Pyrazolesulfonylurea derivative, its preparation and selective herbicide containing it
专利汇可以提供Pyrazolesulfonylurea derivative, its preparation and selective herbicide containing it专利检索，专利查询，专利分析的服务。并且NEW MATERIAL:A compound shown by the formula I [A is H, lower alkyl, or phenyl; B is H, or lower alkyl; D is H, COOR(R is lower alkyl), COAr(Ar is phenyl which can be replaced with halogen), etc,; X and Y are H, lower alkyl, etc.; Z is N, etc.].
EXAMPLE: N-[(4, 6 - Dimethyoxypyrimidin-2-yl)aminocarbonyl]-4-ethoxycarbonyl)- 1-methylpyrazole-5-sulfonamide.
USE: A selective herbicide. Having high herbicidal action and high safety to important crops such as rice plant, wheat, etc. Since a small amount of it is effective, it is also usedful as a herbicide for orchards, or nonagricultural lands.
PREPARATION: A derivative shown by the formula II is dissolved in a sufficiently dried inert soluvent such as dioxane, etc. and a pyrimidine or triazine derivative shown by the formula III, to give a compound shown by the formula I .
COPYRIGHT: (C)1984,JPO&Japio，下面是Pyrazolesulfonylurea derivative, its preparation and selective herbicide containing it专利的具体信息内容。
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5 液体除草制剂
