Pyrazole derivative
A pyrazole derivative having the following formula stru-1: The pyrazole derivative is used for prevention and control of pests.
1. A pyrazole derivative having the following formula stru-1:
wherein:
R1, R2, R4, R5 are hydrogen;
R3 is t-butyl;
R6 is methyl;
R7 is selected from hydrogen, chlorine, and methyl;
R8 is ethyl;
R9 is selected from hydrogen, and methyl;
L is oxygen;
Q is oxygen;
R10 is selected from C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and C 2 -C 6 alkenyl.
2. The pyrazole derivative according to claim 1 , wherein the pyrazole derivative is selected from at least one of the compounds represented by the following structural formula:
3. The pyrazole derivative according to claim 1 , wherein the pyrazole derivative represented by the formula stru-1 comprises at least one selected from the group consisting of an E-type pyrazole derivative and a Z-type pyrazole derivative.
4. A preparation method of a pyrazole derivative represented by the formula stru-1 of claim 1 , comprising:
wherein the X is selected from halogen, R11 is ethyl, M is the metal ion from a base, the base is at least one selected from sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium oxide, potassium hydroxide, sodium hydride, sodium alkoxide and potassium alkoxide.
5. The preparation method according to claim 4 , wherein:
an acid is at least one selected from an organic acid and an inorganic acid, a solvent is at least one independently selected from a protic solvent and an aprotic solvent, and the catalyst is at least one selected from potassium iodide, sodium iodide, and a phase transfer catalyst.
6. The preparation method according to claim 5 , wherein:
the X is selected from chlorine, bromine or iodine, the acid is at least one selected from hydrochloric acid, sulfuric acid and acetic acid, and the solvent is at least one independently selected from acetone, methyl ethyl ketone, tetrahydrofuran, acetonitrile, N, N-dimethylformamide, toluene and chlorobenzene.
7. An agricultural insecticide and acaricide, wherein the insecticide and acaricide contain a compound represented by the formula stru-1 of claim 1 with a mass percentage of 0.1˜99%.
8. The pyrazole derivative according to claim 2 , comprising at least one selected from the group consisting of an E-type pyrazole derivative and a Z-type pyrazole derivative.
9. An agricultural insecticide and acaricide, wherein the insecticide and acaricide contain a compound represented by the formula stru-1 of claim 2 with a mass percentage of 0.1˜99%.
10. A pyrazole derivative, wherein the pyrazole derivative is selected from the compounds represented by the following structural formula:
11. An agricultural insecticide and acaricide, wherein the insecticide and acaricide contain a pyrazole derivative of claim 10 with a mass percentage of 0.1˜99%.