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Conformational analysis by LIS. II. 2-and 3-alkyl substituted 1-indanones

Konformationsanalyse mittels Lanthaniden-induzierter Verschiebungen. II1 2-und 3-alkylsubstituierte 1-Indanone

  • Organische Chemie und Biochemie
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Abstract

The preferred conformations of the alkyl groups relative to the cyclopentenone ring of 2-ethyl-, 2-benzyl-, 2-isopropyl-, and 3-isopropyl-1-indanone were determined by means of the lanthanide-induced-shift technique (LIS). Two different models were used in the calculation of LIS. Coupling data-where available-were compatible with the conformations derived from LIS data.

Zusammenfassung

Es wurden die bevorzugten Konformationen der 2-Ethyl-, 2-Benzyl-, 2-Isopropyl-und 3-Isopropylreste relativ zum Cyclopentenon-Ring von 2-, bzw. 3-Alkyl-1-indanonen mit Hilfe der LIS-Methode bestimmt; es wurden dabei zwei verschiedene Rechenmodelle herangezogen. In den Fällen, wo aus den Kopplungskonstanten auf die Konformation geschlossen werden konnte, waren diese Werte mit den Resultaten aus den Lanthaniden-induzierten Verschiebungen im Einklang.

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O. Hofer, Mh. Chem.109, 405 (1978).

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Hofer, O. Conformational analysis by LIS. II. 2-and 3-alkyl substituted 1-indanones. Monatshefte für Chemie 110, 979–985 (1979). https://doi.org/10.1007/BF00906693

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  • DOI: https://doi.org/10.1007/BF00906693

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