Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/21530
Tipo: Artigo
Título: p-Sulfonic acid calix[n]arenes as organocatalysts for the transesterification reaction of Passiflora seed oil
Autor(es): Liberto, Natália A.
Almeida, Camila G.
Souza, Isabella F.
Silva, Márcio J. da
Fernandes, Sergio A.
Hyaric, Mireille Le
Abstract: The catalytic activity of p-sulfonic acid calix[4]arene was studied in the transesterification reactions of Passiflora seed oil with methanol or ethanol. Calix[n]arenes are highly versatile organocatalysts and conversion rates >98 % were obtained for the transformation of Passiflora seed oil to its methyl or ethyl esters after 5 h of reaction in the presence of p-sulfonic acid calix[4]arene (3.52 mol % in ethanol; 5.28 mol % in methanol). Moreover, the organocatalyst was recovered and reused in two subsequent cycles without a significant decrease in the activity or selectivity. The use of a non-corrosive and reusable organocatalyst is the positive aspect of this process.
Palavras-chave: Seed oil
Calix[n]arenes
Catalysis
Biodiesel
Fatty acids
Editor: Monatshefte für Chemie - Chemical Monthly
Tipo de Acesso: Springer Nature Switzerland AG.
URI: http://dx.doi.org/10.1007/s00706-015-1546-0
http://www.locus.ufv.br/handle/123456789/21530
Data do documento: 19-Ago-2015
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
artigo.pdftexto completo670,59 kBAdobe PDFThumbnail
Visualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.