申请人:Kumiai Chemical Industry Co., Ltd.
公开号:US08648075B2
公开(公告)日:2014-02-11
The present invention is to provide an oxopyrazine derivative having an excellent herbicidal activity and besides exhibiting high safety for useful crops and the like, or a salt thereof, and a herbicide containing the same.
The present invention relates to an oxopyrazine derivative represented by formula [I]:
wherein X1 represents an oxygen atom or a sulfur atom; X2 represents CH or N(O)m; m represents an integer of 0 or 1; R1 represents a hydrogen atom, a C1-C12 alkyl group and the like; R2 represents a halogen atom, a cyano group and the like; R3 is a hydroxyl group, a halogen atom and the like; A1 represents C(R4R5); A2 represents C(R6R7) or C═O; A3 represents C(R8R9); R4 to R9 represent a hydrogen atom or an alkyl group,
or a salt thereof, and a herbicide containing these compounds.
本发明提供一种具有优异除草活性且对有用作物等表现出高安全性的氧杂吡嗪衍生物或其盐,以及含有该衍生物的除草剂。本发明涉及一种由式[I]表示的氧杂吡嗪衍生物:其中,X1表示氧原子或硫原子;X2表示CH或N(O)m;m表示0或1的整数;R1表示氢原子、C1-C12烷基等;R2表示卤素原子、氰基等;R3表示羟基、卤素原子等;A1表示C(R4R5);A2表示C(R6R7)或C═O;A3表示C(R8R9);R4至R9表示氢原子或烷基,或其盐,以及含有这些化合物的除草剂。