Acceptorless Dehydrogenation of Methanol to Carbon Monoxide and Hydrogen using Molecular Catalysts
Angewandte Chemie, vol. 133, pp. 26704–26709
Abstract
Abstract The acceptorless dehydrogenation of methanol to carbon monoxide and hydrogen was investigated using homogeneous molecular complexes. Complexes of ruthenium and manganese comprising the MACHO ligand framework showed promising activities for this reaction. The molecular ruthenium complex [RuH(CO)(BH4)(HN(C2H4PPh2)2)] (Ru‐MACHO‐BH) achieved up to 3150 turnovers for carbon monoxide and 9230 turnovers for hydrogen formation at 150 °C reaching pressures up to 12 bar when the decomposition was carried out in a closed vessel. Control experiments affirmed that the metal complex mediates the initial fast dehydrogenation of methanol to formaldehyde and methyl formate followed by subsequent slow decarbonylation. Depending on the catalyst and reaction conditions, the CO/H2 ratio in the gas mixture thus varies over a broad range from almost pure hydrogen to the stoichiometric limit of 1:2.
Authors 4
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Max Planck Institute for Chemical Energy Conversion
Affiliation as printed
Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim a.d. Ruhr Germany
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Max Planck Institute for Chemical Energy Conversion
Affiliation as printed
Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim a.d. Ruhr Germany
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Ruhr University Bochum · Max Planck Institute for Chemical Energy Conversion
Affiliation as printed
Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim a.d. Ruhr Germany
Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
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RWTH Aachen University · Max Planck Institute for Chemical Energy Conversion
Affiliation as printed
Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim a.d. Ruhr Germany
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