Herbicide tool

 

(57) Abstract:

Usage: in agriculture, in particular in herbicide tools of plants in the form of a 25% aqueous sprayable powder or 25% emulsion concentrate. The inventive agent comprises as an active ingredient the compound f-ly: -CH=C[OCH3]-N=C[OCH/A/C/O/OR]-N=C[OCH3] where And substituted in the first position by fluorine, C1-C6- alkyl, C3-C6- cycloalkyl, phenyl, alpha-methyl-tormentil, propenyl, R is hydrogen or C1-C4- alkyl. 7 table.

The invention relates to herbicide products containing as derived pyrimidinecarbonitrile acid compound of General formula

where a represents a 1-position substituted WITH fluorine1-C6is an alkyl residue or3-C6-cycloalkenyl residue, phenyl-methyl-, -tormentingly balance, propenyl;

R1means hydrogen, C1-C4alkyl residue,

as filler kaolin, silicic acid or cyclohexanone and xylene, as the surfactant mixture of the calcium salt of lignosulfonate and sodium salt of N-methyl-N-reitoria or a mixture of the calcium salt of dodecylbenzyl the herbicide action in relation to the broadleaf weeds and grass. Possible selective application of the proposed invention the means for different crops, such as rapeseed, sugar beet, soybean, cotton, rice, barley, wheat and other cereal species. While some tools especially Prigioni as a selective herbicide herbicide on sugar beet, cotton, soybean and cereals. Also, these funds may be used for combating weeds in perennial cultures, for example in forest plantings, ornamental flower beds, growing vegetables, grapes, citrus fruits, nuts, bananas, coffee, tea, rubber trees, cocoa trees, berries and hops, and for the selective combating of weeds in annual crops.

The proposed tools can be used, for example, for the following species of plants: decotignie weeds families Sinapis, Lepidium, Galium, Stallaria, Matricaria, Anthemis, Galinsoga, Chenopodium, Brassica, Urtica, Senecio, Amaranthus, Portulaca, Xanthium, Convolvulus, Ipomoea, Polygonum, Sesbania, Ambrosia, Cirsium, Carduus, Sonchus, Solanum, Rorippa, Lamium, Veronica, Abutilon, Datura, Viola, Galeopsis, Papaver, Centaurea, Chrysanthenum; monocotyle weeds families Avena, Alopecurus, Echinochloa, Setaria, Panicum, Digitaria, Poa, Eleusine, Brachiaria, Lolium, Bromus, Cyperus, Agropyron, Sagittaria, Monochoria, Fimbristylis, Eleocharis, Ishacmum, Apera. The proposed tool can be used in various forms, for example in the form of a sprayable powder of the following composition, wt. 25 activerole N-methyl-N-reitoria or in the form of an emulsion concentrate, wt. 25 active substances; 15 cyclohexanone; 55 xylene and 5 mixture of the calcium salt dodecylbenzenesulfonic acid and nonylphenolethoxylates.

P R I m e R 1. 2-(4,6-Dimethoxy-2-pyrimidinone)-3-fluoro-3-methylbutanoate acid, methyl ester.

4 g (to 26.6 mmol) 3-fluoro-2-hydroxy-3-methylbutanoic acid, methyl ester and of 5.81 g (to 26.6 mmol) of 4,6-dimethoxy-2-methylsulfonylamino dissolved in 75 ml of dimethylformamide at 20aboutWith and mixed with 1.84 g (13.3 mmol) of potassium carbonate. The suspension is stirred for 5 h at 20aboutWith, after which it is heated for 1 h at 60aboutC. the Reaction mixture make 150 ml of ice water and extracted three times with 75 ml of acetic ether. Purified ether phases are washed with water, dried over magnesium sulfate, filtered and evaporated. The thus obtained solid product by column chromatography on silica gel purified with a mixture of hexane and acetic ether. Yield 2.9 g 37.7% of theory. So pl. 73-74aboutC.

P R I m m e R 2. 2-(4,6-Dimethoxy-2-pyrimidinone)-3-formicivora acid.

2 g (6,9 mmol) methyl ester of 2-(4,6-dimethoxy-2-pyrimidinone)-3-fluoro-3-methylbutanoic acid dissolved in a mixture of 20 ml of water and 10 ml of methanol, then smesi the thief bring in 50 ml of water and extracted with 50 ml acetic ester. After that, the aqueous phase is acidified with hydrochloric acid to pH 2 and extracted three times her 100 ml acetic ester. Purified ether phases are washed with water, dried over magnesium sulfate, filtered and evaporated. The output of 1.0 g,5% of theory. So pl. 107-108aboutC.

In a similar manner there were obtained compounds of General formula I, are given in table. 1.

P R I m e R A. selected In the greenhouse the plants after germination were processed cooked funds in the amount of 1.0 kg of active substance per 1 ha With this purpose funds in the form of emulsions or suspensions in 500 l of water/ha evenly sprayed over the plants. Two weeks after treatment, the proposed means showed high selectivity with respect to cultural plants in the sunflower when pronounced activity against weeds. Reference means (comparator) showed high selectivity.

In table. 2 use:

0 no damage

1 1 24% damage

2 25-74% damage

3 75-89% damage

4 90-100% damage

HELAN Helianthus annuus

ABUTH Abutilon theophrasti

GAL AP Galium aparine

SEBEX Sesbania exaltata

SOLSS Solanum sp.

