## Abstract Proton noise decoupled ^13^C NMR spectra of lithium 1,1,3,3‐bis (2,2′‐biphenylylene)propenide and lithium 1,1,3,3‐tetraphenylpropenide have been studied, and complete assignments have been made based on several methods, e.g. ^13^C^13^C coupling constants of selectively labelled compoun
Dynamic 13C NMR study of the cyclohexane ring in spirocyclohexanes
✍ Scribed by Pierre Iratçabal; Marie-Florence Grenier-Loustalot; Albert Lichanot; Franck Metras
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 306 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A dynamic study of spirocyclohexanes was carried out using low‐temperature ^13^C nuclear magnetic resonance spectroscopy. The variations of the energy barrier to inversion of the cyclohexane ring are interpreted in terms of the electronegativity of the heteroatoms of the spiro substituent.
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