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Substituted phenylurea derivative and selective herbicides compising it

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专利汇可以提供Substituted phenylurea derivative and selective herbicides compising it专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:N
1 -3-(3-Trifluoro methyl phenoxy)phenyl-N,N-dimethylurea of formula I.
USE: Herbicides suitable for foliar treatment of weeds after germination in the plowed soybean fields, with great safety to soybean, and substantially nontoxic even in a large amount.
PROCESS: 3-(3-Trifluorophenoxy)phenyl isocyanate is reacted with dimethylamine in an inert organic solvent, e.g. benzene, to give the objective compound of formula I. Alternatively, 3-(3-trifluoro methyl)aniline is reacted with N, N-dimethylcarbamyl chloride in the presence of a dehydrochlorinating agent in an inert organic solvent.
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