Heterogeneous Iron-Catalyzed Hydrogenation of Nitroarenes under Water-Gas Shift Reaction Conditions

This article is dedicated in honor of Professor Scott Denmark’s 65^th birthday.

Published as part of the Special Section dedicated to Scott E. Denmark on the occasion of his 65^th birthday

Abstract

Reduction of various nitroarenes in the presence of heterogeneous iron oxide-based catalyst Fe₂O₃/NGr@C under water-gas shift reaction (WGSR) conditions has been demonstrated. The catalytic material is prepared in a straightforward manner via deposition/pyrolysis of iron-phenanthroline complex on carbon support. It shows high chemoselectivity towards the reduction of nitroarenes in the presence of other reducible and/or poisoning-capable functional groups. Hydrogenation is achieved using CO/H₂O as a hydrogen source. Furthermore, it is demonstrated that the presence of triethylamine additive has a significant positive effect on the rate of reduction.

Key words

reduction - water-gas shift reaction - WGSR - heterogeneous catalysis - iron - nanoparticles - nitroarenes - hydrogenation

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