2-(4,6-Dimethoxy-2-pyrimidinyloxy)benzaldoximes, preparation processes thereof, herbicides containing the same, and herbicidal compositions containing the same along with other active ingredients
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0374839A1
公开(公告)日:1990-06-27
Disclosed are herbicidally active pyrimidine derivatives of the formula
wherein R represents a hydrogen atom or an etherifying group, e.g., a lower alkyl, lower alkenyl, lower alkynyl, phenyl-substituted lower alkenyl, lower haloalkenyl, cycloalkyl, substituted phenyl-substituted lower alkenyl or phenyl-substituted lower alkynyl group; or a group represented by the following formula:
wherein R1 represents a hydrogen atom or a lower alkyl group, X a halogen atom or a lower alkyl or lower alkoxyl group, m and n individually 0-2, and when m is 2, both Xs may be the same or different, and herbicidal compositions containing the same, alone or in combination with another herbicidally active compound, the pyrimidine derivatives being prepared by reaction of 2-(4,6-dimethoxy-2-pyrimidinyloxy)-benzaldehyde with NH20R or with a salt of hydroxylamine followed by reaction with a halide of the formula RY wherein R has the same value as above and Y is CI, Br or I.
公开了具有除草活性的嘧啶衍生物,其式如下
其中 R 代表氢原子或醚化基,例如低级烷基、低级烯基、低级炔基、苯基取代的低级烯基、低级卤代烯基、环烷基、取代的苯基取代的低级烯基或苯基取代的低级炔基;或下式所代表的基团:
其中 R1 代表氢原子或低级烷基,X 代表卤素原子或低级烷基或低级烷氧基,m 和 n 分别为 0-2,当 m 为 2 时,两个 X 可以相同或不同,以及含有相同的单独或与另一种除草活性化合物组合的除草组合物、嘧啶衍生物的制备方法是 2-(4,6-二甲氧基-2-嘧啶氧基)-苯甲醛与 NH20R 或羟胺盐反应,然后与式 RY 的卤化物反应,其中 R 的值与上述相同,Y 为 CI、Br 或 I。