Claims
- 1. An N-(3,4-dihydro-2,2-dioxo-1,2-benzoxathiin-8-ylsulfonyl)-N'-triazinylurea of formula I ##STR19## wherein R.sup.1 is hydrogen, halogen, nitro, 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 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkylsulfinyl, C.sub.1 -C.sub.4 alkylsulfonyl or C.sub.2 -C.sub.5 alkoxyalkoxy,
- R.sup.2 and R.sup.3 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sup.4 is hydrogen, methyl or ethyl,
- W is oxygen or sulfur, and
- A is a radical ##STR20## in which formulae X.sup.1, X.sup.2 and Y.sup.1 are each independently halogen, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, dimethylamino, methylamino, ethylamino, amino or C.sub.2 -C.sub.4 alkoxyalkyl,
- E.sup.1 is nitrogen,
- Y.sup.2 is cyclopropyl, dimethoxymethyl, diethoxymethyl, ##STR21## or salt thereof; with the proviso that R.sup.3 is C.sub.1 -C.sub.4 alkyl if A is A2.
- 2. A compound according to claim 1, wherein R.sup.1 and R.sup.2 are hydrogen and R.sup.3 is methyl.
- 3. A compound according to claim 1, wherein W is oxygen.
- 4. A compound according to claim 1, wherein R.sup.4 is hydrogen.
- 5. A compound according to claim 1, wherein W is oxygen and R.sup.4 is hydrogen.
- 6. A compound according to claim 1, wherein W is oxygen, R.sup.4 is hydrogen and A is the group A1, in which X.sup.1 is C.sub.1 -C.sub.4 alkyl.
- 7. A compound according to claim 1, wherein W is oxygen, R.sup.4 is hydrogen and A is the group A2, in which Y.sup.2 is cyclopropyl.
- 8. N-(3,4-Dihydro-3-methyl-2,2-dioxo-1,2-benzoxathiin-8-yl-sulfonyl)-N'-(4,6-dimethyl-1-oxo-1,3,5-triazin-2-yl)urea according to claim 1.
- 9. N-(3,4-dihydro-3-methyl-2,2-dioxo-1,2-benzoxathiin-8-ylsulfonyl)-N'-(4-cyclopropyl-6-methoxy-1,3,5-triazin-2-yl)-urea according to claim 1.
- 10. A herbicidal and plant growth inhibiting composition which contains, as active ingredient, an effective amount of a substituted sulfonylurea of formula I according to claim 1, together with a carrier or other adjuvant.
- 11. 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.
- 12. 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.
- 13. 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.
- 14. A method according to claim 11 of selectively controlling weeds pre- or postemergence in crops of useful plants.
- 15. A method according to claim 12 of suppressing plant growth beyond the 2-leaf stage, which method comprises applying the active ingredient preemergence.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2566/85 |
Jun 1985 |
CHX |
|
894/86 |
Mar 1986 |
CHX |
|
Parent Case Info
This is a divisional of application Ser. No. 872,799, filed on June 11, 1986, now U.S. Pat. No. 4,759,791.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4589911 |
Ehrenfreund et al. |
May 1986 |
|
4620870 |
Pasteris |
Nov 1986 |
|
4634465 |
Ehrenfreund et al. |
Jan 1987 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
872799 |
Jun 1986 |
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