申请人:FMC Corporation
公开号:US05753595A1
公开(公告)日:1998-05-19
Herbicidal 3-(substituted benzoxazol-7-yl) and 3-(substituted benzothiazol-7-yl)-1 -substituted-6-trifluoromethyl-2,4-(1H,3H)pyrimidinediones, compositions containing them, and methods of using them to control undesired plant growth are disclosed, as are novel intermediates used in the preparation of these compounds. The herbicidal compounds of the present invention are defined by the following generic structure: ##STR1## in which R is selected from a variety of substituents, including halogen, alkyl, alkenyl, alkynyl, phenyl, phenylalkyl, alkylphenylalkyl, haloalkyl, hydroxy, alkoxy, hydroxyalkyl, halophenyl, halophenylalkyl, alkoxyphenyl, sulfhydryl, alkylthio, piperidinyl, alkylamino, alkoxyalkyl, phenoxy, amino, alkylsulfonylamino, phenylsulfonylamino, and carboxy; R.sup.1 is alkyl or amino; R.sup.2 is hydrogen or halogen; X is oxygen or sulfur; Y is hydrogen, halogen, alkoxy, cyano, or nitro, and; Z is halogen; where halogen is bromine, chlorine, fluorine, or iodine, and each alkyl, alkoxy, alkenyl, or alkynyl moiety has one to six carbon atoms.
本发明揭示了除草剂3-(取代苯并噁唑-7-基)和3-(取代苯并噻唑-7-基)-1-取代-6-三氟甲基-2,4-(1H,3H)嘧啶二酮,包含它们的组合物,以及使用它们控制不受欢迎的植物生长的方法,还公开了用于制备这些化合物的新型中间体。本发明的除草剂化合物由以下通用结构定义:
R是从各种取代基中选择的,包括卤素、烷基、烯基、炔基、苯基、苯基烷基、烷基苯基烷基、卤代烷基、羟基、烷氧基、羟基烷基、卤代苯基、卤代苯基烷基、烷氧基苯基、硫醇基、烷基硫基、哌啶基、烷基氨基、烷氧基烷基、苯氧基、氨基、烷基磺酰氨基、苯基磺酰氨基和羧基;R^1是烷基或氨基;R^2是氢或卤素;X是氧或硫;Y是氢、卤素、烷氧基、氰基或硝基;Z是卤素;其中卤素是溴、氯、氟或碘,每个烷基、烷氧基、烯基或炔基基团具有一至六个碳原子。