Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes
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Bite angle and electronic effects on the ruthenium-diphosphine catalysed ether bond cleavage of the lignin β-O-4 model compound 2-phenoxy-1-phenethanol were tested. Enhanced conversion of the substrate was observed with increasing σ-donor capacity of the ligands. Kinetic and thermodynamic data suggest oxidative addition of the dehydrogenated model compound to the diphosphine Ru(0) complex to be rate-limiting.
Shaw , L , Somisara , D M U K , How , R C , Westwood , N J , Bruijnincx , P C A , Weckhuysen , B M & Kamer , P C J 2017 , ' Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes ' Catalysis Science & Technology , vol 7 , no. 3 , pp. 619-626 . DOI: 10.1039/C6CY00518G
Catalysis Science & Technology
© 2017 the Authors. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1039/C6CY00518G
The authors would like to thank the EPSRC (Global Engagement grant EP/K00445X/1 and critical mass grant EP/J018139/1) and the European Union (Marie Curie ITN ‘SuBiCat’ PITN-GA-2013-607044) for financial support. NMSF-Swansea and Mr. Stephen Boyer are kindly acknowledged for mass spectrometry and elemental analysis, respectively.
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