| 发明名称 |
Preparation of 2-(chloro, bromo or nitro)-4-(alkyl-sulfonyl)benzoic acids and intermediates |
| 摘要 |
A process for the preparation of 2-(chloro, bromo or nitro)-4-(alkylsulfonyl)benzoic acid and to intermediates used in the process.
|
| 申请公布号 |
US5157150(A) |
申请公布日期 |
1992.10.20 |
| 申请号 |
US19910641242 |
申请日期 |
1991.01.15 |
| 申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BROWN, RICHARD W. |
| 分类号 |
C07C309/89;C07C313/04;C07C315/00;C07C317/44 |
主分类号 |
C07C309/89 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
