N-aryl-uracile-based herbicides

Details N-aryl-uracile-based herbicides N-aryl-uracile-based herbicides

2002-08-28

2004-05-11

Qazi, Sabiha (Department: 1616)

Plant protecting and regulating compositions

Plant growth regulating compositions

Plural active ingredients

C504S243000, C504S136000, C544S309000, C544S310000, C544S311000, C544S312000, C544S313000, C544S314000

Reexamination Certificate

active

06734139

ABSTRACT:

FIELD OF THE INVENTION
The invention relates to novel herbicidal active compound combinations comprising, on the one hand, known N-aryl-uracils and, on the other hand, known herbicidally active compounds and/or compounds which improve crop plant compatibility, which combinations can be used with particularly good results for controlling monocotyledonous and dicotyledonous weeds in various crops of useful plants, but also for controlling monocotyledonous and dicotyledonous weeds in the semi- and non-selective field.
BACKGROUND OF THE INVENTION
N-aryl-uracils are, as herbicidally active compounds, subject of a number of patent applications (cf. EP-A-408382, EP-A-473551, EP-A-563384, EP-A-648749, U.S. Pat. No. 4,943,309, U.S. Pat. No. 5,084,084, U.S. Pat. No. 5,127,935, U.S. Pat. No. 5,759,957, WO-A-91/00278, WO-A-95/29168, WO-A-95/30661, WO-A-96/35679, WO-A-97/01541, WO-A-98/25909). However, the known N-aryl-uracils have a number of gaps in their activity.
A number of herbicidally active compound combinations based on N-aryl-uracils have also been disclosed (cf. DE-A-4437197, DE-A-19915013, DE-A-19919951, EP-A-714602, WO-A-96/07323, WO-A-96/08151, JP-A-11189506). However, likewise, the properties of these active compound combinations are not entirely satisfactory.
DETAILED DESCRIPTION OF THE INVENTION
Surprisingly, it has now been found that a number of known active compounds from the group of the N-aryl-uracils, when used together with known herbicidally active compounds, show synergistic effects with respect to the activity against weeds and can be used particularly advantageously as broadly active combination preparations for the selective control of monocotyledonous and dicotyledonous weeds in crops of useful plants, such as, for example, cotton, cereals, grass/pasture land, maize, lawn (“turf”), rice, soyabeans, sunflowers and sugar cane, but also for controlling monocotyledonous and dicotyledonous weeds in the semi- and non-selective field.
The present invention provides herbicidal compositions, characterized in that they comprise an effective amount of an active compound combination comprising
(a) at least one N-aryl-uracil of the formula (I)
 in which
R
1
represents hydrogen, amino or optionally cyano-, halogen- or C
1
-C
4
-alkoxy-substituted alkyl having 1 to 5 carbon atoms,
R
2
represents optionally halogen-substituted alkyl having 1 to 5 carbon atoms,
R
3
represents hydrogen, halogen or optionally halogen-substituted alkyl having 1 to 5 carbon atoms,
R
4
represents hydrogen, cyano or halogen,
R
5
represents cyano, thiocarbamoyl or halogen, and
R
6
represents nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, hydroxyl, mercapto, amino, hydroxyamino, aminosulphonyl, halogen, represents in each case optionally cyano-, hydroxyl-, C
1
-C
4
-alkoxy-, C
1
-C
4
-alkyl-carbonyl-, C
1
-C
4
-alkoxy-carbonyl-, C
2
-C
4
-alkenyloxy-carbonyl-, C
2
-C
4
-alkinyloxy-carbonyl-, C
1
-C
4
-alkylamino-carbonyl-, di-(C
1
-C
4
-alkyl)-amino-carbonyl-, phenoxycarbonyl- and/or phenylaminocarbonyl-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylcarbonyl, alkoxycarbonyl or alkylamino having in each case up to 6 carbon atoms, represents in each case optionally cyano-, carboxyl-, halogen- and/or C
1
-C
4
-alkoxy-carbonyl-substituted alkenyl, alkinyl, alkenyloxy or alkinyloxy having in each case up to 6 carbon atoms, represents in each case optionally halogen- or C
1
-C
4
-alkoxy-substituted alkylcarbonylamino, alkoxycarbonylamino, alkylsulphonylamino, N,N-bis-alkylsulphonyl-amino or N-alkylcarbonyl-N-alkylsulphonyl-amino having in each case up to 6 carbon atoms in the alkyl groups, or represents phenyloxy, naphthyloxy, N-phenylcarbonyl-N-alkylsulphonyl-amino, N-pyridylcarbonyl-N-alkylsulphonyl-amino, N-furylcarbonyl-N-alkylsulphonyl-amino or N-thienylcarbonyl-N-alkylsulphonyl-amino having in each case up to 6 carbon atoms in the alkyl groups and being in each case optionally substituted by cyano or halogen, or by C
