53results about How to "Has herbicidal activity" patented technology

The invention discloses a dispersible oil suspending agent containing florasulam and MCPA-isooctyl. The dispersible oil suspending agent comprises effective active ingredients, namely florasulam and MCPA-isooctyl, a dispersing agent, an emulsifier, a wetting agent, a thickening agent, a stabilizing agent, a defoaming agent, a synergistic agent and plant oil. According to the dispersible oil suspending agent, a scheme of blending two effective active ingredients is adopted, control effect of mixing two effective active ingredients is better than that of a single effective active ingredient, and the dispersible oil suspending agent has a synergistic effect. The prepared dispersible oil suspending agent has the weeding effect obviously better than that of other dosage forms and also has good control effect to various broad leaf weeds in a wheat field, control cost can be reduced, safety to crop is good, and safety requirements to pesticide preparation are met.

The invention discloses preparation and application of 4-chlorine-3-ethyl-1-methyl-N'-(2-substituted phenoxy acetyl)-1H-pyrazol-5-carbohydrazide compounds. The preparation comprises the following steps: carrying out backflow reaction on thionyl chloride and N-methyl-3-ethyl-4-chloride pyrazole carboxylic acid for 1h to obtain a compound (II), putting the mixed liquor of a compound (III), an organic solvent and an acid-binding agent in a round-bottom flask, dropwise adding the compound (II) at 20-30 DEG C while stirring, then heating up to backflow reaction, carrying out TLC tracing until the raw materials are completely reacted, stopping the reaction, respectively extracting by using 50ml of water twice, drying the organic layer by anhydrous NaSO4, evaporating out the solvent under reduced pressure, and carrying out recrystallization to obtain the target compound shown in the formula (I). According to the preparation and the application, the reaction conditions are mild, the postprocessing is convenient and the total yield of the reaction is as high as 81%; and the compound has a herbicidal activity, thus laying a foundation for the research and development of new pesticides.

The invention discloses a clean manufacturing method of 4, 6-disubstituted-amino-1, 3, 5-triazine derivant, which comprises the following steps: adopting cyanuric acid and substituted amine as raw material; adopting imidazole salt, pyridine salt or quaternaries as ionic solution; simplifying the operation; reducing environmental pollution; improving receiving rate; fitting for large scale of industrial manufacturing.

An unsaturated alpha, beta-and beta, gamma-carboxylate with high herbiciding activity is disclosed.

The present invention belongs to the field of herbicide technology, and is especially 1, 2-disubstituted allyl aryloxy phthalate compounds and their application. The general expression of the compounds is shown. The compounds have herbicidal activity, especially on gramineous and broad-leaved weed, and may be used to control monocotylous weed effectively when it is applied before or after seeding emergence.

The invention discloses a piperonyl-containing aryloxyphenoxies propionate compound, which has the following structure: the formula is shown in the specification. The specific preparation method includes steps of taking catechol as raw material, and compounding heliotropin through two-step reaction; performing reduction reaction with NaBH4 to prepare 3, 4- methylenedioxy phemethylol; reacting 2-(4-aryloxyphenoxies) propionyl chloride with prepare 3, 4- methylenedioxy phemethylol to prepare two piperonyl-containing aryloxyphenoxies propionate compounds. The compound has good weeding activity; especially, the weeding activity of monocotyledon weed is better than that of dicotyledonous weed; the preparation method is simple to operate, and the yield is high.

The invention discloses N-[( dihydrobenzofuran-7-yloxyl)alkyl]-2-aryloxy amide derivatives which are represented as a structural formula I and a structural formula II, and in the structural formula I or II, R is selected from a group consisting of H, C1-C2 alkyl, C3-C4 linear alkyl and C3-C4 branched alkyl; n is selected from a group consisting of 1,2,3,4,5 and 6; Y<1> is selected from a group consisting of H, C1-C2 alkyl, F, Cl, Br and I; Y<2> is selected from a group consisting of H, C1-C2 alkyl, F, Cl, Br, I, trifluoromethyl and trifluoroethyl; and Y<3> is selected from a group consisting of H, C1-C2 alkyl, F, Cl, Br and I. The invention also provides an application of the N-[(dihydrobenzofuran-7-yloxyl)alkyl]-2-aryloxy amide derivatives to preparing herbicides.

The invention relates to an asymmetric heterocyclic ring substituent urea compound and a preparation method and application thereof. The compound is a compound or a non-toxic salt thereof with a structure shown in the formula I, wherein R1 is selected from halogen, nitryl, cyan, hydroxyl, ester group, carboxyl, trifluoromethyl, alkyl, alkoxyl, aryl, heteroaryl, aryloxy, acyl, acyloxy or heterocyclic radical; and R2 is selected from alkyl, aryl, heteroaryl or cluste aryl. The asymmetric heterocyclic ring substituent urea compound has the characteristics of weeding activity, sterilizing activity and plant growth adjusting activity; and the preparation method is safe and non-toxic.

