K. Bergesen, M. Cook, Teh Kim Hock
Oct 1, 1976
Citations
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Influential Citations
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Citations
Journal
Magnetic Resonance in Chemistry
Abstract
The 100 MHz spectra of 2-methyl-, 4-methyl-, 4,5,8-trimethyl- and 4,5,7-trimethyl-1-tetralones have been analysed as 8-spin systems using iterative computation. The monomethyl derivatives exist in inverting half-chair conformations, the 2-methyl group favouring the equatorial site and the 4-methyl group showing equal preference for both axial and equatorial environments. The 5-methyl substituent of the trimethyl derivatives constrains the 4-methyl group to the axial site of rings which adopt non-half-chair conformations. The n.m.r. spectrum of 3-methyl-1-tetralone is also discussed.