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Synthesis
DOI: 10.1055/a-2777-9562
Paper

Reduction of Nitroarenes to Anilines with an Air-Stable Bismuth Catalyst

Authors

  • Xiangrong Liu

    1   Department of Sustainable Catalysis, Max-Planck-Institut fur Kohlenforschung, Mülheim, Germany (Ringgold ID: RIN28314)

  • Hye Won Moon 

    1   Department of Sustainable Catalysis, Max-Planck-Institut fur Kohlenforschung, Mülheim, Germany (Ringgold ID: RIN28314)

  • Josep Cornella 

    1   Department of Sustainable Catalysis, Max-Planck-Institut fur Kohlenforschung, Mülheim, Germany (Ringgold ID: RIN28314)

Supported by: Max-Planck-Gesellschaft
Supported by: Deutsche Forschungsgemeinschaft EXC 2033–390677874 –RESOLV
Supported by: Max-Planck-Institut für Kohlenforschung
Supported by: Chinese Government Scholarship
Supported by: Verband der Chemischen Industrie
Supported by: Novartis Early Career Award Foundation
Further Information
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Herein we provide a bismuth-catalyzed reduction of nitroarenes to anilines using a simple and air-stable bismuth pre-catalyst. The reaction uses up to 5 mol% of Bi catalyst and PhSiH3 as the terminal reductant under mild conditions. The Bi pre-catalyst is an air-stable Bi(III), which is converted in the catalytically active species in situ by the PhSiH3. The mild reducing conditions permit the presence of aromatic halides. In analogy to the previous processes in bismuth catalysis, the reaction is speculated to proceed through a low-valent Bi(I)/Bi(III) redox cycle.



Publication History

Received: 03 November 2025

Accepted after revision: 22 December 2025

Accepted Manuscript online:
20 February 2026

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