8-quinolylcyclopentadienyl, a ligand with a tailored fit for chelate complexes
8-Lithioquinoline reacts with 2,3,4,5-tetramethylcyclopentenone to give 8-quinolylcyclopentadiene (1/2) after acidic workup and treatment with ammonia. Two of the possible three isomers are formed; the acidic protons on the Cp rings show unusual downfield shifts in the 1H-NMR spectra. Treatment with...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
1996
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| In: |
Chemische Berichte - recueil
Year: 1996, Volume: 129, Issue: 4, Pages: 459-463 |
| ISSN: | 3052-8933 |
| DOI: | 10.1002/cber.19961290415 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/cber.19961290415 Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/cber.19961290415 
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| Author Notes: | Markus Enders, Ralph Rudolph, and Hans Pritzkow |
| Summary: | 8-Lithioquinoline reacts with 2,3,4,5-tetramethylcyclopentenone to give 8-quinolylcyclopentadiene (1/2) after acidic workup and treatment with ammonia. Two of the possible three isomers are formed; the acidic protons on the Cp rings show unusual downfield shifts in the 1H-NMR spectra. Treatment with strong bases led to the intensely coloured anionic 4 which was converted into the trimethylsilyl derivative 5. This is a suitable starting compound for the trihalotitanium and -zirconium compounds 6 and 7. The two complexes were investigated by crystal structure analyses. In both cases the quinolyl nitrogen atom is coordinated to the metal. |
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| Item Description: | First published: April 1996 Gesehen am 18.11.2022 |
| Physical Description: | Online Resource |
| ISSN: | 3052-8933 |
| DOI: | 10.1002/cber.19961290415 |