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    • 9. 发明申请
    • CYCLIC UREA COMPOUNDS, THEIR PRODUCTION AND USE AS HERBICIDES
    • 循环尿素化合物,其生产和用作除草剂
    • WO1998006709A1
    • 1998-02-19
    • PCT/JP1997002799
    • 1997-08-11
    • TAKEDA CHEMICAL INDUSTRIES, LTD.ITOH, ShigeyukiKOBAYASHI, ShogoTANAKA, YasushiSUZUKI, Hiroyuki
    • TAKEDA CHEMICAL INDUSTRIES, LTD.
    • C07D271/06
    • C07D271/07A01N43/82A01N43/88A01N43/90A01N47/16C07D273/04C07D413/04C07D413/06C07D417/04
    • The present invention relates to a cyclic urea or thiourea compound comprising (i) a group of formula (I') wherein Q represents an aromatic ring group which may optionally be substituted; and R and R are the same or different and each represents a hydrocarbon group which may optionally be substituted or R and R may form a ring together with the adjacent carbon atom wherein the ring may optionally be substituted, as a substituent on one of the ring-forming nitrogen atoms, (ii) a group bonded through a carbon atom, a nitrogen atom, or an oxygen atom as a substituent on the other ring-forming nitrogen atom, and (iii) oxygen atom as a further ring member, or a salt thereof; a process for its production; and a composition. The compound or a salt thereof has potent herbicidal activity against a broad spectrum of weeds including paddy field weeds and plowed land weeds at low concentrations. Furthermore, it is less phytotoxic to crop plants such as rice, wheat, barley, soybean, and corn plants, thus having very satisfactory selective herbicidal activity. Moreover, this selective herbicidal action lasts long. In addition, the compound or salt which does no substantial harm to mammalian animals, fishes and shellfishes, is free from the pollution problem, and can be used very safely as a herbicide in paddy fields, plowlands, orchards, and non-crop lands.
    • 本发明涉及环脲或硫脲化合物,其包含(i)式(I')基团,其中Q 1表示可任选被取代的芳环基团; R 1和R 2相同或不同,各自表示任选被取代的烃基或R 1和R 2可以与相邻的碳原子一起形成环,其中环可以 在其中一个成环氮原子上作为取代基任选地被取代,(ii)通过碳原子,氮原子或氧原子作为其它成环氮原子上的取代基键合的基团和( iii)氧原子作为另外的环成员,或其盐; 一个生产过程; 和组合物。 该化合物或其盐对于广泛的杂草,包括稻田杂草和低浓度的耕地杂草具有强大的除草活性。 此外,对作物植物如水稻,小麦,大麦,大豆和玉米植物的植物毒性较小,因此具有非常令人满意的选择性除草活性。 此外,这种选择性除草作用持续很长时间。 此外,对哺乳动物,鱼类和贝类没有实质性伤害的化合物或盐,没有污染问题,可以非常安全地用于水田,耕地,果园和非作物用地中的除草剂。