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Acaricidal, larvicidal and ovicidal tetrazine derivatives and compositions, processes for their preparation and methods of using them.
Acaricidal, larvicidal and ovicidal tetrazine derivatives and compositions, processes for their preparation and methods of using them.
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机译:杀螨,杀螨和杀卵的四嗪衍生物和组合物,其制备方法和使用方法。
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摘要
The substituted tetrazines of the formula: IMAGE (I) and of the formula: IMAGE (II) wherein: R1, R2 and R4 each represent hydrogen, phenyl, alkyl of 1 to 6 carbon atoms, or alkenyl or alkynyl of 3 to 6 carbon atoms, each of which may be unsubstituted or substituted by one or more halogen atoms, hydroxy groups, cyano groups, carboxy groups, alkoxycarbonyl groups of 2 to 5 carbon atoms, or alkoxy groups of 1 to 4 carbon atoms or R1 and R2 together represent a single bond R3 represents alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl or phenylalkyl of 7 to 10 carbon atoms, each of which may be unsubstituted or substituted by one or more halogen atoms, alkyl or alkoxy groups of 1 to 6 carbon atoms, nitro groups, cyano groups, mercapto groups, or alkylmercapto groups of 1 to 4 carbon atoms and R6 represents a phenyl group substituted in at least the 2-position by fluorine, chlorine, bromine or iodine are effective to combat acarids and their eggs.
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