Hexahydroisoindole derivative, its preparation, and herbicide
专利汇可以提供Hexahydroisoindole derivative, its preparation, and herbicide专利检索，专利查询，专利分析的服务。并且NEW MATERIAL:A hexahydroisoindole derivative shown by the formula I (R is halogen).
EXAMPLE: 2-(4-Chloro-2-fluorophenyl)-2, 3, 4, 5, 6, 7-hexahydro-3-thioxo-1H-isoindole-1-one.
USE: A herbicide. Showing improved herbicidal actions on a wide range of weeds, e.g., weeds in paddy fields, plowed fields, etc., exhibiting extremely high selectivity for a leguminous plant, e.g., soybean, etc. and cotton by pre-emergence soil application, the herbicide can be used safely with respect to both toxicity and environmental pollution.
PROCESS: A compound shown by the formula II is reacted with hydrogen cyanide to give a compound shown by the formula III, which is hydrolyzed to give a compound shown by the formula IV. This compound is dehydrated to give a compound shown by the formula I. A compound shown by the formula V is reacted with thiol sulfonate to give the compound shown by the formula I.
COPYRIGHT: (C)1981,JPO&Japio，下面是Hexahydroisoindole derivative, its preparation, and herbicide专利的具体信息内容。
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5 液体除草制剂
