- 专利标题： Method for producing 2,5-dimethylphenyl acetic acid
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申请号： US10586491申请日： 2005-01-22
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公开(公告)号： US07579500B2公开(公告)日： 2009-08-25
- 发明人: Thomas Himmler
- 申请人： Thomas Himmler
- 申请人地址： US IL Decatur
- 专利权人： Archer-Daniels-Midland Company
- 当前专利权人： Archer-Daniels-Midland Company
- 当前专利权人地址： US IL Decatur
- 代理机构： Sterne, Kessler, Goldstein & Fox P.L.L.C.
- 优先权： DE102004005318 20040204
- 国际申请： PCT/EP2005/000617 WO 20050122
- 国际公布： WO2005/075401 WO 20050818
- 主分类号： C07C51/12
- IPC分类号： C07C51/12
摘要：
The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (III), which is then rearranged to give a mixture of the compounds (IV) and (V), which is then hydrolyzed to 2,5-dimethylphenylacetic acid.
公开/授权文献
- US20080234501A1 Method for Producing 2,5-Dimethylphenyl Acetic Acid 公开/授权日：2008-09-25
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