Inhibition of the [2 + 2 + 2] Cyclization by the Formation of Chelates
Alkyne and Vinylidene Complexes with Cyclopentadienylcobalt(I)
- verfasst von
- Holger Butenschön, Ralf T. Kettenbach, Carl Krüger
- Abstract
The trimerization of alkynes to arenes usually observed in the reaction of cyclopentadienyl‐cobalt(I) complexes with alkynes could be prevented by chelation of the metal center with a “phosphane arm” on the cyclopentadienyl ligand. Instead alkyne complexes were obtained in very good yields. The reaction with ethyne leads to the vinylidene complex 1 (88 % yield), a possible precursor to the carbene–cobalt complex. (Figure Presented.)
- Externe Organisation(en)
-
Max-Planck-Institut für Kohlenforschung
- Typ
- Artikel
- Journal
- Angewandte Chemie International Edition in English
- Band
- 31
- Seiten
- 1052-1054
- Anzahl der Seiten
- 3
- ISSN
- 0570-0833
- Publikationsdatum
- 08.1992
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Katalyse, Allgemeine Chemie
- Elektronische Version(en)
-
https://doi.org/10.1002/anie.199210661 (Zugang:
Geschlossen)
https://doi.org/10.1002/ange.19921040816 (Zugang: Geschlossen)
