A robust iron catalyst for the selective hydrogenation of substituted (iso)quinolones

Basudev Sahoo, Carsten Kreyenschulte, Giovanni Agostini, Henrik Lund, Stephan Bachmann, Michelangelo Scalone, Kathrin Junge, Matthias Beller

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

By applying N-doped carbon modified iron-based catalysts, the controlled hydrogenation of N-heteroarenes, especially (iso)quinolones, is achieved. Crucial for activity is the catalyst preparation by pyrolysis of a carbon-impregnated composite, obtained from iron(ii) acetate and N-aryliminopyridines. As demonstrated by TEM, XRD, XPS and Raman spectroscopy, the synthesized material is composed of Fe(0), Fe3C and FeNx in a N-doped carbon matrix. The decent catalytic activity of this robust and easily recyclable Fe-material allowed for the selective hydrogenation of various (iso)quinoline derivatives, even in the presence of reducible functional groups, such as nitriles, halogens, esters and amides. For a proof-of-concept, this nanostructured catalyst was implemented in the multistep synthesis of natural products and pharmaceutical lead compounds as well as modification of photoluminescent materials. As such this methodology constitutes the first heterogeneous iron-catalyzed hydrogenation of substituted (iso)quinolones with synthetic importance.

Original languageEnglish
Pages (from-to)8134-8141
Number of pages8
JournalChemical Science
Volume9
Issue number42
DOIs
StatePublished - 2018
Externally publishedYes

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