Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Johannes W. de Boer"'
Publikováno v:
Inorganics, Vol 4, Iss 2, p 11 (2016)
Many paint, ink and coating formulations contain alkyd-based resins which cure via autoxidation mechanisms. Whilst cobalt-soaps have been used for many decades, there is a continuing and accelerating desire by paint companies to develop alternatives
Externí odkaz:
https://doaj.org/article/1a33c127dafe43e9913ec1778a3da841
Autor:
Johann B. Kasper, Pattama Saisaha, Maurits de Roo, Mitchell J. Groen, Laia Vicens, Margarida Borrell, Johannes W. de Boer, Ronald Hage, Miquel Costas, Wesley R. Browne
Publikováno v:
ChemCatChem, 15(1):e202201072. WILEY-V C H VERLAG GMBH
The mechanism and the reactive species involved in the oxidation of alkenes, and alcohols with H2O2, catalysed by an in situ prepared mixture of a MnII salt, pyridine-2-carboxylic acid and a ketone is elucidated using substrate competition experiment
Publikováno v:
European Journal of Inorganic Chemistry
European Journal of Inorganic Chemistry, 2018(23), 2621-2630. WILEY-V C H VERLAG GMBH
European Journal of Inorganic Chemistry, 2018(23), 2621-2630. WILEY-V C H VERLAG GMBH
Soluble model compounds, such as flavones, are frequently employed in initial and mechanistic studies under homogeneous conditions in the search for effective bleaching catalysts for raw cotton. The relevance of model substrates, such as morin and ch
Autor:
Pattama Saisaha, Tim G. Meinds, Jia Jia Dong, Wesley R. Browne, Francesco Mecozzi, Johannes W. de Boer, Ronald Hage, Johann B. Kasper
Publikováno v:
ACS Catalysis, 6(6), 3486-3495. AMER CHEMICAL SOC
The oxidation of alkenes, alkanes, and alcohols with H2O2 is catalyzed efficiently using an in situ prepared catalyst comprised of a MnII salt and pyridine-2-carboxylic acid (PCA) together with a ketone in a wide range of solvents. The mechanism by w
Publikováno v:
European Journal of Inorganic Chemistry, 3532-3542. WILEY-V C H VERLAG GMBH
ISSUE=21;STARTPAGE=3532;ENDPAGE=3542;ISSN=1434-1948;TITLE=European Journal of Inorganic Chemistry
ISSUE=21;STARTPAGE=3532;ENDPAGE=3542;ISSN=1434-1948;TITLE=European Journal of Inorganic Chemistry
The oxidation of substrates, such as alkenes, with H2O2 and the catalyst [Mn-2(IV)(mu-O)(3)(tmtacn)(2)](2+) (1; tmtacn = 1,4,7-tri-methyl-1,4,7-triazacyclononane) is promoted by the addition of carboxylic acids through the in situ formation of bis-(c
Publikováno v:
European Journal of Inorganic Chemistry. 2015:3432-3456
Manganese-based oxidation catalysis plays a central role both in nature, in the oxidation of water in photosystem II (PSII) and the control of reactive oxygen species, as well as in chemical processes, in the oxidation of organic substrates and bleac
Autor:
Pattama Saisaha, Duenpen Unjaroen, Johannes W. de Boer, Paul L. Alsters, Ben L. Feringa, Emma C. Harvey, Francesco Mecozzi, Jia Jia Dong, Wesley R. Browne, Dirk Pijper
Publikováno v:
Chemsuschem, 6(9), 1774-1778. WILEY-V C H VERLAG GMBH
An efficient and simple method for selective oxidation of secondary alcohols and oxidation of alkanes to ketones is reported. An insitu prepared catalyst is employed based on manganese(II) salts, pyridine-2-carboxylic acid, and butanedione, which pro
Autor:
Karin Maaijen, Erica C. M. Wenker, Hugh Wynn Gibbs, Wesenhagen Philana Veronica, Ronald Hage, Franjo Gol, Johannes W. de Boer
Publikováno v:
European Journal of Inorganic Chemistry. 2013:3581-3591
Paint formulations, based either on organic solvents or on water, often contain alkyd resins that depend on catalysts for their oxidative curing. Cobalt carboxylates are the most widely used to date, but the use of these compounds is under pressure b
Publikováno v:
Chemical Society Reviews. 42(5):2059-2074
The development of new catalytic systems for cis-dihydroxylation and epoxidation of alkenes, based on atom economic and environmentally friendly concepts, is a major contemporary challenge. In recent years, several systems based on manganese catalyst
Publikováno v:
Inorganics, Vol 4, Iss 2, p 11 (2016)
Many paint, ink and coating formulations contain alkyd-based resins which cure via autoxidation mechanisms. Whilst cobalt-soaps have been used for many decades, there is a continuing and accelerating desire by paint companies to develop alternatives