申请人:Ciba-Geigy Corporation
公开号:US04801708A1
公开(公告)日:1989-01-31
The invention relates to 4-methylamino-1,2,4-triazin-5-one of the formula I ##STR1## wherein R.sup.1 is C.sub.3 -C.sub.8 cycloalkyl or C.sub.3 -C.sub.8 cycloalkyl which is substituted by C.sub.1 -C.sub.4 alkyl; C.sub.3 -C.sub.8 halocycloalkyl, C.sub.3 -C.sub.8 alkyl, C.sub.3 -C.sub.8 haloalkyl, 2-furyl, 2-thienyl, phenyl, benzyl, or phenyl or benzyl each substituted by one or more members selected from the group consisting of halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 haloalkoxy, R.sup.2 is hydrogen or methyl, and R.sup.3 is cyclopropyl, cyclopropylmethyl, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl or C.sub.3 -C.sub.4 alkynyl. These compounds have selective herbicidal properties and are therefore pre-eminently suitable for controlling weeds in crops of useful plants, for example in cereals, maize, soybeans and sugar cane. They are also suitable for controlling harmful insects.
该发明涉及公式I的4-甲氨基-1,2,4-三嗪-5-酮,其中R1为C3-C8环烷基或被C1-C4烷基取代的C3-C8环烷基;C3-C8卤代环烷基,C3-C8烷基,C3-C8卤代烷基,2-呋喃基,2-噻吩基,苯基,苄基,或被卤素,C1-C4烷基,C1-C4卤代烷基,C1-C4烷氧基或C1-C4卤代烷氧基中的一种或多种成员取代的苯基或苄基;R2为氢或甲基,R3为环丙基,环丙基甲基,C1-C4烷基,C3-C4烯基或C3-C4炔基。这些化合物具有选择性除草特性,因此非常适合控制有用植物的杂草,例如小麦,玉米,大豆和甘蔗。它们也适用于控制有害昆虫。