97 results about "Sulfentrazone" patented technology

The invention discloses a method for synthesizing difluoro methyl triazoline-ketone and sulfentrazone. The method comprises the following steps: taking 1-aryl-3-methyl-1H-1,2,4-triazole-5-ketone as a raw material, dehydrating and salifying by an aprotic solvent under synergism of an alkali metal hydroxide and alkali carbonate to obtain an intermediate (II), using an aprotic polar solvent for solvent displacement, performing difluoro methylation to obtain difluoro methyl triazoline-ketone (III), steps of chlorination, nitrification, reduction and methyl sulfonylation are carried out to obtain N-(2,4-dichloro-5-(4-difluoro methyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazole-1-group)phenyl) methanesulfonamide target product. The method has the beneficial effect that the integral technology is simple, the reaction condition is mild, technology is safe, yield is high, product quality is high, and the method is benefit for industrial production.

A method of controlling a weed, which exhibits high herbicidal activity, without causing significant phytotoxicity on switchgrass, miscanthus, giant reed, reed canarygrass, blue stem, erianthus, napier grass or spartina. A method is provided of controlling a weed at a place where switchgrass, miscanthus, giant reed, reed canarygrass, blue stem, erianthus, napier grass or spartina grows, including applying an effective amount of a protoporphyrinogen oxidase inhibiting compound as an active ingredient to a place where switchgrass, miscanthus, giant reed, reed canarygrass, blue stem, erianthus, napier grass or spartina grows or will grow; and the method of controlling a weed at a place where switchgrass, miscanthus, giant reed, reed canarygrass, blue stem, erianthus, napier grass or spartina grows or will grow, wherein the protoporphyrinogen oxidase inhibiting compound is one or more compounds selected from the group consisting of flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen, fomesafen and a compound represented by the following formula (I):

The invention discloses a preparation method of sulfentrazone. The sulfentrazone is obtained by performing reaction on aniline triazolinone and methyl sulfonate under the existence of a catalyst; andthe catalyst is dimethyl halogenated matte. According to the preparation method of the sulfentrazone, a reaction system is improved; methylsufonyl chloride is replaced with stable and easy-to-store methyl sulfonate; use of high-corrosivity methylsufonyl chloride, triethylamine and pyridine is avoided, salt-containing waste water is avoided and the preparation method is good for environmental protection. An amino compound is activated through a specific catalyst, so that side effects are few, the use amount of the raw materials is small and the yield and the content are increased.

The invention discloses an isoxaflutole/sulfentrazone-containing weedicide composition and application thereof. The composition is prepared by compounding isoxaflutole and sulfentrazone in a mass ratio of 1:(1-10) under favorable synergistic actions. The composition is capable of enhancing the drug effects, lowering the dosage, saving the economic cost, greatly reducing the consumption of the single active component, enhancing the safety for crops and reducing the agent residues in the environment; and the composition is also capable of postponing the generation of weed drug resistance and prolonging the service life of the agent, and has favorable effects on preventing and removing annual weed in the corn field.

The invention discloses a synthesizing method of sulfentrazone. The synthesizing method comprises the following steps of using a compound (II) as the raw material, and performing difluoro methylation,chlorination and bromination; then, performing methylsulfonylation, so as to obtain the final product of the sulfentrazone. The synthesizing method has the advantages that the obtained intermediate after chlorination is firstly brominated, and then the obtained intermediate after bromination and the methanesulfonamide are catalyzed by a catalyst to obtain the sulfentrazone; the chemical selectivity is high, and the dangerous technologies of nitrification, hydrogenation and the like in the traditional technology route are avoided; the production of a large amount of waste acid and waste waterin the nitrification process is avoided, the green effect is better, the efficiency is higher, and the safety and reliability are higher; the whole technology is simple and convenient, and the reaction conditions are mild; by adjusting the reaction conditions, the yield rate of the obtained product is high, the quality of the product is high, and the synthesizing method is suitable for industrialized production.

The invention belongs to the technical field of pesticides and discloses a mixed herbicide containing sulfentrazone and haloxyfop-R-methyl. The sulfentrazone and the haloxyfop-R-methyl are employed in the herbicide as main active components according to the mass ratio of 0.1-80:0.1-80. The mixed herbicide can be applied for weeding fields of soya beans, sunflowers and peanuts, is wide in herbicidal spectrum, is quick in effect, is low in residue, is low-toxicity and is safe and environment-friendly, and is an excellent chemical herbicide for the soya beans, sunflowers, peanuts and the like crops.

The present invention provides a method for post-emergence selective weed control in turf sites by applying an herbicidal composition comprising sulfentrazone and quinclorac to a locus where weeds are present.

