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>Insecticidal activity of the pyrethrins and related compounds. Part XI. Relative potencies of isomeric cyano‐substituted 3‐phenoxybenzyl esters
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Insecticidal activity of the pyrethrins and related compounds. Part XI. Relative potencies of isomeric cyano‐substituted 3‐phenoxybenzyl esters
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机译：Insecticidal activity of the pyrethrins and related compounds. Part XI. Relative potencies of isomeric cyano‐substituted 3‐phenoxybenzyl esters
AbstractThe insecticidal activities toMusca domesticaL. andPhaedon cochleariaeFab. of a series of 3‐phenoxybenzyl pyrethroid esters with a cyano substituent at the 2‐, 6‐. (R)‐α‐, or (S)‐α‐position are compared with those of the unsubstituted analogues. Only an (S)‐α‐substituent enhances activity; others diminish or almost eliminate it. (RS)‐α‐mixtures are generally less active than would be predicted from the potencies of th
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