Patent ID: 8268753

Claim:
A compound of the formula I wherein R 1 represents C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 2 -C 4 alkoxyalkyl, C 2 -C 4 alkythioalkyl, C 2 -C 4 alkenyl, C 2 -C 4 haloalkenyl, C 2 -C 4 alkoxyalkenyl, C 2 -C 4 thioalkylalkenyl, C 2 -C 4 alkynyl or C 2 -C 4 haloalkynyl, formyl, C 2 -C 4 alkylcarbonyl, C 2 -C 4 haloalkylcarbonyl; R 2 represents cyclopropyl, C 1 -C 6 haloalkyl, C 2 -C 6 alkenyl, C 2 -C 6 haloalkenyl or wherein W 1 represents H or halogen; X 1 represents H, halogen, nitro, cyano, formyl, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkoxyalkyl, C 2 -C 6 alkylcarbonyl, C 1 -C 6 alkythio, C 1 -C 6 alkylsulfinyl, C 1 -C 6 alkylsulfonyl, C 2 -C 4 alkenyloxy, C 2 -C 4 alkynloxy, C 2 -C 4 alkenylthio, C 2 -C 4 alkynylthio, C 1 -C 6 haloalkyl, C 2 -C 6 haloalkenyl, C 2 -C 6 haloalkynyl, C 1 -C 6 haloalkoxy, C 2 -C 4 haloalkoxyalkyl, C 2 -C 6 haloalkyl-carbonyl, C 1 -C 6 haloalkylthio, C 1 -C 6 haloalkylsulfinyl, C 1 -C 6 halo-alkylsulfonyl, C 3 -C 6 trialkylsilyl, C 2 -C 4 haloalkenyloxy, C 2 -C 4 haloalkynyloxy, C 2 -C 4 haloalkenylthio, C 2 -C 4 haloalkynylthio, —C(O)OR 7 , —C(O)NR 6 R 7 , —CR 6 NOR 7 , —NR 6 R 7 , —NR 6 OR 7 , —NR 6 SO 2 R 7 , —NR 6 C(O)R 7 , —NR 6 C(O)OR 7 , —NR 6 C(O)NR 6 R 7 or —NCR 6 NR 6 R 7 ; Y 1 represents H, halogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkoxy, C 1 -C 6 haloalkoxy, C 2 -C 6 alkenyl or C 2 -C 6 haloalkenyl, or, when X 1 and Y 1 are taken together, represents —O(CH 2 ) n CH 2 —, or —O(CH 2 ) n O—wherein n =1 or 2; and Z 1 represents H or halogen; R 3 and R 4 independently represent H, C 1 -C 6 alkyl, C 3 -C 6 alkenyl, C 3 -C 6 alkynyl, hydroxy, C 1 -C 6 alkoxy, amino, C 1 -C 6 acyl, C 1 -C 6 carboalkoxy, C 1 -C 6 alkylcarbamyl, C 1 -C 6 alkylsulfonyl, C 1 -C 6 trialkylsilyl or C 1 -C 6 dialkyl phosphonyl or R 3 and R 4 taken together with N represent a 5-or 6-membered saturated ring; and R 6 represents H, C 1 -C 4 alkyl or C 1 -C 4 haloalkyl; and R 7 represents C 1 -C 4 alkyl or C 1 -C 4 haloalkyl; and agriculturally acceptable derivatives of the carboxylic acid group.