1
-C
4
-alkyl, C
1
-C
4
-alkoxy or C
1
-C
4
-alkoxy-carbonyl (which are in each case optionally substituted by C
1
-C
4
-alkoxy-carbonyl, C
3
-C
4
-alkenyloxy-carbonyl or C
3
-C
4
-alkinyloxy-carbonyl),
(“Active Compounds of Group 1”)
and
(b) at least one compound from a second group of herbicides comprising the active compounds listed below:
2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methyl-phenyl)-acetamide (acetochlor), 5-(2-chloro-4-trifluoromethyl-phenoxy)-2-nitro-benzoic acid sodium salt (acifluorfen-sodium), 2-chloro-6-nitro-3-phenoxy-benzenamine (aclonifen), 2-chloro-N-(methoxymethyl)-N-(2,6-diethyl-phenyl)-acetamide (alachlor), N-ethyl-N′-i-propyl-6-methylthio-1,3,5-triazine-2,4-diamine (ametryn), 4-amino-N-(1,1-dimethyl-ethyl)-4,5-dihydro-3-(1-methyl-ethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide (amicarbazone), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(N-methyl-N-methylsulphonyl-sulphamoyl)-urea (amidosulfuron), 1H-1,2,4-triazol-3-amine (amitrole), 6-chloro-4-ethylamino-2-isopropylamino-1,3,5-triazine (atrazine), 2-[2,4-dichloro-5-(2-propinyloxy)-phenyl]-5,6,7,8-tetrahydro-1,2,4-triazolo-[4,3-a]-pyridin-3(2H)-one (azafenidin), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-[1-methyl-4-(2-methyl-2H-tetrazol-5-yl)-1H-pyrazol-5-ylsulphonyl]-urea (azimsulfuron), N-benzyl-2-(4-fluoro-3-trifluoromethyl-phenoxy)-butanamide (beflubutamid), 4-chloro-2-oxo-3(2H)-benzothiazoleacetic acid (benazolin), N-butyl-N-ethyl-2,6-dinitro-4-trifluoromethyl-benzenamine (benfluralin), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(2-methoxycarbonyl-phenylmethylsulphonyl)-urea (bensulfuron), methyl 2-[2-[4-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)phenoxy]methyl]-5-ethyl-phenoxy-propanoate (benzfendizone), 3-(2-chloro-4-methylsulphonyl-benzoyl)-4-phenylthio-bicyclo-[3.2.1]-oct-3-en-2-one (benzobicyclon), ethyl N-benzoyl-N-(3,4-dichloro-phenyl)-DL-alaninate (benzoylprop-ethyl), 3-i-propyl-1H-2,1,3-benzothiadiazin-4(3H)-one (bentazone), methyl 5-(2,4-dichloro-phenoxy)-2-nitro-benzoate (bifenox), 2,6-bis-(4,6-dimethoxy-pyrimidin-2-yl-oxy)-benzoic acid sodium salt (bispyribac-sodium), 5-bromo-6-methyl-3-(1-methyl-propyl)-2,4(1H,3H)pyrimidinedione (bromacil), 2-bromo-3,3-dimethyl-N-(1-methyl-1-phenyl-ethyl)-butanamide (bromobutide), O-(2,4-dinitro-phenyl) 3,5-dibromo-4-hydroxy-benzaldehyde-oxime (bromofenoxim), 3,5-dibromo-4-hydroxy-benzonitrile (bromoxynil), N-butoxymethyl-2-chloro-N-(2,6-diethyl-phenyl)-acetamide (butachlor), [1,1-dimethyl-2-oxo-2-(2-propenyloxy)]-ethyl 2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-benzoate (butafenacil-allyl), 2-(1-ethoximino-propyl)-3-hydroxy-5-[2,4,6-trimethyl-3-(1-oxo-butyl)-phenyl]-2-cyclohexen-1-one (butroxydim), S-ethyl bis-(2-methyl-propyl)-thiocarbamate (butylate), N,N-diethyl-3-(2,4,6-trimethyl-phenylsulphonyl)-1H-1,2,4-triazole-1-carboxamide (cafenstrole), 2-[1-[(3-chloro-2-propenyl)-oxyimino]-propyl]-3-hydroxy-5-(tetrahydro-2H-pyran-4-yl)-2-cyclohexen-1-one (caloxydim, tepraloxydim), 2-(4-chloro-2-fluoro-5-(2-chloro-2-ethoxycarbonyl-ethyl)-phenyl)-4-difluoromethyl-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (carfentrazone-ethyl), 2,4-dichloro-1-(3-methoxy-4-nitro-phenoxy)-benzene (chlomethoxyfen), 3-amino-2,5-dichloro-benzoic acid (chloramben), N-(4-chloro-6-methoxy-pyrimidin-2-yl)-N′-(2-ethoxycarbonyl-phenylsulphonyl)-urea (chlorimuron-ethyl), 1,3,5-trichloro-2-(4-nitro-phenoxy)-benzene (chlomitrofen), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-(2-chloro-phenylsulphonyl)-urea (chlorsulfuron), N′-(3-chloro-4-methyl-phenyl)-N,N-dimethyl-urea (chlortoluron), ethyl 2-chloro-3-[2-chloro-5-(1,3,4,5,6,7-hexahydro-1,3-dioxo-2H-isoindol-2-yl)-phenyl]-2-propanoate (cinidonethyl), N-(4,6-dimethoxy-1,3,5-triazin-2-yl)-N′-(2-(2-methoxy-ethoxy)-phenylsulphonyl)-urea (cinosulfuron), 2-[1-[2-(4-chloro-phenoxy)-propoxyamino]butyl]-5-(tetrahydro-2H-thiopyran-3-yl)-1,3-cyclohexanedione (clefoxydim), (E,E)-(+)-2-[1-[

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