| 发明名称 |
METHOD FOR PRODUCING SUBSTITUTED PYRAZOLES |
| 摘要 |
The invention relates to a method for producing pyrazole derivatives by reacting carbonyl compounds R1-C(O)-CH(R2)-CH2R3 with hydrazine, its hydrate or its salts in 30 to 100 wt per ct sulphuric acid in the presence of catalytic quantities of iodine or an iodine compound.
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| 申请公布号 |
CA2294023(A1) |
申请公布日期 |
1998.12.30 |
| 申请号 |
CA19982294023 |
申请日期 |
1998.06.22 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
MERKLE, HANS RUPERT;FRETSCHNER, ERICH |
| 分类号 |
C07D231/12;C07D;C07D231/10;(IPC1-7):C07D231/12 |
主分类号 |
C07D231/12 |
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