| 发明名称 |
PROCESS FOR THE PREPARATION OF AROMATIC NITRILES. |
| 摘要 |
<p>The invention concerns a process for preparing substituted aromatic nitriles, in particular liquid-crystal nitriles of the formulae (I) or (II), characterized in that aromatic carboxylic acids or amids thereof are reacted with gaseous ammonia in the presence of a dehydration catalyst.</p> |
| 申请公布号 |
EP0435989(B1) |
申请公布日期 |
1994.09.14 |
| 申请号 |
EP19900910710 |
申请日期 |
1990.07.07 |
| 申请人 |
MERCK PATENT GMBH |
发明人 |
PAULUTH, DETLEF;STAHL, KLAUS-PETER |
| 分类号 |
B01J21/04;B01J21/16;B01J27/16;B01J27/24;B01J31/04;C07B61/00;C07C253/20;C07C253/22;C07C255/50;C07C255/52;C07C255/54;C07C255/57;C07D213/84;C07D239/26;C07D239/28;(IPC1-7):C07C255/49;C07D213/57 |
主分类号 |
B01J21/04 |
| 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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