The invention discloses an aryloxyphenoxypropionamide compound and a preparation method and application thereof. The compound is (R)-2-N-(2-phenoxyethyl)-2-[4-(3-cholo-5-trifluoromethylpyridine-2-oxyphenoxy]propanamide or (R)-2-N-(2-phenoxyethyl)-2-[4-(6-chloroquinoxaline-2-yl-oxo)phenoxy]propanamide. The compound has herbicidal activity and can be used as an active ingredient of herbicide to develop a new herbicide product. Compared with the existing herbicide, the aryloxyphenoxypropionamide compound has strong removal effects on monocotyledonous weeds and can remove weeds around dicotyledonous crops without damaging the dicotyledonous crops.

The invention discloses a water soluble fertilizer with herbicidal activity. The water soluble fertilizer with the herbicidal activity comprises the following components in parts by weight: 100-150 parts of nitrogen-potassium fertilizer, 30-50 parts of biostimulant, 8-12 parts of a surfactant and 3-5 parts of an anti-blocking agent in parts by weight, wherein the biostimulant comprises bacillus subtilis (Bacillus Subtilis) LTBS01 and has been preserved in China Center for Type Culture Collection; and the preservation number is CCTCCNO: M2018246. The water soluble fertilizer with the herbicidalactivity, disclosed by the invention, is a functional water soluble fertilizer, can be used as a pure nutritional type water soluble fertilizer to provide nutrition for fruit trees, can also be usedas a herbicide to prevent and treat orchard weeds, does not contain any the herbicide and pesticide ingredients, has the characteristics of pesticide and fertilizer combination, high fertilizer efficiency, stable pesticide effect, safety and no chemical injury and is an efficient, pollution-free, green and environmentally friendly novel functional fertilizer. The invention discloses a method for preparing the water soluble fertilizer with the herbicidal activity into a solid powder preparation. The method for preparing the water soluble fertilizer with the herbicidal activity into the solid powder preparation, disclosed by the invention, has the advantages that the method is simple, industrial production is easy to realize, and the product quality is stable.

The invention discloses aryloxy-phenoxy propionate compounds containing piperonyl. The compounds have a following structure. The preparation method specifically includes following preparation steps: using catechol as a raw material; synthesizing heliotropin through two-step reaction; enabling heliotropin to be in reductive reaction with NaBH4 to prepare 3, 4-methylene dioxybenzyl alcohol; enabling 2-(4-aromatic oxygen phenyl) propionyl chloride to react with 3, 4-methylene dioxybenzyl alcohol to prepare two aryloxy-phenoxy propionate compounds containing piperonyl. The compounds have higher weeding activity, especially for monocotyledon weed than dicotyledon weed. The preparation method is simple to operate and high in yield.

The invention relates to delta-aminoalkylbenzofuranol ethers represented by chemical structural formula I shown in the description, and an application thereof in the preparation of herbicides. In thechemical structural formula I, R is selected from C1-C2 alkyl groups, and n is selected from 2, 3 and 4.

The invention discloses preparation and application research of oil-soluble and water-soluble aryloxy phenoxy carboxylic acids and carboxylate compounds. As shown in general formulae (I, II), n is equal to 0, 1, 2, 3, 4, 5, or the like, or (CH2)n and represents a branched alkyl; Y represents Cl-, Br-, F-, I-, AcO-, acetyl salicylate radical, a citrate radical, salicylate radical, p-toluenesulfonate radical, hydrogen sulfate radical, or other negative ions; R1 represents alkyl with 1-6 carbon atoms, alkoxy with 1-6 carbon atoms, alkenyl with 1-6 carbon atoms, or aryl; R2 represent alkyl with 1-6 carbon atoms, alkoxy with 1-6 carbon atoms, alkenyl with 1-6 carbon atoms, or aryl; or R1 and R2 adopt the following structure; and Ar is one of the following groups.

The invention discloses a 2, 3, 4, 7-tetrahydro-1H-nitrogen azepine compound represented by formula (III) and a preparation method and application thereof. The preparation method comprises the following step: the 2, 3, 4, 7-tetrahydro-1H-nitrogen azepine compound is prepared by cycloaddition reaction of a compound represented by formula (I) and a compound represented by formula (II) in the presence of a phosphine catalyst. The application of the 2, 3, 4, 7-tetrahydro-1H-nitrogen azepine compound represented by the formula (III) is further provided in the preparation process of herbicide whichcan prevent and remove crabgrass and rape. The method adopts a cycloaddition mode to perform the reaction which belongs to atom economical reaction. Organic phosphine is adopted to serve as the catalyst and a transition metal catalyst is not used so that no heavy metal residual pollutant exists. The prepared 2, 3, 4, 7-tetrahydro-1H-nitrogen azepine compound is a novel compound and has a certain herbicidal activity.

