| 1 | Author | Herbert Meier, Hansjörg Gugel, Margret Barth, Udo Plücken | Requires cookie* |
| Title | Konformationsuntersuchungen an benzokondensierten Achtringen Conformation Analysis of Benzo-Condensed Eight-Membered Rings  | ||
| Abstract | The annellation of 1-4 benzene rings to carbocyclic 8-rings increases stepwise the activation barrier for the ring inversion. A drastic consequence of the steric hindrance in the transition state is the rigidity of 9,10-dihydro-tribenzo[a,c,e]cyclooctenes at room temperature. With the aid of a complete analysis of the iH NMR spectra a decision is possible between fixed C2-conformations (e.g. 8) and Cs-conformations (e.g. 9). | ||
| Reference | Z. Naturforsch. 35b, 477—481 (1980); eingegangen am 13. Dezember 1979 | ||
| Published | 1980 | ||
| Keywords | Ring Inversion, NMR Spectra, Lanthanoid Shift Measurements | ||
| Similar Items | Find | ||
