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Organic phosphoric ester, its preparation, insecticide, acaricide, and nematocide

阅读:557发布:2022-01-10

专利汇可以提供Organic phosphoric ester, its preparation, insecticide, acaricide, and nematocide专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:A compound shown by the formula I (X is O, S, or NH; Y is O, or S; R
1 is lower alkyl; R
2 is lower alkyl, or lower alkoxy-lower alkyl; R
3 is fluoro-substituted-lower alkyl; Z is lower alkyl, lower alkoxy, or halogen; n is 0, or 2).
EXAMPLE: O, O-Dimethyl O-[3-methyl-4-(2,2,2-trifluoroethylthio) phenyl] thiophosphate shown by the formula II.
USE: An insecticide, acaricide, and nematocide.
PREPARATION: A phosphoric ester halide (e.g., O-ethyl-S-propyl-thio-phosphoric ester chloride, etc.) shown by the formula III (Hal is halogen) is reacted with a phenol [e.g., 3-methyl-4-(2,2,2-trifluoro-ethylthio) phenol, etc.] shown by the formula IV in the presence of a base (e.g., NaOH, etc.) at preferably 10W70°C usually using an inert solvent and a diluent.
COPYRIGHT: (C)1984,JPO&Japio,下面是Organic phosphoric ester, its preparation, insecticide, acaricide, and nematocide专利的具体信息内容。

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