37 results about "Mesotrione" patented technology

The present disclosure primarily relates to certain agrochemically active herbicidal combinations comprising (A) diflufenican and (B) mesotrione. The disclosure further relates to the use of these combinations for controlling weeds, in particular for controlling resistant weeds, and to corresponding methods.

The invention belongs to the field of pesticides, and particularly relates to a ternary weeding composition and application thereof. The ternary weeding composition comprises an active component A, an active component B and an active component C with effective weeding amounts, and the active component A is dichloro clomazone or dichloro clomazone; the active ingredient B is isoxaflutole, toprazole fluridone or mesotrione; the active ingredient C is metribuzin. The composition can be used for effectively preventing and removing various weeds such as gramineous weeds and broadleaf weeds, and has the characteristics of expanding the herbicide controlling spectrum, reducing the application amount, generating a synergistic effect, solving resistant weeds and the like.

This invention relates to the fields of environmental pollution remediation and biocatalysis, and provides a method for preparing a self-supplied H2O2 cathode material via an electroenzyme cascade and its application. The cathode material is an ionic liquid-modified CPO-IL. EMB The bio-hybrid material formed by immobilizing molybdenum disulfide-modified MoS2@Co-CNNT composite material, namely CPO-IL EMB / MoS2@Co-CNNT. An electroenzyme cascade degradation system was constructed using this biohybrid material as the cathode. By controlling the electrode potential, controllable H2O2 generation was achieved while protecting the Fe(III) in the iron porphyrin ring of CPO from reduction, thus maintaining the intrinsic oxidative activity of the enzyme. The in-situ generated H2O2 activates CPO-IL. EMB It efficiently catalyzes the oxidative degradation of mesotrione. This invention requires no external CPO-IL. EMB It is green and environmentally friendly, with high degradation efficiency, and has promising applications in agricultural wastewater treatment and environmental remediation.

The invention discloses a paddy field pesticide and a preparation process thereof, and relates to the technical field of paddy field pesticides, the paddy field pesticide comprises the following active components: mesotrione, pyribenzoxim and 2-methyl-4-chloro-phenoxyacetic acid sodium, the mass ratio of mesotrione to pyribenzoxim to 2-methyl-4-chloro-phenoxyacetic acid sodium is (1-10): (1-5): (10-50), and the mass ratio of mesotrione to pyribenzoxim to 2-methyl-4-chloro-phenoxyacetic acid sodium is (1-10): (1-5): (10-50). The mass ratio of the mesotrione to the pyribenzoxim to the 2-methyl-4-chloro-phenoxyacetic acid sodium is (2-5): (1-3): (20-40), and the mass ratio of the mesotrione to the pyribenzoxim to the 2-methyl-4-chloro-phenoxyacetic acid sodium is 3: 1: 30. The paddy field weeding composition which has the advantages of synergistic interaction, broad spectrum, high efficiency, resistance delay, crop safety, convenience in use and the like is successfully developed, the prominent problems in current paddy field weed control are effectively solved, and the paddy field weeding composition has extremely high application value and market prospect.

The invention relates to the technical field of pesticides, in particular to mesotrione soluble liquid as well as a preparation method and application thereof. The mesotrione suspending agent comprises the following components in percentage by mass: 5-40% of mesotrione technical, 5-30% of a solvent, 3-20% of a surfactant, 1-10% of an antifreeze agent, 0.3-3% of a pH regulator and the balance of deionized water. According to the invention, the solubility of mesotrione is improved by selecting proper solvent, antifreezing agent and surfactant and reasonable proportion, so that the soluble liquid with high stability and high drug effect is prepared. The mesotrione soluble liquid can be applied to prevention and removal of weeds in uncultivated land and cultivated land, and does not cause phytotoxicity to crops. The herbicide is an agricultural herbicide which is good in weeding effect, simple in production process and free of environmental pollution.

