THIOPHOSPHORIC ACID ESTER DERIVATIVE, PRODUCTION THEREOF AND INSECTICIDE AND SOIL INSECT PEST CONTROLLING AGENT CONTAINING SAID DERIVATIVE AS ACTIVE INGREDIENT

摘要

NEW MATERIAL:An O, O-dialkyl O-1-( N-methoxyimino )-2-methoxyethyl thiophosphate expressed by formula I (R is methyl or ethyl). USE:A soil insect pest controlling agent. PREPARATION:O,O-Dialkyl thiophosphoryl chloride expressed by formula II is reacted with methoxyaceto-N-methoxyamide expressed by formula III, preferably at 1:1-2 equiv. ratio in the presence of preferably 1-2 equiv. base (e.g. NaOH) using toluene, methyl ethyl ketone, etc., as a solvent, normally at 0-100 deg.C for 30min-24hr.