Mild and Robust Redox-Neutral Pd/C-Catalyzed Lignol -O-4 Bond Cleavage Through a Low-Energy-Barrier Pathway
2015 (English)In: ChemSusChem, ISSN 1864-5631, E-ISSN 1864-564X, Vol. 8, no 13, 2187-2192 p.Article in journal (Refereed) Published
A Pd/C catalyzed redox neutral CO bond cleavage of 2-aryloxy-1-arylethanols has been developed. The reactions are carried out at 80 degrees C, in air, using a green solvent system to yield the aryl ketones in near quantitative yields. Addition of catalytic amounts of a hydrogen source to the reaction mixture activates the catalyst to proceed through a low energy barrier pathway. Initial studies support a transfer hydrogenolysis reaction mechanism that proceeds through an initial dehydrogenation followed by an enol adsorption to Pd/C and a reductive CO bond cleavage.
Place, publisher, year, edition, pages
2015. Vol. 8, no 13, 2187-2192 p.
heterogeneous catalysis, lignin, palladium, reaction mechanisms, transfer hydrogenolysis
IdentifiersURN: urn:nbn:se:uu:diva-259649DOI: 10.1002/cssc.201500117ISI: 000357619000004PubMedID: 25925736OAI: oai:DiVA.org:uu-259649DiVA: diva2:847584
FunderSwedish Energy Agency