| 发明名称 |
Preparation of 7-chloroquinoline-8-carboxylic acids |
| 摘要 |
7-Chloroquinoline-8-carboxylic acids of the formula (I) <IMAGE> (I) where R is hydrogen, chlorine or methyl, are prepared by direct oxidation of the corresponding 8-methylqunoline compound with nitric acid or nitrogen oxide in the presence of sulfuric acid and a heavy metal catalyst.
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| 申请公布号 |
US5006659(A) |
申请公布日期 |
1991.04.09 |
| 申请号 |
US19900464568 |
申请日期 |
1990.01.16 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HAGEN, HELMUT;DUPUIS, JACQUES;EILINGSFELD, HEINZ |
| 分类号 |
C07D215/48 |
主分类号 |
C07D215/48 |
| 代理机构 |
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代理人 |
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| 主权项 |
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