Patent ID: 8455532

Claim:
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.