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https://repositorio.ufba.br/handle/ri/15534
metadata.dc.type: | Artigo de Periódico |
Título : | Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
Otros títulos : | Química Nova |
Autor : | Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de |
metadata.dc.creator: | Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de |
Resumen : | This 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. |
Palabras clave : | Arylidene Meldrum's acid Undergraduate organic chemistry experiment Green chemistry |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI : | http://repositorio.ufba.br/ri/handle/ri/15534 |
Fecha de publicación : | 2012 |
Aparece en las colecciones: | Artigo Publicado em Periódico (Química) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Silvio Cunha.pdf_5 | 1,75 MB | Adobe PDF | Visualizar/Abrir |
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