Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
  • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
  • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
  • C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
  • A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
  • A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
  • A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C279/00—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
  • C07C279/20—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups containing any of the groups, X being a hetero atom, Y being any atom, e.g. acylguanidines
  • C07C279/24—Y being a hetero atom
  • C07C279/26—X and Y being nitrogen atoms, i.e. biguanides
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
  • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
  • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
  • C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
  • C07D251/16—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom
  • C07D251/18—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom with nitrogen atoms directly attached to the two other ring carbon atoms, e.g. guanamines
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
  • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
  • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
  • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
  • C07D251/40—Nitrogen atoms
  • C07D251/48—Two nitrogen atoms
  • C07D251/50—Two nitrogen atoms with a halogen atom attached to the third ring carbon atom
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
  • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
  • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
  • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
  • C07D251/40—Nitrogen atoms
  • C07D251/48—Two nitrogen atoms
  • C07D251/52—Two nitrogen atoms with an oxygen or sulfur atom attached to the third ring carbon atom
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
  • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
  • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links

Definitions

• the invention relates to new substituted 2-amino-4-altyla ⁇ uno-l, 3,5-triazines, several processes and new intermediates for their preparation and their use as herbicides.
• R 1 represents optionally substituted methyl
• R 2 represents hydrogen or alkyl
• Y represents in each case optionally substituted benzyl, naphthylmethyl, heterocyclylmethyl or heterocyclyloxy, and
• Z represents hydrogen, halogen or optionally substituted in each case
• R 1 , R 2 and Y have the meaning given above,
• R ' represents alkyl
• ⁇ represents halogen or alkoxy
• X ⁇ represents halogen or alkoxy
• R 1 , R 2 and Y have the meaning given above,
• the new substituted 2-amino-4-alkylamino-l, 3,5-triazines of the general formula (I) are notable for strong and selective herbicidal activity.
• the compounds of the general formula (I) according to the invention contain at least one asymmetrically substituted carbon atom and can therefore be present in various enantiomeric (R- and S-configured forms) or diastereomeric forms.
• the invention relates both to the various possible individual enantiomeric or stereoisomeric forms of the compounds of the general formula (I) and to the mixtures of these isomeric compounds.
• hydrocarbon chains such as alkyl - are also straight-chain or branched - also in conjunction with heteroatoms, such as in alkoxy or alkylthio.
• Halogen generally represents fluorine, chlorine, bromine or iodine, preferably fluorine, chlorine or bromine, in particular fluorine or chlorine.
• the invention preferably relates to compounds of the formula (I) in which
• R 1 represents methyl optionally substituted by halogen, cyano, carboxy, carbamoyl, thiocarbamoyl or C1-C4alkoxy,
• R 2 represents hydrogen or alkyl having 1 to 3 carbon atoms
• Y represents in each case optionally substituted benzyl, naphthylmethyl, heterocyclicmethyl or heterocyclyloxy,
• the possible heterocyclyl groupings are preferably selected from the following group:
• the invention relates in particular to compounds of the formula (I) in which
• R 1 represents methyl optionally substituted by fluorine and / or chlorine
• R 2 represents hydrogen, methyl or ethyl
• Y represents in each case optionally substituted benzyl, naphthylmethyl, heterocyclylmethyl or heterocyclyloxy, the possible heterocyclyl residues are preferably selected from the following group:
• Residual definitions can be combined with one another, that is, also between the specified preferred ranges.
• Hydrogen methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, chlorofluoromethyl, chlorobromomethyl, chlorodifluoromethyl, fluorodichloromethyl, bromodifluoromethyl, trichloro- methyl, 1-fluoro-ethyl, 2-fluoro-ethyl, 1-chloro-ethyl, 2-chloro-ethyl, 1-chloro-1-fluoro-ethyl, 1-fluoropropyl, 2-fluoropropyl, 3- Fluoropropyl, 1-fluoro- 1-methyl-ethyl, 2-fluoro-1-methyl-ethyl, 1-chloro-1-methyl-ethyl, 1-fluoro-1-methyl-propyl, 1-chloro-1- eth
• Group 19 has, for example, the meanings given above in Group 1.
