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Efficient cleavage of aryl ether C-O linkages by Rh-Ni and Ru-Ni nanoscale catalysts operating in water.
Journal article

Efficient cleavage of aryl ether C-O linkages by Rh-Ni and Ru-Ni nanoscale catalysts operating in water.

  • Bulut S Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland . Email: paul.dyson@epfl.ch.
  • Siankevich S Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland . Email: paul.dyson@epfl.ch.
  • van Muyden AP Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland . Email: paul.dyson@epfl.ch.
  • Alexander DTL Interdisciplinary Centre for Electron Microscopy (CIME) , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland.
  • Savoglidis G Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland . Email: paul.dyson@epfl.ch.
  • Zhang J Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117576 , Singapore.
  • Hatzimanikatis V Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland . Email: paul.dyson@epfl.ch.
  • Yan N Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117576 , Singapore.
  • Dyson PJ Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 , Lausanne , Switzerland . Email: paul.dyson@epfl.ch.
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  • 2018-08-01
Published in:
  • Chemical science. - 2018
General Chemistry
English Bimetallic Ru-Ni and Rh-Ni nanocatalysts coated with a phase transfer agent efficiently cleave aryl ether C-O linkages in water in the presence of hydrogen. For dimeric substrates with weaker C-O linkages, i.e. α-O-4 and β-O-4 bonds, low loadings of the precious metal (Rh or Ru) in the nanocatalysts quantitatively afford monomers, whereas for the stronger 4-O-5 linkage higher amounts of the precious metal are required to achieve complete conversion. Under the optimized, relatively mild operating conditions, the C-O bonds in a range of substituted ether compounds are efficiently cleaved, and mechanistic insights into the reaction pathways are provided. This work paves the way to sustainable approaches for the hydrogenolysis of C-O bonds.
Language
  • English
Open access status
gold
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Persistent URL
https://sonar.ch/global/documents/105137
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