Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water

Detalhes bibliográficos
Autor(a) principal: Ferreira,João M. G. O.
Data de Publicação: 2018
Outros Autores: Resende Filho,João B. M. de, Batista,Poliane K., Teotonio,Ercules E. S., Vale,Juliana A.
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=S0103-50532018000701382
Resumo: This paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of ethanol/water (3:7, v/v). This medium favored the uncatalyzed Knoevenagel reactions and easy workup products can be obtained by precipitation in this medium and showed good isolated yields (55-100%) in short reaction times (1-60 min).
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spelling Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and WaterKnoevenagel condensationethanol/watergreen approachbinary mixtureactive methylene compounds and aldehydesThis paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of ethanol/water (3:7, v/v). This medium favored the uncatalyzed Knoevenagel reactions and easy workup products can be obtained by precipitation in this medium and showed good isolated yields (55-100%) in short reaction times (1-60 min).Sociedade Brasileira de Química2018-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000701382Journal of the Brazilian Chemical Society v.29 n.7 2018reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20170240info:eu-repo/semantics/openAccessFerreira,João M. G. O.Resende Filho,João B. M. deBatista,Poliane K.Teotonio,Ercules E. S.Vale,Juliana A.eng2018-06-20T00:00:00Zoai:scielo:S0103-50532018000701382Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2018-06-20T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
title Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
spellingShingle Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
Ferreira,João M. G. O.
Knoevenagel condensation
ethanol/water
green approach
binary mixture
active methylene compounds and aldehydes
title_short Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
title_full Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
title_fullStr Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
title_full_unstemmed Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
title_sort Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
author Ferreira,João M. G. O.
author_facet Ferreira,João M. G. O.
Resende Filho,João B. M. de
Batista,Poliane K.
Teotonio,Ercules E. S.
Vale,Juliana A.
author_role author
author2 Resende Filho,João B. M. de
Batista,Poliane K.
Teotonio,Ercules E. S.
Vale,Juliana A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ferreira,João M. G. O.
Resende Filho,João B. M. de
Batista,Poliane K.
Teotonio,Ercules E. S.
Vale,Juliana A.
dc.subject.por.fl_str_mv Knoevenagel condensation
ethanol/water
green approach
binary mixture
active methylene compounds and aldehydes
topic Knoevenagel condensation
ethanol/water
green approach
binary mixture
active methylene compounds and aldehydes
description This paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of ethanol/water (3:7, v/v). This medium favored the uncatalyzed Knoevenagel reactions and easy workup products can be obtained by precipitation in this medium and showed good isolated yields (55-100%) in short reaction times (1-60 min).
publishDate 2018
dc.date.none.fl_str_mv 2018-07-01
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=S0103-50532018000701382
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000701382
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.21577/0103-5053.20170240
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.29 n.7 2018
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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