• Group 25 has, for example, the meanings given above in Group 1.
• Group 25 has, for example, the meanings given above in Group 1.
• Group 28 has, for example, the meanings given above in Group 1.
• Group 31 has, for example, the meanings given above in Group 1.
• Group 34 has, for example, the meanings given above in Group 1.
• Group 37 has, for example, the meanings given above in Group 1.
• Group 40 has, for example, the meanings given above in Group 1.
• Group 43 has, for example, the meanings given above in Group 1.
• Group 46 has, for example, the meanings given above in Group 1.
• Group 49 has, for example, the meanings given above in Group 1.
• Group 64 has, for example, the meanings given above in Group 1.
• Group 70 has, for example, the meanings given above in Group 1.
• Group 76 has, for example, the meanings given above in Group 1.
• reaction sequence in process (c) according to the invention are outlined by the following formula:
• Formula (II) provides a general definition of the substituted biguanides to be used as starting materials in process (a) according to the invention for the preparation of compounds of the formula (I).
• R 1 , R 2 and Y preferably or in particular have those meanings which, in connection with the description of the compounds of the formula (I) according to the invention, are preferred or particularly preferred for R 1 , R 2 and Y were specified.
• Suitable acid adducts of compounds of the formula (II) are their addition products with protonic acids, such as e.g. with hydrogen chloride (hydrogen chloride), hydrogen bromide (hydrogen bromide), sulfuric acid, methanesulfonic acid, benzenesulfonic acid and p-toluenesulfonic acid.
• protonic acids such as e.g. with hydrogen chloride (hydrogen chloride), hydrogen bromide (hydrogen bromide), sulfuric acid, methanesulfonic acid, benzenesulfonic acid and p-toluenesulfonic acid.
• R 1 , R 2 and Y have the meaning given above,
• reaction auxiliary e.g. Hydrogen chloride
• diluent e.g. n-decane or
• 1,2-dichlorobenzene at temperatures between 100 ° C and 200 ° C (see. EP 492615, manufacturing examples).
• substituted alkylamino compounds of the general formula (VI) required as precursors are known and / or can be prepared by processes known per se (cf. DE 3426919; DE 4000610; DE 4332738, EP 320898; EP 443606; Tetrahedron: Asymmetry 5 (1994 ), 817-820; Tetrahedron Lett. 29 (1988), 223-224; loc. Cit. 36 (1995), 3917-3920; production examples).
• Formula (I) further alkoxycarbonyl compounds to be used as starting materials are generally defined by the formula (III).
• Z preferably or in particular has the meaning which has already been mentioned above in connection with the Description of the compounds of formula (I) according to the invention preferably or as being particularly preferred for Z;
• R ' preferably represents alkyl having 1 to 4 carbon atoms, in particular methyl or ethyl.
• the starting materials of the formula (III) are known synthetic chemicals.
• Formula (IV) provides a general definition of the substituted triazines to be used as starting materials in process (b) according to the invention for the preparation of compounds of the formula (I).
• R 1 , R 2 , Y and Z preferably or in particular have those meanings which are preferred or particularly preferred for R 1 already in connection with the description of the compounds of the formula (I) according to the invention , R 2 , Y and Z have been given;
• X * preferably represents fluorine, chlorine, bromine, methoxy or ethoxy, in particular chlorine.
• X 3 represents halogen
• an acid acceptor e.g. Ethyldiisopropylamine
• a diluent e.g. Tetrahydrofuran or dioxane
• Formula (V) provides a general definition of the substituted aminotriazines to be used as starting materials in process (c) according to the invention for the preparation of compounds of the formula (I).
• Z preferably or in particular has the meaning which has already been mentioned above in connection with the description of the compounds of the formula (I) according to the invention preferably or as particularly preferred for Z;
• X ⁇ preferably represents fluorine, chlorine, bromine, methoxy or ethoxy, in particular chlorine or methoxy.
• the starting materials of the general formula (V) are known and / or can be prepared by processes known per se (cf. WO 95/11237).
• Formula (VI) provides a general definition of the substituted alkylamines which are further to be used as starting materials in process (c) according to the invention.
