23results about How to "Improve herbicidal activity" patented technology

The invention discloses clethodim amine salt as well as a preparation method and application thereof, the clethodim amine salt is clethodim tert-butylamine salt, and the chemical structural formula of the clethodim amine salt is as follows: # imgabs0. The invention discloses the clethodim tert-butylamine salt, and the clethodim tert-butylamine salt is characterized by various means. The prepared clethodim tert-butylamine salt is good in stability, meanwhile, the herbicidal activity of the prepared clethodim tert-butylamine salt is not weaker than that of clethodim, and the stability and the herbicidal activity of the prepared clethodim tert-butylamine salt are both superior to those of other clethodim amine salts reported in documents. The prepared clethodim tert-butylamine salt is low in degradation rate in the high-temperature heat storage process and can be stored for a long time more easily compared with clethodim, and commercial products of the clethodim tert-butylamine salt can be kept more stable in the shelf life. The clethodim tert-butylamine salt prepared by the invention is high in melting point, is solid at normal temperature, can be processed into richer dosage forms as a herbicide, can be expanded to water dispersible granules (WG), wettable powder (WP) and other new dosage forms from the current dosage forms mainly comprising clethodim emulsifiable concentrate (EC), and is good in commercial prospect.

The invention discloses a mixed herbicide containing pyroxasulfone and diflufenican, and relates to the technical field of pesticides, the herbicide takes pyroxasulfone and diflufenican as main effective components, and the mass ratio of pyroxasulfone to diflufenican is (0.1-80): (0.1-80). The mixed herbicide disclosed by the invention has the advantages of broad spectrum, quick effect, high efficiency, low toxicity, safety, environmental protection and the like when being applied to post-emergence weeding in wheat fields.

The present invention relates to a 4-methylsulfonylbenzamide compound having a sulfur-containing substituent at the 3-position of a general formula (I), a stereoisomer thereof, an agriculturally acceptable salt thereof, a preparation method thereof, a herbicidal composition and use thereof in the field of plant protection, wherein R1, R2, X, Q and n are as defined herein.

This invention discloses a herbicidal composition and its application. The composition comprises active ingredient A and active ingredient B, wherein active ingredient A is a compound of formula (I), and active ingredient B is selected from either flufenoxuron or pyrimethanil. The mass ratio of active ingredient A to active ingredient B in the composition is 1:20-10:1. This invention also relates to the use of the herbicidal composition in controlling the germination or growth of weeds in useful plants, particularly suitable for controlling the germination or growth of weeds in peanut fields.

The present application relates to a kind of β-cyclodextrin-linalool nanoparticles, preparation method and its application, the specific preparation method includes mixing reaction, ultrasonic, centrifugal, drying and the like steps, aims at obtaining the particle size suitable, embedding rate high, the β-cyclodextrin-linalool nanoparticles of good stability, and the application of the nanoparticle in the research of plant physiological and biochemical indexes etc., provide new way and method for the application of linalool.

This invention relates to the fields of compound synthesis technology and pesticide technology, specifically to natural naphthoquinone derivatives and their preparation methods and applications. The natural naphthoquinone derivatives are either natural naphthoquinone derivatives containing aryl carboxylic acids or natural naphthoquinone derivatives containing diphenyl ether units. Some of the natural naphthoquinone aryl carboxylic acid derivatives and natural naphthoquinone diphenyl ether derivatives of this invention exhibit 100% control efficacy against six weeds (barnyard grass, crabgrass, foxtail grass, velvetleaf, amaranth, purslane, etc.) at a dosage of 300 a.g. / ha. These compounds achieve good weed control effects at low dosages and have relatively good safety for crops such as corn, wheat, peanuts, soybeans, and cotton. They can be used as selective herbicides in agriculture. The compounds of this invention can be developed and used as potential PSII inhibitors and post-emergence herbicides for broadleaf weeds. The derivatives have simple structures and preparation processes, low production costs, and broad application prospects.

