Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/15534
metadata.dc.type: | Artigo de Periódico |
Title: | Condensação de Knoevenagel de aldeídos aromáticos com o ácido de Meldrum em água: uma aula experimental de Química Orgânica Verde |
Other Titles: | Química Nova |
Authors: | Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de |
metadata.dc.creator: | Cunha, Silvio do Desterro Santana, Lourenço Luis Botelho de |
Abstract: | 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. |
Keywords: | 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 |
Issue Date: | 2012 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Silvio Cunha.pdf_5 | 1,75 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.