ar:10915/83026
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalystBennardi, Daniel OscarRomanelli, Gustavo PabloJios, Jorge LuisAutino, Juan CarlosBaronetti, Graciela TeresitaThomas, Horacio JorgeQuímicaAcid catalysisChromonesFlavonesH2P2W18O62.24H2OSilica gel-supported catalystIn this work, we report the use of bulk and silica-supported Wells-Dawson acid (H2P2W18O62.24H2O) as reusable, heterogeneous catalysts to obtain substituted flavones and chromones for the cyclization of 1-(2-hydroxyphenyl)-3-aryl-1,3-propanediones. The reaction experiments were performed using toluene as solvent at reflux and in the absence of solvent, at 110°C. Under these conditions eleven examples were obtained with very good yields (82-91%) and high selectivity. The catalysts were easily recycled and reused without loss of their catalytic activity. The presented synthetic method is a simple, clean and environmentally friendly alternative for synthesizing substituted flavones and chromones.Centro de Investigación y Desarrollo en Ciencias AplicadasFacultad de Ciencias Agrarias y ForestalesLaboratorio de Servicios a la Industria y al Sistema Científico2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf123-130http://sedici.unlp.edu.ar/handle/10915/83026enginfo:eu-repo/semantics/altIdentifier/issn/1551--701info:eu-repo/semantics/altIdentifier/doi/10.3998/ark.5550190.0009.b12info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:40Zoai:sedici.unlp.edu.ar:10915/83026Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:41.306SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
title Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
spellingShingle Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
Bennardi, Daniel Oscar
Química
Acid catalysis
Chromones
Flavones
H2P2W18O62.24H2O
Silica gel-supported catalyst
title_short Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
title_full Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
title_fullStr Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
title_full_unstemmed Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
title_sort Synthesis of substituted flavones and chromones using a Wells-Dawson heteropolyacid as catalyst
dc.creator.none.fl_str_mv Bennardi, Daniel Oscar
Romanelli, Gustavo Pablo
Jios, Jorge Luis
Autino, Juan Carlos
Baronetti, Graciela Teresita
Thomas, Horacio Jorge
author Bennardi, Daniel Oscar
author_facet Bennardi, Daniel Oscar
Romanelli, Gustavo Pablo
Jios, Jorge Luis
Autino, Juan Carlos
Baronetti, Graciela Teresita
Thomas, Horacio Jorge
author_role author
author2 Romanelli, Gustavo Pablo
Jios, Jorge Luis
Autino, Juan Carlos
Baronetti, Graciela Teresita
Thomas, Horacio Jorge
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Química
Acid catalysis
Chromones
Flavones
H2P2W18O62.24H2O
Silica gel-supported catalyst
topic Química
Acid catalysis
Chromones
Flavones
H2P2W18O62.24H2O
Silica gel-supported catalyst
dc.description.none.fl_txt_mv In this work, we report the use of bulk and silica-supported Wells-Dawson acid (H2P2W18O62.24H2O) as reusable, heterogeneous catalysts to obtain substituted flavones and chromones for the cyclization of 1-(2-hydroxyphenyl)-3-aryl-1,3-propanediones. The reaction experiments were performed using toluene as solvent at reflux and in the absence of solvent, at 110°C. Under these conditions eleven examples were obtained with very good yields (82-91%) and high selectivity. The catalysts were easily recycled and reused without loss of their catalytic activity. The presented synthetic method is a simple, clean and environmentally friendly alternative for synthesizing substituted flavones and chromones.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Facultad de Ciencias Agrarias y Forestales
Laboratorio de Servicios a la Industria y al Sistema Científico
description In this work, we report the use of bulk and silica-supported Wells-Dawson acid (H2P2W18O62.24H2O) as reusable, heterogeneous catalysts to obtain substituted flavones and chromones for the cyclization of 1-(2-hydroxyphenyl)-3-aryl-1,3-propanediones. The reaction experiments were performed using toluene as solvent at reflux and in the absence of solvent, at 110°C. Under these conditions eleven examples were obtained with very good yields (82-91%) and high selectivity. The catalysts were easily recycled and reused without loss of their catalytic activity. The presented synthetic method is a simple, clean and environmentally friendly alternative for synthesizing substituted flavones and chromones.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/83026
url http://sedici.unlp.edu.ar/handle/10915/83026
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1551--701
info:eu-repo/semantics/altIdentifier/doi/10.3998/ark.5550190.0009.b12
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/3.0/
Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/3.0/
Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
dc.format.none.fl_str_mv application/pdf
123-130
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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