Herbicidal sulfonamides, compositions and use
    82.
    发明授权
    Herbicidal sulfonamides, compositions and use 失效
    除草磺酰胺,组合物和用途

    公开(公告)号:US4545808A

    公开(公告)日:1985-10-08

    申请号:US480591

    申请日:1983-03-30

    申请人: George Levitt

    发明人: George Levitt

    摘要: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.

    摘要翻译: 其中芳基在2-位被羧基,酯,硫酯或酰胺取代的N-(杂环氨基羰基)芳基磺酰胺; 例如 N - [(4,6-二甲基嘧啶-2-基)氨基羰基] -2-甲氧基羰基苯磺酰胺或N - [(4,6-二甲氧基-1,3,5-三嗪-2-基)氨基羰基] -2-甲氧基羰基b 苯磺酰胺; 可用于调节植物生长和出苗前和芽后除草剂。

    Process for preparing arylsulfonyl isocyanates by phosgenation of
arylsulfonamides
    89.
    发明授权
    Process for preparing arylsulfonyl isocyanates by phosgenation of arylsulfonamides 失效
    通过芳基磺酰胺光气化制备芳基磺酰基异氰酸酯的方法

    公开(公告)号:US4379769A

    公开(公告)日:1983-04-12

    申请号:US192707

    申请日:1980-10-01

    申请人: George Levitt

    发明人: George Levitt

    IPC分类号: C07C143/79

    CPC分类号: C07C303/36

    摘要: An improved process for preparing arylsulfonyl isocyanates by phosgenation of arylsulfonamides in the presence of a catalytic quantity of a hydrocarbyl isocyanate and a catalytic quantity of a tertiary amine base. The sulfonyl isocyanates are useful intermediates.

    摘要翻译: 在催化量的烃基异氰酸酯和催化量的叔胺碱的存在下,通过芳基磺酰胺的光气化制备芳基磺酰基异氰酸酯的改进方法。 磺酰基异氰酸酯是有用的中间体。