Pyridazinone derivatives, preparation thereof and...

C - Chemistry – Metallurgy – 07 – D

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C07D 237/10 (2006.01) A01N 43/58 (2006.01) A01N 43/60 (2006.01) C07D 237/16 (2006.01) C07D 237/18 (2006.01) C07D 401/12 (2006.01) C07D 403/12 (2006.01)

Patent

CA 1286298

ABSTRACT Novel pyridazinone derivatives of the general formula (I): Image (I) wherein R represents a straight or branched chain alkyl group having 2 to 6 carbon atoms, A represents halogen atom, alkoxy group having 1 to 4 carbon atoms or alkylthio group having 1 to 4 carbon atoms, X represents oxygen atom or sulfur atom, B represents Image or Image Y represents oxygen atom, sulfur atom, Image or - V - Image , V represents oxygen atom or sulfur atom, R1 and R2 represent independently hydrogen atom or alkyl having 1 to 4 carbon atoms, R3 to R6 represent independently hydrogen atom, halogen atom, alkyl having 1 to 4 carbon atoms, cyano group, haloalkyl group having 1 to 4 carbon atom or alkoxycarbonyl group having 1 to 4 carbon atoms, R7 represents alkyl group having 1 to 4 carbon atoms or alkylcarbonyl group having 1 to 4 carbon atoms and Z represents various specific organic groups. A process for preparation of said derivatives is also provided. These derivaives are useful as an active ingredient of insecticidal, acaricidal, nematicidal and/or fungicidal compositions for agricultural and horticultural uses as well as of expellent compositions for ticks parasitic on animals.

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