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

摘要

NEW MATERIAL:An, O,O-dialkyl O-1-(N-methoxyimino)propyl thiophosphate expressed by formula I (R represents methyl or ethyl). EXAMPLE:O,O-Diethyl O-1-(N-methoxyimino)propyl thiophosphate. USE:A controlling agent against soil insect pests. PREPARATION:An O,O-dialkyl thiophosphoric acid chloride expressed by formula II (example; O,O-diethyl thiophosphoric acid chloride) is reacted with N- methoxypropane amide expressed by formula III, preferably at an equivalent ratio of 1:1-2, in the presence of a base (example; sodium hydroxide or pyridine) in a solvent such as toluene.