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Epoxidation of olefins with molecular oxygen as the oxidant using gold catalysts supported on polyoxometalates

Tebandeke, Emmanuel LU ; Coman, Cristina; Guillois, Kevin LU ; Canning, Griffin; Ataman, Evren LU ; Knudsen, Jan LU ; Wallenberg, Reine LU ; Ssekaalo, Henry; Schnadt, Joachim LU and Wendt, Ola LU (2014) In Green Chemistry 16(3). p.1586-1593
Abstract
4 We report a highly efficient green process for the epoxidation of various olefins using polyoxometalate-supported gold nanoparticles as catalysts and using oxygen as the terminal oxidant. The nanoparticles were prepared through thermal reduction of Au(III) and were characterised by TEM and XPS. The elemental composition of the catalyst was also determined using ICP. The results show that higher calcination temperatures give a higher degree of reduction, but also result in some sintering of the particles. The catalytic epoxidation reaction may be carried out with or without a solvent and with air or molecular oxygen as the stoichiometric oxidant and using t-butyl hydroperoxide as an initiator. The method shows consistently high... (More)
4 We report a highly efficient green process for the epoxidation of various olefins using polyoxometalate-supported gold nanoparticles as catalysts and using oxygen as the terminal oxidant. The nanoparticles were prepared through thermal reduction of Au(III) and were characterised by TEM and XPS. The elemental composition of the catalyst was also determined using ICP. The results show that higher calcination temperatures give a higher degree of reduction, but also result in some sintering of the particles. The catalytic epoxidation reaction may be carried out with or without a solvent and with air or molecular oxygen as the stoichiometric oxidant and using t-butyl hydroperoxide as an initiator. The method shows consistently high conversions and >90% selectivity to epoxide formation for norbornene and cyclooctene oxidation. The catalysts show little deactivation with time and are easily recovered by filtration and can be reused with little or no loss in activity and selectivity. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Green Chemistry
volume
16
issue
3
pages
1586 - 1593
publisher
Royal Society of Chemistry
external identifiers
  • wos:000332039200071
  • scopus:84894618958
ISSN
1463-9270
DOI
10.1039/c3gc42198h
language
English
LU publication?
yes
id
4eaf7b01-9c09-4e8a-8c0a-1efcd23629f3 (old id 4417481)
date added to LUP
2014-04-30 11:05:13
date last changed
2017-09-03 03:34:00
@article{4eaf7b01-9c09-4e8a-8c0a-1efcd23629f3,
  abstract     = {4 We report a highly efficient green process for the epoxidation of various olefins using polyoxometalate-supported gold nanoparticles as catalysts and using oxygen as the terminal oxidant. The nanoparticles were prepared through thermal reduction of Au(III) and were characterised by TEM and XPS. The elemental composition of the catalyst was also determined using ICP. The results show that higher calcination temperatures give a higher degree of reduction, but also result in some sintering of the particles. The catalytic epoxidation reaction may be carried out with or without a solvent and with air or molecular oxygen as the stoichiometric oxidant and using t-butyl hydroperoxide as an initiator. The method shows consistently high conversions and >90% selectivity to epoxide formation for norbornene and cyclooctene oxidation. The catalysts show little deactivation with time and are easily recovered by filtration and can be reused with little or no loss in activity and selectivity.},
  author       = {Tebandeke, Emmanuel and Coman, Cristina and Guillois, Kevin and Canning, Griffin and Ataman, Evren and Knudsen, Jan and Wallenberg, Reine and Ssekaalo, Henry and Schnadt, Joachim and Wendt, Ola},
  issn         = {1463-9270},
  language     = {eng},
  number       = {3},
  pages        = {1586--1593},
  publisher    = {Royal Society of Chemistry},
  series       = {Green Chemistry},
  title        = {Epoxidation of olefins with molecular oxygen as the oxidant using gold catalysts supported on polyoxometalates},
  url          = {http://dx.doi.org/10.1039/c3gc42198h},
  volume       = {16},
  year         = {2014},
}