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US 4,378,991 AGranted
Herbicidal o-aryl or alkarylsulfonylureas
AssigneeE. I. Du Pont de Nemours and Company
InventorGeorge Levitt
Life of this patent
Estimating the term…
Abstract
N-(heterocyclicaminocarbonyl)-o-(aryl or alkaryl)benzenesulfonamides, such as N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-[1,1'-biphenyl]-2-sulf onamide are useful as preemergent or postemergent herbicides or as plant growth regulants.
Claims27
A compound selected from ##STR1166## n is 0 or 1;
- R.sub.1 is H, F, Cl, Br, NO.sub.2, CF.sub.3, C.sub.1 -C.sub.4 alkyl, OCF.sub.3 or C.sub.1 -C.sub.4 alkoxy;
- R.sub.2 and R.sub.3 are selected independently from H and CH.sub.3 ;
- R.sub.4 is H, C.sub.1 -C.sub.3 alkyl, F, Cl, Br, CF.sub.3, OCF.sub.3 or C.sub.1 -C.sub.3 alkoxy;
- R.sub.5 is CH.sub.3, Cl, Br or H;
- A is ##STR1167## X is H, CH.sub.3, OCH.sub.3, OCH.sub.2 CH.sub.3, OCH.sub.2 CF.sub.3, CH.sub.2 OCH.sub.3 or Cl;
- Y is CH.sub.3, OCH.sub.3 or OCH.sub.2 CH.sub.3 ;
- Z is N, and
- Q is CH.sub.2 or O;
- provided that the total number of carbons in R is less than or equal to nine.
6 more elements
Dependencies are inferred from the claim text.