Crossref journal-article
Wiley
Chemistry – A European Journal (311)
Abstract

AbstractA Co‐based metal–organic framework (MOF) was investigated as a catalytic material in the aerobic epoxidation of olefins in DMF and exhibited, based on catalyst mass, a remarkably high catalytic activity compared with the Co‐doped zeolite catalysts that are typically used in this reaction. The structure of STA‐12(Co) is similar to that of STA‐12(Ni), as shown by XRD Rietveld refinement and is stable up to 270 °C. For the epoxidation reaction, significantly different selectivities were obtained depending on the substrate. Although styrene was epoxidized with low selectivity due to oligomerization, (E)‐stilbene was converted with high selectivities between 80 and 90 %. Leaching of Co was low and the reaction was found to proceed mainly heterogeneously. The catalyst was reusable with only a small loss of activity. The catalytic epoxidation of stilbene with the MOF featured an induction period, which was, interestingly, considerably reduced by styrene/stilbene co‐epoxidation. This could be traced back to the formation of benzaldehyde promoting the reaction. Detailed parameter and catalytic studies, including in situ EPR and EXAFS spectroscopy, were performed to obtain an initial insight into the reaction mechanism.

Bibliography

Beier, M. J., Kleist, W., Wharmby, M. T., Kissner, R., Kimmerle, B., Wright, P. A., Grunwaldt, J., & Baiker, A. (2011). Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co). Chemistry – A European Journal, 18(3), 887–898. Portico.

Authors 8
  1. Matthias J. Beier (first)
  2. Wolfgang Kleist (additional)
  3. Michael T. Wharmby (additional)
  4. Reinhard Kissner (additional)
  5. Bertram Kimmerle (additional)
  6. Paul A. Wright (additional)
  7. Jan‐Dierk Grunwaldt (additional)
  8. Alfons Baiker (additional)
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Dates
Type When
Created 13 years, 8 months ago (Dec. 12, 2011, 8:53 a.m.)
Deposited 1 year, 10 months ago (Oct. 16, 2023, 8:35 p.m.)
Indexed 2 weeks, 2 days ago (Aug. 5, 2025, 8:40 a.m.)
Issued 13 years, 8 months ago (Dec. 12, 2011)
Published 13 years, 8 months ago (Dec. 12, 2011)
Published Online 13 years, 8 months ago (Dec. 12, 2011)
Published Print 13 years, 7 months ago (Jan. 16, 2012)
Funders 0

None

@article{Beier_2011, title={Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co)}, volume={18}, ISSN={1521-3765}, url={http://dx.doi.org/10.1002/chem.201101223}, DOI={10.1002/chem.201101223}, number={3}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Beier, Matthias J. and Kleist, Wolfgang and Wharmby, Michael T. and Kissner, Reinhard and Kimmerle, Bertram and Wright, Paul A. and Grunwaldt, Jan‐Dierk and Baiker, Alfons}, year={2011}, month=dec, pages={887–898} }