5-amino-6-pyridazone derivatives, their preparation and...

Details 5-amino-6-pyridazone derivatives, their preparation and... 5-amino-6-pyridazone derivatives, their preparation and...

C - Chemistry, Metallurgy

07

D

260/251, 260/264

C07D 237/22 (2006.01) A01N 43/58 (2006.01) C07D 401/12 (2006.01) C07D 403/12 (2006.01) C07D 405/12 (2006.01) C07D 409/12 (2006.01) C07D 413/12 (2006.01)

Patent

CA 1335505

5-Amino-6-pyridazones of the general formulae Ia and Ib Image Ia Image Ib where R1 is C1-C4-alkyl which may carry up to three halogen atoms, R2 is C1-C4-alkyl or C3-C6-alkenyl, where these groups may carry up to two phenyl radicals, or C3-C6-alkynyl, A is -CO- or -SO2-, B is C1-C6-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, where these groups may carry up to three of the following radicals: halogen, C1-C4-alkoxy, C1-C4-alkylthio and/or phenyl; an isocyclic or heterocyclic C3-C7- cycloalkyl group or an isocyclic or heterocyclic C3-C7-cycloalkenyl group, where these groups may be fused with one or two cycloalkyl groups of this type or with one or two benzene nuclei, where the total number of ring members is from 3 to 16 and these cyclic radicals may carry up to three of the following groups: halogen, C1-C4-alkyl, C2-C6-alkenyl, C2-C6-alkynyl and/or phenyl; a mononuclear to trinuclear aromatic or heteroaromatic radical which may carry up to three of the following groups: C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, C1-C4-alkylsulfinyl, C1-C4-alkylsulfonyl, cyano, nitro, carbo-C1-C4-alkoxy, N,N-di-C1-C4-alkylcarbamido and/or halogen. These compounds are used as herbicidal active ingredients.

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