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US 4,397,679 AGranted
Herbicidal o-sulfamylmethylbenzenesulfonamides
AssigneeE. I. Du Pont de Nemours and Company
InventorRichard F. Sauers
Life of this patent
Estimating the term…
Abstract
The compounds are of the class of N-[(substituted pyrimidin-2-yl)aminocarbonyl]-2-(sulfonylmethyl)benzenesulfonamides, useful as preemergent or postemergent herbicides or plant growth regulants.
Claims22
A compound of the formula:
- ##STR36## wherein L is SO.sub.2 NR.sub.3 R.sub.4 ;
- R is H, F, Cl, Br, NO.sub.2, CF.sub.3, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy;
- R.sub.1 is H or C.sub.1 -C.sub.4 alkyl;
- R.sub.2 is H or CH.sub.3 ;
- R.sub.3 is C.sub.1 -C.sub.4 alkyl or OCH.sub.3 ;
- R.sub.4 is C.sub.1 -C.sub.4 alkyl;
- R.sub.8 is H, CH.sub.3 or OCH.sub.3 ;
- A is ##STR37## W is O or S;
- X is H, Cl, Br, CH.sub.3, CH.sub.2 CH.sub.3, C.sub.1 -C.sub.3 alkoxy, CF.sub.3, SCH.sub.3 or CH.sub.2 OCH.sub.3 ;
- Y is CH.sub.3 or OCH.sub.3 ;
- Z is CH, CCl, CBr, CCN, CCH.sub.3, CCH.sub.2 CH.sub.3, CCH.sub.2 CH.sub.2 Cl or CCH.sub.2 CH.dbd.CH.sub.2 ;
- and their agriculturally suitable salts;
- provided that:
- (1) when R.sub.3 is OCH.sub.3, then R.sub.4 is CH.sub.3 ;
- (2) the total number of carbon atoms of R.sub.3 and R.sub.4 is five or less;
- and
- (3) when W is S, then R.sub.8 is H.
14 more elements
A compound selected from:
- ##STR39## wherein L is SO.sub.2 NR.sub.3 R.sub.4 ;
- R is H, F, Cl, Br, NO.sub.2, CF.sub.3, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy;
- R.sub.1 is H or C.sub.1 -C.sub.4 alkyl;
- R.sub.2 is H or CH.sub.3 ;
- R.sub.3 is C.sub.1 -C.sub.4 alkyl or OCH.sub.3 ;
- R.sub.4 is C.sub.1 -C.sub.4 alkyl;
- and
- Z is CH;
- provided that:
- (1) when R.sub.3 is OCH.sub.3, then R.sub.4 is CH.sub.3 ;
- and
- (2) the total number of carbon atoms of R.sub.3 and R.sub.4 is five or less.
9 more elements
Dependencies are inferred from the claim text.