Liquid-phase dehydrogenation of methanol with homogeneous ruthenium complex catalysts.

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概要

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• Catalytic dehydrogenation of methanol proceeded with homogeneous ruthenium(II) complexes, yielding formaldehyde and dihydrogen as primary products under refluxing conditions of the solution. The effects of additives on the initial reaction rate were examined for lithium chloride, lithium acetate, acetic acid and ethyldiphenylphosphine. A catalyst complex, [Ru(OAc)Cl(PEtPh<SUB>2</SUB>)<SUB>3</SUB>], was deactivated gradually by the displacement of the bidentate OAc ligand with H and CO ligands during the reaction. These cis-disposed sites would be used for splitting the C–H bonds. A catalytic reaction cycle is proposed, in which such processes are included as solvolysis of the catalyst complex, β-H elimination from the OCH<SUB>3</SUB> ligand and attack of acetic acid on the hydride intermediate to generate dihydrogen.

• 公益社団法人 日本化学会の論文

著者

• Shinoda Sumio

  Institute Of Industrial Science The University Of Tokyo

• Saito Yasukazu

  Institute of Industrial Science, The University of Tokyo

• Itagaki Hiroaki

  Institute of Industrial Science, University of Tokyo

関連論文

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• XRD characteristics of Na-ZSM-5 synthesized from an organic-free system.
• Liquid-phase dehydrogenation of 2-propanol by suspended nickel fine-particle catalyst.

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