Kinetics of the Homogeneous and Heterogeneous Coupling of Furfural with Biomass‐Derived Alcohols

Kinetics of the Homogeneous and Heterogeneous Coupling of Furfural with Biomass‐Derived Alcohols The tandem dehydrogenation and aldol condensation of butanol with furfural was investigated over homogeneous and heterogeneous catalysts using kinetics and isotope effects. In the homogeneous system, Ni(dppe)Cl2 catalyzes the transfer dehydrogenation of butanol to the furfural, whereas the aldol condensation of butyraldehyde and furfural takes place over the basic K2CO3 cocatalyst. In the heterogeneous system, a transition‐metal‐free mixed Mg–Al oxide, both the transfer hydrogenation and aldol condensation take place over the basic sites of the catalyst, and the rate‐determining step is the alpha‐hydride transfer from the butanol to the furfural. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ChemCatChem (Electronic) Wiley

Kinetics of the Homogeneous and Heterogeneous Coupling of Furfural with Biomass‐Derived Alcohols

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1867-3880
eISSN
1867-3899
D.O.I.
10.1002/cctc.201701866
Publisher site
See Article on Publisher Site

Abstract

The tandem dehydrogenation and aldol condensation of butanol with furfural was investigated over homogeneous and heterogeneous catalysts using kinetics and isotope effects. In the homogeneous system, Ni(dppe)Cl2 catalyzes the transfer dehydrogenation of butanol to the furfural, whereas the aldol condensation of butyraldehyde and furfural takes place over the basic K2CO3 cocatalyst. In the heterogeneous system, a transition‐metal‐free mixed Mg–Al oxide, both the transfer hydrogenation and aldol condensation take place over the basic sites of the catalyst, and the rate‐determining step is the alpha‐hydride transfer from the butanol to the furfural.

Journal

ChemCatChem (Electronic)Wiley

Published: Jan 7, 2018

Keywords: ; ; ; ;

References

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