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http://dx.doi.org/10.18419/opus-6985
Autor(en): | Laschat, Sabine Noe, Ralf Riedel, Michael Krüger, Carl |
Titel: | Novel (imino-η6-arene)chromium-complexes and their diastereoselective intramolecular hetero-Diels-Alder reactions |
Erscheinungsdatum: | 1993 |
Dokumentart: | Zeitschriftenartikel |
Erschienen in: | Organometallics 12 (1993), S. 3738-3742. URL http://dx.doi.org./10.1021/om00033a051 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-41671 http://elib.uni-stuttgart.de/handle/11682/7002 http://dx.doi.org/10.18419/opus-6985 |
Zusammenfassung: | Novel (imino-η6-arene)chromium complexes 3 with nonactivated olefins tethered to the 2-azadiene system were prepared and further used in a new diastereoselective intramolecular Lewis-acid-catalyzed hetero-Diels-Alder reaction to give (η6-octahydroacridine)chromium complexes 4. The trans selectivity of the cyclization reaction is mainly controlled by the Cr- (CO)3 fragment and to a minor extent by the catalyst, solvent, and substituents. Complexes 4 also could be obtained by a one-pot reaction starting from aldehyde 1, (o-toluidine)Cr(CO)3 (2), and Lewis acid. The stereochemistry of 4a was established by single-crystal X-ray structure analysis. |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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las6.pdf | 539,73 kB | Adobe PDF | Öffnen/Anzeigen |
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