4.5 Article

Thioglycerol-Stabilized Rhodium Nanoparticles in Biphasic Medium as Catalysts in Multistep Reactions

Journal

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume 2020, Issue 26, Pages 2506-2511

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.202000451

Keywords

Biphasic catalysis; Glycerol; Nanoparticles; Reductive amination; Rhodium

Funding

  1. Consejo Nacional de Ciencia y Tecnologia (Mexico) [CB-2016-01-283094]
  2. CONACyT

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Small rhodium nanoparticles (ca. 3.5 nm) were prepared by the decomposition of an organometallic precursor under hydrogen pressure in glycerol using 1-thioglycerol as stabilizer. Full characterization in the solid state [HR-TEM, EDX, XPS] showed a fcc structure for the Rh-0/Rh(I)nanoparticles capped with thiolate ligand. Reduction of different functionalities, including nitro groups and imines, was applied to tandem reductive amination of aldehydes with primary and secondary amines, and to the synthesis ofN-substituted anilines from nitrobenzene. In addition, thiolate-capped RhNPs could be recovered and reused up to 5 runs without loss of activity nor selectivity.

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