发明授权
- 专利标题: Process for purifying mesotrione
- 专利标题(中): 净化甲基磺草酮的方法
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申请号: US10598993申请日: 2005-03-03
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公开(公告)号: US07863482B2公开(公告)日: 2011-01-04
- 发明人: Alan Henry Benke , Julie Marie Wichert
- 申请人: Alan Henry Benke , Julie Marie Wichert
- 申请人地址: US NC Greensboro
- 专利权人: Syngenta Crop Protection, Inc.
- 当前专利权人: Syngenta Crop Protection, Inc.
- 当前专利权人地址: US NC Greensboro
- 代理商 William A. Teoli, Jr.
- 优先权: GB0406894.6 20040326
- 国际申请: PCT/EP2005/002230 WO 20050303
- 国际公布: WO2005/092846 WO 20051006
- 主分类号: C07C315/00
- IPC分类号: C07C315/00
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.
公开/授权文献
- US20080039661A1 Process For Purifying Mesotrione 公开/授权日:2008-02-14
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