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US 4,394,506 AGranted
Agricultural sulfonamides
AssigneeE. I. Du Pont de Nemours and Company
InventorGeorge Levitt
Life of this patent
Estimating the term…
Abstract
N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulf onamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
Claims8
A compound of the formula ##STR629## wherein Q is O;
- W is O;
- R is C.sub.1 -C.sub.4 alkyl;
- R.sub.2 is H;
- R.sub.3 is H;
- R.sub.4 is H;
- R.sub.5 is H or CH.sub.3 ;
- ##STR630## X is H, CH.sub.3, OCH.sub.3 or OC.sub.2 H.sub.5 ;
- Y is H, Cl, CH.sub.3, OCH.sub.3 or OC.sub.2 H.sub.5 ;
- and
- Z is CH.
7 more elements
Dependencies are inferred from the claim text.