Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
  • C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
  • C07D241/10—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
  • C07D241/14—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D241/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• • 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
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
  • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
  • C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
  • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
  • C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond

Definitions

• the compounds I or IV or the herbicidal compositions comprising them and their environmentally compatible salts of, for example, alkali metals, alkaline earth metals or ammonia and amines or the herbicidal compositions comprising them, can weeds and harmful grasses very well in crops such as wheat, rice, corn, soybeans and cotton fight without significantly damaging the crops. This effect occurs especially at low application rates.
• the compounds I or IV or compositions containing them can also be used in a further number of crop plants for eliminating undesired plants.
• the following crops are considered, for example: Allium cepa, pineapple comosus, Arachis hypogaea, asparagus
• napobrassica Brassica rapa var. silvestris, Camellia sinensis, Carthamus tinctorius, Carya illinoinensis, Citrus limon, Citrus sinensis, Coffea arabica (Coffea canephora, Coffea liberica), Cucumis sativus, Cynodon dactylon, Daucus carota, Elaeis
• the compounds I and IV can also be used in crops which have been made largely resistant to the action of herbicides by breeding and / or using genetic engineering methods.
• the herbicidal compositions or the active compounds can be applied pre- or post-emergence. If the active ingredients are less compatible for certain crop plants, application techniques can be used in which the active ingredients are less compatible for certain crop plants.
• Herbicidal agents are sprayed with the aid of sprayers so that the leaves of the sensitive crop plants are not hit as far as possible, while the active ingredients get onto the leaves of unwanted plants growing underneath or the uncovered ground area (post-directed, lay-by).
• the compounds I or IV or the herbicidal compositions comprising them can be sprayed, for example, in the form of directly sprayable aqueous solutions, powders, suspensions, including high-strength aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, sprays or granules , Atomizing, dusting, scattering or pouring can be used.
• directly sprayable aqueous solutions, powders, suspensions, including high-strength aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, sprays or granules , Atomizing, dusting, scattering or pouring can be used.
• the application forms depend on the purposes; in any case, they should ensure the finest possible distribution of the active compounds according to the invention.
• inert auxiliaries for the production of directly sprayable solutions, emulsions, pastes or oil dispersions: mineral oil fractions from medium to high boiling points such as kerosene or diesel oil, furthermore coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g.
• Paraffins Paraffins, tetrahydronaphthalene, alkylated naphthalenes or their derivatives, alkylated benzenes and their derivatives, alcohols such as methanol, ethanol, propanol, butanol and cyclohexanol, ketones such as cyclohexanone or strongly polar solvents, for example amines such as N-methylpyrrolidone, or water.
• Aqueous use forms can be prepared from emulsion concentrates, suspensions, pastes, wettable powders or water-dispersible granules by adding water.
• the substrates as such or dissolved in an oil or solvent can be homogenized in water by means of wetting agents, adhesives, dispersants or emulsifiers.
• wetting agents adhesives, dispersants or emulsifiers.
• it can also consist of an active substance, wetting agents, adhesives, dispersants or emulsifiers and possibly
• Concentrates containing solvents or oil are prepared that are suitable for dilution with water.
• alkali, alkaline earth, ammonium salts of aromatic sulfonic acids e.g. Lignin-,
• Powders, materials for broadcasting and dusts can be prepared by mixing or grinding the active substances together with a solid carrier.
• Granules for example coated granules, impregnated granules and homogeneous granules, can be prepared by binding the active ingredients to solid carriers.
• Solid carriers are mineral soils like pebbles Acids, silica gels, silicates, talc, kaolin, limestone, lime, chalk, bolus, loess, clay, dolomite, diatomaceous earth, calcium and magnesium sulfate, magnesium oxide, ground plastics, fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas and vegetable products such as Cereal flour, tree bark, wood and nutshell flour, cellulose powder or other solid
• the formulations generally contain between 0.01 and 95% by weight, preferably between 0.5 and 90% by weight, of active ingredient.
• the active ingredients are used in a purity of 90% to 100%, preferably 95% to 100% (according to the NMR spectrum).
• the compounds I and IV according to the invention can be formulated, for example, as follows:
• Dissolved mixture which consists of 80 parts by weight of alkylated benzene, 10 parts by weight of the adduct of 8 to 10 moles of ethylene oxide with 1 mole of oleic acid-N-monoethanolamide, 5 parts by weight of calcium salt of dodecylbenzenesulfonic acid and 5 parts by weight of the adduct of 40 moles of ethylene oxide and 1 mole of castor oil .
• an aqueous dispersion is obtained which contains 0.02% by weight of the active ingredient.
• Dissolved mixture which consists of 40 parts by weight of cyclohexanone, 30 parts by weight of isobutanol, 20 parts by weight of the adduct of 7 moles of ethylene oxide with 1 mole of isooctylphenol and 10 parts by weight of the adduct of 40 moles of ethylene oxide with 1 mole of castor oil.
• Dissolved mixture which consists of 25 parts by weight of cyclohexanone, 65 parts by weight of a mineral oil fraction from the boiling point 210 to 280 ° C and 10 parts by weight of the adduct of 40 moles of ethylene oxide and 1 mole of castor oil. Pouring the solution into 100,000 parts by weight of water and finely distributing it therein gives an aqueous dispersion which comprises 0.02% by weight of the active ingredient. IV. 20 parts by weight of active ingredient No.
• 1.002 are mixed well with 3 parts by weight of the sodium salt of diisobutylnaphthalene- ⁇ -sulfonic acid, 17 parts by weight of the sodium salt of lignosulfonic acid from a sulfite waste liquor and 60 parts by weight of powdered silica gel and ground in a hammer mill. A fine mixture of the mixture in 20,000 parts by weight of water gives a spray liquor which contains 0.1% by weight of the active ingredient.
• the pyrazine derivatives I and IV can be mixed with numerous representatives of other herbicidal or growth-regulating active ingredient groups and applied together.
• diazines for example, diazines
• a dry hydrogen chloride stream is introduced into a solution of 5.3 g (20 mmol) of 2- (trifluoromethylphenoxy) -3-cyano-pyrazine in 320 ml of dry methanol at 0 ° C. until saturated.
• the reaction mixture is cooled to room temperature and after 2 h 320 ml of dist. Water added.
• the solution is extracted with diethyl ether and the organic phase with dist. Washed water, dried over magnesium sulfate, filtered and i. Vak. freed from the solvent.
• the crude product is purified by chromatography (silica gel, cyclohexane / ethyl acetate 10/1 (v / v)). Yield 2.2 g (37%) colorless, crystalline solid, mp. 83-85 ° C.
• liquid active ingredients contained in the table can be characterized by IR or NMR spectroscopy. Below are a selection of the most intense for these compounds
• Plastic flower pots with loamy sand with about 3.0% humus as substrate served as culture vessels.
• the seeds of the test plants were sown separately according to species.
• the active ingredients suspended or emulsified in water were applied directly after sowing using finely distributing nozzles.
• the tubes were lightly sprinkled to promote germination and growth, and then covered with clear plastic hoods until the plants had grown. This cover causes the test plants to germinate evenly, unless this was affected by the active ingredients.
• test plants For the purpose of post-emergence treatment, the test plants, depending on the growth habit, were first grown to a height of 3 to 15 cm and only then treated with the active ingredients suspended or emulsified in water. For this purpose, the test plants were either sown directly and grown in the same containers, or they are first grown separately as seedlings and transplanted into the test containers a few days before the treatment.
• the application rate for post-emergence treatment was 0.5 and 0.25 kg / ha aS.
• the plants were kept at 10-25 ° C and 20-35 ° C, depending on the species.
• the trial period lasted 2 to 4 weeks. During this time, the plants were cared for and their response to each treatment was evaluated. It was rated on a scale from 0 to 100. 100 means no emergence of the plants or complete destruction of at least the aerial parts and 0 means no damage or normal
• the plants used in the greenhouse experiments are composed of the following types:

