申请人:Kumiai Chemical Industry Co., Ltd.
公开号:US06130187A1
公开(公告)日:2000-10-10
A benzofuran-7-yl uracil derivative represented by the general formula (1): ##STR1## (wherein each of X and Y is a hydrogen atom, a halogen atom or the like, R.sup.1 is a hydrogen atom, an alkyl group or the like, R.sup.2 is a haloalkyl group or the like, R.sup.3 is a hydrogen atom, a halogen atom or the like, each of R.sup.4 and R.sup.5 which are independent of each other, is a hydrogen atom, an alkyl group, a haloalkyl group, a halogen atom, a cyano group, a phenyl group, a benzyl group, a nitro group or the like), and a herbicide containing it as an active ingredient. The compound of the present invention represented by the general formula (1) exhibits excellent herbicidal effects against various weeds which cause trouble in upland fields, such as, broad leaved weeds, gramineous weeds and perennial or annual cyperaceous weeds, over a wide range from the pre-emergence to the growing stage. It can further control annual weeds and perennial weeds growing in paddy fields.
一种由通式(1)表示的苯并呋喃-7-基尿嘧啶衍生物:##STR1##(其中X和Y中的每一个是氢原子、卤素原子或类似物,R.sup.1是氢原子、烷基或类似物,R.sup.2是卤代烷基或类似物,R.sup.3是氢原子、卤素原子或类似物,R.sup.4和R.sup.5各自独立,是氢原子、烷基、卤代烷基、卤素原子、氰基、苯基、苄基、硝基或类似物),以及含有其作为活性成分的除草剂。本发明的通式(1)表示的化合物对引起旱地田间麻烦的各种杂草,如广叶杂草、禾本科杂草和多年生或一年生莎草科杂草,展现出出色的除草效果,从出苗前到生长阶段覆盖范围广泛。它还可以进一步控制稻田中生长的一年生和多年生杂草。