Heteropoly acid-catalyzed β-caryophyllene chemical transformations : synthesis route of value-added commercial products from components found in biorenewable resources.
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2023
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Resumo
More sustainable catalytic processes applied to different reactions for of biorenewable derivatives production is
an important trend in chemical industry, which constantly needs to update its processes for obtaining inputs not
produced in sufficient quantity by nature, or with superior physicochemical properties to those of compounds
acquaintances. This work reports the chemical transformation of β-caryophyllene, a sesquiterpene present in
biorenewable materials, using the commercial heteropoly acid catalyst H3PW12O40. The process performed under
conditions technologically and environmentally attractive, using less harmful ketone solvents (2-butanone and
acetone). The products obtained were (-)-clovene, β-caryolanol and β-clovanol, at total yield 70–80%, by
isomerization reaction associated with hydration reactions. All these products have known applications in
different sectors of the fine chemicals industry, whether in isolated forms or as mixtures. (-)-Clovene and
β-caryolanol have significantly higher commercial value, compared to β-caryophyllene. There are known applications for β-clovanol, although the compound has not yet been commercialized, making the process described
here attractive for its production on an industrial scale. H3PW12O40 showed catalytic performance superior to
H2SO4, a conventional mineral acid catalyst.
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Bio-renewables, Fine chemical industry, Heteropoly acid, β-Caryophyllene, Isomerization and hydration
Citação
SILVA, M. M. B.; VIEIRA, C. G.; ROCHA, K. A. da S. Heteropoly acid-catalyzed β-caryophyllene chemical transformations: synthesis route of value-added commercial products from components found in biorenewable resources. Molecular Catalysis, v. 547, artigo 113302, 2023. Disponível em: <https://www.sciencedirect.com/science/article/pii/S2468823123003863>. Acesso em: 01 ago. 2023.