ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
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.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270081006
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