Process for purifying Mesotrione
    1.
    发明授权
    Process for purifying Mesotrione 有权
    净化中草酮的方法

    公开(公告)号:US07820863B2

    公开(公告)日:2010-10-26

    申请号:US10573723

    申请日:2004-10-01

    IPC分类号: C07C315/00

    摘要: A process for reducing the levels of undesirable impurities in a mesotrione sample is disclosed, said process comprising the steps of: (i) forming a mesotrione enolate solution in an aqueous solvent, (ii) carrying out one or more purification processes, and (iii) crystallizing the purified mesotrione out of solution.

    摘要翻译: 公开了一种用于降低甲基异硫脲样品中不希望的杂质水平的方法,所述方法包括以下步骤:(i)在水性溶剂中形成甲基磺酸烯醇酯溶液,(ii)进行一种或多种纯化方法,和(iii )从溶液中结晶纯化的甲基磺草酮。

    Process for purifying mesotrione
    3.
    发明授权
    Process for purifying mesotrione 有权
    净化甲基磺草酮的方法

    公开(公告)号:US07863482B2

    公开(公告)日:2011-01-04

    申请号:US10598993

    申请日:2005-03-03

    IPC分类号: C07C315/00

    CPC分类号: C07C315/06 C07C317/24

    摘要: A method for reducing the cyanide levels in a mesotrione sample, said method comprising: (i) taking an aqueous solution of the mesotrione sample in an aqueous solvent, (ii) adjusting the pH of said aqueous solution to a value of 9.5 or higher, and (iii) crystallising the mesotrione out of solution is disclosed.

    摘要翻译: 一种降低甲基磺草酮样品中氰化物含量的方法,所述方法包括:(i)将甲基磺草酮样品的水溶液置于含水溶剂中,(ii)将所述水溶液的pH调节至9.5或更高的值, 并且(iii)从溶液中析出甲磺草酮。

    Process For the Preparation of Polymorphs of Mesotrione
    4.
    发明申请
    Process For the Preparation of Polymorphs of Mesotrione 审中-公开
    制备中三唑多晶型物的方法

    公开(公告)号:US20080194880A1

    公开(公告)日:2008-08-14

    申请号:US11574205

    申请日:2005-08-03

    IPC分类号: C07C317/14

    摘要: A process for selectively controlling the crystallisation of thermodynamically stable Form (1) or kinetically stable Form (2) polymorphs of mesotrione from an aqueous mesotrione solution, said method comprising adjusting the pH of the mesotrione solutions to a value wherein said thermodynamically stable Form (1) or kinetically stable Form (2) mesotrione is ultimately obtained is disclosed.

    摘要翻译: 选择性地控制来自甲基磺草酮水溶液的甲基磺草酮的热力学稳定的形式(1)或动力学稳定的形式(2)多晶型物的结晶的方法,所述方法包括将甲基磺草酮溶液的pH调节至其中所述热力学稳定形式 )或动力学稳定性公开了最终获得的形式(2)甲基磺草酮。