Journal of organic chemistry, 2008-08, Vol.73 (16), p.6137-6141
2008
Details
- Autor(en) / Beteiligte
- Titel
- Co-Complexes Derived from Alkene Insertion to Alkyne-Dicobaltpentacarbonyl Complexes: Insight into the Regioselectivity of Pauson−Khand Reactions of Cyclopropenes
- Ist Teil von
- Journal of organic chemistry, 2008-08, Vol.73 (16), p.6137-6141
- Ort / Verlag
- Washington, DC: American Chemical Society
- Erscheinungsjahr
- 2008
- Link zum Volltext
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- Described are the X-ray crystallographic and spectral properties of Co-complexes that were isolated from two Pauson−Khand reactions of chiral cyclopropenes. These are the first examples of isolated Co-complexes derived from the putative alkene-insertion intermediates of Pauson−Khand reactions. The binuclear Co-complexes are coordinated to μ-bonded, five-carbon “flyover” carbene ligands. It is proposed that the complexes result from cyclopropane fragmentation subsequent to alkene insertion. The observation of these metal complexes provides a rationale for the origin of regioselectivity in Pauson−Khand reactions of cyclopropenes.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0022-3263eISSN: 1520-6904DOI: 10.1021/jo800776zTitel-ID: cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2667904
- Format
- –
- Schlagworte
- Alicyclic compounds, Alicyclic compounds, terpenoids, prostaglandins, steroids, Alkenes - chemistry, Alkynes - chemistry, Chemistry, Cobalt - chemistry, Coordination compounds, Crystallography, X-Ray, Cyclopentanes - chemistry, Cyclopropanes - chemistry, Exact sciences and technology, Inorganic chemistry and origins of life, Kinetics and mechanisms, Magnetic Resonance Spectroscopy, Models, Molecular, Organic chemistry, Organomercury Compounds - chemistry, Preparations and properties, Reactivity and mechanisms, Spectrophotometry, Infrared