PURPOSE: To obtain the titled substance having a powerful insecticidal activity with low toxicity to warm-blooded animals, by reacting 2,3-dihydro-2,2-dimethylbenzofuran-7-yl N-methylcarbamate with a novel aminosulfenyl chloride derivative as raw materials.
CONSTITUTION: 2,3-Dihydro-2,2-dimethylbenzofuran-7-yl N-methylcarbamate is reacted with an aminosulfenyl chloride derivative of formula II (R1 and R2 are X-COOR3 or Y-CN; X and Y are 1W6C alkylene; R3 is 1W8C alkyl except when both X and Y are methylene groups; either one of R1 and R2 represents X- COOR3 or Y-CN, the other represents 1W8C alkyl, benzyl, etc.) in a molar amount of preferably 1W1.2 times of that of the compound of formulaIin the presence of a basic compound to give the aimed compound of formula III. The compound of formula II is novel and synthesized by reacting a compound of formula IV with sulfur monochloride.
ASAI NOBUYOSHI
TANAKA AKIRA
GOTOU TAKESHI
