PROCESS FOR PREPARING NEW ORGANIC PHOSPHORIC ACID ESTHER HYDRIDES, AND PROCESS FOR PREPARING INSECTICIDE AND NEMATICIDE PREPARATIONS THEREOF.

摘要

PURPOSE:Organic phosphorus acid anhydride of formula I (R1 is lower alkyl;R2 is alkoxy, alkylthio, alkylamino or dialkylamino), e.g. (O-ethyl-Spropylphosphorodithioate) (O,O-diethylphosphorothioate) anhydride.