• R 1 , R 2 and Y preferably or in particular have those meanings which have already been mentioned above in connection with the description of the compounds of the formula (I) according to the invention or as being particularly preferred for R 1 , R 2 and Y were specified.
• the starting materials of the general formula (VI) are known and / or can be prepared by processes known per se (cf. DE 3426919; DE 4000610; DE 4332738, EP 320898; EP 443606; Tetrahedron: Asymmetry 5 (1994), 817-820 ; Tetrahedron Lett. 29 (1988), 223-224; loc. Cit. 36 (1995), 3917-3920; manufacturing examples).
• reaction auxiliaries for processes (a), (b) and (c) are generally the customary inorganic or organic bases or acid acceptors. These preferably include alkali metal or alkaline earth metal acetates, amides, carbonates, bicarbonates, hydrides, hydroxides or alkanolates, such as, for example, sodium, potassium or calcium acetate, lithium, sodium or potassium - or
• Calcium amide sodium, potassium or calcium carbonate, sodium, potassium or calcium hydrogen carbonate, lithium, sodium, potassium or calcium hydride, lithium, sodium, potassium or calcium hydroxide, Sodium or potassium methoxide, ethanolate, n or i propanolate, n, i, s or t butanolate; also basic organic nitrogen compounds, such as, for example, trimethylamine, triethylamine, tripropylamine, tributylamine, ethyldiisopropylamine, N, N-dimethylcyclohexylamine, dicyclohexylamine, ethyldicyclohexylamine, N, N-dimethylaniline, N, N-dimethyl benzylamine, pyridine, 2-methyl, 3-methyl, 4-methyl, 2,4-dimethyl, 2,6-dimethyl, 3,4-dimethyl and 3,5-dimethyl-pyridine, 5-ethyl-2-methyl-pyridine, 4-dimethylamino
• DBU 1,8-diazabicyclo [5,4,0] undec-7-ene
• Inert organic solvents are particularly suitable as diluents for carrying out processes (a), (b) and (c) according to the invention.
• These include in particular aliphatic, alicyclic or aromatic, optionally halogenated hydrocarbons, such as, for example, gasoline, benzene, toluene, xylene, chlorobenzene, dichlorobenzene, petroleum ether, hexane, cyclohexane, dichloromethane, chloroform, carbon tetrachloride; Ethers such as diethyl ether, diisopropyl ether, dioxane, tetrahydrofuran or ethylene glycol dimethyl or diethyl ether; Ketones, such as acetone, butanone or methyl isobutyl ketone; Nitriles such as acetonitrile, propionitrile or butyronitrile; Amides such as N, N-dimethylformamide, N, N-d
• reaction temperatures can be varied within a substantial range when carrying out processes (a), (b) and (c). In general, temperatures between 0 ° C and 300 ° C, preferably between 10 ° C and 250 ° C.
• the processes (a), (b) and (c) according to the invention are generally carried out under normal pressure. However, it is also possible to carry out the processes according to the invention under elevated or reduced pressure - generally between 0.1 bar and 10 bar.
• the dough substances are generally used in approximately equimolar amounts. However, it is also possible to use one of the components in a larger excess.
• the reaction is generally carried out in a suitable diluent in the presence of a reaction auxiliary and the reaction mixture is generally stirred at the required temperature for several hours. Working up is carried out according to customary methods (cf. the production examples).
• the active compounds according to the invention can be used as defoliants, desiccants, haulm killers and in particular as weed killers. Weeds in the broadest sense are all plants that grow in places where they are undesirable. Whether the substances according to the invention act as total or selective herbicides depends essentially on the amount used.
• the active compounds according to the invention can e.g. can be used in the following plants:
• Dicotyledon cultures of the genus Gossypium, Glycine, Beta, Daucus, Phaseolus, Pisum, Solanum, Linum, Ipomoea, Vicia, Nicotiana, Lycopersicon, Arachis, Brassica,
• Lactuca Lactuca, cucumis, cucurbita.
• Scirpus Paspalum, Ischaemum, Sphenoclea, Dactyloctenium, Agrostis, Alopecurus, Apera, Phalaris.
• the compounds are suitable for total weed control, e.g. on industrial and track systems and on paths and squares with and without tree cover.