The present invention relates to a class of (R)-N-(thiazol-2-yl)-2-[4-(pyridin-2-oxy)phenoxy]amide derivatives having a chemical structure formula represented by a formula (I) and salts thereof, wherein R is selected from C1-C2 alkyl, C3-C4 linear chain alkyl, or C3-C4 branched chain alkyl, R1 is selected from hydrogen, trifluoromethyl, C1-C2 alkyl, C3-C4 linear chain alkyl or C3-C4 branched chain alkyl, R2 is selected from hydrogen, C1-C2 alkyl, C3-C4 linear chain alkyl or C3-C4 branched chain alkyl, nitro, carboxy, methoxycarbonyl, ethoxycarbonyl, n-propoxycarbonyl, isopropoxycarbonyl, n-butoxycarbonyl, isobutoxycarbonyl and tert-butoxycarbonyl, Y1 is selected from hydrogen, C1-C2 alkyl, fluorine, chlorine, bromine or iodine, and Y2 is selected from hydrogen, trifluoromethyl, C1-C2 alkyl, fluorine, chlorine, bromine or iodine. According to the present invention, the (R)-N-(thiazol-2-yl)-2-[4-(pyridin-2-oxy)phenoxy]amide derivatives and the salts thereof can be used for preparing weeding agents.

The present invention relates to a 1-pyrimidone group-4-chlo-5-benzoate compound and its preparation method. Said invention also provides the general formula of said compound. Said compound can be used as weedicide, and has high herbicidal activity.

The invention relates to the technical field of organic chemical synthesis and specifically discloses a trifluoromethylpicolinamide-containing compound and a preparation method and application thereof. The preparation method comprises that 2-trifluoromethylpyridine-3-carboxylic acid and aminoacetonitrile hydrochloride undergo a condensation acylation reaction in the presence of an organic solvent,a base and a condensing agent to produce the trifluoromethylpicolinamide-containing compound. The trifluoromethyl and amide bond at the ortho position and meta position of a pyridine ring have two structures shown in the formulas I and II and the two structures have low toxicity to the beneficial organism, can be easily degraded, have good environmental compatibility and herbicidal activity and can produce good effects of preventing dicotyledon weeds.

The invention discloses a N-(oxo-ethyl)-2-[4-(pyridine-2-yl-oxy)phenoxy]amide derivative of a chemical structure formula I as shown in the specification, in the formula, R and R2 are selected from hydrogen, C1-C2 alkyl, C3-C4 linear alkyl or C3-C4 branched alkyl; R1 and R3 are selected from C1-C2 alkyl, C3-C4linear alkyl or C3-C4 branched alkyl; R1 and R3 are selected from C1-C2 alkyl, C3-C4 linear alkyl or C3-C4 branched alkyl; X1, X2, X4 and X6 are selected from hydrogen and C1-C2 alkyl; X3 is selected from hydrogen, C1-C2 alkyl, fluorine, chlorine, bromine or iodine; X5 is selected from hydrogen, C1-C2 alkyl, trifluoromethyl, fluorine, chlorine, bromine or iodine. The N-(oxo-ethyl)-2-[4-(pyridine-2-yl-oxy)phenoxy]amide derivative can be used for preparing herbicides.

The invention provides a 7-aryloxyacetyl coumarin compound and application thereof in pesticides. The preparation method comprises the following steps: 1, adding resorcinol containing different substituent groups into a reaction bottle filled with concentrated sulfuric acid, stirring and dissolving, slowly dripping an acetylacetate compound under ice-water bath cooling, and reacting under the ice-water bath cooling for an hour after dripping is completed; reacting at room temperature for 24 hours; pouring into an ice-water mixture while agitating intensely, producing a yellow precipitate, performing suction filtration, and recrystallizing the filter cake by using absolute ethyl alcohol so as to obtain a 7-hydroxycoumarin compound; dissolving 2,2,4-dichlorphenoxyacetic acid and oxalyl chloride in a CH2Cl2 solvent, dripping N,N-dimethylformamide, reacting at room temperature for 2 hours so as to obtain acyl chloride; and 3, adding a catalyst into an organic solvent containing the 7-hydroxycoumarin compound and acyl chloride at a certain temperature, and recrystallizing after reacting for a period of time, thereby obtaining the 7-aryloxyacetyl coumarin compound. The compound disclosed by the invention has extremely high herbicidal activity.

