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The insecticidal activities of esters from a series of alcohols with four different groups (H, ‐CH3, ‐CCH and ‐CN) in the α‐position, and containing different A‐rings or bridging groups, were evaluated. The results show a complex interaction between these two parts of the molecule; the strongest enhancement of activity by some α‐substituents was found in 3‐phenoxybenzyl esters, while other systems responded weakly or even negatively to the substitution.
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Elliott et al. (1983) studied this question.
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