S-cyanoalkyl phosphorodithioates

Synthesis, Insecticidal Activity, and Field Performance of Some S-Cyanoalkyl Phosphorodithioates... 

This report summarizes the synthesis, insecticidal activity, and field performances of some S cyanoalkyl phosphorodithioates related to terbufos. Replacement of one of the methyl groups of terbufos with a nitrile yielded an insecticide more active than terbufos but lacking its soil persistence. However, addition of a methyl group to the carbon between the two sulfur atoms of this S-cyanoalkyl phosphorodithioate produced a compound that was almost as active as Terbufos as an insecticide and gave economic control of corn rootworms at 1 lb/A. 

Table 5. Estimated Soil Persistence of Three S -Cyanoalkyl Phosphorodithioates...

Table 6. Field Performance of Two S Cyanoalkyl Phosphorodithioates and Terbufos...

Table 2. Insecticide Evaluation of some Phosphorodithioates S -cyanoalkyl ...

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