N-pyrazolyl-1,2,4-triazolo(1,5-c)pyrimidine-2-sulfonamide herbicides
    3.
    发明公开
    N-pyrazolyl-1,2,4-triazolo(1,5-c)pyrimidine-2-sulfonamide herbicides 失效
    N-吡唑基-1,2,4-三唑并(1,5-c)的嘧啶-2-磺酰胺,Herbizide。

    公开(公告)号:EP0537423A1

    公开(公告)日:1993-04-21

    申请号:EP92112168.7

    申请日:1992-07-16

    申请人: DowElanco

    IPC分类号: C07D487/04 A01N43/90

    CPC分类号: C07D487/04 A01N43/90

    摘要: N-(3-, 4-, and 5-)-pyrazolyl-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamide compounds of formula (I),

    substituted on the pyrimidine ring with an alkoxy group and on the pyrazine ring, such as N-(4-bromo-1-methylpyrazol-3-yl)-7-chloro-5-methoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamide, were prepared from alkoxy substituted 1,2,4-triazolo[1,5-c] pyrimidine-2-sulfonyl halides by condensation with substituted (3-, 4-, and 5-aminopyrazoles in the presence of a pyridine base and a catalytic amount of dimethyl sulfoxide. The compounds were found to possess general and, in some cases, selective pre- and postemergence herbicidal activity.

    摘要翻译: 式(I)的N-(3-,4-和5-) - 吡唑基-1,2,4-三唑并[1,5-c]嘧啶-2-磺酰胺化合物,在嘧啶环上被烷氧基取代的CHEM 并且在吡嗪环上,例如N-(4-溴-1-甲基吡唑-3-基)-7-氯-5-甲氧基-1,2,4-三唑并[1,5-c]嘧啶-2-磺酰胺, 通过与吡啶碱和催化量的二甲亚砜的存在下的取代的(3-,4-和5-氨基吡唑)缩合,由烷氧基取代的1,2,4-三唑并[1,5-c]嘧啶-2-磺酰卤。 发现这些化合物具有一般的,在某些情况下具有选择性的芽前和芽后除草活性。