Abstract
AbstractProton NMR data for a number of 1‐X‐4‐Y‐3,5‐dimethylbenzenes and 1‐X‐2‐Y‐4‐Z‐3,5‐dimethylbenzenes 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 substituents. This conclusion was strongly supported by the proton chemical shifts calculated using additivity rules.
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