Synthesis of fragrance compounds from biorenewables : tandem hydroformylation–acetalization of bicyclic monoterpenes.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorFreitas, Marina Caneschi de-
Autor(es): dc.creatorVieira, Camila Grossi-
Autor(es): dc.creatorSantos, Eduardo Nicolau dos-
Autor(es): dc.creatorGusevskaya, Elena Vitalievna-
Data de aceite: dc.date.accessioned2025-08-21T15:36:06Z-
Data de disponibilização: dc.date.available2025-08-21T15:36:06Z-
Data de envio: dc.date.issued2017-06-29-
Data de envio: dc.date.issued2017-06-29-
Data de envio: dc.date.issued2013-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/8123-
Fonte completa do material: dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1002/cctc.201200948/abstract-
Fonte completa do material: dc.identifierhttps://doi.org/10.1002/cctc.201200948-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1019439-
Descrição: dc.descriptionThe Rhodium-catalyzed tandem hydroformylation–acetalization of the terpenes 3-carene, 2-carene, a-pinene, and b-pinene was studied in ethanol solutions in the presence of PPh3 or tris(O-tert-butylphenyl)phosphate, P(O-o-tBuPh)3, ligands. All these terpenes are constituents of turpentine oils obtained commercially from coniferous trees. b-Pinene gave the corresponding aldehyde and acetal in excellent combined yields in both systems. 3-Carene, 2-carene, and a-pinene, which contain sterically encumbered endocyclic double bonds, showed an extremely low reactivity with PPh3. The use of P(O-o-tBuPh)3 not only accelerated the hydroformylation of all four substrates remarkably but also increased the acetalization activity of the catalyst. In the Rh/P(O-o-tBuPh)3 system, various fragrance acetals and aldehydes were obtained from these renewable substrates in nearly quantitative combined yields. The process was performed under mild conditions, in environmentally friendly ethanol as a solvent, and in the absence of acid cocatalysts.-
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Idioma: dc.languageen-
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Título: dc.titleSynthesis of fragrance compounds from biorenewables : tandem hydroformylation–acetalization of bicyclic monoterpenes.-
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