| 发明名称 |
A PROCESS FOR PREPARING 2-HYDROXYNAPHTHALENE-3,6-DICARBOXYLIC ACID |
| 摘要 |
The present invention relates to a process for preparing 2-hydroxynaphthalene-3,6-dicarboxylic acid which comprises reacting potassium 2-naphtholate and carbon dioxide at a temperature 290.degree.C or higher under a pressure 30kg/cm2 (G) or higher. According to this process, 2-hydroxynaphthalene- 3,6-dicarboxylic acid can be obtained in high yield.
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| 申请公布号 |
CA2241101(C) |
申请公布日期 |
2005.11.22 |
| 申请号 |
CA19972241101 |
申请日期 |
1997.10.16 |
| 申请人 |
KABUSHIKI KAISHA UENO SEIYAKU OYO KENKYUJO |
发明人 |
NARA, SYUNGO;UCHIYAMA, YOSHIRO;KITAYAMA, MASAYA;UENO, RYUZO |
| 分类号 |
C07C51/15;C07C65/11;(IPC1-7):C07C51/15 |
主分类号 |
C07C51/15 |
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