The application relates to a preparation method of a mesotrione intermediate. S1, 3-chloro-2-methyl aniline, hydrochloric acid and pure water are placed in a reaction kettle, stirring, cooling, dropwise addition of a NaNO2 solution, after dropwise addition is completed, temperature control is carried out, CH3SNa aqueous solution is added, after dropwise addition is completed, slow temperature rising is carried out, and reaction is continuously carried out for 8 hours; extraction, water washing and distillation are sequentially carried out, and 1-chloro-2-methyl benzyl sulfide is obtained; S2, under the atmosphere of nitrogen, formylation reagent is added into a reaction kettle under the condition of 0-10 DEG C, a catalyst is dropwise added and stirring is carried out, 1-chloro-2-methyl benzyl sulfide is dropwise added, temperature rising is carried out, and 2-chloro-3-methyl-4-methylthio benzaldehyde is obtained through post-treatment; S3, under the atmosphere of nitrogen, methanol, 2-chloro-3-methyl-4-methylthio benzaldehyde and sodium tungstate dihydrate are added into a reaction kettle, hydrogen peroxide is dropwise added, the reaction temperature is controlled, and reaction is carried out, and the mesotrione intermediate is obtained through post-treatment.

The present invention is directed to an aqueous composition comprising a mixture of epyrifenacil, mesotrione and pyroxasulfone. The present invention is further directed to methods of controlling weeds by applying the compositions of the present invention to a weed or an area in need of weed control.

The invention belongs to the technical field of herbicides, and particularly relates to a preparation method of a sugarcane field herbicide containing mesotrione, triclopyr and halosulfuron-methyl, and the preparation method comprises the following steps: S1, preparing mesotrione salt; s2, preparing triclopyr acetate; s3, preparation of a dosage form: adding auxiliary components which are allowed to be added in pesticide science into the mesotrione salt, the triclopyr and the halosulfuron-methyl active compound to prepare the pesticide preparation. According to the invention, the stability problem of compounding of three effective components, namely mesotrione, triclopyr and halosulfuron-methyl, is successfully solved, the compound herbicide with stable performance is prepared, and the market blank is filled; the production process is simplified, the production and packaging material cost is reduced, the production of packaging waste is reduced, and the environmental protection requirement is met; when farmers use the pesticide, independent proportioning is not needed, the operation is more convenient, and the pesticide application efficiency is improved; the product accords with national supervision policies on pesticide products, and can provide support for standard operation of production enterprises and scientific pesticide application of farmers.

The application relates to a device for degrading a methasulfocarb pesticide by using a double-chamber bioelectrochemical system and a degradation method thereof, and relates to the field of degradation of methasulfocarb pesticide wastewater.The device comprises an anode system and a cathode system, and the methasulfocarb pollutants are located in the cathode system.The method is to use a bioelectrochemical reduction technology in the cathode system, to strengthen the methasulfocarb pesticide wastewater treatment under the action of a constant voltage through the synergistic effect of electrophilic microorganisms of a biological cathode and an electrode.The application has the characteristics of simple operation, low cost, low energy consumption and high degradation efficiency.The application is suitable for repairing soil or water pollution containing the methasulfocarb pesticide.

The application discloses a rape chemical growth retardant, a preparation method and application thereof, and belongs to the field of agricultural technology. A kind of rape chemical growth retardant is prepared by mixing difenoxure solution and mesotrione according to the proportion of 7.5mL:15g.The rape chemical growth retardant can improve the dehydration efficiency of rape after acting on rape, and can also improve the offspring yield of rape seed, increase seed vigor, improve germination potential and germination rate and other factors, providing a new method for improving rape mechanization seed production, breeding efficiency and seed quality.The active ingredients of the product are two low-toxicity desiccants, which have low toxicity residue, weak toxicity, low cost, good effect and other characteristics.

The invention discloses an HPPD inhibitor with a morpholine cyclic carbonyl structure, a composition and application, and belongs to the field of herbicides. The HPPD inhibitor with the morpholine cyclic carbonyl structure, provided by the invention, has a relatively good control effect on broadleaf weeds and grassy weeds. The preferable compound still keeps super-efficient herbicidal activity on selected weeds at the extremely low concentration of 9.375 g ai / ha, is superior to that of a commercially available HPPD inhibition type herbicide mesotrione, and shows absolute advantages for a malignant weed brome in a wheat field. Meanwhile, the compound is high in crop safety, the preferable compound has no damage to wheat and peanuts under the dosage of 150 g ai / ha, the inhibition rate of the preferable compound to various crops is remarkably lower than that of mesotrione even under the high concentration of 600 g ai / ha, and the compound is a selective herbicide with excellent development potential.