VERPE Veronica persica

P R I m e R Cent. In the greenhouse pivnogo substances on 1 hectare To this end funds in the form of emulsions or suspensions with 500 l of water/ha evenly sprayed over the soil. Three weeks after treatment proposed funds showed high selectivity with respect to cultural plants of soybean, cotton, sunflower, wheat and maize with pronounced activity against weeds. Reference tool showed high selectivity.

In table. 3 the following symbols are used:

0 no damage

1 1-24% damage

2 25-74% damage

3 75-89% damage

4 90-100% damage GLXMA Glycine maxima (I) GOSHI Gossypium hirsutum (II) HELAN Helianthus annuus (III) TRZAX Triticum acstivum (IV) ZEAMX Zea mays (V) PANSS Panicum maximum (VI) GALAP Galium aparine (VII) SOLSS Solanum sp. (VIII) VERPE Veronica prsica (IX)

P R I m e R C. In the greenhouse were used are given in table. 4 means in the above mentioned number. This tool was applied in a specially prepared form in a vessel with 1500 ml of water. Test plant species were planted in stage 2 to 5 leaf. Three weeks after the application was estimated damage plants. The proposed tool showed strong activity against wet scions (shoots) weeds while selectivity with respect to "water shoots".

Table./BR> 3 heavy damage

4 completely destroyed ORYSA Oryza sativa (I) ECHGG Echinochloa crus galli (II) SAGPY Sagittaria pygmolea (III) SCPJU Scirpus juncides (IV) MOOVA Monochoria vaginalis (V) CYPSE Cyperus serotinus (VI)

P R I m e R D. In the greenhouse of the selected species before germination were processed cooked funds in the amount of 1.0 kg of active substance per 1 ha With this purpose funds in the form of emulsions or suspensions with 500 l of water/ha evenly sprayed over the soil. Three weeks after treatment, the proposed means showed pronounced activity against weeds.

In table. 5 use:

0 no damage

1 1-24% damage

2 25-74% damage

3 75-89% damage

4 90-100% damage AVEFA Avena fatua (I) SEYVI Setaria viridis (II) CYPES Cyperus esculentus (III) ABUTH Abutilon theophrsti (IV) IPOSS Ipomoea purpurea (V) MATCH Matricaria chamniomilta (VI) POLSS Polygonum sp. (VII) SOLSS Solanum sp. (VIII) VERPE Veronica persica (IX) VIOSS Viola sp. (X)

P R I m e R that is selected In the greenhouse the plants after germination were processed cooked funds in the amount of 0.1 kg of active substance per 1 ha With this purpose funds in the form of emulsions with 500 l of water/ha evenly sprayed over the plants. Two weeks after treatment the proposed tool showed high selectivity with respect to the same high activity. In table. 6 use:

0 no damage

1 1-24% damage

2 25-74% "

3 75-89% damage

4 90-100% damage GOSHI Gossypium hirsutum (I) ALOMY Alopecurus myosuroides (II) PANSS Panicum maximum (III) ABUTH Abutilon theophrasti (IV) IPOSS Ipomoea purpurea (V) POLSS Polygonum sp. (VI) SOLSS Solanum sp. (VII) VERPE Veronica persica (VIII) VIOSS Viola sp. (IX)

P R I m e R f selected In the greenhouse the plants after germination were processed cooked funds in the amount of 0.1 kg of active substance per 1 ha With this purpose funds in the form of emulsions with 500 l of water/ha evenly sprayed over the plants. Two weeks after treatment the proposed tool showed high selectivity with respect to cultural plants in cotton with pronounced activity against weeds. Reference tool showed high activity. In table. 7 use:

0 no damage

1 1-24% damage

2 25-74% damage

3 75-89% damage

4 90-100% damage GOSHI Gossypium hirsutum (I) AGRRE Elymus repens (II) BROTE Bromus tectorum (III) SETVI Setaria viridis (IV) PANSS Panicum maximum (V) SORHA Sorhum halepense (VI) ABUTH Abutilon theophrasti (VII) GALAP Galium aparine (VIII) IPOSS Ipomoea purpurea (IX) MATCH Matricaria chamomilla (X) POLSS Polygonum sp. (XI) SEBEX Sesbania exaltata (XII) VERPE Veronica persica (XIII)

HERBICIDE AGENT, comprising the active ingredient p is eat, that, to increase herbicide activity, it contains as derived pyrimidinecarbonitrile acid compound of General formula

< / BR>
where a represents a 1-position substituted WITH fluorine1- C6is an alkyl residue or3WITH6-cycloalkenyl residue, phenyl, -methylene - a-tormentingly balance, propenyl;

R is hydrogen, C1WITH4is an alkyl residue,

as filler kaolin and flint acid or cyclohexanone and xylene, as the surfactant mixture of the calcium salt of lignosulfonate and sodium salt of N-methyl-N-reitoria or a mixture of the calcium salt of dodecylbenzenesulfonate and nonylphenolethoxylates in the following ratio, wt.

The active ingredient 25

Kaolin 60

Silicic acid 10

A mixture of the calcium salt of lignosulfonate and sodium salt of N-methyl-N-reitoria 5

or

The active ingredient 25

Cyclohexanone 15

Xylene 55

A mixture of the calcium salt of dodecylbenzenesulfonate and nonylphenolethoxylates 5

 

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