Herbicidal 2,6-dioxocyclohexylidene derivatives
AssigneeUnion Carbide Corporation
InventorDavid T. Manning
Life of this patent
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Abstract
This invention relates to certain 2,6-dioxocyclohexylidene-substituted heterocyclic compounds which show broad-spectrum herbicidal activity against a variety of broadleaf and grassy weeds.
Claims12
A herbicidal composition comprising an acceptable carrier and an active toxidant wherein said toxicant comprises a herbicidally effective amount of a compound of the formula:
- ##STR14## wherein:
- Y is CH.sub.2 or CHR.sup.4 ;
- wherein R.sup.4 is C.sub.1 -C.sub.3 alkyl
- R.sup.1 is hydrogen or C.sub.1 -C.sub.3 alkyl, with the proviso that the number of carbon atoms in R.sup.1 plus Y is less than or equal to 5;
- R.sup.2 is hydrogen or C.sub.1 -C.sub.5 straight chain, branches or cyclic alkyl;
- R.sup.3 is C.sub.1 -C.sub.3 straight chain alkyl or R.sup.2 and R.sup.3 together may form a cyclopentane or cyclohexane ring wherein the number of carbon atoms in R.sup.2 plus R.sup.3 is less than or equal to 6;
- and
- n is b 0, 1, or 2.
A herbicidal composition comprising an acceptable carrier and as the active toxicant, a herbicidally effective amount of 5-(1-methylethyl)-2-(2-imidazolidinylidene)-1,3-cyclohexanedione.
A herbicidal composition comprising an acceptable carrier and as the active toxicant, a herbicidally effective amount of 5,5-dimethyl-2-(2-hexahydropyrimidinylidene)-1,3-cyclohexanedione.
A herbicidal composition comprising an acceptable carrier and as the active toxicant, a herbicidally effective amount of 5(1-methylethyl)-2-(2-hexahydropyrimidinylidene)-1,3-cyclohexanedione.
A herbicidal composition comprising an acceptable carrier and as the active toxicant, a herbicidally effective amount of 5,5-dimethyl-2-(4-methyl-2-hexahydropyrimidinylidene)-1,3-cyclohexanedione
A herbicidal composition comprising an acceptable carrier and as the active toxicant, a herbicidally effective amount of 5-(1-methylethyl)-2-(4-methyl-2-hexahydropyrimidinylidine)-1,3-cyclohexane dione.
A method of controlling undesired plant growth which comprises subjecting said plant to a herbidically effective amount of the compound of the formula:
- ##STR15## wherein:
- Y is CH.sub.2 or CHR.sup.4, wherein R.sup.4 is C.sub.1 -C.sub.3 alkyl
- R.sup.1 is hydrogen or C.sub.1 -C.sub.3 alkyl, with the proviso that the number of carbon atoms in R.sup.1 plus Y is less than or equal to 5;
- R.sup.2 is hydrogen or C.sub.1 -C.sub.5 straight chain, branches or cyclic alkyl;
- R.sup.3 is C.sub.1 -C.sub.3 straight chain alkyl or R.sup.2 and R.sup.3 together may form a cyclopentane or cyclohexane ring wherein the number of carbon atoms in
- R.sup.2 plus R.sup.3 is less than or equal to 6;
- and n is 0, 1, or 2.
A method of controlling undesired plant growth which comprises subjecting said plant to a herbicidally effective amount of 5-(1-methylethyl)-2-(2-imidazolidinylidene)-1,3-cyclohexanedione.
A method of controlling undesired plant growth which comprises subjecting said plant to a herbicidally effective amount of 5,5-dimethyl-2-(2-hexahydropyrimidinylidene)-1,3-cyclohexanedione.
A method of controlling undesired plant growth which comprises subjecting said plant to a herbicidally effective amount of 5-(1-methylethyl)-2-(2-hexahydropyrimidinylidene)-1,3-cyclohexanedione.
A method of controlling undesired plant growth which comprises subjecting said plant to a herbicidally effective amount of 5,5dimethyl-2-(4-methyl-2-hexahydropyrimidinylidene)-1,3-cyclohexanedione.
A method of controlling undesired plant growth which comprises subjecting said plant to a herbicidally effective amount of 5-(1-methylethyl)-2-(4-methyl-2-hexahydropyrimidinylidine)-1,3-cyclohexane dione.
Dependencies are inferred from the claim text.