PYRAZOLINES AND INSECTICIDAL COMPOSITIONS

摘要

New pyrazolines of the following formula are insecticides: wherein RA is of the formula in which R'A is selected from hydrogen, halogen, lower alkyl, lower alkoxy, lower haloalkoxy, lower alkynyloxy and lower haloalkyl; or in which X is a bridge of the formula [O-(CR'AAR'AB)a-Oa'] wherein a is 1-3, a' is 0 or 1, a+a' is at least 2 but no greater than 3, R'AA and R'AB are independently selected from hydrogen, halogen and lower alkyl, and R'AC is selected from hydrogen, halogen, lower alkyl, lower alkoxy, lower haloalkoxy, and lower haloalkyl; RB is a 4- or 5-substituent of the formula in which R'B is selected from hydrogen, halogen, lower alkyl, lower alkoxy, and lower haloalkyl; or in which Y is a bridge of the formula [O-(CR'BAR'BB)b-Ob'] wherein b is 1-3, b' is 0 or 1, b+b' is at least 2 but no greater than 3, R'BA and R'BB, are independently selected from hydrogen, halogen and lower alkyl, and R'BC is selected from hydrogen, halogen, lower alkyl, lower alkoxy, lower haloalkoxy, and lower haloalkyl; RC is of the formula in which RD is selected from hydrogen and lower alkyl, and RE is selected from halogen, lower alkyl, lower alkoxy, lower haloalkoxy, lower haloalkyl, cyano, nitro, NRFRG wherein RF and RG are independently lower alkyl, and -SOnRH wherein RH is lower alkyl and n is 0-2; or in which Z is a bridge of the formula [O-(CR'CAR'CB)c-Oc'] wherein c is 1-3, c' is 0 or 1, c+c' is at least 2 but no greater than 3, R'CA and R'CB are independently selected from hydrogen, halogen and lower alkyl, provided R'CA & R'CB are not both H if c=c'=1 and R'CC is selected from hydrogen, halogen. lower alkyl, lower alkoxy, lower haloalkoxy, and lower haloalkyl; RN is hydrogen or lower alkyl; and V and W are independently oxygen or sulfur.