| 发明名称 |
Method for production of 2, 3, 4, 5-tetrafluorobenzoic acid. |
| 摘要 |
A method for the production of 2,3,4,5-tetrafluorobenzoic acid, which comprises effecting said production by decarbonating 3,4,5,6-tetrafluorophthalic acid in an aqueous medium adjusted to a pH in the range of 0.7 to 2.2 at a temperature in the range of 100 DEG to 220 DEG C. |
| 申请公布号 |
EP0194671(A2) |
申请公布日期 |
1986.09.17 |
| 申请号 |
EP19860103317 |
申请日期 |
1986.03.12 |
| 申请人 |
NIPPON SHOKUBAI KAGAKU KOGYO CO., LTD |
发明人 |
KAIEDA, OSAMU;OKITAKA, ISAO HANADA-SHATAKU 11-40;NAKAMURA, TOSHIAKI;HIROTA, KOICHI |
| 分类号 |
C07C51/38 |
主分类号 |
C07C51/38 |
| 代理机构 |
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代理人 |
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| 地址 |
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