发明公开
- 专利标题： Herbicidal sulfonamides
- 专利标题（中）： 除草剂磺酰胺
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申请号： EP86304470申请日： 1986-06-11
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公开(公告)号： EP0205348A3公开(公告)日： 1987-06-24
- 发明人: Artz, Steven Powell
- 申请人： E.I. DU PONT DE NEMOURS AND COMPANY
- 专利权人： E.I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E.I. DU PONT DE NEMOURS AND COMPANY
- 优先权： US743955 19850612; US860229 19860512
- 主分类号： C07D239/47
- IPC分类号： C07D239/47 ; C07D251/16 ; C07D239/52 ; C07F09/65 ; C07D239/42 ; C07D251/46 ; C07D239/48 ; C07D251/22 ; C07D405/04 ; C07D411/04 ; C07D405/12
摘要：
Sulfonylurea derivatives of the formula
wherein
E is CH 2 or a single bond; W is 0 or S; R is H or CH 3 ; R, is halogen, nitro or a specified organic group; R 2 is an organic substituent; A is a mono- or bicyclic heterocyclic group, e.g. pyrimidinyl or triazinyl; and their agriculturally suitable salts exhibit potent herbicidal activity. Some also show a plant growth regulant effect. The novel compounds may be made by a variety of routes, e.g. by reacting an appropriate benzenesulfonyl isocyanate or isothiocyanate with the appropriate heterocyclic amine.
wherein
E is CH 2 or a single bond; W is 0 or S; R is H or CH 3 ; R, is halogen, nitro or a specified organic group; R 2 is an organic substituent; A is a mono- or bicyclic heterocyclic group, e.g. pyrimidinyl or triazinyl; and their agriculturally suitable salts exhibit potent herbicidal activity. Some also show a plant growth regulant effect. The novel compounds may be made by a variety of routes, e.g. by reacting an appropriate benzenesulfonyl isocyanate or isothiocyanate with the appropriate heterocyclic amine.
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