Microwave-assisted Passerini reactions under solvent-free conditions

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Autor principal: Barreto, Angélica de Fátima S
Publication Date: 2011
Outros Autores: Vercillo, Otilie E, Andrade, Carlos Kleber Z
Formato: Article
Idioma: eng
Fonte: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/28083
https://dx.doi.org/10.1590/S0103-50532011000300008
Resumo: Various α-acyloxy carboxyamides were easily obtained combining three building blocks in one step: a carboxylic acid, an aldehyde and an isonitrile (Passerini reaction), using microwave irradiation under solvent-free conditions. The products were obtained in good yields (61-90%) and in short reaction times (< 5 min), using two different temperatures (60 and 120 ºC). At 120 ºC, the yields were higher and the reactions faster (< 1 min). Most of the obtained products are multifunctional allowing their application in consecutive Passerini reactions
Descrição
Resumo:Various α-acyloxy carboxyamides were easily obtained combining three building blocks in one step: a carboxylic acid, an aldehyde and an isonitrile (Passerini reaction), using microwave irradiation under solvent-free conditions. The products were obtained in good yields (61-90%) and in short reaction times (< 5 min), using two different temperatures (60 and 120 ºC). At 120 ºC, the yields were higher and the reactions faster (< 1 min). Most of the obtained products are multifunctional allowing their application in consecutive Passerini reactions