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Thioglycerol‐Stabilized Rhodium Nanoparticles in Biphasic Medium as Catalysts in Multistep Reactions
Author(s) -
SerranoMaldonado Alejandro,
Reina Antonio,
PortalesMartínez Benjamín,
GuerreroRíos Itzel
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202000451
Subject(s) - chemistry , rhodium , reductive amination , nitrobenzene , catalysis , nitro , amination , nanoparticle , selectivity , x ray photoelectron spectroscopy , decomposition , polymer chemistry , combinatorial chemistry , organic chemistry , nuclear chemistry , chemical engineering , alkyl , engineering
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 of N ‐substituted anilines from nitrobenzene. In addition, thiolate‐capped RhNPs could be recovered and reused up to 5 runs without loss of activity nor selectivity.