Herbicidal benzodioxoles and benzodioxanes
AssigneeE. I. Du Pont de Nemours and Company
InventorsDonna L. Spedding, Thomas M. Stevenson
Life of this patent
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Abstract
Compounds of Formula I, and their N-oxides and agriculturally-suitable salts, are disclosed which are useful for controlling undesired vegetation ##STR1## wherein: ##STR2## T is O or S; W is a single bond, O, S or NR.sup.6 ; X is N or CH; Y is N or CH; Z is N or CR.sup.7 provided that when Z is CR.sup.7, then Y is N; R.sup.6 is H, CH.sub.3 or OCH.sub.3 ; m is 1 or 2; and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.7 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula I and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula I.
Claims7
A compound selected from Formula I, an N-oxide and an agriculturally-suitable salt thereof, ##STR36## wherein:
- Q is ##STR37## T is O or S;
- W is a single bond, O, S or NR.sup.6 ;
- X is N or CH;
- Y is N or CH;
- Z is N or CR.sup.7 provided that when Z is CR.sup.7, then Y is N;
- R.sup.1 is C.sub.1 -C.sub.5 alkyl optionally substituted with C.sub.1 -C.sub.2 alkoxy, OH, 1-3 halogens, or C.sub.1 -C.sub.2 alkylthio;
- CH.sub.2 (C.sub.3 -C.sub.4 cycloalkyl);
- C.sub.3 -C.sub.4 cycloalkyl optionally substituted with 1-3 methyl groups;
- C.sub.2 -C.sub.4 alkenyl;
- C.sub.2 -C.sub.4 haloalkenyl;
- or phenyl optionally substituted with halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, nitro or cyano;
- R.sup.2 is H, chlorine, bromine, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, C.sub.1 -C.sub.2 alkylthio, C.sub.2 -C.sub.3 alkoxyalkyl, C.sub.2 -C.sub.3 alkylthioalkyl, cyano, nitro, NH(C.sub.1 -C.sub.2 alkyl) or N(C.sub.1 -C.sub.2 alkyl).sub.2 ;
- R.sup.3 is C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.3 alkylamino or N(C.sub.1 -C.sub.3 alkyl)(C.sub.1 -C.sub.3 alkyl);
- R.sup.4 is H or F;
- R.sup.5 is H, CN, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.3 -C.sub.4 halocycloalkyl, C.sub.2 -C.sub.4 haloalkenyl, C.sub.3 -C.sub.4 haloalkynyl, OR.sup.8, S(O).sub.n R.sup.9 or halogen;
- R.sup.6 is H, CH.sub.3 or OCH.sub.3 ;
- R.sup.7 is H, CN, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.3 -C.sub.4 halocycloalkyl, C.sub.2 -C.sub.4 haloalkenyl, C.sub.3 -C.sub.4 haloalkynyl, OR.sup.10, S(O).sub.p R.sup.11 or halogen;
- R.sup.8 and R.sup.10 are each independently C.sub.1 -C.sub.4 alkyl, C3-C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.2 -C.sub.4 haloalkenyl or C.sub.3 -C.sub.4 haloalkynyl;
- R.sup.9 and R.sup.11 are each independently C.sub.1 -C.sub.2 alkyl or C.sub.1 -C.sub.2 haloalkyl;
- m is 1 or 2;
- and
- n and p are each independently 0, 1 or 2;
- provided that when Z is CR.sup.7, then exactly one of R.sup.5 and R.sup.7 is H.
Dependencies are inferred from the claim text.