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

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• 1994
  • 1994-07-25 DE DE4426346A patent/DE4426346A1/de not_active Withdrawn
• 1995
  • 1995-07-24 AU AU31652/95A patent/AU3165295A/en not_active Abandoned
  • 1995-07-24 KR KR1019970700512A patent/KR970704703A/ko not_active Application Discontinuation
  • 1995-07-24 RU RU97103323/04A patent/RU2155756C2/ru active
  • 1995-07-24 US US08/776,150 patent/US5939359A/en not_active Expired - Fee Related
  • 1995-07-24 CA CA002195996A patent/CA2195996A1/en not_active Abandoned
  • 1995-07-24 HU HU9700225A patent/HU219566B/hu not_active IP Right Cessation
  • 1995-07-24 CN CN95195142A patent/CN1159188A/zh active Pending
  • 1995-07-24 JP JP8505473A patent/JPH10506102A/ja active Pending
  • 1995-07-24 ZA ZA956136A patent/ZA956136B/xx unknown
  • 1995-07-24 TW TW084107624A patent/TW328904B/zh active
  • 1995-07-24 WO PCT/EP1995/002924 patent/WO1996003391A1/de not_active Application Discontinuation
  • 1995-07-24 EP EP95927715A patent/EP0773934A1/de not_active Withdrawn

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