The invention relates to the technical field of pesticides, in particular to a herbicidal composition, preparation and application thereof. The herbicidal composition comprises a component A and a component B, wherein, the component A is benzylazole, and the component B is at least one of acetochlor, butachlor, metolachlo, dimethylphenoxychlor, mesotrione, nicosulfuron, atrazine, terbuthylazine, metribuzin, S-metolachlor and dimethylphenoxychlor. The weight ratio of the component A to the component B is 1:(1-80).

The present application relates to the technical field of mesotrione, and particularly relates to a preparation method of mesotrione intermediate, which comprises the following steps: (1) a first reaction of a compound shown in formula (II) and sodium thiomethoxide in the presence of a first solvent to obtain a compound shown in formula (III); (2) a second reaction of the compound shown in formula (III) and hydrogen peroxide in the presence of a second solvent under the action of a catalyst to obtain a compound shown in formula (IV); (3) a third reaction of the compound shown in formula (IV) and acid liquor to obtain mesotrione intermediate shown in formula (I); wherein R1 is selected from F, Cl, Br or I; and R2 is selected from C1-C4 alkyl or aromatic group. The method can effectively improve the purity and yield of mesotrione intermediate.

The application relates to the field of pesticide formulations, and particularly discloses a dispersible oil suspension agent containing nicosulfuron, mesotrione and atrazine and a preparation method thereof. The dispersible oil suspension agent containing nicosulfuron, mesotrione and atrazine comprises the following raw materials in mass percentage: 38.2-45.1% of effective substance, 0.5-1% of dispersant, 12-14% of emulsifier, 0.3-0.5% of thickening agent, and the rest is methyl oleate, wherein the effective substance is mesoporous silica loaded with effective components; in addition, the preparation method has the advantages of improving the stability of the composite herbicide.

The present disclosure provides a compound weeding composition for a sugarcane field. Active ingredients of the weeding composition are mesotrione, ametryn, and fluroxypyr-meptyl, and a weight ratio of the mesotrione to the ametryn to the fluroxypyr-meptyl is 1-50:1-70:1-50.

The present disclosure provides herbicidal compositions comprising mesotrione and ethoxylated lecithin and methods for controlling unwanted plant growth.

The present application discloses a kind of corn field's herbicidal water dispersible granule, active ingredient includes mesotrione, ametryn and dichlorprop. Compared with the existing single active ingredient preparation, the herbicidal water dispersible granule of the present application adopts triple action mechanism, in addition to having significant herbicidal effect, but also can expand the herbicidal spectrum;Water dispersible granule has high suspension rate, strong hard water resistance, suitable for different regions corn field a variety of malignant weed control, such as barnyard grass, crabgrass, green dogtail grass, senna, amaranthus retroflexus, chenopodium etc., stable efficacy, long persistence, less preparation residue, can significantly reduce the resistance of weed EC 50 , and no phytotoxicity to crops, good safety, in line with the safety requirements of pesticide preparation.

The invention relates to the technical field of chemical pharmacy, and discloses a method for preparing a topramezone intermediate 3-(4, 5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl) benzoic acid, which comprises the following steps: S1, taking 3-(3-halo-2-methyl-6-(methylsulfonyl) phenyl)-4, 5-dihydroisoxazole as an initial raw material, and reacting at the temperature of 50-60 DEG C for 1-2 hours to obtain a topramezone intermediate 3-(4, 5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl) benzoic acid; under the catalysis of a metal catalyst, carrying out carbonyl insertion reaction on the intermediate carboxylic acid ester and formate to prepare an intermediate carboxylic acid ester; s2, the carboxylic ester is subjected to a hydrolysis reaction, and a target compound I, namely, 3-(4, 5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl) benzoic acid, is prepared. A target product is synthesized through a carbonyl insertion reaction and a two-step reaction, and the reaction steps are short. Compared with carbon monoxide, carbon monoxide is replaced by formate, so that the loss of carbon monoxide is reduced, the raw materials are easily available, the transportation and supply are convenient, and the reaction yield is better.

