4-(3-Aminobenzoyl)-5-cyclopropylisoxazole compounds (I) or their salts are new. 4-(3-Aminobenzoyl)-5-cyclopropylisoxazole compounds of formula (I) or their salts are new. A : NR 1>；R 2>；or N=CR 3>；NR 4>；R 5>；； R 1>；, R 2>；(1-6C)-alkyl, (1-4C)-alkoxy-(1-6C)-alkyl, (2-6C)-alkenyl, (2-6C)-alkynyl, (3-6C)-cycloalkyl or (3-6C)-cycloalkyl-(1-6C)-alkyl (all m times substituted by halo) or H； R 3>；-R 4>；(1-6C)-alkyl or (3-6C)-cycloalkyl (both m times substituted by halo) or H； X, Y 1>；H, (1-6C)-alkyl, (1-4C)-alkoxy, (1-4C)-alkoxy-(1-6C)-alkyl, (2-6C)-alkenyl, (2-6C)-alkynyl, (3-6C)-cycloalkyl, (3-6C)-cycloalkyl-(1-6C)-alkyl, (1-6C)-haloalkyl, halo, (1-4C)-alkyl-S(O) n, (3-6C)-cycloalkyl-S(O) n, nitro or CN； Z : H or CO 2R 6>；； R 6>；(1-6C)-alkyl or (3-6C)-cycloalkyl； m : 0-5； and n : 0-2. Independent claims are included for a 1-cyclopropyl-3-phenyl-propane-1,3-dione compound of formula (II) or (IIa). [Image] [Image] ACTIVITY : Herbicide. MECHANISM OF ACTION : None given.
