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Benzoylurea derivative, its preparation and insecticide

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专利汇可以提供Benzoylurea derivative, its preparation and insecticide专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:The compound of formula I (R
1 is halogen or methyl; R
2 is H or halogen; R
3 and R
4 are halogen; X and Y are O or S).
EXAMPLE: 1-(2,5-Dichloro-3-trifluoromethylphenyl)-3-(2,6-difluoro-benzoyl)urea.
USE: An insecticide having broad insecticidal spectrum and excellent larvicidal and ovicidal activities, and exhibiting excellent effect especially against lepidopterous vermin.
PREPARATION: The compound of formula I can be prepared by reacting the isocyanate compound of formula II with 2,5-dihalo-3-trifluoromethylaniline of formula III is a solvent such as benzene, if necessary in the presence of a base (e.g. triethylamine), at 0W80°C for 30minW1hr.
COPYRIGHT: (C)1986,JPO&Japio,下面是Benzoylurea derivative, its preparation and insecticide专利的具体信息内容。

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