申请人:Philagro
公开号:US04259506A1
公开(公告)日:1981-03-31
They correspond to the formula: ##STR1## in which: X is an oxygen or sulphur atom, Y is a hydrogen atom or an alkyl radical (C.sub.1 -C.sub.4), Z is a halogen atom or an alkyl (C.sub.1 -C.sub.6), cycloalkyl (C.sub.5 -C.sub.7), alkoxy (C.sub.1 -C.sub.4) or phenyl radical, n is a number equal to 0, 1, 2 or 3, R.sub.1 is a hydrogen atom or an alkyl radical (C.sub.1 -C.sub.4) and R.sub.2 and R.sub.3, which are identical or different, each represent a hydrogen atom or an alkyl (C.sub.1 -C.sub.6), alkenyl (C.sub.2 -C.sub.4) or alkynyl (C.sub.2 -C.sub.4) radical, or together form a heterocyclic ring possessing from 5 to 6 ring members and optionally containing, in addition to the nitrogen atom, an oxygen or sulphur atom as a hetero-atom. These compounds can be used for selectively destroying weeds in crops such as maize, soya, cotton, sunflower, rice and horse bean.
它们对应于以下公式:##STR1## 其中:X是氧或硫原子,Y是氢原子或烷基(C.sub.1-C.sub.4),Z是卤素原子或烷基(C.sub.1-C.sub.6),环烷基(C.sub.5-C.sub.7),烷氧基(C.sub.1-C.sub.4)或苯基,n是等于0、1、2或3的数字,R.sub.1是氢原子或烷基(C.sub.1-C.sub.4),R.sub.2和R.sub.3相同或不同,每个代表氢原子或烷基(C.sub.1-C.sub.6),烯基(C.sub.2-C.sub.4)或炔基(C.sub.2-C.sub.4)基团,或者一起形成具有5至6个环成员并且可选地含有除氮原子外的氧或硫原子作为杂原子的杂环。这些化合物可用于选择性地消灭玉米、大豆、棉花、向日葵、稻米和马豆等作物中的杂草。