The invention discloses a soybean weeding microemulsion and a preparation method thereof. The soybean weeding microemulsion is prepared from 10 to 30 parts of isopropylamine salt of glyphosate, 10 to 20 parts of sulfentrazone, 10 to 20 parts of emulgators of dioctyl sulfosuccinate sodium salt, 7 to 12 parts of glycerol, 7 to 15 parts of imazaquin, 10 to 20 parts of surface active agents, 5 to 12 parts of fulvic acid, 10 to 15 parts of chitin, 10 to 15 parts of haloxyfop-R-methyl, 5 to 10 parts of defoaming agents and 1 to 3 parts of preservatives. The soybean weeding microemulsion has the advantages that the preparation process is simple; the preparation process achieves the environment-friendly and pollution-free effects; the prepared soybean weeding microemulsion can be used for effectively clearing weed in soybeans without damaging the soybeans; residues cannot pollute soil or environment.

The invention discloses a soybean field herbicide. The herbicide comprises the following raw materials in parts by weight: 6-8 parts of sulfentrazone, 4-6 parts of an emulsifier, 5-7 parts of benzoic acid, 3-5 parts of pendimethalin, 2-4 parts of bentazone, 2-4 parts of acetochlor, 3-5 parts of oxyfluorfen, 3-5 parts a surfactant, 2-4 parts of terbuthylazine, and 5-15 parts of water. The preparation method is simple and environment-friendly, the weeding is excellent in effect and broad in spectrum, the herbicide dosage is low, and the pollution is less.

The invention provides a weed control composition containing ametryn, sulfentrazone and flazasulfuron and an application thereof, which relate to the weed control composition. The weed control composition comprises the ametryn, the sulfentrazone and the flazasulfuron which serve as active materials. The invention also relates to a method for disposing unwanted plants by using the weed control composition. The weed control composition contains the active materials which are the ametryn, sulfentrazone and flazasulfuron. According to the weed control composition, the weight ratio of the ametryn to the sulfentrazone is (30:1)-(1:30), the weight ratio of the ametryn or sulfentrazone to the flazasulfuron is (90:1)-(1:10), and the total weight of the ametryn, sulfentrazone and flazasulfuron accounts for 5-95% of the weight of the weed control composition. The weed control composition is mainly used for preventing and killing off weeds, especially cyperus rotundus in sugar crane farms, corn fields, citrus orchards and other places.

The invention relates to post-emergence herbicide composition containing topramezone, sulfentrazone and atrazine and used for corn. Active ingredients of the herbicide composition comprise topramezone, sulfentrazone and atrazine in the weight ratio being (0.1-70): (0.1-70): (0.1-80). The herbicide composition can control annual gramineous weeds in a corn field, can control broadleaf weeds and nutgrass flatsedge and has a remarkable weed control effect and a prominent synergism effect; besides, the herbicide composition can control weeds in the whole growth period of crops after one-time application, has no influence on succeeding crops and is ideal herbicide.

The invention relates to the technical field of pesticides, and discloses a suspension emulsion containing sulfentrazone and s-metolachlor and a preparation method thereof. The suspension emulsion isprepared from sulfentrazone, s-metolachlor, wetting dispersant, an emulsifying agent, an antifreezing agent, a thickening agent, a defoaming agent, a preservative and water. The type of suspension emulsion additive can be adjusted against the medicinal characteristics of sulfentrazone and s-metolachlor, the whole suspension emulsion can achieve optimized suspension property, and relatively low foamability and other physiochemical performance in high-concentration hard water after the components are combined. The suspension emulsion is especially suitable for countries and regions having relatively high water hardness.

The invention belongs to the technical field of agricultural herbicides and provides a herbicide composition with sulfentrazone and fluroxypyr. The weight ratio of the sulfentrazone to the fluroxypyris (16:1)-(0.25:1). Advantages of the two single agents, namely the sulfentrazone and the fluroxypyr, are combined, advantages of weed control spectrums are complemented by each other, good fast-acting properties and long-lasting effects can be achieved, and the herbicide composition has a very good effect on test field weeds such as flixweed, shepherd's purse and galium aparine. By adopting the herbicide composition, herbicide controlling spectrums are widened, prevention effects are improved, the consequence that the drug resistance of weeds can be rapidly caused when a single herbicide is used can be avoided, drug resistance of the weeds can be retarded, the chemical amount can be reduced, the use cost can be reduced, and the environmental pollution can be alleviated.

The invention discloses a herbicide composition for a sunflower field. The herbicide composition contains three effective components including s-metolachlor, flumioxazin and sulfentrazone, wherein themass ratio of the three effective components is (1-60): (0.1-10): (1-50), and the sum of mass percentages of the three effective components in the composition is 1-80%. Compared with a single agent or a binary combination having the same effective components, the herbicide composition disclosed by the invention is obvious in synergistic effect and capable of effectively expanding a herbicide control spectrum. The herbicide composition disclosed by the invention is suitable for preventing and removing most of grassy and broadleaf weeds in the sunflower field and safe for sunflowers.

The invention discloses a weeding composition for preventing and controlling weeds in a peanut field. The weeding composition comprises active ingredients including sulfentrazone and clethodim in the weight ratio of 0.01:1 to 100:1, and the weight of the active ingredients is 1%-95% of the total weight of the weeding composition. The weeding composition is in a form of wettable powder, water dispersible granule, oil suspending agent, dry suspending agent, granule, missible oil, emulsion in water, microemulsion or suspension emulsion. After the weeding composition is compounded, the herbicide controlling spectrum can be expanded, broadleaf weeds and grassy weeds can be removed, and the weeding composition has remarkable synergism. The weeding composition has a long optimum period of application, can be sprayed to soil before emergence, also can be sprayed to stems and leaves after emergence, has a low influence to the environment, is safe to current crops and afterreap crops, is safe to peanuts and is also suitable for various peanut varieties.

