发明申请
- 专利标题： Process For the Preparation of Polymorphs of Mesotrione
- 专利标题（中）： 制备中三唑多晶型物的方法
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申请号： US11574205申请日： 2005-08-03
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公开(公告)号： US20080194880A1公开(公告)日： 2008-08-14
- 发明人: Stephen Dawson , Neil George , Ian Kevin Jones , Julie Marie Wichert
- 申请人： Stephen Dawson , Neil George , Ian Kevin Jones , Julie Marie Wichert
- 优先权： GB0419075.7 20040826
- 国际申请： PCT/GB0505/003069 WO 20050803
- 主分类号： C07C317/14
- 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.
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