发明名称 |
PROCESS FOR PRODUCING 1,2-DIALKOXY-3-FLUOROBENZENE |
摘要 |
<p>The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene.</p> |
申请公布号 |
EP2055692(A4) |
申请公布日期 |
2010.07.07 |
申请号 |
EP20060783042 |
申请日期 |
2006.08.25 |
申请人 |
ASAHI GLASS CO., LTD.;CHARNA CHEMICALS LTD. |
发明人 |
QIU, MINGJIAN;ZHANG, WEI;CHEN, ZHAOHUI;ZHANG, CHUNSHAN;ZHANG, YALI |
分类号 |
C07C37/62;C07C39/26;C07C41/09;C07C41/26;C07C43/225;C07C43/23;C07C309/42 |
主分类号 |
C07C37/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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