Herbicidal 4-heteroaroylisoxazole derivatives

Details Herbicidal 4-heteroaroylisoxazole derivatives Herbicidal 4-heteroaroylisoxazole derivatives

C - Chemistry, Metallurgy

07

D

C07D 413/06 (2006.01) A01N 43/72 (2006.01) A01N 43/80 (2006.01) C07D 417/06 (2006.01)

Patent

CA 2105822

4-heteroaroylisoxazole derivatives of formula I: (see formula I) wherein: Ar represents an optionally substituted group Het, wherein Het represents a first heterocyclic ring containing from one to four heteroatoms in the ring selected from oxygen, nitrogen and sulphur, which is optionally fused with a benzene, or carbocyclic or second heterocyclic ring (which is optionally saturated or partially saturated) to form a bicyclic system, wherein the first heterocyclic ring of the group Het is attached to the carbonyl group in the 4-position of the isoxazole ring; R represents hydrogen or -CO2R3; R1 represents alkyl or haloalkyl or a cycloalkyl group optionally substituted by one or more groups R4; R3 and R4 independently represent alkyl or haloalkyl; agriculturally acceptable salts thereof and their use in weed control is described.

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