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| Titel in Übersetzung | Inhibierung der [2+2+2]-Cyclisierung durch Chelatbildung: Alkin- und Vinylidenkomplexe mit Cyclopentadienylcobalt(I) |
|---|---|
| Originalsprache | Englisch |
| Seiten (von - bis) | 1052-1054 |
| Seitenumfang | 3 |
| Fachzeitschrift | Angewandte Chemie International Edition in English |
| Jahrgang | 31 |
| Ausgabenummer | 8 |
| Publikationsstatus | Veröffentlicht - Aug. 1992 |
| Extern publiziert | Ja |
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.)
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Katalyse
- Chemie (insg.)
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in: Angewandte Chemie International Edition in English, Jahrgang 31, Nr. 8, 08.1992, S. 1052-1054.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Inhibition of the [2 + 2 + 2] Cyclization by the Formation of Chelates
T2 - Alkyne and Vinylidene Complexes with Cyclopentadienylcobalt(I)
AU - Butenschön, Holger
AU - Kettenbach, Ralf T.
AU - Krüger, Carl
PY - 1992/8
Y1 - 1992/8
N2 - 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.)
AB - 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.)
UR - http://www.scopus.com/inward/record.url?scp=33748245036&partnerID=8YFLogxK
U2 - 10.1002/anie.199210661
DO - 10.1002/anie.199210661
M3 - Article
AN - SCOPUS:33748245036
VL - 31
SP - 1052
EP - 1054
JO - Angewandte Chemie International Edition in English
JF - Angewandte Chemie International Edition in English
SN - 0570-0833
IS - 8
ER -