The invention discloses an oxazole ring-containing tetrahydropyridinopyrazole derivative, a preparation method thereof and application of the oxazole ring-containing tetrahydropyridinopyrazole derivative as a herbicide. The oxazole ring-containing tetrahydropyridinopyrazole derivative has the following molecular structure expression and can be prepared by mixing pyraclonil and ethanolamine hydrochloride in a solvent and then adding a catalyst and an acid-binding agent for reaction; the oxazole ring-containing tetrahydropyridinopyrazole derivative has typical application as a paddy field herbicide. And # imgabs0 #.

The present application relates to the field of compound synthesis technology and pesticides, and in particular to a pyridazine derivative, a preparation method and application thereof, the pyridazine derivative is an aromatic ether and an N-substituted phenylcarboxamide group; the aromatic ether is a substituted pyridazine group substituted phenyl ether; the substituted phenyl group is trifluoromethyl or halogen substitution, and the phenyl group containing the N-substituted phenylcarboxamide group is substituted by different halogen groups; the derivative has effective pre-emergence and post-emergence herbicidal activity, and can be applied as a herbicide; the structure of the derivative is simple, the production cost is low, and the application prospect is wide.

The invention relates to the technical field of compound synthesis and pesticides, in particular to an N-phenyl triazinone derivative and a preparation method and application thereof.The N-phenyl triazinone derivative has the 100% control effect on broadleaf weeds under the dosage of 37.5 a.i g / ha-150 a.i g / ha, and part of compounds have the good control effect on grassy weeds; the compound can obtain a better weeding effect at a low dosage, can be used as a potential PPO inhibitor and broadleaf weed post-emergence herbicide for development and use, and has the advantages of novel structure, simple preparation process, low production cost and wide application prospect.

The present application relates to the technical field of compound synthesis and pesticides, and particularly relates to a kind of N Phenylpyrimidine diketone derivatives, preparation method and application thereof N The phenylpyrimidine diketone derivatives have 100% prevention and removal effect on gramineous weeds and broadleaf weeds at a dose of 9.375-150 a.i.g / ha; the compounds can obtain good herbicidal effect at a low dose, and can be used as potential PPO inhibitors and post-emergence herbicides, the derivative has novel structure, simple preparation process, low production cost and wide application prospect.

The invention relates to a 5-acyl barbituric acid compound containing a pyrimidinedione structure, a preparation method of the 5-acyl barbituric acid compound and application of a herbicide of the 5-acyl barbituric acid compound. The phenoxyalkyl acyl chloride compound containing the pyrimidinedione structure is obtained by taking a nitrophenol compound as a raw material through nucleophilic reaction, hydrogenation reduction reaction, condensation ring closing reaction, hydrolysis reaction and acylating chlorination reaction. The 5-acyl barbituric acid compound containing the pyrimidinedione structure is obtained through an intermolecular condensation reaction with a barbituric acid compound, and a weeding test result shows that the yield of the 5-acyl barbituric acid compound containing the pyrimidinedione structure is increased at the dosage of 150 g / hectare in post-seedling treatment. The compound disclosed by the invention has a good growth inhibition effect on dicotyledonous plants such as rape, piemarker, amaranthus retroflexus and chenopodium album and monocotyledonous plants such as barnyard grass, digitaria sanguinalis, eleusine indica and green bristlegrass, and is a broad-spectrum herbicide with a novel structure and a wide application prospect.

The application discloses enoxamacetone diamine salts, a preparation method and application thereof. The stability of enoxamacetone diamine salts (enoxamacetone 1,4-butane diamine salt, enoxamacetone 1,5-pentane diamine salt and enoxamacetone 1,6-hexane diamine salt) is better than that of enoxamacetone and enoxamacetone monoamine salt (for example, enoxamacetone tert-butylamine salt); meanwhile, the weeding activity of the enoxamacetone diamine salt (enoxamacetone ethylenediamine salt, enoxamacetone 1,4-butane diamine salt and enoxamacetone 1,5-pentane diamine salt) is better than that of enoxamacetone tert-butylamine salt, wherein the weeding activity of enoxamacetone 1,5-pentane diamine salt is better than that of enoxamacetone. Most of the enoxamacetone diamine salts have low degradation rate during high-temperature heat storage, are easier to be stored for a long time, have higher melting point than enoxamacetone monoamine salt (for example, enoxamacetone tert-butylamine salt), are more convenient for granulation and crushing, are more convenient for being processed into solid dosage forms such as water dispersible granules as weeding agents, have better physical properties of preparations, and have good commercialization prospect.

