发明名称 |
Process for introducing a carboxyl group to an aromatic carboxylic acid or a derivative thereof |
摘要 |
Disclosed is a process for introducing a carboxyl group to an aromatic carboxylic acid or a derivative thereof, which comprises reacting a starting aromatic carboxylic acid, such as a benzoic acid, a biphenylcarboxylic acid, a naphthalenecarboxylic acid, a diphenylcarboxylic acid, or a derivative thereof, with a carbon tetrahalide in the presence of a cyclodextrin and an alkali metal hydroxide, thereby introducing a carboxyl group to the aromatic ring of the starting aromatic carboxylic acid or the derivative thereof in substitution for a hydrogen atom bonded thereto. By the process of the present invention, a desired aromatic polycarboxylic acid or a derivative thereof can be easily obtained with high selectivity.
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申请公布号 |
US5319134(A) |
申请公布日期 |
1994.06.07 |
申请号 |
US19920966448 |
申请日期 |
1992.10.26 |
申请人 |
HIDEFUMI HIRAI |
发明人 |
HIRAI, HIDEFUMI;TERAKADO, RIKINORI;MIHORI, HISASHI;NAKAMURA, TSUTOMU;SAITO, KAZUHIRO |
分类号 |
B01J23/72;B01J23/825;B01J23/835;B01J23/84;B01J27/053;B01J31/04;C07B61/00;C07C51/00;C07C51/093;C07C63/15;C07C63/333;C07C63/38;C07C67/313;C07C69/76;C07C227/02;C07C229/52;C07C245/08;C07C317/44;C07C323/62;(IPC1-7):C07C51/00 |
主分类号 |
B01J23/72 |
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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