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Article Dans Une Revue Angewandte Chemie International Edition Année : 2019

Hydrodeoxygenation Using Magnetic Induction: High-Temperature Heterogeneous Catalysis in Solution

Résumé

Magnetic heating has recently been demonstrated as an efficient way to perform catalytic reactions after deposition of the heating agent and the catalyst on a support. Here we show that in solution, and in mild conditions of mean temperature and pressure, it is possible to use magnetic heating to carry out transformations that are otherwise performed heterogeneously at high pressure and/or high temperature. As a proof of concept, we chose the hydrodeoxygenation of acetophenone derivatives and of biomass derived molecules, namely furfural and hydroxymethylfurfural. These reactions are difficult, require using heterogeneous catalysts and high pressures and, to the best of our knowledge, have no precedent in a classical solution. Here, hydrodeoxygenation are fully selective while carried out in mild conditions (3 bar H2, moderate mean temperature of the solvent). The reason for this reactivity is the fast heating of the particles well-above the boiling temperature of the solvent and the local creation of hot spots surrounded by a vapour layer in which high temperature and pressure may be present. The ease of this technology may render practicable many organic transformations
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Dates et versions

hal-02154800 , version 1 (13-06-2019)

Identifiants

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Juan Manuel Asensio, Ana B Miguel, Pier-Francesco Fazzini, Piet W N M van Leeuwen, Bruno Chaudret. Hydrodeoxygenation Using Magnetic Induction: High-Temperature Heterogeneous Catalysis in Solution. Angewandte Chemie International Edition, In press, ⟨10.1002/anie.201904366⟩. ⟨hal-02154800⟩
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