Pyrazolyl acrylonitrile compounds and uses thereof
A kind of pyrazolyl acrylniitrile compounds represented by the structures of formula I or stereoisomers thereof are disclosed in the present invention. Where in: R 1 is selected from the group of substituents consisting of H, C 1 -C 4 alkoxy C 1 -C 2 alkyl, C 3 -C 5 alkenyloxy C 1 -C 2 alkyl, C 3 -C 5 alknyloxy C 1 -C 2 alkyl, C 1 -C 4 alkylthio C 1 -C 2 alkyl, C 1 -C 5 alkyl carbonyl, C 3 -C 8 cycloalkyl carbonyl, C 1 -C 5 alkoxy carbonyl or C 1 -C 5 alkylthio carbonyl; R 2 is Cl or methyl; R 3 is H, methyl, CN, NO 2 or halogen. Or its stereoisomers. The Formula I compounds have high insecticidal activities or acaricidal activities, so they can be used as insecticide or acaricide.
1. A pyrazolyl acrylonitrile compound having formula I:
wherein:
R 1 is H, C 1 -C 4 alkoxy C 1 -C 2 alkyl, C 3 -C 5 alkenyloxy C 1 -C 2 alkyl, C 3 -C 5 alkynyloxy C 1 -C 2 alkyl, C 1 -C 4 alkylthio C 1 -C 2 alkyl, C 1 -C 5 alkyl carbonyl, C 3 -C 8 cycloalkyl carbonyl, C 1 -C 5 alkoxy carbonyl, or C 1 -C 4 alkylthio carbonyl;
R 2 is Cl or methyl;
R 3 is H, methyl, CN, NO 2 , or halogen; or
a stereoisomer thereof.
2. The compound according to claim 1 , wherein:
R 1 is H, C 1 -C 4 alkoxy C 1 -C 2 alkyl, C 1 -C 5 alkyl carbonyl, C 3 -C 8 cycloalkyl carbonyl, or C 1 -C 5 alkoxy carbonyl;
R 2 is methyl;
R 3 is H, methyl, CN, or halogen; or
a stereoisomer thereof.
3. The compound according to claim 2 , wherein:
R 1 is C 1 -C 2 alkoxy methyl, C 4 -C 5 alkylc arbonyl, C 3 -C 5 cycloalkyl carbonyl, or C 1 -C 2 alkoxy carbonyl;
R 2 is methyl;
R 3 is H, CN, F or Cl;
a stereoisomer thereof.
4. A method of controlling mites or insects, which comprises using a compound according to claim 1 .
5. An insecticidal or acaricidal composition, comprising a compound according to claim 1 and and an acceptable carrier, wherein the amount of the compound is in the range of 1%-99% by weight of the composition.
6. A method for controlling insects or mites, applying the composition of claim 5 to the insects or mites or to the medium upon which the insects or mites grow, wherein the amount applied is an effective dosage within a range of 10 g/ha to 1000 g/ha.