Claims
- 1. A sulfonylurea of formula I ##STR12## wherein E is the methine bridge,
- Z is oxygen or sulfur,
- R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sup.5 and R.sup.6 are each independently hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.3 -C.sub.6 dialkoxyalkyl, C.sub.1 -C.sub.4 haloalkylthio, C.sub.2 -C.sub.4 -alkoxyalkyl, C.sub.3 -C.sub.6 -cycloalkyl or --NR.sup.12 R.sup.13,
- G is a ##STR13## R.sup.1 is hydrogen, halogen, nitro, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, trifluoromethoxy, difluoromethoxy, C.sub.1 -C.sub.4 alkyl carbonyl or --COOR.sup.14,
- R.sup.3 is a ##STR14## group, n is 0, 1 or 2,
- R.sup.8 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.1 -C.sub.4 haloalkyl, nitro, --COOR.sup.14, C.sub.1 -C.sub.4 haloalkoxy, --O--CR.sup.15 R.sup.16 --COOR.sup.14 or --O--CR.sup.15 R.sup.16 --CN,
- R.sup.9 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkoxyalkyl oder C.sub.2 -C.sub.4 alkoxyalkoxy,
- R.sup.10 and R.sup.11 are each independently hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sup.12 and R.sup.13 are each independently hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sup.14 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl, or is C.sub.1 -C.sub.4 alkyl which is substituted by C.sub.1 -C.sub.4 alkoxy, halogen or phenyl, and
- R.sup.15 and R.sup.16 are each independently hydrogen or C.sub.1 -C.sub.4 alkyl, or a salt thereof.
- 2. A compound according to claim 1, wherein Z is oxygen.
- 3. A compound according to claim 1, wherein R.sup.1 is hydrogen, Cl, F, CH.sub.3, C.sub.2 H.sub.5, CH.sub.3 O, CF.sub.3 or CH.sub.3 CO.
- 4. A compound according to claim 1, wherein R.sup.5 and R.sup.6 together contain not more than 4 carbon atoms and R.sup.4 is hydrogen.
- 5. A compound according to claim 1, wherein G is 3-phenylpyridin-2-yl.
- 6. A compound according to claim 1, wherein Z is oxygen, R.sup.4 is hydrogen and G is 3-phenylpyridin-2-yl and R.sup.5 and R.sup.6 together contain not more than 4 carbon atoms.
- 7. N-(3-Phenylpyridin-2-ylsulfonyl)-N'-(4,6-dimethoxypyrimidin-2-yl)urea according to claim 1.
- 8. A herbicidal and plant growth inhibiting composition which contains, as active ingredient, at least one substituted sulfonylurea of formula I according to claim 1, together with carriers and/or other adjuvants.
- 9. A method of controlling undesired plant growth, which method comprises applying to the plants or to the locus thereof an effective amount of a compound of formula I according to claim 1, or of a composition containing such a compound.
- 10. A method of inhibiting plant growth, which method comprises applying to the plants or to the locus thereof an effective amount of a compound of formula I according to claim 1, or of a composition containing such a compound.
- 11. A method of influencing plant growth for increasing yield, which method comprises applying to the plants or to the locus thereof an effective amount of a compound of formula I according to claim 1, or of a composition containing such a compound.
- 12. A method according to claim 9 of selectively controlling weeds pre- or postemergence in crops of useful plants.
- 13. A method according to claim 10 of suppressing plant growth beyond the 2-leaf stage, which method comprises applying the active ingredient preemergence.
- 14. A method according to claim 12, wherein the crops are rice crops.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1822/84 |
Apr 1984 |
CHX |
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CROSS REFERENCE TO RELATED APPLICATIONS
This a a continuation-in-part of application Ser. No. 719,614 pending filed on Apr. 3, 1985.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4668279 |
Rorer |
May 1987 |
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Foreign Referenced Citations (5)
Number |
Date |
Country |
0071441 |
Feb 1983 |
EPX |
0096593 |
Dec 1983 |
EPX |
3105453 |
Oct 1982 |
DEX |
3225471 |
Jan 1984 |
DEX |
580608 |
Oct 1976 |
CHX |
Non-Patent Literature Citations (1)
Entry |
Chemical Abstracts 99, 53793m (1983). |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
719614 |
Apr 1985 |
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