| 摘要 |
The invention provides novel phenylurea of formula I <IMAGE> I wherein R1 is H or CHO, R2 is H, CH3 or OCH3 R3 is a group G1 of the formula <IMAGE> or a group G2 of the formula CH(CH3)CH2Y in which Y is halogen selected from Cl or F or is CH3O and X is H or halogen selected from Cl or Br, the use of these novel compounds as herbicides, compositions for facilitating such use and the preparation of the novel phenylurea.
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