Cobalt oxide supported gold nanoparticles as a stable and readily-prepared precursor for the in situ generation of cobalt carbonyl like species

A treatment of cobalt oxide supported gold nanoparticles (Au/Co3O4) under syngas atmosphere effectively generated a cobalt carbonyl-like active species in the reaction vessel. The preparation of Au/Co3O4 was quite simple and the in situ generated cobalt species could be used as a stable and easy han...

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Bibliographic Details
Published in:Tetrahedron letters 2011-12, Vol.52 (51), p.6869-6872
Main Authors: Hamasaki, Akiyuki, Muto, Akiko, Haraguchi, Shingo, Liu, Xiaohao, Sakakibara, Takanori, Yokoyama, Takushi, Tokunaga, Makoto
Format: Article
Language:English
Subjects:
Alkoxycarbonylation
Alternative catalyst
Carbonyls
Catalysis
Catalysts: preparations and properties
Chemistry
Cobalt
Cobalt carbonyls
Cobalt oxides
Exact sciences and technology
General and physical chemistry
Gold
Heterocyclic compounds
Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives
Nanoparticles
Organic chemistry
Pauson–Khand reaction
Precursors
Preparations and properties
Purification
Tetrahedrons
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:A treatment of cobalt oxide supported gold nanoparticles (Au/Co3O4) under syngas atmosphere effectively generated a cobalt carbonyl-like active species in the reaction vessel. The preparation of Au/Co3O4 was quite simple and the in situ generated cobalt species could be used as a stable and easy handling alternative for dicobalt octacarbonyl without bothersome purification prior to use. The reactions, which are sensitive to the purity of the dicobalt octacarbonyl, such as the alkoxycarbonylation of epoxides and the Pauson–Khand reaction, smoothly progressed with Au/Co3O4.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2011.09.067