The present application relates to a kind of arylamino-containing xanthine derivatives and its preparation method and application.On the basis of 1,3-disubstituted xanthine raw material, arylamino-containing xanthine derivatives obtained by series of reactions are shown as general formula I.Compounds of general formula I have higher herbicidal activity, and have obvious activity on rape, amaranthus retroflexus, barnyard grass, crabgrass, have good insecticidal activity, especially on the effect of diamondback moth is remarkable, have good fungicidal activity, and have obvious in vitro inhibitory activity on wheat scab fungus, pepper phytophthora blight fungus, sclerotinia sclerotiorum, cucumber fusarium wilt fungus, apple phialophora quercina, wheat sharp eyespot fungus, etc.Compounds of general formula I can be used as active components of herbicidal or insecticidal or fungicidal composition, for preparing agricultural herbicide or insecticide or fungicide, and can be used for the prevention and treatment of grass damage or insect damage or pathogenic damage on various crops.Also have good inhibitory effect on the activity of KARI, and can be used for KARI inhibitor.

The invention relates to a crystal form of a compound, in particular to a polymorphic substance of pyrazol-quinclorac-ethyl as well as a preparation method and application of the polymorphic substance of pyrazol-quinclorac-ethyl. The polymorphic substances of the pyrazol-quinclorac ester are white powder, have different molecular accumulation modes microcosmically, and can be divided into multiple crystal forms, and the X-ray powder diffraction pattern of each crystal form is shown in the specification. The invention discloses that each crystal form of pyrazol-quinclorac ester has excellent biological activity and dissolving property.

The invention discloses 6-nitrogeno-cyclopicolinic acid and a part of formate compounds thereof as well as a preparation method and application of the 6-nitrogeno-cyclopicolinic acid and the part of formate compounds thereof. The structural formulas of the compounds are shown as formulas I-V. The compound prepared by the invention has a novel structure and remarkable herbicidal activity; the weeding composition not only has activity on dicotyledonous weeds, but also has obvious inhibitory activity on the growth of monocotyledonous weeds; the method is short in process route, mild in reaction condition, low in equipment requirement, convenient in post-treatment and simple to operate.

The present application relates to an inhibitor compound, and aims to provide an acetohydroxy acid synthase inhibitor and a preparation method and application as a herbicide thereof. The structural formula of the compound is shown as formula (I), and the compound specifically inhibits the activity of acetohydroxy acid synthase or its mutant W574L in plants. The present application further provides a method for applying the compound as an agricultural chemical herbicide. The compound has good enzyme inhibition activity on wild-type acetohydroxy acid synthase and / or its mutant W574L, and thus can be used as an agricultural chemical herbicide for the prevention and treatment of various weeds in the agricultural field; can be used as a pre-emergence and post-emergence herbicide, and the prevention and treatment objects include various field weeds, and has a special effect on the prevention and treatment of the malignant weed Euphorbia lathyris L.; has the characteristics of low dosage, excellent herbicidal activity, wide weed spectrum, good transmission, wide application window period, safety to rice and the like.

The invention belongs to the field of pesticides, and particularly relates to a herbicide composition containing pendimethalin and pyroxasulfone, the weight ratio of pendimethalin to pyroxasulfone is (1: 15)-(15: 1), the two active ingredients have a remarkable synergistic effect on various weeds, the two active ingredients are compounded to form a suspoemulsion composition, the stability is good, and the herbicide composition is suitable for industrial production.

The application belongs to the field of pesticides, and particularly relates to a composition containing R-type pyridine oxycarboxylic acid compound and a safener and application thereof. The active ingredient R-type pyridine oxycarboxylic acid compound in the herbicidal composition is at least one selected from the following compounds: a) dichlorophenyl pyrazoline-3-carboxylic acid compound; b) 5-benzyl- or 5-phenyl-2-isoxazoline-3-carboxylic acid or 5,5-diphenyl-2-isoxazoline-3-carboxylic acid compound; c) 8-quinolinyloxy acetic acid compound; d) pyrimidine compound; e) acyl sulfonamide compound; f) metcamifen and the like. The composition has obviously improved compatibility with important crops while maintaining high herbicidal activity, has excellent selectivity, and has great economic and social benefits in popularization and application.

