Herbicidally active methyl-substituted tetrahydro-2-pyrimidinone
derivatives
    38.
    发明授权
    Herbicidally active methyl-substituted tetrahydro-2-pyrimidinone derivatives 失效
    除草活性甲基取代的四氢-2-嘧啶酮衍生物

    公开(公告)号:US4514210A

    公开(公告)日:1985-04-30

    申请号:US466696

    申请日:1983-02-15

    摘要: Methyl-substituted tetrahydro-2-pyrimidinone derivatives of the general formula ##STR1## in which each Ar, independently of each other, represents an aryl group which is optionally mono- or poly-substituted by substituent(s) selected from halogen, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, C.sub.1 to C.sub.6 alkylthio, nitro, phenoxy and trifluoromethyl, andR.sup.1, R.sup.2 and R.sup.3 independently represent a hydrogen atom or a methyl group,provided that at least one of R.sup.1, R.sup.2 and R.sup.3 represents a methyl group,are new and find use as herbicides, in particular as selective herbicides which may be used on weeds in crops such as cotton and rice. The N,N'-diaryl-N-haloalkyl-ureas which are starting materials for the production of compounds of formula (I) are also new.

    摘要翻译: 其中每个Ar彼此独立地表示任选被一个或多个被选自以下的取代基单取代或被多取代的芳基的通式为(I)的甲基取代的四氢-2-嘧啶酮衍生物: ,C1-C6烷基,C1-C6烷氧基,C1-C6烷硫基,硝基,苯氧基和三氟甲基,R1,R2和R3独立地表示氢原子或甲基,条件是R1,R2和R3中的至少一个表示 甲基是新的,可用作除草剂,特别是作为可用于作物如棉花和水稻的杂草的选择性除草剂。 作为制备式(I)化合物的起始原料的N,N'-二芳基-N-卤代烷基脲也是新的。

    Substituted phenoxypropionates and herbicidal compositions
    39.
    发明授权
    Substituted phenoxypropionates and herbicidal compositions 失效
    取代苯氧基丙酸酯和除草组合物

    公开(公告)号:US4441913A

    公开(公告)日:1984-04-10

    申请号:US389525

    申请日:1982-06-17

    CPC分类号: C07D213/643

    摘要: Novel substituted phenoxypropionates of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently are a hydrogen atom or a C.sub.1 to C.sub.6 alkyl group,X is a hydrogen or halogen atom, nitro, C.sub.1 to C.sub.6 alkyl or C.sub.1 to C.sub.6 alkoxy,a and n each independently are 1 or 2, andAr is a group of the formula ##STR2## wherein Y is a trifluoromethyl group, a halogen atom ora nitro, cyano or C.sub.1 to C.sub.6 alkyl group, andb is 1, 2 or 3,and their use as herbicides.Novel intermediates of the formulae ##STR3## in which formulae R.sup.1, R.sup.2, X, a and n have the meanings given above andZ.sup.1 represents halogen.

    摘要翻译: 式(I)的新型取代苯氧基丙酸酯其中R 1和R 2各自独立地为氢原子或C 1至C 6烷基,X为氢或卤素原子,硝基,C 1至C 6烷基或C 1至C 6烷氧基 a和n各自独立地为1或2,并且Ar为式(III)中的基团,其中Y为三氟甲基,卤素原子或硝基,氰基或C 1至C 6烷基,b为1,2 或3,以及它们作为除草剂的用途。 具有式R1,R2,X,a和n具有上述含义的式(IMA)(III)或式(VII))的新型中间体,Z1表示卤素。

    Heterocyclic compounds
    40.
    再颁专利
    Heterocyclic compounds 有权
    杂环化合物

    公开(公告)号:USRE39127E1

    公开(公告)日:2006-06-13

    申请号:US10067191

    申请日:2002-02-04

    摘要: Novel heterocyclic compounds of the formula wherein, R1 represents a hydrogen atom or an alkyl group, A represents an ethylene group which may be substituted by alkyl or a trimethylene group which may be substituted by alkyl, X represents an oxygen or sulfur atom or the group in which R2 represents a hydrogen atom of an optionally substituted alkyl, an alkenyl, an alkynyl or an acyl group, and R3 represents a hydrogen atom or an alkyl group, and Z represents an optionally sibstituted 5- or 6-membered heterocyclic group which contains at least two hetero atoms selected from oxygen, sulfur and nitrogen atoms, or an optionally substituted 3- or 4-pyridyl group. The above defined novel heterocyclic compounds of formula (I) exhibit powerful insecticidal properties.

    摘要翻译: 下式的新型杂环化合物其中R 1表示氢原子或烷基,A表示可以被可被烷基取代的烷基或三亚甲基取代的亚乙基,X表示 氧或硫原子或其中R 2表示任选取代的烷基,烯基,炔基或酰基的氢原子的基团,R 3表示 氢原子或烷基,Z表示含有至少两个选自氧,硫和氮原子的杂原子的任选取代的5-或6-元杂环基,或任选取代的3-或4-吡啶基。 上述定义的式(I)新颖杂环化合物具有强大的杀虫性能。