The invention relates to 2-[4-(pyridyl-2-yl oxyl)phenoxyl]amide derivatives having a chemical structural formula I shown in the description, wherein R and R<1> are selected from C1-C2 alkyl groups, C3-C4 straight chain alkyl groups or C3-C4 branched chain alkyl groups; R<2> is selected from H, C1-C2 alkyl groups, C3-C4 straight chain alkyl groups or C3-C4 branched chain alkyl groups; X<1>, X<2>, X<4>, and X<6> are selected from H and C1-C2 alkyl groups; X<3> is selected from H, C1-C2 alkyl groups, fluorine, chlorine, bromine or iodine; X<5> is selected from H, C1-C2 alkyl groups, trifluoromethyl, fluorine, chlorine, bromine or iodine; n is selected from 0, 1 or 2; and m is selected from 0 or 1. The invention also relates to application of the 2-[4-(pyridyl-2-yl oxyl)phenoxyl]amide derivatives in preparation of herbicides.

The invention discloses 6-chloropyrazine-2-amide compounds containing diphenyl ether groups, and the compounds have the following general formulas. The preparation method comprises the following specific steps: taking 2-phenoxyaniline and 4-phenoxylaniline as raw materials, and respectively carrying out one-step reactions with 6-chloropyrazine-2-carboxylic acid under a condition of an alkali, a condensing agent and an organic solvent to synthesize a target compound (I) and a target compound (II). The compounds disclosed by the invention have relatively good herbicidal activity, particularly have certain prevention effects on dicotyledonous weeds under a usage amount of 2000 g / hm<2>, and can be used for preparing herbicides.

The invention discloses a N-(oxo-ethyl)-2-[4-(pyridine-2-yl-oxy)phenoxy]amide derivative of a chemical structure formula I as shown in the specification, in the formula, R and R2 are selected from hydrogen, C1-C2 alkyl, C3-C4 linear alkyl or C3-C4 branched alkyl; R1 and R3 are selected from C1-C2 alkyl, C3-C4linear alkyl or C3-C4 branched alkyl; R1 and R3 are selected from C1-C2 alkyl, C3-C4 linear alkyl or C3-C4 branched alkyl; X1, X2, X4 and X6 are selected from hydrogen and C1-C2 alkyl; X3 is selected from hydrogen, C1-C2 alkyl, fluorine, chlorine, bromine or iodine; X5 is selected from hydrogen, C1-C2 alkyl, trifluoromethyl, fluorine, chlorine, bromine or iodine. The N-(oxo-ethyl)-2-[4-(pyridine-2-yl-oxy)phenoxy]amide derivative can be used for preparing herbicides.

The invention provides a cyclohexadiene oxime ether compound which has a structural formula shown in the specification, in which a group R1 and a group R3 are respectively selected from H, an aliphatic substituent group containing 1-6 carbon atoms, a halogenated aliphatic substituent group, a cyano-substituted aliphatic substituent group, an amino group or amide, a phenyl group, a halogenated aromatic substituent group or a cyano-substituted aromatic substituent group; the group R1 is selected from H, aliphatic substituent containing 1-6 carbon atoms, halogenated aliphatic substituent, cyano-substituted aliphatic substituent, amido or amide, phenyl, halogenated aromatic substituent, cyano-substituted aromatic substituent or heterocyclic aromatic substituent, the heterocyclic aromatic substituent is selected from H, halogen,-CN,-NO2,-CF3 and-C (CF3) 3, and n is the number of substituents and is selected from 1, 2 and 3. The invention also provides an application of the cyclohexadiene oxime ether compound in preparation of herbicides.

The invention discloses application of a Penicillium Polish extract in preparation of herbicides. Penicillium Polish is a bacterial strain preserved in the China Agricultural Microbiological Culture Collection Center, and the preservation number is ACCC 31573. The extract is identified to contain compounds shown as a formula I, a formula II and a formula III, the formula II has good herbicidal activity and can be used for weeds of dicotyledonous plants and monocotyledonous plants, the research further finds that the compound component containing the formula II has higher herbicidal efficiency, the problem of weed resistance in the prior art can be solved, and the compound component has broad application prospects. Therefore, the herbicide has wide application value.

The invention discloses 2-aryloxy carboxylic acid(dihydrobenzofuran-7-phenoxyl)alkyl ester shown as the chemical structural formula I and the chemical structural formula II (please see the formula I and the formula II in the specification). R is selected from hydrogen, C1-C2 alkyl, C3-C4 linear chain alkyl and C3-C4 branch alkyl, n is selected from 1, 2, 3, 4, 5 and 6, and Z is selected from CH and N; Y<1> is selected from hydrogen, C1-C2 alkyl, fluorine, chlorine, bromine and iodine; Y<2> is selected from hydrogen, C1-C2 alkyl, fluorine, chlorine, bromine, iodine, trifluoromethyl, trifluoro ethyl and cyano; Y<3> is selected from hydrogen, C1-C2 alkyl, fluorine, chlorine, bromine and iodine. 2-aryloxy carboxylic acid(dihydrobenzofuran-7-phenoxyl)alkyl ester aims at being applied to preparing a herbicide.