Derivatives of 4-((aryloxy)phenoxy)alkenols and their herbicidal uses
AssigneeThe Dow Chemical Company
InventorsJames A. Turner, Wendy S. Jacks, Paul S. Zorner
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Abstract
Derivatives of 4-((aryloxy)phenoxy)alkenols, their preparation and use as active herbicides for the postemergent control of grassy weeds and especially the control of said weeds in the presence of corn plants are disclosed.
Claims37
A compound or an optical isomer thereof corresponding to the formula ##STR106## wherein Ar represents ##STR107## Y and Y.sup.1 each independently represent --H or --F;
- X represents --H, --Br or --Cl;
- R represents methyl or ethyl;
- T represents --CH.sub.2 --CH.sub.2).sub.a (CH.dbd.CH--.sub.b and the cis (Z) or trans (E) stereoisomers thereof or --CH.sub.2 --CH.sub.2).sub.a (C.tbd.C--;
- a represents the integer 0, 1 or 2;
- b represents the integer 1 or 2;
- P represents --Br, --Cl, --I or --CF.sub.3 ;
- R.sup.1 represents --OSO.sub.2 R.sup.2
- R.sup.2 represents C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkenyl.
A composition which comprises an agriculturally acceptable inert adjuvant in intimate admixture with a herbicidally effective amount of a compound, as the active material, which corresponds to the formula ##STR109## wherein Ar represents ##STR110## Y and Y.sup.1 each independently represent --H or --F;
- X represents --H, --Br or --Cl;
- R represents methyl or ethyl;
- T represents --CH.sub.2 --CH.sub.2).sub.a (CH.dbd.CH--.sub.b and the cis (Z) or trans (E) stereoisomers thereof or --CH.sub.2 --CH.sub.2).sub.a (C.tbd.C--;
- a represents the integer 0, 1 or 2;
- b represents the integer 1 or 2;
- P represents --Br, --Cl, --I or --CF.sub.3 ;
- R.sup.1 represents --OSO.sub.2 R.sup.2
- R.sup.2 represents C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkenyl.
A method for the postemergent kill and control of grassy weeds which comprises applying to said weeds a herbicidally effective amount of a composition comprising an agriculturally acceptable inert adjuvant in intimate admixture with, as the active material, a compound corresponding to the formula ##STR112## wherein Ar represents ##STR113## Y and Y.sup.1 each independently represent --H or --F;
- X represents --H, --Br or --Cl;
- R represents methyl or ethyl;
- T represents --CH.sub.2 --CH.sub.2).sub.a (CH.dbd.CH--.sub.b and the cis (Z) or trans (E) stereoisomers thereof or --CH.sub.2 --CH.sub.2).sub.a (C.tbd.C--;
- a represents the integer 0, 1 or 2;
- b represents the integer 1 or 2;
- P represents --Br, --Cl, --I or --CF.sub.3 ;
- R.sup.1 represents --OSO.sub.2 R.sup.2
- R.sup.2 represents C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkenyl.
Dependencies are inferred from the claim text.