IMPACT OF TRACE ELEMENTS IN THE GRIGNARD REACTION

    公开(公告)号:US20220251050A1

    公开(公告)日:2022-08-11

    申请号:US17442862

    申请日:2020-03-25

    申请人: BASF SE

    IPC分类号: C07D251/20

    摘要: The present invention relates to an improved process for preparing 2,4-dichloro-6-(4-methoxyphenyl)-1,3,5-triazine (DICAT) comprising reacting 4-bromoanisole with magnesium, and reacting the resulting Grignard reagent with cyanuric chloride, wherein the magnesium comprises additional metals as impurities in an amount of less than 0.027% by weight, based on the total weight of the magnesium.

    Continuous method for producing ortho-substituted anilines in a flow reactor
    57.
    发明授权
    Continuous method for producing ortho-substituted anilines in a flow reactor 有权
    在流动反应器中生产邻位取代的苯胺的连续方法

    公开(公告)号:US09527808B2

    公开(公告)日:2016-12-27

    申请号:US14427471

    申请日:2013-09-12

    摘要: Continuous process for preparing ortho-substituted anilines of the formula in a flow reactor in the presence of a nitrogen base not having an NH group, and multistage process for preparing herbicidal N-alkyl-N-[2-(1,3,5-triazin-2-ylcarbonyl)-phenyl]alkansulphonamides of the formula (4-1) wherein the continuous process for preparing ortho-substituted anilines of the formula (4) in a flow reactor constitutes the first process step of the multistage process for preparing the herbicidal active ingredients of the formula (4-1).

    摘要翻译: 用于在流动反应器中生产邻位取代的苯胺的连续方法在不具有NH基团的氮基的存在下,在流动反应器中制备邻位取代的苯胺的连续方法,以及用于制备除草N-烷基 - 式(4-1)的N- [2-(1,3,5-三嗪-2-基羰基) - 苯基]烷磺酰胺,其中在流动反应器中制备式(4)的邻位取代的苯胺的连续方法 构成了用于制备式(4-1)的除草活性成分的多级方法的第一种方法步骤。