| 发明名称 |
PROCESS FOR PRODUCING 2-HYDROXYNAPHTHALENE-3,6-DICARBOXYLIC ACID |
| 摘要 |
<p>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 DEG C or higher under a pressure 30kg/cm<2> (G) or higher. According to this process, 2-hydroxynaphthalene-3,6-dicarboxylic acid can be obtained in high yield.</p> |
| 申请公布号 |
EP0889022(A1) |
申请公布日期 |
1999.01.07 |
| 申请号 |
EP19970944132 |
申请日期 |
1997.10.16 |
| 申请人 |
KABUSHIKIKAISHA UENO SEIYAKU OYO KENKYUJO |
发明人 |
UENO, RYUZO;KITAYAMA, MASAYA;UCHIYAMA, YOSHIRO;NARA, SYUNGO |
| 分类号 |
C07C51/15;C07C65/11;(IPC1-7):C07C65/11 |
主分类号 |
C07C51/15 |
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