Heteropoly acid catalysts for the synthesis of fragrance compounds from biorenewables : isomerization of limonene oxide.

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Autor(es): dc.creatorCosta, Vinícius Vieira-
Autor(es): dc.creatorRocha, Kelly Alessandra da Silva-
Autor(es): dc.creatorKozhevnikov, Ivan V.-
Autor(es): dc.creatorKozhevnikova, Elena Fedorovna-
Autor(es): dc.creatorGusevskaya, Elena Vitalievna-
Data de aceite: dc.date.accessioned2025-08-21T15:25:53Z-
Data de disponibilização: dc.date.available2025-08-21T15:25:53Z-
Data de envio: dc.date.issued2017-06-02-
Data de envio: dc.date.issued2017-06-02-
Data de envio: dc.date.issued2013-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/7852-
Fonte completa do material: dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1002/cctc.201300208/abstract-
Fonte completa do material: dc.identifierhttps://doi.org/10.1002/cctc.201300208-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1014480-
Descrição: dc.descriptionThe liquid-phase isomerization of limonene oxide was studied in the presence of heteropoly acid catalysts in aprotic solvents in homogeneous and heterogeneous systems. Among the catalysts were bulk and silica-supported tungstophosphoric acid H3PW12O40 and its acidic Cs salt Cs0.5H0.5PW12O40 (CsPW). The reaction gave dihydrocarvone, a valuable fragrance intermediate, as the main product with turnover numbers of up to 8000. The nature of the solvent had a strong effect on reaction rate and selectivity. CsPW (0.1 mol%) was found to be a highly efficient and truly heterogeneous catalyst for this reaction, providing 82% yield of dihydrocarvone in 1,4-dioxane as a solvent under ambient conditions. This simple catalytic method represents economically attractive route to industrially important compounds starting from bio-renewable substrates easily available from essential oils.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Título: dc.titleHeteropoly acid catalysts for the synthesis of fragrance compounds from biorenewables : isomerization of limonene oxide.-
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