| abstract |
The invention relates to compounds of formula (I) or their salts; R1= (substituted) aryl, (substituted) (C3-C9)cycloalkyl, (substituted) heterocyclyl, (substituted) (C1-C6) alkyl, (substituted) (C2-C6) alkenyl or (substituted) (C2-C6) alkinyl, R2= a (substituted) carbocycle with 4 to 6 ri ng atoms, a (substituted) heterocycle with 3 to 6 ring atoms and 1 to 4 heteroatoms N, O and S, or formula -A-Z wherein A=straight-chained, optional ly substituted (C1-C4) alkylene, (C2-C5) alkenylene or (C2-C5) alkinylene, Z=(substituted)carbocycle with 3-6 ring atoms, (substituted) heterocycle wit h 3-6 ring atoms and 1-4 heteroatoms N, O and S, R3=H, (substituted) (C1-C6) alkyl, (substituted) aryl or (substituted) (C3-C9) cycloalkyl, or a radical of formula -N(B1-D1)(B2-D2) or -NR1-N(B1-D1)(B2-D2) or -NR1-N(B1-D2), wherein B 1, B2, D1 and D2 have the meanings given below and R'=H means (C1-C8) alkyl or [(C1-C4) alkyl]-carbonyl; R4=-B3-D3, B3 and D3 being defined as follows: B1, B2 and B3= a direct bond or -C(=Z*)-, -C(=Z*)-Z**-, -C(=Z*)-NH- or -C(=Z*)-N R*- , whereby Z*, Z**=O, S and R*=(C1-C6) alkyl, aryl-(C1-C6) alkyl, (C3-C9) cycloalkyl or (C3-C9) cycloalkyl-(C1-C6) alkyl, optionally substituted, respectively, D1, D2, D3=H, (C1-C6) alkyl, aryl, aryl-(C1-C6) alkyl, (C3-C9) cycloalkyl or (C3-C9) cycloalkyl-(C1-C6) alkyl, optionally substituted, respectively and (X)n are substituents, as defined in more detail in claim n o. 1 and n=0-5. The inventive compounds are suitable for use as herbicides and plant growth regulators. |