Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/5027
Title: Heteropoly acid catalysts in the valorization of the essential oils : acetoxylation of b-caryophyllene.
Authors: Rocha, Kelly Alessandra da Silva
Rodrigues, Nathália V. S.
Kozhevnikov, Ivan V.
Gusevskaya, Elena Vitalievna
Keywords: Acetoxylation
Acid catalysis
Heteropoly acid
Issue Date: 2010
Citation: ROCHA, K. A. da S. et al. Heteropoly acid catalysts in the valorization of the essential oils: acetoxylation of b-caryophyllene. Applied Catalysis. A, General, v. 374, p. 87-94, 2010. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0926860X09008084>. Acesso em: 02 fev. 2015.
Abstract: H3PW12O40 (PW), the strongest heteropoly acid in the Keggin series, is an active and environmentally friendly catalyst for the liquid-phase conversion of b-caryophyllene (1) to b-caryolanyl acetate (2) in homogeneous and heterogeneous systems. An efficient and clean method for the synthesis of 2, providing amixture containing two stereoisomeric b-caryolanyl acetates 2a and 2b, 2a/2b = 80/20 mol/ mol, with 100% GC yield, has been developed using PW as a homogeneous catalyst under mild reaction conditions. The reaction occurs at 25 8C with a catalyst turnover number of 2000. The catalyst can be recovered without neutralization and reused without loss of activity and selectivity.
URI: http://www.repositorio.ufop.br/handle/123456789/5027
metadata.dc.identifier.doi: https://doi.org/10.1016/j.apcata.2009.11.032
ISSN: 0926-860X
metadata.dc.rights.license: O periódico Applied Catalysis A: General concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581341046888.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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