Back to results
US 4,302,241 AGranted
Agricultural sulfonamides
AssigneeE. I. Du Pont de Nemours and Company
InventorGeorge Levitt
Life of this patent
Estimating the term…
Abstract
This invention relates to novel N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted by two carboxyl radicals. The compounds have utility as herbicides.
Claims19
A compound selected from ##STR111## wherein Q is O or ##STR112## W is O or S;
- when Q is O, then R is C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, CH.sub.2 CH.sub.2 Cl or CH.sub.2 CH.sub.2 OCH.sub.3 ;
- when Q is ##STR113## then R is H, C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.4 alkenyl;
- R.sub.1 is H, C.sub.1 -C.sub.4 alkyl, and R and R.sub.1 can be taken together to form --(CH.sub.2).sub.4, --(CH.sub.2).sub.5 --, and --CH.sub.2 CH.sub.2 O--CH.sub.2 CH.sub.2 --;
- X is CH.sub.3, CH.sub.3 O, CH.sub.2 CH.sub.3 O or Cl;
- Y is CH.sub.3, CH.sub.3 O(CH.sub.2).sub.n, where n' is 0, 1 or 2, CH.sub.3 CH.sub.2 O, or R.sup.2 O.sub.2 CCHR.sup.1 O where R.sup.1 is H or CH.sub.3 and R.sup.2 is H or C.sub.1 -C.sub.3 alkyl;
- Z is CH, or C--CH.sub.3 ;
- with the proviso that when Q is ##STR114## then the floating ##STR115## must be in the 3 position.
4 more elements
Dependencies are inferred from the claim text.