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Proton magnetic resonance studies of substituted 3,5-dimethylbenzenes: Influence of substituents on the methyl proton chemical shifts

✍ Scribed by Fadhil S. Kamounah; Ikbal. S. Al-Sheibani; Nazar L. Shibaldain; Salman R. Salman

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
294 KB
Volume
23
Category
Article
ISSN
0749-1581

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✦ Synopsis

Proton NMR data for a number of l-.IZ-4-Y-3,5-dimethylbenzenc?s and l-X-2-Y-4-Z-3,5-dimethylbenzenc?s are presented. The proton chemical shifts of the methyl groups at positions 3 and 5 are mainly affected by the ring current effect of the snbstituents. Thii conclusion was strongly supported by the proton chemical shifts calculated using additivity rules.

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