Epoxidation of stilbene using supported gold nanoparticles: cumyl peroxyl radical activation at the gold nanoparticle surface

The catalytic epoxidation of cis-stilbene using cumene as a solvent in the presence of supported gold nanoparticles (AuNP) yields a mixture of cis and trans-stilbene oxides. EPR and product distribution studies support a new mechanistic proposal where oxygen centred radicals activate the AuNP surfac...

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Published inChemical communications (Cambridge, England) Vol. 50; no. 18; pp. 2289 - 2291
Main Authors Crites, Charles-Oneil L, Hallet-Tapley, Geniece L, González-Béjar, María, Netto-Ferreira, J C, Scaiano, Juan C
Format Journal Article
LanguageEnglish
Published England 04.03.2014
Subjects
Cumene
Epoxidation
Gold
Nanoparticles
Oxides
Radicals
Solvents
Surface chemistry
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Summary:The catalytic epoxidation of cis-stilbene using cumene as a solvent in the presence of supported gold nanoparticles (AuNP) yields a mixture of cis and trans-stilbene oxides. EPR and product distribution studies support a new mechanistic proposal where oxygen centred radicals activate the AuNP surface and form active surface oxygen species responsible for the epoxidation products.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc48626e