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Substituted acetanilide compound, its preparation and herbicide containing the same as active constituent

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专利汇可以提供Substituted acetanilide compound, its preparation and herbicide containing the same as active constituent专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:A substituted acetanilide compound of formula I (X is O or S; R is ethyl, n-propyl or isopropyl).
EXAMPLE: Benzothiazol-2-yloxy-N-ethylacetanilide.
USE: A herbicide exhibiting a remarkable selective control effect particularly as a pre- emergence soil treating agent or foliar and soil treating agent against weeds in paddy fields with low toxicity to warm-blooded animals without phytotoxicity to cultivated plants.
PROCESS: A 2-halogenobenzothiazole of formula II (Hal is halogen) is reacted with a compound of formula III (M is H or alkali metal) in a solvent, e.g. water or hexane, or a diluent in the presence of an acid binder, e.g. triethylamine or pyridine, to give the compound of formula I. The reaction temperature is preferably 0W100°C.
COPYRIGHT: (C)1981,JPO&Japio,下面是Substituted acetanilide compound, its preparation and herbicide containing the same as active constituent专利的具体信息内容。

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