The invention discloses a salt compound of mesotrione, a novel crystal form of mesotrione, and a preparation method and application of the mesotrione. The preparation method of the novel mesotrione crystal form comprises the following steps: (1) mixing mesotrione, an alkaline substance and a solvent to obtain a material to be crystallized; (2) crystallizing the material to be crystallized to obtain a new crystal form of mesotrione; during crystallization treatment, the pH value of a crystallization system is greater than or equal to 4. Starting from the mesotrione compound, a series of mesotrione dominant crystal forms with higher chemical stability are screened and developed through the preparation method, meanwhile, the biological activity is improved, and the mesotrione crystal form has a great application prospect.

A transgenic soybean event, Gm_CSM63714, is provided. Transgenic plant cells, plant parts, plants, seeds, progeny plants, and agricultural and commodity products containing event Gm_CSM63714 are also provided. Recombinant DNA molecules unique to the event Gm_CSM63714, and methods of using and detecting Gm_CSM63714 are also provided. Soybean plants containing the event Gm_CSM63714 exhibit tolerance to benzoic acid auxins such as dicamba; phenoxy auxins such as 2,4-D; inhibitors of glutamine synthetase such as glufosinate; and P-triketone inhibitors of 4-hydroxyphenylpyruvate dioxygenase (HPPD) such as mesotrione.

The invention belongs to the technical field of pesticide weeding, and discloses a weeding composition and application thereof.The weeding composition comprises an active ingredient A, an active ingredient B and an active ingredient C. The active ingredient A is saflufenacil, the active ingredient B is nicosulfuron, and the active ingredient C is any one of topramezone or mesotrione; the mass ratio of the active component A to the active component B to the active component C is 1: (0.25-4): (0.25-16). The composition disclosed by the invention is high in safety to crops, accords with a green agriculture trend, and promotes sustainable development and improves comprehensive ecological benefits by delaying resistance and reducing dosage.

The present invention is directed to an aqueous composition comprising a mixture of epyrifenacil, mesotrione and pyroxasulfone. The present invention is further directed to methods of controlling weeds by applying the compositions of the present invention to a weed or an area in need of weed control.

This invention provides a compound herbicidal composition comprising mesotrione, atrazine, and cypermethrin, which is prepared as a suspension concentrate. By using specific adjuvants, it solves the problems of decomposition of mesotrione and cypermethrin, and crystallization of atrazine. The product is stable for a long time, has a long shelf life, and can also broaden the herbicidal spectrum and improve the herbicidal effect. It can solve the problem of weed resistance to mesotrione single agent and binary compound products.

This invention relates to the field of herbicide technology, specifically to a method for preparing a sulfadiazine intermediate, comprising: (1) reacting 3,4-dichloronitrobenzene, methyl cyanoacetate, and a first base in the presence of a first solvent to obtain a compound of formula (II); (2) reacting the compound of formula (II) with sodium methanethiol in the presence of a second solvent to obtain a compound of formula (III); and (3) reacting the compound of formula (III) with a second base and hydrogen peroxide in the presence of a third solvent to obtain the sulfadiazine intermediate of formula (I). This method has the advantages of mild reaction conditions, high reaction yield and purity, and low cost, making it suitable for industrial production.

The utility model belongs to the technical field of dicyclomet, atrazine dispersible oil suspending agent mixing, and disclose a kind of dicyclomet, atrazine dispersible oil suspending agent mixing device for spraying, including mixing box, the top left side of the mixing box is equipped with dosing pipe one, the outside spiral of dosing pipe one is equipped with sealing cover, the top of sealing cover is equipped with mixing assembly;The mixing assembly includes motor fixed with the sealing cover, the main shaft end of motor is equipped with transmission shaft, the medicine spraying soft belt structure in the mixing assembly located at the bottom of mixing box, can be by high-speed swing mode, dicyclomet, atrazine dispersible oil suspending agent inside hollow tube is directly mixed with water stirring, and smaller medicine outlet, can effectively avoid a large amount of dicyclomet, atrazine dispersible oil suspending agent directly swing out, mixing is not enough uniform condition, keep that mixing concentration is more uniform.

