Microwave-heated γ-Alumina Applied to the Reduction of Aldehydes to Alcohols
Artikel i vetenskaplig tidskrift, 2020
The development of cheap and robust heterogeneous catalysts for the Meerwein-Ponndorf-Verley (MPV) reduction is desirable due to the difficulties in product isolation and catalyst recovery associated with the traditional use of homogeneous catalysts for MPV. Herein, we show that microwave heated γ-Al2O3 can be used for the reduction of aldehydes to alcohols. The reaction is efficient and has a broad substrates scope (19 entries). The products can be isolated by simple filtration, and the catalyst can be regenerated. With the use of microwave heating, we can direct the heating to the catalyst rather than to the whole reaction medium. Furthermore, DFT was used to study the reaction mechanism, and we can conclude that a dual-site mechanism is operative where the aldehyde and 2-propoxide are situated on two adjacent Al sites during the reduction. Additionally, volcano plots were used to rationalize the reactivity of Al2O3 in comparison to other metal oxides.
MPV reduction
γ-Al O 2 3
Microwave-assisted catalysis
Författare
Bhausaheb Kashinath Dhokale
Chalmers, Kemi och kemiteknik, Kemi och biokemi
Arturo Susarrey- Arce
Chalmers, Fysik, Kemisk fysik
MESA Institute for Nanotechnology
Anna Pekkari
Chalmers, Kemi och kemiteknik, Tillämpad kemi
August Runemark
Chalmers, Kemi och kemiteknik, Kemi och biokemi
Kasper Moth-Poulsen
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Christoph Langhammer
Chalmers, Fysik, Kemisk fysik
Hanna Härelind
Chalmers, Kemi och kemiteknik
Michael Busch
Aalto-Yliopisto
Matthias Vandichel
University of Limerick
Henrik Sundén
Göteborgs universitet
Chalmers, Kemi och kemiteknik, Kemi och biokemi
ChemCatChem
1867-3880 (ISSN) 1867-3899 (eISSN)
Vol. 12 24 6344-6355Single Particle Catalysis in Nanoreactors (SPCN)
Knut och Alice Wallenbergs Stiftelse (KAW2015.0057), 2016-01-01 -- 2020-12-31.
Styrkeområden
Nanovetenskap och nanoteknik
Ämneskategorier
Kemiska processer
Annan fysik
Bioenergi
DOI
10.1002/cctc.202001284