WO2010034153A1 - Nouveaux composés esters d'acide 2-pyrimidinyloxy(sulfo)benzoxyoléfinique et leurs utilisations - Google Patents
Nouveaux composés esters d'acide 2-pyrimidinyloxy(sulfo)benzoxyoléfinique et leurs utilisations Download PDFInfo
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- WO2010034153A1 WO2010034153A1 PCT/CN2008/072516 CN2008072516W WO2010034153A1 WO 2010034153 A1 WO2010034153 A1 WO 2010034153A1 CN 2008072516 W CN2008072516 W CN 2008072516W WO 2010034153 A1 WO2010034153 A1 WO 2010034153A1
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- compound
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- pyrimidinyloxy
- hydrazine
- alkyl
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/60—Three or more oxygen or sulfur 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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
Definitions
- the present invention belongs to the field of herbicides, and specifically relates to 2-pyrimidinyloxy(thio)benzoyl enoate compounds and uses thereof.
- R is a hydroxyl group, a lower alkoxy group or -0-(CH 2 ) nR 3 (wherein R 3 is a lower alkoxycarbonyl group or the like, n is an integer of 1 or 2) and the like.
- 1 ⁇ is COOR4 (hydrogen, dC 6 alkyl group, a benzyl group, alkali metal atom, an alkaline earth metal atom or an organic ammonium) and the like.
- R is an OR 3 group ⁇ R 3 is a hydrogen atom, d 4 alkyl (wherein the alkyl group may be substituted by the following group: R'COO- (R' is a d- 8 alkyl) or d- 8 alkoxycarbonyloxy Base, etc.), C 2 -8 alkenyl or halogenated C 2 -8 alkenyl, etc.
- An object of the present invention is to provide a novel 2-pyrimidinyloxy(thio)benzoyl enoate compound and its use as a herbicide.
- the present invention provides a novel 2-pyrimidinyloxy(thio)benzoyl enoate compound as shown in the general formula (I) or (II):
- X is selected from oxygen or sulfur
- R 2 is selected from CC 3 alkyl, C 3 -C 5 alkenyl or C 3 -C 5 alkynyl;
- R 3 is selected from CC 3 alkyl, C 3 -C 6 alkenyl or C 3 -C 6 alkynyl.
- a more preferred compound of the present invention is in the formula (I) or ( ⁇ )
- X is selected from oxygen or sulfur
- R 2 is selected from dC 3 alkyl
- R 3 is selected from the group consisting of CC 3 alkyl.
- More preferred compounds of the invention are those of formula (I) or (II)
- X is selected from oxygen or sulfur; Selected from H, chloro, acetyl, 4,6-dimethoxypyrimidin-2-yl or the following groups:
- the nitrogen bond and the methyl group on the double bond are cis or trans;
- R 2 is selected from ethyl
- R 3 is selected from a methyl group.
- the alkyl group represented by the formula (I) or (II) includes a linear or branched alkyl group.
- the alkenyl group means a group having 1 to 2 carbon-carbon double bonds in a straight-chain or branched form, such as a propenyl group, an allyl group and the like.
- An alkynyl group means a group having 1 to 2 carbon-carbon triple bonds in a straight or branched form, such as propynyl, propargyl and the like.
- Halogen includes fluorine, chlorine, bromine, and iodine.
- the compound of the formula (I) of the present invention can be produced by a method wherein the X, Ri R 2 and R 3 groups are as defined above. method one:
- Compound (V) and a suitable base are added to a mixed solvent of a suitable organic solvent and water at a temperature of
- the reaction is carried out at -10 ° C to the boiling point for 0.5 to 48 hours, and the reaction solution is acidified with hydrochloric acid or sulfuric acid to obtain an intermediate acid, Compound (VI).
- the organic solvent is selected from the group consisting of chloroform, dichloromethane, carbon tetrachloride, n-hexane, benzene, toluene, ethyl acetate, methanol, ethanol, tetrahydrofuran or dioxane;
- the base is selected from the group consisting of sodium hydroxide, potassium hydroxide, and carbonic acid. Sodium or potassium carbonate, etc.
- Compound (VI) and compound (VII) (for the preparation of VII, see Synthetic Chemistry, 13(3), 315-316, (2005)) are dissolved in a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethyl methacrylate. Amide, tetrahydrofuran or dioxane; etc.
- the alkali substance such as triethylamine, pyridine, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, etc., is favorable for the reaction, and the reaction is carried out at a temperature of -10 ° C to the boiling point for 0.5 to 48 hours to prepare a compound (1).
- Y may be chlorine, bromine or iodine.
- the compound (IV-1) and the compound (VII) are dissolved in a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane, etc.; and a base such as triethylamine is added.
- a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane, etc.
- a base such as triethylamine is added.
- Pyridine, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate or the like is advantageous for the reaction, and the reaction is carried out at a temperature of from -10 ° C to the boiling point for 0.5 to 48 hours to obtain a compound (VIII).
- Y may be chlorine, bromine or iodine.
- the compound (VIII) and the compound (III) are dissolved in a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane; and a base such as triethylamine is added.
- a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane
- a base such as triethylamine
- the compound of the formula (II) of the present invention can be produced by a method wherein the X, Ri R 2 and R 3 groups are as defined above. method one:
- Compound (VI) and compound (IX) (for the preparation of IX, see CN1927811) are dissolved in a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane; Such as triethylamine, pyridine, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, etc., the reaction is favorable, the temperature is between -10 ° C and the boiling point Compound (11) is obtained in an amount of from 0.5 to 48 hours.
- Z may be chlorine, bromine or iodine t method two:
- the compound (IV-1) and the compound (IX) are dissolved in a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane; and a base such as triethylamine is added.
