Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes

Luke Shaw; D. M. Upulani K. Somisara; Rebecca C. How; Nicholas J. Westwood; Pieter C. A. Bruijnincx; Bert M. Weckhuysen; Paul C. J. Kamer

doi:10.1039/C6CY00518G

Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes

Luke Shaw, D. M. Upulani K. Somisara, Rebecca C. How, Nicholas J. Westwood, Pieter C. A. Bruijnincx, Bert M. Weckhuysen, Paul C. J. Kamer

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Abstract

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.

Original language	English
Pages (from-to)	619-626
Number of pages	8
Journal	Catalysis Science & Technology
Volume	7
Issue number	3
Early online date	13 Jan 2017
DOIs	https://doi.org/10.1039/C6CY00518G
Publication status	Published - 7 Feb 2017

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10.1039/C6CY00518G

Bite-angle paper Jan 17
© 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
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title = "Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes",

abstract = "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. ",

author = "Luke Shaw and Somisara, {D. M. Upulani K.} and How, {Rebecca C.} and Westwood, {Nicholas J.} and Bruijnincx, {Pieter C. A.} and Weckhuysen, {Bert M.} and Kamer, {Paul C. J.}",

note = "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 {\textquoteleft}SuBiCat{\textquoteright} PITN-GA-2013-607044) for financial support. NMSF-Swansea and Mr. Stephen Boyer are kindly acknowledged for mass spectrometry and elemental analysis, respectively.",

year = "2017",

month = feb,

day = "7",

doi = "10.1039/C6CY00518G",

language = "English",

volume = "7",

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journal = "Catalysis Science & Technology",

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AU - Shaw, Luke

AU - Somisara, D. M. Upulani K.

AU - How, Rebecca C.

AU - Westwood, Nicholas J.

AU - Bruijnincx, Pieter C. A.

AU - Weckhuysen, Bert M.

AU - Kamer, Paul C. J.

N1 - 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.

PY - 2017/2/7

Y1 - 2017/2/7

N2 - 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.

AB - 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.

UR - http://www.rsc.org/suppdata/c6/cy/c6cy00518g/c6cy00518g1.pdf

U2 - 10.1039/C6CY00518G

DO - 10.1039/C6CY00518G

M3 - Article

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JO - Catalysis Science & Technology

JF - Catalysis Science & Technology

IS - 3

ER -

Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes

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Clean catalysis for sustainable develop: Clean catalysis for sustainable development

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Electronic and bite angle effects in catalytic C-O bond cleavage of a lignin model compound using ruthenium xantphos complexes

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