| 发明名称 |
PREPARATION OF PYRAZOLES |
| 摘要 |
<p>of the disclosure: Pyrazoles are prepared by reacting 1,3-dicarbonyl compounds with hydrazines and a less than equivalent amount of acid at a pH of from 0 to 6.9. The pyrazoles obtainable by the novel process are valuable starting materials for the preparation of dyes, crop protection agents and drugs.</p> |
| 申请公布号 |
CA1141390(A) |
申请公布日期 |
1983.02.15 |
| 申请号 |
CA19800352000 |
申请日期 |
1980.05.15 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
ADERS, WOLF-KARLO;MANGOLD, DIETRICH;WAHL, JOSEF;ROTERMUND, GERHARD W. |
| 分类号 |
C07D231/12;C07D231/14;C07D231/16;C07D231/18;(IPC1-7):C07D237/06 |
主分类号 |
C07D231/12 |
| 代理机构 |
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代理人 |
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| 地址 |
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