发明授权
US5714436A N-heteroaryl-N'-(pyrid-2-ylsulfonyl)ureas, processes for their
preparation, and their use as herbicides and plant growth regulators
失效
N-杂芳基-N' - （吡啶-2-基磺酰基）脲，其制备方法及其作为除草剂和植物生长调节剂的用途
- 专利标题： N-heteroaryl-N'-(pyrid-2-ylsulfonyl)ureas, processes for their preparation, and their use as herbicides and plant growth regulators
- 专利标题（中）： N-杂芳基-N' - （吡啶-2-基磺酰基）脲，其制备方法及其作为除草剂和植物生长调节剂的用途
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申请号： US592393申请日： 1996-03-22
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公开(公告)号： US5714436A公开(公告)日： 1998-02-03
- 发明人: Klaus Haaf , Heinz Kehne , Klaus Bauer , Hermann Bieringer
- 申请人： Klaus Haaf , Heinz Kehne , 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： DEX4328397.7 19930824; DEX4335587.0 19931019
- 主分类号： A01N47/36
- IPC分类号： A01N47/36 ; C07D213/76 ; C07D521/00
摘要：
Compounds of the formula (I) or salts thereof ##STR1## in which R.sup.1 -R.sup.4, W, A, n and m are as defined in claim 1, for example R.sup.1 and R.sup.2 are H, (substituted) alkyl, (substituted) alkenyl or alkynyl, (substituted) cycloalkyl, (substituted) aryl or acyl and A is (substituted) pyrimidinyl or triazinyl are suitable as selective sulfonylurea herbicides and plant growth regulators. (I) is prepared analogously to known processes via intermediates, some of which are novel, for example via suitably substituted pyridylsulfonamides (II) and N-tert-butylsulfonamides (VIII) as claimed in claim 5.
公开/授权文献
- US5162910A Synchronizing circuit 公开/授权日：1992-11-10
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