Abstract
AbstractBioassay data are reported for seven triorganotin compounds (R3SnX), in which R=phenyl, cyclohexyl, or 2‐methyl‐2‐phenylpropyl, and × is the anionic form of the organic chelating ligands quinolin‐8‐ol, quinoline‐8‐thiol, 1,3‐diphenylpropane‐1,3‐dione, or 3‐hydroxyflavone, when tested against an organophosphorus‐resistant species of the two‐spotted spider mite (Tetranychus urticae), the potato blight fungus (Phytophthora infestans), and the vine downy mildew fungus (Plasmopara viticola). The relationship between the activity and the co‐ordination number of the tin atom is discussed, and it is shown that the anionic group × can, in some instances significantly affect the biological properties.
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