Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Kelly A. da Silva Rocha"'
Autor:
Elena F. Kozhevnikova, Rafaela Ferreira Cotta, Kelly A. da Silva Rocha, Elena V. Gusevskaya, Ivan V. Kozhevnikov, Rafael A. Martins
Publikováno v:
Catalysis Today. 381:254-260
Acidic cesium salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40 (CsPW), is an excellent solid acid catalyst for the reaction of phenylacetaldehyde with biorenewable monoterpenic alkenes: limonene, α-terpineol, α-pinene and β-pinene. Simu
Autor:
Elena V. Gusevskaya, Kelly A. da Silva Rocha, Augusto Luís Pereira De Meireles, Ivan V. Kozhevnikov, Elena F. Kozhevnikova
Publikováno v:
MOLECULAR CATALYSIS
The isomerization of caryophyllene oxide, one of the most widespread sesquiterpenes found in various essential oils, is catalyzed by the acidic Cs salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40, to give rare polycyclic oxygenated sesquit
Autor:
Kelly A. da Silva Rocha, Elena V. Gusevskaya, Augusto Luís Pereira De Meireles, Elena F. Kozhevnikova, Ivan V. Kozhevnikov
Publikováno v:
Molecular Catalysis
H3PW12O40 heteropoly acid supported on SiO2 and its bulk acidic cesium salt Cs2.5H0.5PW12O40 are demonstrated to be highly active and recyclable solid catalysts for Prins cyclization allowing for the clean, high-yielding synthesis of Florol® from is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30cda309b08449d7570f73e131d115b9
Autor:
Elena F. Kozhevnikova, Ivan V. Kozhevnikov, Kelly A. da Silva Rocha, Rafaela Ferreira Cotta, Elena V. Gusevskaya
Publikováno v:
APPLIED CATALYSIS B-ENVIRONMENTAL
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
Autor:
Kelly A. da Silva Rocha, Elena V. Gusevskaya, Rafaela Ferreira Cotta, Elena F. Kozhevnikova, Ivan V. Kozhevnikov
Publikováno v:
Catalysis Today. 289:14-19
The reactions of biomass-based substrates, i.e., limonene, α-pinene, β-pinene, terpinolene, α-terpineol, nerol and linalool, with benzaldehyde in the presence of tungstophosphoric heteropoly acid H 3 PW 12 O 40 (HPW) supported on silica give an ox
Autor:
Claúdio Júnior Andrade Ribeiro, Ivan V. Kozhevnikov, Kelly A. da Silva Rocha, Elena V. Gusevskaya, Elena F. Kozhevnikova, Matheus Mello Pereira
Publikováno v:
Catalysis Today
© 2018 Elsevier B.V. The isomerization of α-pinene oxide in the presence of Cs2.5H0.5PW12O40 (CsPW) heteropolysalt as solid acid catalyst is reported. The reactions were performed in various solvents, which allowed to obtain trans-carveol, trans-so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73c43ad1952379b1371a585db024706e
Autor:
Caroline de Souza Santos, Kelly A. da Silva Rocha, Camila Grossi Vieira, Maria Stella Palhares Ribeiro
Publikováno v:
Molecular Catalysis. 498:111264
Transformations of the naturally occurring compound (+)-aromadendrene (1) were performed in the presence of the heteropoly acid catalyst H3PW12O40, a technologically efficient homogeneous catalyst, which, in principle, can be recovered from polar sol
Autor:
Vinícius V. Costa, Kelly A. da Silva Rocha, Luiz C.A. Oliveira, Ivan V. Kozhevnikov, Elena F. Kozhevnikova, Elena V. Gusevskaya
Publikováno v:
RSC Advances. 6:43217-43222
The cesium salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40, is an active and environmentally friendly heterogeneous catalyst for the liquid-phase acetylation of nopol and several biomass-derived terpenic alcohols (i.e., α-terpineol, nero
Autor:
Kelly A. da Silva Rocha, Elena V. Gusevskaya, Maíra dos Santos Costa, Augusto Luís Pereira De Meireles, Elena F. Kozhevnikova, Ivan V. Kozhevnikov
Publikováno v:
ChemCatChem. 6:2706-2711
The cesium salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40, is an active and environmentally friendly solid-acid catalyst for the liquid-phase alkoxylation of widespread monoterpenes, such as camphene, limonene, α-pinene, and β-pinene.
Autor:
Rafaela Ferreira Cotta, Kelly A. da Silva Rocha, Ivan V. Kozhevnikov, Elena F. Kozhevnikova, Elena V. Gusevskaya, Rafael A. Martins, Matheus Mello Pereira
Publikováno v:
Applied Catalysis A: General. 584:117173
Terpenes are an abundant class of natural products, which is important for flavor and fragrance industry. Many acid catalyzed reactions used for upgrading terpenes still involve mineral acids as homogeneous catalysts and/or toxic solvents. Heteropoly