Synthesis of Dicarbonyl(η4-tricarbonylcobaltacyclopentadiene)cobalt Complexes from Co2(CO)8. A General Route to Intermediates in Cobalt Carbonyl Mediated Alkyne Trimerization

Autor:	R. John Baxter, and Peter L. Pauson, Mark D. Spicer, Graham R. Knox
Rok vydání:	1998
Předmět:	chemistry.chemical_classification Organic Chemistry Trimethylamine Alkyne chemistry.chemical_element Inorganic Chemistry chemistry.chemical_compound chemistry Cobalt carbonyl Polymer chemistry Molecule Organic chemistry Physical and Theoretical Chemistry Cobalt
Zdroj:	Organometallics. 18:197-205
ISSN:	1520-6041 0276-7333
DOI:	10.1021/om980544y
Popis:	We have shown that cobaltacyclopentadiene complexes, derived from cobalt carbonyl and two alkyne molecules and long believed to be intermediates in cyclotrimerization as well as in the formation of the (three-alkyne-derived) “flyover” complexes, can be isolated in selected cases if the mono(alkyne)−Co2(CO)6 complexes are treated at room temperature with just 1 equiv of alkyne in the presence of trimethylamine N-oxide. The complex (PhCCHCMeCMe)Co2(CO)5 has been characterized by X-ray crystallography.
Databáze:	OpenAIRE
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