• the compounds for weed control in permanent crops e.g. Forest, ornamental wood, fruit, wine, citrus, nut, banana, coffee, tea, rubber, oil palm, cocoa, berry fruit and hop plants, on ornamental and sports turf and pasture land and for selective purposes Weed control can be used in annual crops.
• formulations are prepared in a known manner, e.g. B. by mixing the active ingredients with extenders, ie liquid solvents and / or solid carriers, optionally using surface-active agents, ie emulsifiers and / or dispersants and / or foam-generating agents.
• organic solvents can also be used as auxiliary solvents.
• auxiliary solvents e.g. organic solvents
• aromatics such as xylene, toluene, or alkylnaphthalenes
• chlorinated aromatics and chlorinated aliphatic hydrocarbons such as chlorobenzenes, chlorethylenes or methylene chloride
• aliphatic hydrocarbons such as cyclohexane or paraffins, e.g.
• Petroleum fractions mineral and vegetable oils, alcohols such as butanol or glycol and their ethers and esters, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents such as dimethylformamide and dimethyl sulfoxide, and water.
• alcohols such as butanol or glycol and their ethers and esters
• ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone
• strongly polar solvents such as dimethylformamide and dimethyl sulfoxide, and water.
• Possible solid carriers are: e.g. Ammonium salts and natural rock powders such as kaolins, clays, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth and synthetic rock powders such as highly disperse silica, aluminum oxide and silicates are suitable as solid carriers for granules: e.g. broken and fractionated natural rocks such as calcite, marble,
• Possible emulsifiers and / or foam-generating agents are: for example nonionic and anionic emulsifiers, such as polyoxyethylene fatty acid esters, polyoxyethylene fatty alcohol ethers, for example alkyl aryl polyglycol ethers, alkyl sulfonates, alkyl sulfates, aryl sulfonates and protein hydrolyzates;
• Possible dispersing agents are, for example, lignin sulfite waste liquor and methyl cellulose.
• Adhesives such as carboxymethyl cellulose, natural and synthetic powdery, granular or latex-shaped polymers, such as gum arabic, polyvinyl alcohol, polyvinyl acetate, and natural phospholipids such as cephalins and lecithins and synthetic phospholipids can be used in the formulations.
• Other additives can be mineral and vegetable oils.
• Dyes such as inorganic pigments, e.g. Iron oxide, titanium oxide, ferrocyan blue and organic dyes, such as alizarin, azo and metal phthalocyanine dyes and trace nutrients such as salts of iron, manganese, boron, copper, cobalt,
• Molybdenum and zinc can be used.
• the formulations generally contain between 0.1 and 95 percent by weight of active compound, preferably between 0.5 and 90%.
• the active compounds according to the invention can also be used for combating weeds, in a mixture with known herbicides, finished formulations or tank mixes being possible.
• DP Desmedipham, Diallate, Dicamba, Diclofop (-methyl), Difenzoquat, Diflu- fenican, Dimefuron, Dimepiperate, Dimethachlor, Dimethametryn, Dimethenamid, Dinitramine, Diphenamid, Diquat, Dithiopyr, Diuron, Dymron, EPTC, Esprocarb, Ethalfluralin, Ethametsulfuron (-methyl), Ethofumesate, Ethoxyfen, Etobenzanid, Fenoxaprop (-ethyl), Flamprop (-isopropyl), Flamprop (-isopropyl-L) Flamprop- (-methyl), flazasulfuron, fluazifop (-butyl), flumetsulam, flumiclorac (-pentyl), flumioxazin, flumipropyn, fluometuron, fluorochloridone, fluo
• Piperophos Pretilachlor, Primisulfuron (-methyl), Prometryn, Propachlor, Propanil, Propaquizafop, Propyzamide, Prosulfocarb, Prosulfuron, Pyrazolate, Pyrazo-sulfuron (-ethyl), Pyrazoxyfen, Pyributicarb, Pyridate, Pyrithiobac (-sac) Quinmerac, Quizalofop (-ethyl), Quizalofop (-p-tefuryl), Rimsulfuron, Sethoxydim, Simazine, Simetryn, Sulcotrione, Sulfentrazone, Sulfometuron-
• a mixture with other known active compounds such as fungicides, insecticides, acaricides, nematicides, bird repellants, plant nutrients and agents which improve soil structure, is also possible.
