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1H NMR spectra and ring shapes of the 4,5,8-trimethyl and 4-methyl derivatives of 1-tetralone

✍ Scribed by Michael J. Cook; Teh Kim Hock

Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
171 KB
Volume
7
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The 220 MHz spectra of the title compounds are reported and values for the internal ring dihedral angle, Ψ, formed between the C‐2C‐1 and C‐3C‐4 bonds, calculated using the R‐value method. The trimethyltetralone exists in a conformer having Ψ = 51° and the 4‐methyl group in the axial position. 4‐Methyl‐1‐tetralone exists in a conformational equilibrium where the mean value of Ψ for the conformers adopted is 56°.

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