- a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane
- a base such as triethylamine is added.
- Pyridine, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, etc. have a reaction for the reaction, and the reaction is carried out at a temperature of -10 ° C to the boiling point for 0.5 to 48 hours to obtain a compound ( ⁇ ).
- hydrazine may be chlorine, bromine or iodine.
- the compound (X) and the compound (III) are dissolved in a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane; and a base such as triethylamine is added.
- a suitable solvent such as toluene, acetone, hydrazine, hydrazine-dimethylformamide, tetrahydrofuran or dioxane
- a base such as triethylamine
- a mixture of a nitrogen-oxygen bond and a double bond may be a J ⁇ or trans compound, or a mixture of cis and trans compounds in different proportions.
- the compound of the formula (I) or (II) of the present invention has unexpectedly high herbicidal activity compared to known alkyl ester compounds, and is effective for use in pre- and post-emergence at lower doses. Control single and double cotyled weeds. Therefore, the technical solution of the present invention includes the use of the compound of the formula (I) or (II) for controlling weeds.
- the present invention also encompasses a herbicidal composition having the compound of the formula (I) or (II) as an active ingredient.
- the herbicidal composition has a concentration of the active ingredient of from 5 to 90% by weight.
- an agriculturally acceptable carrier is also included in the herbicidal composition.
- the herbicidal compositions of the invention can be administered in a variety of formulations.
- the compound of the present invention is usually dissolved or dispersed in a carrier to prepare a formulation to be more easily dispersed as a herbicide.
- a carrier for example: These chemicals can be formulated as wettable powders or creams. Therefore, in these compositions, at least one liquid or solid carrier is added, and it is usually necessary to add a suitable surfactant.
- a further embodiment of the present invention is a method of controlling weeds which comprises applying a herbicidally effective amount of the herbicidal composition of the present invention to the surface of the weed or the weed growing or the surface of the growth medium thereof.
- a more suitable effective amount is usually selected from 10 g to 1000 g per hectare, and an effective amount is preferably 20 g to 500 g per hectare.
- one or more additional herbicides may be added to the herbicidal compositions of the present invention, thereby providing additional advantages and benefits.
- the compound of the present invention may be used alone or in combination with other known insecticides, fungicides, plant growth regulators or fertilizers.
- the temperature was 40-6 (rC, after stirring for 8 hours, ethyl acetate 200 mL and water 180 mL were added to the reaction solution, and the organic phase was washed with 180 mL of a saturated aqueous solution of sodium chloride, and then anhydrous magnesium sulfate was used.
- the original pharmaceutically acceptable acetone or dimethyl sulfoxide is dissolved, and then 1% is used.
- the Tween 80 solution is formulated into a desired concentration of 50 mL of the test solution, and the content of acetone or dimethyl sulfoxide in the total solution is not more than 10%.
- Spray treatment was carried out using a crawler crop sprayer (designed and manufactured by Engineering Research Ltd., UK) (spray pressure 1.95 kg/cm 2 , spray volume 50 ml/m 2 , crawler speed 30 cm/s, nozzle nozzle fan).
- Pre-emergence test The seeds of quantitative weeds (ramie, valerian, and crabgrass) were separately planted in culture rafts with a cross-sectional area of 100 cm 2 , and the soil was covered with soil for 1 cm after sowing. The test compound was sprayed on the soil surface and placed after treatment. The greenhouse is then watered to 1%. Tween 80 was placed in tap water treatment as a control.
- the seeds of the quantitative weeds were separately planted in a culture raft having a cross-sectional area of 100 cm 2 , and the soil was covered with lcm after sowing, and cultured in a greenhouse according to a conventional method.
- the test materials are selected to be sprayed after the seedlings are sprayed to 1%.
- Tween 80 was placed in tap water treatment as a control. After the test materials are treated, they are placed in a dry and ventilated place. After the liquid is naturally dried, it is placed in a greenhouse and managed according to conventional methods. 48 hours after treatment. The method of watering from the bottom is adopted to prevent the liquid from being washed away.
- Compound 12 was selected in parallel with the known compound Kd (Compound 17 in EP0223406) for herbicidal activity. The results are shown in Table 5.
Abstract
L'invention porte sur des composés esters d'acide 2-pyrimidinyloxy(sulfo)benzoxyoléfinique représentés par la formule générale (I) ou (II), les groupes substituants dans lesdites formules générales étant définis comme dans la présente description. Les présents composés représentés par la formule générale (I) ou (II) sont des agents actifs herbicides. Par comparaison avec les composés connus de l'état de la technique, les présents composés peuvent être utilisés pour une lutte efficace contre des mauvaises herbes à feuilles simples/doubles avec un dosage beaucoup plus faible dans la phase de pré-germination et/ou de post-germination.
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PCT/CN2008/072516 WO2010034153A1 (fr) | 2008-09-25 | 2008-09-25 | Nouveaux composés esters d'acide 2-pyrimidinyloxy(sulfo)benzoxyoléfinique et leurs utilisations |
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PCT/CN2008/072516 WO2010034153A1 (fr) | 2008-09-25 | 2008-09-25 | Nouveaux composés esters d'acide 2-pyrimidinyloxy(sulfo)benzoxyoléfinique et leurs utilisations |
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WO2013040021A1 (fr) | 2011-09-13 | 2013-03-21 | Monsanto Technology Llc | Procédés et compositions de lutte contre les mauvaises herbes |
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CN108558777B (zh) * | 2018-07-31 | 2021-01-26 | 河北大学 | 嘧啶水杨酸类衍生物及其制备方法与应用 |
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