Pyridyloxypyrimidine derivatives represented by the following formula [I]:
wherein R means a formyl group or an acetal group represented by
R¹ and R² being the same or different and individually denoting an alkyl group having 1-4 carbon atoms or R¹ and R² being coupled together and denoting an alkylene group, R³, having 2-3 carbon atoms; preparation processes of the derivatives; and herbicidal compositions containing one or more of the derivatives as an active ingredient.
下式[I]代表的
吡啶氧基
嘧啶衍
生物:
其中 R 指甲酰基团或
乙缩醛基团,其代表为
R¹和R²相同或不同,单独表示具有1-4个碳原子的烷基,或R¹和R²连接在一起,表示具有2-3个碳原子的亚烷基R³;衍
生物的制备工艺;以及含有一种或多种衍
生物作为活性成分的除草组合物。