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Substituted phenylurea derivative, its preparation and herbicide containing the same as active constituent

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专利汇可以提供Substituted phenylurea derivative, 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 compound of formulaI(R is cycloalkyl, or methyl-substituted cycloalkyl; n is 3 or 4; A is methyl or methoxyl).
EXAMPLE: N'-3-[3-(2-Methylcyclohexyl)propyl]phenyl-N-methoxy-N-methylurea.
USE: A selective herbicide for sugar beets by the foliar treatment, particularly effective against common nightshade, cleavers, violets, etc.
PROCESS: An aniline derivative, e.g. 3-[3-(2-methylcyclohexyl)propyl]aniline, of formula II is reacted with N-methoxy-N-methylcarbamyl chloride or N, N- dimethylcarbamyl chloride in an organic solvent, e.g. benzene, in the presence of a dehydrochlorinating agent, e.g. pyridine, to give the compound of formulaI. The reaction temperature is 0W150°C, and the reaction is completed for a time ranging from a moment to 10hr.
COPYRIGHT: (C)1982,JPO&Japio,下面是Substituted phenylurea derivative, its preparation and herbicide containing the same as active constituent专利的具体信息内容。

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