Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/10367
Title: Heteropoly acid catalysts in upgrading of biorenewables : cycloaddition of aldehydes to monoterpenes in green solvents.
Authors: Cotta, Rafaela Ferreira
Rocha, Kelly Alessandra da Silva
Kozhevnikova, Elena Fedorovna
Kozhevnikov, Ivan V.
Gusevskaya, Elena Vitalievna
Keywords: Biomass-based feedstock
Heterogeneous acid catalysis
Monoterpenes
Issue Date: 2017
Citation: COTTA, R. F. et al. Heteropoly acid catalysts in upgrading of biorenewables : cycloaddition of aldehydes to monoterpenes in green solvents. Applied Catalysis B: Environmental, v. 217, p. 92-99, nov. 2017. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0926337317304745>. Acesso em: 05 abr. 2021
Abstract: Acidic Cs salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40 (CsPW), is excellent solid acid catalyst for liquid-phase cycloaddition reactions of biomass-based and easily available from essential oils monoterpenic compounds, such as limonene, α-terpineol, α-pinene, β-pinene and nerol, with aldehydes, including benzaldehyde, crotonaldehyde as well as biomass-derived cuminaldehyde and trans-cinnamaldehyde. The reactions give oxabicyclo[3.3.1]nonene compounds potentially useful for the fragrance and pharmaceutical industries in good to excellent yields. The process is environmentally benign and can be performed in biomass-derived solvent 2-methyltetrahydrofuran and eco-friendly “green” organic solvents such as dimethylcarbonate and diethylcarbonate under mild conditions at low catalyst loadings without leaching problems. The solid CsPW catalyst can be easily separated from the reaction media and low-boiling solvents can be removed by distillation. Silica-supported H3PW12O40 also demonstrated good performance in these reactions.
URI: http://www.repositorio.ufop.br/handle/123456789/10367
metadata.dc.identifier.uri2: https://www.sciencedirect.com/science/article/pii/S0926337317304745#!
ISSN: 09263373
Appears in Collections:DEQUI - Artigos publicados em periódicos

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