发明授权
US5663118A Fluoromethylsulfonyl-substituted pyridylsulfonylureas as herbicides,
process for their preparation, and their use
失效
氟甲基磺酰基取代的吡啶基磺酰脲作为除草剂，其制备方法及其应用
- 专利标题： Fluoromethylsulfonyl-substituted pyridylsulfonylureas as herbicides, process for their preparation, and their use
- 专利标题（中）： 氟甲基磺酰基取代的吡啶基磺酰脲作为除草剂，其制备方法及其应用
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申请号： US224324申请日： 1994-04-07
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公开(公告)号： US5663118A公开(公告)日： 1997-09-02
- 发明人: Heinz Kehne , Lothar Willms , Klaus Bauer , Hermann Bieringer
- 申请人： Heinz Kehne , Lothar Willms , Klaus Bauer , Hermann Bieringer
- 申请人地址： DEX Berlin
- 专利权人： Hoechst Schering AgrEvo GmbH
- 当前专利权人： Hoechst Schering AgrEvo GmbH
- 当前专利权人地址： DEX Berlin
- 优先权： DEX4311787.2 19930409
- 主分类号： A01N47/36
- IPC分类号： A01N47/36 ; C07D401/12 ; C07D521/00 ; A01N43/54
摘要：
Fluoromethylsulfonyl-substituted pyridylsulfonylureas as herbicides, process for their preparation, and their use.Compounds of the formula (II) or salts thereof, ##STR1## R.sup.1 is hydrogen, methyl or ethyl, Z is CH or N and one of the radicals X and Y is halogen, (C.sub.1 -C.sub.2)alkyl, (C.sub.1 -C.sub.2)alkoxy, OCHF.sub.2 or CF.sub.3 and the other one of the radicals X and Y is (C.sub.1 -C.sub.2)alkyl, (C.sub.1 -C.sub.2)alkoxy or OCHF.sub.2, are suitable as selective herbicides for use in crops.They can be prepared by the process as claimed in claim 4, in which, in some cases, intermediates of the formula (III) are employed: ##STR2##
公开/授权文献
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