发明名称 |
Processes for the preparation of fluorinated benzoic acids |
摘要 |
An object of the present invention is to provide a commercially advantageous process for preparing a fluoro benzoic acid. The process according to the present invention comprises either alkylating a fluoro benzoic acid of the formulawherein R1 is halogen, or reducing a fluoro benzoic acid of the formulawherein R1 is as defined above and R2 is lower alkyl to thereby produce a fluoro benzoic acid represented by the formulawherein R1 and R2 are as defined above.
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申请公布号 |
US6333431(B1) |
申请公布日期 |
2001.12.25 |
申请号 |
US20010786522 |
申请日期 |
2001.03.06 |
申请人 |
OTSUKA PHARMACEUTICAL CO., LTD. |
发明人 |
HASHIMOTO AKIHIRO;MATSUDA SATOSHI;TAI KUNINORI;TONE HITOSHI;NISHI TAKAO;MINAMIKAWA JUN-ICHI;TOMINAGA MICHIAKI |
分类号 |
C07C51/353;C07C51/377;(IPC1-7):C07C63/04 |
主分类号 |
C07C51/353 |
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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