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US 4,678,500 AGranted
Herbicidal 2,6-disubstituted benzylsulfonamides and benzenesulfamates
AssigneeE. I. Du Pont de Nemours and Company
InventorsJames V. Hay, George Levitt
Life of this patent
Estimating the term…
Abstract
This invention relates to novel disubstituted benzylsulfonamides and benzenesulfamates, agriculturally suitable compositions thereof and a method of their use as preemergent or postemergent herbicides or plant growth regulants.
Claims21
A compound of the formula:
- ##STR26## wherein R is H or CH.sub.3 ;
- R.sub.1 is CO.sub.2 R.sub.4, SO.sub.2 NR.sub.5 R.sub.6, SO.sub.2 N(OCH.sub.3)CH.sub.3, SR.sub.7, SO.sub.2 R.sub.7, NO.sub.2, OCF.sub.2 H, OSO.sub.2 R.sub.8 or C(O)NR.sub.11 R.sub.12 ;
- R.sub.2 is H, CO.sub.2 R.sub.4, SO.sub.2 NR.sub.5 R.sub.6, SO.sub.2 N(OCH.sub.3)CH.sub.3, SR.sub.7, SO.sub.2 R.sub.7, NO.sub.2, OCF.sub.2 H or OSO.sub.2 R.sub.8 ;
- R.sub.3 is H, CH.sub.3, OCH.sub.3, Cl or F;
- R.sub.4 is C.sub.1 -C.sub.3 alkyl, CH.sub.2 CH.dbd.CH.sub.2, CH.sub.2 CH.sub.2 Cl or CH.sub.2 CH.sub.2 OCH.sub.3 ;
- R.sub.5 and R.sub.6 are independently C.sub.1 -C.sub.2 alkyl;
- R.sub.7 is C.sub.1 -C.sub.3 alkyl, CF.sub.2 H or CF.sub.3 ;
- R.sub.8 is C.sub.1 -C.sub.3 alkyl, CF.sub.3 or N(CH.sub.3).sub.2 ;
- R.sub.9 is CO.sub.2 R.sub.4, SO.sub.2 NR.sub.5 R.sub.6, SO.sub.2 N(OCH.sub.3)CH.sub.3, SR.sub.7, SO.sub.2 R.sub.7, OCF.sub.2 H or OSO.sub.2 R.sub.8 ;
- R.sub.10 is CO.sub.2 R.sub.4, SO.sub.2 NR.sub.5 R.sub.6, SO.sub.2 N(OCH.sub.3)CH.sub.3, SR.sub.7, SO.sub.2 R.sub.7, OCF.sub.2 H or OSO.sub.2 R.sub.8 ;
- R.sub.11 is H, C.sub.1 -C.sub.2 alkyl or CH.sub.2 CH.dbd.CH.sub.2 ;
- R.sub.12 is H or C.sub.1 -C.sub.2 alkyl;
- or
- R.sub.11 and R.sub.12 may be taken together to form --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.5 -- or --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 ;
- A is ##STR27## X is CH.sub.3, OCH.sub.3, OCF.sub.2 H, F, Cl or Br;
- Y is CH.sub.3, CH.sub.2 CH.sub.3, OCH.sub.3, OCH.sub.2 CH.sub.3, OCF.sub.2 H, CH.sub.2 OCH.sub.3, NH.sub.2, NHCH.sub.3, N(CH.sub.3).sub.2, SCH.sub.3 or OCH.sub.2 CF.sub.3 ;
- Z is CH;
- X.sub.1 is CH.sub.2 or O;
- Y.sub.1 is CH.sub.3, OCH.sub.3 or OCH.sub.2 CH.sub.3 ;
- and
- Y.sub.2 is CH.sub.3, CH.sub.2 CH.sub.3, OCH.sub.3 or OCH.sub.2 CH.sub.3 ;
- and
- Y.sub.3 is H or CH.sub.3 ;
- and their agriculturally suitable salts;
- provided that
- (a) when X is F, Cl or Br, then Y is OCH.sub.3, OCH.sub.2 CH.sub.3, NH.sub.2, NHCH.sub.3 or N(CH.sub.3).sub.2 ;
- (b) when R.sub.9 is CO.sub.2 R.sub.4 or SR.sub.7 and A is A-1 then R.sub.10 is other than CO.sub.2 R.sub.4 or SR.sub.7 ;
- and
- (c) when R.sub.2 is H, R.sub.1 must be C(O)NR.sub.11 R.sub.12.
26 more elements
Dependencies are inferred from the claim text.