A benzoxazinone compound represented by the formula (I):
wherein R¹ represents a hydrogen atom or an alkyl group, and R² represents a hydrogen atom, an alkyl group, a cyanoalkyl group, an alkenyl group, an alkynyl group or an aralkyl group; a process for preparing the same; and a herbicidal composition comprising the benzoxazinone compound as an active component are disclosed. The above benzoxazinone compounds exhibit a high selectivity for useful crop plants and a strong herbicidal activity with respect to various noxious weeds.
一种由式(I)代表的苯并恶嗪酮化合物:
其中 R¹ 代表氢原子或烷基,R² 代表氢原子、烷基、
氰基烷基、烯基、炔基或芳基;本发明公开了制备该化合物的工艺;以及以该苯并噁嗪酮化合物为活性成分的除草组合物。上述苯并噁嗪酮化合物对有用的作物植物具有很高的选择性,对各种有害杂草具有很强的除草活性。