The invention belongs to the field of compound preparation, and particularly relates to a preparation method of a mesotrione enol ester intermediate. The method comprises the following steps: by taking 2-nitro-4-methylsulfonylbenzoic acid and 1, 3-cyclohexanedione as raw materials, carrying out high-temperature reaction in a system of a condensing agent and a catalyst to obtain the mesotrione enol ester intermediate, according to the method, acid and ketone are directly subjected to condensation reaction, a traditional route that acid is subjected to acylating chlorination and then reacts with ketone is not used, thionyl chloride is avoided, toxic gases such as hydrogen chloride and sulfur dioxide are not generated in the reaction process, the reaction safety is improved to a great extent, the raw material consumption is reduced, and the environmental influence is reduced.

3-chloro-2-methyl phenyl dimethyl sulfide is a key intermediate for synthesizing tembotrions, and the target product 3-chloro-2-methyl phenyl dimethyl sulfide is finally synthesized by taking 3-chloro-2-methylaniline and sodium methyl mercaptide as raw materials through diazotization and methyl mercaptan. In order to solve the danger problem existing in the diazotization production process, the invention provides a production process for continuous production of 3-chloro-2-methylphenyldimethyl sulfide in the micro-channel reactor, and the production process has the advantages that compared with a traditional reaction kettle, the micro-channel reactor is provided with a reaction channel with a small diameter, so that the yield of 3-chloro-2-methylphenyldimethyl sulfide is increased; and the catalyst has the advantages of large specific surface area, large volume ratio, high mass transfer and heat transfer efficiency, good operability, no obvious amplification effect and the like. Particularly, the risk of over-temperature explosion in the diazotization reaction process is greatly reduced due to the efficient heat transfer efficiency and the tiny material holding amount of the microreactor.

The present invention belongs to the field of pesticides, and specifically relates to a ternary herbicidal composition and the use thereof. The ternary herbicidal composition comprises herbicidally effective amounts of active ingredient A, active ingredient B and active ingredient C, wherein the active ingredient A is (I) or bixlozone; the active ingredient B is isoxaflutole, fenpyrazone, (II) or mesotrione; and the active ingredient C is metribuzin. The composition can effectively control a variety of weed problems such as gramineous and broadleaf weeds, and has the characteristics of an expanded herbicidal spectrum, a reduced application amount, synergistic effects, the ability to solve the problem of resistant weeds, etc.

The application belongs to the field of pesticides, and particularly relates to a ternary herbicidal composition and application thereof. The ternary herbicidal composition comprises active ingredient A, active ingredient B and active ingredient C in a herbicidal effective amount, wherein the active ingredient A is active ingredient B is atrazine or terbuthylazine; and the active ingredient C is mesotrione, benzofluor or metazachlor. The composition can effectively prevent and remove various weed problems such as weeds of the family Poaceae and broadleaf weeds, and has the characteristics of expanding the herbicidal spectrum, reducing the application amount, being capable of producing a synergistic effect and solving the problem of resistant weeds.

The application discloses application of mesotrione in improving crop yield, and the mesotrione has the following uses: improving rice yield, improving effective panicle number of rice, improving grain number per panicle of rice, improving thousand-grain weight of rice, improving wheat yield, improving corn yield and improving potato yield. The application improves crop yield by spraying the mesotrione on the leaf surface of crops (rice, wheat, corn and potato); the mesotrione has low toxicity, is easy to decompose, has little influence on human body and has high safety; the application of the mesotrione in crop growth has low concentration and different use mode from that of the mesotrione as a herbicide in soil and weeds, the application expands the application of the mesotrione and develops a new technical scheme for improving crop yield.