Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co)

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co). / Beier, Matthias Josef; Kleist, Wolfgang; Wharmby, Michael T.; Kissner, Reinhard; Kimmerle, Bertram; Wright, Paul A.; Grunwaldt, Jan-Dierk; Baiker, Alfons.

In: Chemistry: A European Journal, Vol. 18, No. 3, 2012, p. 887-898.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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APA

Beier, M. J., Kleist, W., Wharmby, M. T., Kissner, R., Kimmerle, B., Wright, P. A., ... Baiker, A. (2012). Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co). Chemistry: A European Journal, 18(3), 887-898. 10.1002/chem.201101223

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Author

Beier, Matthias Josef; Kleist, Wolfgang; Wharmby, Michael T.; Kissner, Reinhard; Kimmerle, Bertram; Wright, Paul A.; Grunwaldt, Jan-Dierk; Baiker, Alfons / Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co).

In: Chemistry: A European Journal, Vol. 18, No. 3, 2012, p. 887-898.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{0106cd5dfcab4932941aaf189d54ce11,
title = "Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co)",
keywords = "Metal–organic frameworks, Heterogeneous catalysis, Cobalt;epoxidation, Frameworks;stilbene oxides",
publisher = "Wiley - V C H Verlag GmbH & Co. KGaA",
author = "Beier, {Matthias Josef} and Wolfgang Kleist and Wharmby, {Michael T.} and Reinhard Kissner and Bertram Kimmerle and Wright, {Paul A.} and Jan-Dierk Grunwaldt and Alfons Baiker",
year = "2012",
doi = "10.1002/chem.201101223",
volume = "18",
number = "3",
pages = "887--898",
journal = "Chemistry: A European Journal",
issn = "0947-6539",

}

RIS

TY - JOUR

T1 - Aerobic Epoxidation of Olefins Catalyzed by the Cobalt‐Based Metal–Organic Framework STA‐12(Co)

A1 - Beier,Matthias Josef

A1 - Kleist,Wolfgang

A1 - Wharmby,Michael T.

A1 - Kissner,Reinhard

A1 - Kimmerle,Bertram

A1 - Wright,Paul A.

A1 - Grunwaldt,Jan-Dierk

A1 - Baiker,Alfons

AU - Beier,Matthias Josef

AU - Kleist,Wolfgang

AU - Wharmby,Michael T.

AU - Kissner,Reinhard

AU - Kimmerle,Bertram

AU - Wright,Paul A.

AU - Grunwaldt,Jan-Dierk

AU - Baiker,Alfons

PB - Wiley - V C H Verlag GmbH & Co. KGaA

PY - 2012

Y1 - 2012

N2 - A 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.

AB - A 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.

KW - Metal–organic frameworks

KW - Heterogeneous catalysis

KW - Cobalt;epoxidation

KW - Frameworks;stilbene oxides

U2 - 10.1002/chem.201101223

DO - 10.1002/chem.201101223

JO - Chemistry: A European Journal

JF - Chemistry: A European Journal

SN - 0947-6539

IS - 3

VL - 18

SP - 887

EP - 898

ER -