发明名称 VERFAHREN ZUR HERSTELLUNG VON BENZOLSULFONAMIDEN.
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 AT123488(T) 申请公布日期 1995.06.15
申请号 AT19920810315T 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
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