• the active ingredients as such, in the form of their formulations or the use forms prepared therefrom by further dilution, such as ready-to-use Solutions, suspensions, emulsions, powders, pastes and granules are used. They are used in the customary manner, for example by watering, spraying, spraying or scattering.
• the active compounds according to the invention can be applied both before and after the plants emerge. They can also be worked into the soil before sowing.
• the amount of active ingredient used can vary over a wide range. It essentially depends on the type of effect desired. In general, the application rates are between 1 g and 10 kg of active ingredient per hectare of soil, preferably between 5 g and 5 kg per ha.
• the residue is shaken with ethyl acetate / saturated aqueous sodium chloride solution, the organic phase is separated off and the aqueous phase is extracted again with ethyl acetate; the organic phases are combined, dried with sodium sulfate and filtered.
• the filtrate is concentrated in a water jet vacuum and the residue is crystallized by digesting with ethyl acetate / hexane. The crystalline product is then isolated by suction.
• the solvent is carefully distilled off in a water jet vacuum.
• the reaction can also be carried out at the same temperature without a solvent - i.e. in the melt - be carried out.
• Example (II-1) Analogously to Example (II-1), it is also possible, for example, to prepare the compounds of the formula (II) listed in Table 2 below or their hydrochlorides.
• the residue is shaken with diethyl ether / saturated aqueous ammonium chloride solution, the organic phase is separated off and the aqueous phase is re-extracted, the combined organic phases are dried with sodium sulfate and filtered.
• the filtrate is concentrated in a water-jet vacuum, the residue is digested with petroleum ether / methyl t-butyl ether and the product obtained in crystalline form is isolated by suction.
• a mixture of 8.0 g (0.08 mol) of pentane-2,4-dione, 14.5 g (0.08 mol) of 4-methylthio-benzyl chloride, 12 g of potassium carbonate and 100 ml of ethanol is kept for 15 hours Reflux heated. After cooling, the mixture is diluted to about three times the volume with approximately equal volumes of water and methylene chloride. After shaking well, the organic phase is separated off, dried with sodium sulfate and filtered. The filtrate is concentrated in a water jet vacuum and the residue is distilled in an oil pump vacuum.
• the filtrate is shaken three times with 30 ml of 10% aqueous hydrochloric acid, then dried with sodium sulfate and filtered. The solvent is carefully distilled off from the filtrate in a water jet vacuum.
• Emulsifier 1 part by weight of alkylaryl polyglycol ether
• active compound 1 part by weight of active compound is mixed with the stated amount of solvent, the stated amount of emulsifier is added and the concentrate is diluted with water to the desired concentration.
• Seeds of the test plants are sown in normal soil. After about 24 hours, the active ingredient preparation is poured onto the floor.
• the amount of water per unit area is expediently kept constant.
• the concentration of active substance in the preparation is irrelevant, the only decisive factor is the amount of active substance applied per unit area.
• the degree of damage to the plants is rated in% damage compared to the development of the untreated control.
• the compounds according to Preparation Example 5 7, 9, 11, 12, 15, 52, 53, 59, 60, 61, 62 and 63 show with good tolerance to crop plants, such as e.g. Corn, wheat, barley, rapeseed and cotton, strong activity against weeds (see Table A).
• Active ingredient according to expenditure- barley tree- alope- digi- echino- ama- datura matri- viola manufacturing ex. -No. amount (g ai./ha) wool curus taria chloa ranthus caria
• Emulsifier 1 part by weight of alkylaryl polyglycol ether
• Test plants with a height of 5-15 cm are sprayed with the active substance preparation in such a way that the desired amounts of active substance are applied per unit area.
• the concentration of the spray liquor is chosen so that in
• the degree of damage to the plants is rated in% damage compared to the development of the untreated control.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Plural Heterocyclic Compounds (AREA)

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• 1996
  • 1996-10-10 DE DE19641693A patent/DE19641693A1/de not_active Withdrawn
• 1997
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