PURPOSE: To obtain a new compound capable of effectively controlling insect pests of Orthoptera, Hemiptera, Lepidoptera, Coleoptera, Hymenoptera, Diptera, Isoptera, and Acarina and Anoplura and hardly having undesirable influence on mammal, fishes and beneficial insects.
CONSTITUTION: A compound of formula I [W is 0 or S; X, Y and Z are Cl, Br, OH, cyano, etc.; R1 to R4 each is H, a 1-6C alkyl; (1) and (m) are each an integer of 0-5; (n) is an integer of 1-5], e.g. N(4-chlorophenyl)-4- chlorobenzamide-4trifluoromethoxysemicarbazone. For example, this compound is obtained by reacting a compound of formula II with phosphorus pentachloride without using a solvent to afford a compound of formula III, reacting the compound of formula III with a compound of formula IV in an inert solvent to give a compound of formula V and further reacting the compound of formula V with a compound of the formula R2L1 (L1 is a halogen or an alkylsulfonate) in the presence of a base in an inert solvent.
YAGI KAZUO
OTSU OSAMU
NUMATA AKIRA
OGURA TOMOYUKI
MIYAKE TOSHIRO
FUJITA AKIHIKO
MIMORI NORIHIKO
TAKII SHINJI
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