| 发明名称 |
Process for the preparation of benzene sulfonamides. |
| 摘要 |
Multi-step process for the preparation of benzene sulphonamides of the formula …<IMAGE>… in which R represents 3,3-difluorobutyl or 3,3-difluoro-1-butenyl. …<??>The benzenesulphonamides which can be prepared by the process according to the invention are intermediates for the preparation of herbicidally active sulphonylureas. |
| 申请公布号 |
EP0512953(B1) |
申请公布日期 |
1995.06.07 |
| 申请号 |
EP19920810315 |
申请日期 |
1992.04.29 |
| 申请人 |
CIBA-GEIGY AG |
发明人 |
MEYER, WILLY;SIEGRIST, URS |
| 分类号 |
B01J23/40;C07B61/00;C07C303/38;C07C303/40;C07C309/44;C07C309/86;C07C311/16 |
主分类号 |
B01J23/40 |
| 代理机构 |
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