12-Substituted-12H-dibenzo(D,G)(1,3)dioxocin-6-carboxylic acids, herbicidal compositions, and a method of controlling undesirable vegetation
    2.
    发明公开
    12-Substituted-12H-dibenzo(D,G)(1,3)dioxocin-6-carboxylic acids, herbicidal compositions, and a method of controlling undesirable vegetation 失效
    12位取代12H - 二苯并(D,G)(1,3)dioxocin -6-羧酸,除草混合物和用于影响不期望植被的方法。

    公开(公告)号:EP0403026A1

    公开(公告)日:1990-12-19

    申请号:EP90201541.1

    申请日:1990-06-14

    申请人: DowElanco

    CPC分类号: C07D321/12 A01N43/24

    摘要: Dibenzo[d,g][1,3]dioxocin-6-carboxylic acids substituted by methyl or ethyl or a moiety -CH₂CH₂- at the 12-position and optionally substituted at other positions, such as methyl 4′-chlorospiro(cyclopropane-­1,12′(12′H)-dibenzo[d,g][1,3]dioxocin)-6′-carboxylic acid, and their agriculturally acceptable esters, amides, and salts are useful for the control of undesirable vegetation. The 1,1-diarylcyclopropane intermediates required for the spirocyclopropane compounds can be prepared from appropriately substituted 1,1-diarylethene procursors by reaction with phenylthiomethyl lithium reagent.

    摘要翻译: 二苯并[d,G]由甲基或乙基或结构部分-CH 2 CH 2在在其它位置的12位和任选substituiertem,作为检查甲基4分钟-chlorospiro([1,3] dioxocin -6-羧酸环丙烷substituiertem 1.12分钟(12分钟1H) - 二苯并[d,克] [1,3] dioxocin)-6分钟 - 羧酸及其农业上可接受的酯,酰胺和盐对于不期望植被的控制有用。 为螺环环丙烷化合物所需的1.1-diarylcyclopropane中间体可制备通过与苯硫基甲基锂试剂反应适当地substituiertem 1.1二芳基乙烯procursors。