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Conformational change of [2.2]metaparacyclophane

✍ Scribed by Sadatoshi Akabori; Shigeo Hayashi; Masahito Nawa; Kengo Shiomi

Book ID
104239824
Publisher
Elsevier Science
Year
1969
Tongue
French
Weight
116 KB
Volume
10
Category
Article
ISSN
0040-4039

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✦ Synopsis

The high temperature NMR spectra of[2*2]metacyclophane (I) were recently interpreted as indicating the rigid nature of its lo-membered ring system.1)*2) Activation energy required for interconversion between its two chair forms was estimated to be more than 27 Kcal/mol; 3) this was confirmed by

πŸ“œ SIMILAR VOLUMES

Remote substituent effects on conformati
Remote substituent effects on conformational ring flipping in [2.2]metaparacyclophanes.
✍ Shelby A. Sherrod; Regina L. da Costa πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science 🌐 French βš– 218 KB

Remote substituent effects on sterically hindered conformational changes have been reported for two classes of compounds. In one class, 4-substituted aniline derivatives(2) and 4-substituted 1-naphthylamine derivatives, (3) the