The invention relates to a 5-acyl barbituric acid compound containing a pyrrole-2, 5-diketone structure, which is characterized in that a nitrophenol compound is used as a raw material, and the nitrophenol compound is subjected to nucleophilic reaction, hydrolysis reaction, hydrogenation reduction reaction, condensation reaction and acylating chlorination reaction to obtain a phenoxyalkanoyl chloride compound containing the pyrrole-2, 5-diketone structure. The 5-acyl barbituric acid compound containing the pyrrole-2, 5-diketone structure is obtained through a condensation reaction between the pyrrole-2, 5-diketone structure and a barbituric acid compound, and the compound has an excellent growth inhibition rate on plants such as oilseed rape, piemarker, amaranthus retroflexus, Chinese velvet, barnyard grass, digitaria sanguinalis, eleusine indica and green bristlegrass and can be used as a candidate variety of efficient herbicides.

The invention relates to an arylamino-containing xanthine derivative as well as a preparation method and application thereof. On the basis of a 1, 3-disubstituted xanthine raw material, the xanthine derivative containing the arylamino group, which is obtained through a series of reactions, is shown as a general formula I in the specification. The compound of the general formula I has high herbicidal activity, and has obvious activity on rape, amaranthus retroflexus, barnyard grass and digitaria sanguinalis. The compound has good insecticidal activity, and especially has a remarkable effect on plutella xylostella. The compound has good bactericidal activity, and has obvious in-vitro inhibitory activity on fusarium graminearum, phytophthora capsici, sclerotinia sclerotiorum, fusarium wilt of cucumber, physalospora piricola, rhizoctonia cerealis and the like. The compound as shown in the general formula I can be used as an active component of a weeding or insecticidal or bactericidal composition, is used for preparing an agricultural herbicide or insecticide or bactericide, and can be used for preventing and treating weeds, pests or germs on various crops. The compound also has a good inhibition effect on the activity of KARI, and can be used as a KARI inhibitor. # imgabs0 #

The invention discloses a pyridine oxazole sulfosulfone compound as well as a preparation method and application thereof. The structural general formula of the compound is # imgabs0 #, wherein RX is any one or more of-H,-CH3,-OCH3,-NO2,-Br,-Cl,-F,-CN and the like. The pyridinoxazole sulfosulfone compound provided by the invention has excellent herbicidal activity, especially has a remarkable effect on preventing and treating annual and perennial weeds of gramineae, the plant control effect on total grass at least reaches 98.4% and the fresh weight control effect at least reaches 94.1% after the pyridinoxazole sulfosulfone compound is applied for 7 days, and meanwhile, the pyridinoxazole sulfosulfone compound has a good effect on preventing and removing barnyard grass of cyhalofop-butyl and quinclorac, and has a good application prospect. And the composition has little residue to later crops and is also safe to non-target bees. The compound is small in dosage, low in cost and short in residual period, the potential threat of pesticides to the environment is relieved, the synthesis method is simple and economical, the compound can serve as a lead compound, and a new reference is provided for developing novel efficient and low-toxicity herbicides.

This invention discloses a substituted quinazolinone-isoxazoline compound, its preparation method, and its application. Using toluene as a solvent, sodium trifluoromethyl sulfinate is reacted with compound (I) to generate compound (II). Compound (II) reacts with compound (III) to generate compound (IV). Compound (IV) reacts with R1I to generate compound (V). Compound (V) is heated under reflux using a prepared sulfuric acid / acetic acid / aqueous solution as a solvent to generate an acidic hydrolysis product. Using DCM as a solvent and EDCl and DMAP as condensing agents, the acidic hydrolysis product is condensed to obtain the target product, a substituted quinazolinone-isoxazoline compound. Herbicidal activity tests show that at a concentration of 10 ppm, it exhibits excellent herbicidal activity in dicotyledonous rapeseed and monocotyledonous wheat VI13 and VI15.