The invention relates to a compound herbicide containing glufosinate-ammonium and high-efficiency haloxyfop-methyl. The herbicide comprises the following main active ingredients: A, B and C, wherein Ais glufosinate-ammonium, B is high-efficiency haloxyfop-methyl, C is any one of selected from a group consisting of fluoroglycofen ethyl, oxyfluorfen and sulfentrazone, and a weight ratio of A to B to C is 1-100: 1-60: 1-60. The herbicide of the invention is used for treating post-emergence stems and leaves and preventing and eliminating grassy weeds, sedge weeds and broadleaf weeds.

The invention discloses a novel weeding composition and application thereof. The novel weeding composition is prepared from a first effective ingredient, a second effective ingredient and a third effective ingredient, the first effective ingredient is a composition of pendimethalin, sulfentrazone and bentazone, the second effective ingredient is a composition of clethodim and halosulfuron-methyl, the third effective ingredient is a composition of a polar organic solvent, a defoaming agent, an anticorrosive agent, kaolin and deionized water, the weight ratio of the first effective ingredient to the second effective ingredient is 1:1-60:1, and the weight percentage of the sum of the first effective ingredient and the second effective ingredient in the composition is 15%-75%. The novel weeding composition is good in preventing and treating effect and weeding effect, free of pollution to the environment, capable of delaying the weed resistance, long in lasting period, capable of not harming crops and good in safe effect.

The invention discloses a soybean field weeding composition, which comprises pyroxasulfone, sulfentrazone and a pesticide auxiliary agent. The total mass ratio of pyroxasulfone to sulfentrazone in thecomposition is 25-75%, and the mass ratio of pyroxasulfone to sulfentrazone is 1: 0.2-30; preferably, the mass ratio of the pyroxasulfone to the sulfentrazone is 1: 1.5-2.75. According to the soybeanfield weeding composition, the effective components pyroxasulfone and sulfentrazone are mixed according to different proportions to prepare the water dispersible granules, the weeding composition ishigh in prevention effect, low in toxicity and small in environmental influence, the weeding spectrum is expanded, the purposes of one-time pesticide application and removal of various weeds are achieved, farmers can use the weeding composition conveniently, the pesticide application frequency is reduced, and the weeding effect is good. Labor intensity of farmer weeding is reduced.

The invention provides a weeding combination containing ametryn and sulfentrazone and applications of the weeding combination. The weeding combination comprises the ametryn and sulfentrazone which are taken as active substances. The invention also relates to a method for processing unexpected vegetations by using the weeding combination. The weeding combination containing the ametryn and the sulfentrazone is characterized by comprising the active components, namely the ametryn and the sulfentrazone, wherein the weight ratio of the ametryn to the sulfentrazone is 50: 1 to 1: 50. The ametryn and the sulfentrazone are 5 to 90% of the wedding combination by weight percent. The weeding combination is applied to places with vegetation or places expected to be free from vegetation. The weeding combination is mainly used for removing weeds in a sugarcane field, a corn field citrus orchard and the like, and particularly removing cyperus rotundus weeds.

The invention discloses a weeding composition containing sulfentrazone and metribuzin and application thereof. The composition takes sulfentrazone and metribuzin as active ingredients, comprises auxiliary materials and can be prepared into water dispersible granules, a suspending agent or wettable powder. The weeding composition disclosed by the invention can be used for effectively controlling annual broad leaf weeds including amaranth, xanthium sibiricum, chenopodium album, setaria viridis, digitaria sanguinalis and the like and parts of grassy weeds in soybean fields and corn fields, and the control effect of the weeding composition is obviously higher than that of single sulfentrazone or single metribuzin. Otherwise, according to the composition, the pesticide effect is improved, the dosage is reduced, the economic cost is saved, the application dosage of each active substance is greatly reduced, residues of chemicals in the environment are reduced, the drug resistance of weeds can be postponed and the service life of the chemicals is prolonged; therefore, the weeding composition has important ecological significances and environmental protection significances.

The invention provides a weeding composition and application thereof and relates to an oil suspending agent containing glufosinate, sulfentrazone and halosulfuron-methyl. The weeding composition is characterized by being composed of the following components: 1-20% of glufosinate, 5-10% of sulfentrazone, 0.1-5% of halosulfuron-methyl, 3-20% of an emulsifying agent, 1-5% of a dispersing agent, 1-5% of a structure modifier, 1-5% of an antifreezing agent and the balance of carrier oil. The oil suspending agent provided by the invention is reasonable in components, good in wettability and rain wash resistance, pollution-free to the environment, safe to people and animals, obvious in synergistic effect and especially applicable to prevention or killing off of weeds difficult to control such as cyperus rotundus and difformed galingale herbs, so that the oil suspending agent provided by the invention is suitable for popularization.