3,4-Dihydro-1,2,4-triazine compounds
    1.
    发明授权
    3,4-Dihydro-1,2,4-triazine compounds 失效
    3,4-二氢-1,2,4-三嗪化合物

    公开(公告)号:US3940391A

    公开(公告)日:1976-02-24

    申请号:US502249

    申请日:1974-08-29

    CPC分类号: A01N43/707 C07D253/07

    摘要: Novel 3,4-dihydro-1,2,4-triazine compounds of the formula ##SPC1##In whichR.sup.1 is alkyl or cycloalkyl;R.sup.2 is methyl, amino, alkylideneamino, methylamino, .beta.-hydroxyethylamino, 2-furylmethylamino, aralkylamino or substituted aralkylamino; and R.sup.3 is alkyl, aryl or substituted aryl;Are prepared by reacting the corresponding 1,2,4-triazin-5-one with sodium borohydride in the presence of a polar solvent at a temperature between -10.degree. and +25.degree.C. The novel compounds are outstandingly effective as herbicides and display particularly selective action.

    摘要翻译: 式III的新型3,4-二氢-1,2,4-三嗪化合物,其中R1是烷基或环烷基; R2是甲基,氨基,亚烷基氨基,甲基氨基,β-羟乙基氨基,2-呋喃甲基氨基,芳烷基氨基或取代的芳烷基氨基; 并且R 3是烷基,芳基或取代的芳基; 在-10℃和+ 25℃之间的温度下,在极性溶剂存在下,用硼酸钠反应相应的1,2,4-三唑-5-酮。这种新型化合物作为除草剂和显示效果显着 特别是选择性行动。

    Tetrahydrofuran-ether compounds and herbicidal compositions
    5.
    发明授权
    Tetrahydrofuran-ether compounds and herbicidal compositions 失效
    四氢呋喃醚化合物和除草组合物

    公开(公告)号:US4146384A

    公开(公告)日:1979-03-27

    申请号:US878546

    申请日:1978-02-16

    摘要: New tetrahydrofuran-ether compounds of the formula ##STR1## in which A is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, or substituted phenyl,B.sup.1, b.sup.2, c.sup.1, c.sup.2, d.sup.1 and D.sup.2, which are selected independently of one another, each represent hydrogen, alkyl, haloalkyl, alkoxyalkyl, phenyl, or substituted phenyl,R is aryl or substituted aryl; andX is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, phenyl, or substituted phenyl;Exhibit powerful herbicidal, especially selectively herbicidal, properties and are particularly useful as grass herbicides.

    摘要翻译: 其中A是氢,烷基,烯基,炔基,环烷基,苯基或取代的苯基,B1,B2,C1,C2,D1和D2的新的四氢呋喃 - 醚化合物,其中A是独立选择的 各自表示氢,烷基,卤代烷基,烷氧基烷基,苯基或取代的苯基,R是芳基或取代的芳基; X是氢,烷基,烯基,炔基,卤代烷基,苯基或取代的苯基; 展示强大的除草剂,特别是选择性除草剂,特性,特别适用于草甘膦。