Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFBA |
Texto Completo: | http://repositorio.ufba.br/ri/handle/ri/15534 |
Resumo: | p. 642-647 |
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Cunha, Silvio do DesterroSantana, Lourenço Luis Botelho deCunha, Silvio do DesterroSantana, Lourenço Luis Botelho de2014-08-11T13:13:53Z2014-08-11T13:13:53Z20120100-4042http://repositorio.ufba.br/ri/handle/ri/15534v. 35, n. 3p. 642-647This work describes an undergraduate experiment for the synthesis of Knoevenagel adduct of Meldrum's acid with nine aromatic aldehydes, using water as the solvent, in an adaptation of a previously reported synthetic protocol. The synthesis was straightforward, requiring a period of two hours, and is suitable for undergraduate experimental courses on green chemistry. In addition, quantitative analyses of the relative reactivity of p-nitro-benzaldehyde and p-metoxi-benzaldehyde was evaluated through the competitive reaction of equimolar amounts of these aldehydes with one equivalent of Meldrum's acid, using gas chromatography to quantify the composition of the reaction mixture.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-08-11T13:13:53Z No. of bitstreams: 1 Silvio Cunha.pdf: 1791077 bytes, checksum: eb95c06669f473600fcdf309b6a90343 (MD5)Made available in DSpace on 2014-08-11T13:13:53Z (GMT). No. of bitstreams: 1 Silvio Cunha.pdf: 1791077 bytes, checksum: eb95c06669f473600fcdf309b6a90343 (MD5) Previous issue date: 2012http://dx.doi.org/10.1590/S0100-40422012000300036reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAArylidene Meldrum's acidUndergraduate organic chemistry experimentGreen chemistryCondensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica VerdeQuímica Novainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessporORIGINALSilvio Cunha.pdfSilvio Cunha.pdfapplication/pdf1791077https://repositorio.ufba.br/bitstream/ri/15534/1/Silvio%20Cunha.pdfeb95c06669f473600fcdf309b6a90343MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/15534/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTSilvio Cunha.pdf.txtSilvio Cunha.pdf.txtExtracted texttext/plain34175https://repositorio.ufba.br/bitstream/ri/15534/3/Silvio%20Cunha.pdf.txt4d28fe659423e32f49d2768d0056ec38MD53ri/155342022-08-08 13:17:50.159oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:50Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
dc.title.pt_BR.fl_str_mv |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
dc.title.alternative.pt_BR.fl_str_mv |
Química Nova |
title |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
spellingShingle |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde Cunha, Silvio do Desterro Arylidene Meldrum's acid Undergraduate organic chemistry experiment Green chemistry |
title_short |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
title_full |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
title_fullStr |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
title_full_unstemmed |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
title_sort |
Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
author |
Cunha, Silvio do Desterro |
author_facet |
Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de |
author_role |
author |
author2 |
Santana, Lourenço Luis Botelho de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de |
dc.subject.por.fl_str_mv |
Arylidene Meldrum's acid Undergraduate organic chemistry experiment Green chemistry |
topic |
Arylidene Meldrum's acid Undergraduate organic chemistry experiment Green chemistry |
description |
p. 642-647 |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012 |
dc.date.accessioned.fl_str_mv |
2014-08-11T13:13:53Z |
dc.date.available.fl_str_mv |
2014-08-11T13:13:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
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publishedVersion |
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http://repositorio.ufba.br/ri/handle/ri/15534 |
dc.identifier.issn.none.fl_str_mv |
0100-4042 |
dc.identifier.number.pt_BR.fl_str_mv |
v. 35, n. 3 |
identifier_str_mv |
0100-4042 v. 35, n. 3 |
url |
http://repositorio.ufba.br/ri/handle/ri/15534 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.country.fl_str_mv |
Brasil |
dc.source.pt_BR.fl_str_mv |
http://dx.doi.org/10.1590/S0100-40422012000300036 |
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reponame:Repositório Institucional da UFBA instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
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Universidade Federal da Bahia (UFBA) |
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UFBA |
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UFBA |
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Repositório Institucional da UFBA |
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Repositório Institucional da UFBA |
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