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Fifteen tris(2 dimethyl 2 phenylpropyl)tin carboxylates were synthesized and characterized by IR and 1H NMR. The results showed that these compounds may be four coordinated and there are a linear relationship between Δν CO 2 and the Hammett constants ( σ) of the para substituents of the corresponding substituted benzoates. The bioasay tests show that neophyltin derivatives have a good acaricidal activity and may provide an acaricide for the better activity and economy.
Fifteen tris (2 dimethyl 2 phenylpropyl) tin carboxylates were synthesized and characterized by IR and 1H NMR. The results showed that these compounds may be four coordinated and there are a linear relationship between Δν CO2 and the Hammett constants (σ) of the para substituents of the corresponding substituted benzoates. The bioasay tests show that neophyltin derivatives have a good acaricidal activity and may provide an acaricide for the better activity and economy.