Herbicidal compounds
View Patent ↗The present invention relates to compounds of Formula (I) or an agronomically acceptable salt of said compounds wherein A 1 , A 2 , R 1 , R 2 , R 3 and R 4 are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I), and to their use for controlling weeds, in particular in crops of useful plants.
1. A compound of Formula (I):
or an agronomically acceptable salt thereof,
wherein:
A 1 and A 2 are independently selected from CH and N, wherein A 1 and A 2 are not both CH;
R 1 is selected from the group consisting of C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl- and C 1 -C 6 alkoxy-C 1 -C 3 alkyl-;
R 2 is selected from the group consisting of C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl-, halogen and —O—R 5 ;
R 3 is C 3 -C 8 cycloalkyl- which is optionally substituted by one or more substituents selected from the group consisting of halogen, C 1 -C 6 alkyl-, C 1 -C 6 alkoxy- and C 1 -C 6 haloalkyl-;
R 4 is selected from the group consisting of C 1 -C 6 alkyl-, C 3 -C 6 -cycloalkyl- and C 1 -C 6 haloalkyl-; and
R 5 is selected from the group consisting of C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl-, C 1 -C 6 alkoxy-C 1 -C 3 alkyl-.
2. The compound according to claim 1 , wherein A 1 and A 2 are N.
3. The compound of claim 1 , wherein R 1 is selected from the group consisting of methyl, ethyl and n-propyl.
4. The compound according to claim 1 , wherein R 2 is chloro.
5. The compound according to claim 1 , wherein R 3 is a C 3 -C 8 cycloalkyl- selected from the group consisting of cyclobutyl, cyclopentyl, cyclohexyl, bicyclo[2.1.1]hexane and bicyclo[2.2.1]heptane, wherein said C 3 -C 8 cycloalkyl- is optionally substituted by one or more substituents selected from the group consisting of halogen, C 1 -C 6 alkyl-, C 1 -C 6 alkoxy- and C 1 -C 6 haloalkyl-.
6. The compound according to claim 5 , wherein R 3 is cyclopentyl or cyclohexyl.
7. The compound according to claim 1 , wherein R 4 is methyl.
8. A herbicidal composition comprising the compound according to claim 1 and an agriculturally acceptable formulation adjuvant.
9. The herbicidal composition according to claim 8 , further comprising at least one additional pesticide.
10. The herbicidal composition according to claim 9 , wherein the additional pesticide is a herbicide or herbicide safener.
11. A method of controlling weeds at a locus comprising application to the locus of a weed controlling amount of the compound according to claim 1 .