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Anwendung derR-Wert-Methode auf isokonformere Cyclohexane: Kernsubstituierte [2.2]Metacyclophane

Application of the R-value-method to isoconformeric cyclohexanes: Substituted [2.2] metacyclophanes

Gezielte Konformationsänderungen an cyclischen Systemen, 5. Mitt.

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Abstract

The applicability of theLambert-Buys-Criterion (R-Value-Method) is tested for the ten-membered ring of [2.2]metacyclophane. The torsional angles thus obtained from the vicinal proton spin coupling constants are in accordance with X-ray data and recent force field calculations. Consequently, further investigations could be performed regarding the changes of the basic geometry in substituted [2.2]metacyclophanes. Fourteen derivatives with different substituents and substitution patterns were studied and their conformational changes are discussed.

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Correspondence to Harald Lehner.

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Mit 7 Abbildungen

VonH. Lehner auszugsweise vorgetragen am Organisch-Chemischen Institut der Reichsuniversität Gent, Belgien, am 27. Mai 1975.

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Krieger, C., Langer, E. & Lehner, H. Anwendung derR-Wert-Methode auf isokonformere Cyclohexane: Kernsubstituierte [2.2]Metacyclophane. Monatshefte für Chemie 107, 19–33 (1976). https://doi.org/10.1007/BF00909078

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