| 摘要 |
Novel pyridyl-1,2,4-thiadiazoles of the formula <IMAGE> (I) in which R1 represents optionally substituted pyridyl, and R2 represents optionally substituted aryl, and the acid addition salts and metal salt complexes thereof, a process for the preparation of the novel substances and their use as agents for combating pests. Novel 5-arylalkylthio-1,2,4-thiadiazoles of the formula <IMAGE> (II) and 3-pyridyl-1,2,4-thiadiazoline-5-thiones of the formula <IMAGE> (III) in which R1 and R2 have the meanings given above, processes for the preparation of these substances and their use as intermediates.
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