Pyrazole carboxylate ester compound and use thereof
Pyrazole carboxylate ester compounds have a structural formula of formula (I): Q is Q 1 or Q 3 The pyrazole carboxylate ester compounds has herbicidal activity and can be used for controlling weeds.
1 . A compound of formula I:
wherein:
X 1 is methyl or chloro;
W is CX 2 ;
X 2 is Y 1 oxy;
Y 1 is C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, or C 3 -C 6 cycloalkyl C 1 -C 6 alkyl;
X 3 is methylsulfonyl;
Q is Q 1 or Q 3
R 1 is C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl C 1 -C 3 alkyl, or C 1 -C 6 alkoxy C 1 -C 3 alkyl;
R 2 and R 3 are the same or different, and are independently selected from hydrogen, C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, and C 3 -C 6 cycloalkyl C 1 -C 6 alkyl;
R 4 is ethyl; and
R 5 is hydrogen or halogen.
2 . A compound of formula I:
wherein:
X 1 is methyl or chloro;
W is CX 2 ;
X 2 is Y 1 oxy;
Y 1 is C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl C 1 -C 6 alkyl, or C 1 -C 6 alkoxy C 1 -C 6 alkyl;
X 3 is methylsulfonyl;
Q is selected from Q 1 or Q 3 :
R 1 is C 1 -C 6 alkyl;
R 2 and R 3 are the same or different, and are independently selected from hydrogen, C 1 -C 6 alkyl, and C 3 -C 6 cycloalkyl;
R 4 is ethyl; and
R 5 is hydrogen.
3 . A herbicidal composition, comprising an active ingredient and an agriculturally acceptable carrier, wherein the active ingredient is the compound of the formula I according to claim 1 , and a weight percentage of the active ingredient in the composition is 1-99%.
4 . A method for controlling weeds, comprising applying a herbicidally effective dose of the herbicidal composition of claim 3 to a weed or a growth medium or site of the weed.
5 . A herbicidal composition, comprising an active ingredient and an agriculturally acceptable carrier, wherein the active ingredient is the compound of the formula I according to claim 2 , and a weight percentage of the active ingredient in the composition is 1-99%.
6 . A method for controlling weeds, comprising applying a herbicidally effective dose of the herbicidal composition of claim 5 to a weed or a growth medium or site of the weed.