CN111362913B - Amorphous-state bicyclopyrone triethanolamine salt and preparation method and application thereof - Google Patents

Amorphous-state bicyclopyrone triethanolamine salt and preparation method and application thereof Download PDF

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CN111362913B
CN111362913B CN201811593418.2A CN201811593418A CN111362913B CN 111362913 B CN111362913 B CN 111362913B CN 201811593418 A CN201811593418 A CN 201811593418A CN 111362913 B CN111362913 B CN 111362913B
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methyl
amorphous
salt
chloro
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CN111362913A (en
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连磊
赵德
彭学岗
金涛
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Qingdao Kingagroot Chemical Compound Co Ltd
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Qingdao Kingagroot Chemical Compound Co Ltd
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Abstract

The invention belongs to the technical field of herbicide crystallization processes, and particularly relates to amorphous cyflufenac triethanolamine salt and a preparation method and application thereof. The amorphous cyflufenac triethanolamine salt exists in an amorphous form through X-ray powder diffraction detection, and an X-ray powder diffraction pattern of the amorphous cyflufenac triethanolamine salt has no sharp diffraction peak and is basically as shown in figure 1. The amorphous-state bicyclopyrone triethanolamine salt has high solubility and high biological activity, and can be used for preventing and removing weeds.

Description

Amorphous-state bicyclopyrone triethanolamine salt and preparation method and application thereof
Technical Field
The invention belongs to the technical field of herbicide crystallization processes, and particularly relates to amorphous cyflufenac triethanolamine salt and a preparation method and application thereof.
Background
Bicyclopyrone (structural formula:
Figure BDA0001920803470000011
) The compound is a newly developed HPPD inhibitor herbicide for treating postemergence stems and leaves of wheat fields, has excellent biological activity, can effectively prevent and kill various malignant gramineous weeds in the wheat fields, and has been granted in compound patents with the grant publication number: CN 105218449B.
Polymorphism refers to the phenomenon of solid states with different physicochemical properties formed by solid substances in two or more different spatial arrangements. Different crystal forms have different colors, melting points, dissolution properties, chemical stability, reactivity, mechanical stability and the like, and the physical and chemical properties or the processability sometimes directly influence the safety and the effective performance of the medicine. Therefore, research and control of crystal forms become important research content in the process of drug development.
Disclosure of Invention
The invention provides a novel herbicide amorphous-state cyflufenac triethanolamine salt and a preparation method and application thereof. The crystal form has high solubility and high biological activity, and can be used for preventing and removing common weeds in crop fields.
The technical scheme adopted by the invention is as follows:
an amorphous form of ciclopirox olamine salt, in amorphous form, as detected by X-ray powder diffraction.
It has an X-ray powder diffraction pattern without sharp diffraction peaks, and preferably, the X-ray powder diffraction pattern is substantially as shown in figure 1.
The preparation method of the amorphous ciclopirox olamine salt comprises the following steps: dissolving the bicyclopyrone triethanolamine salt in dichloromethane, methanol, ethanol, acetone or ethyl acetate by stirring, performing reduced pressure rotary evaporation on the solvent at 40-60 ℃, and then performing mechanical grinding to obtain the amorphous bicyclopyrone triethanolamine salt.
A herbicidal compounded composition comprising (i) the amorphous cyflufenac triethanolamine salt; preferably, also (ii) one or more other active ingredients and/or safeners; more preferably, (iii) an agrochemically acceptable formulation auxiliary.
Preferably, the adjuvant is selected from one or more of solvents, solid diluents, emulsifiers, wetting agents, dispersants, anti-freeze agents, anti-foaming agents and thickeners.
Selected solvents include, but are not limited to, the class of polar solvents: water, N-dimethylamide, dimethyl sulfoxide, N-alkylpyrrolidone, methanol, ethanol, ethylene glycol, isopropanol, ethylene glycol butyl ether, propylene glycol methyl ether, etc.; aromatic solvent oil series: toluene, xylene, 100 # solvent oil, 150# solvent oil, 180 # solvent oil, 200 # solvent oil, and the like; vegetable oils: castor oil, linseed oil, sesame oil, corn oil, peanut oil, cottonseed oil, soybean oil, rapeseed oil, and their corresponding methyl esterified vegetable oils and the like; ketones: cyclopentanone, cyclohexanone, cyclooctanone, 2-heptanone, isophorone, 4-hydroxy-4-methyl-2-pentanone, and the like; acetic acid esters: methyl acetate, ethyl acetate, propyl acetate, sec-butyl acetate, isoamyl acetate, hexyl acetate, heptyl acetate, octyl acetate, and the like; the rest classes are: decanoamide, cyclohexanol, decanol, benzyl alcohol, tetrahydrofurfuryl alcohol, and the like.
The solid diluent selected may be water soluble or water insoluble. Water soluble solid diluents include, but are not limited to: salts such as alkali metal phosphates (sodium dihydrogen phosphate), alkaline earth metal phosphates, sulfates of sodium, potassium, magnesium and zinc, sodium and potassium chloride, sodium acetate, sodium carbonate and sodium benzoate, and sugars and sugar derivatives such as sorbitol, lactose, sucrose and mannitol, corn starch and the like. Examples of water insoluble solid diluents include, but are not limited to: clay, calcium carbonate, diatomite, white carbon black, calcium silicate, bentonite, magnesium aluminum silicate, kaolin and the like.
Wetting agents include, but are not limited to: alkyl sulfosuccinates, laurates, alkyl sulfates, phosphates, ethoxylated fluorinated alcohols, ethoxylated silicones, alkylphenol ethoxylates, benzenesulfonates, alkyl-substituted benzenesulfonates, alkyl alpha-olefin sulfonates, naphthalenesulfonates, alkyl-substituted alkali metal salts of naphthalenesulfonic acids, condensates of alkali metal salts of naphthalenesulfonic acids and of alkyl-substituted naphthalenesulfonic acids with formaldehyde, alcohol ethoxylates.
Dispersants include, but are not limited to: sodium, calcium and ammonium salts of lignosulfonic acid; sodium and ammonium salts of maleic anhydride copolymers; sodium salts of condensed phenolsulfonic acids; naphthalene sulfonate-formaldehyde condensates; phosphate dispersants, polycarboxylate dispersants, and the like.
Thickeners include, but are not limited to: guar gum, pectin, xanthan gum, alginates, methyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, and magnesium aluminum silicate, among others. Synthetic thickeners include derivatives of the foregoing classes, and also include polyvinyl alcohols, polyacrylamides, polyvinyl pyrrolidones, various polyethers and copolymers thereof, and polyacrylic acids and salts thereof.
Other formulation ingredients, such as dyes, defoamers, desiccants, and the like, may be used in the present invention. These ingredients are well known to those skilled in the art.
Suitable active ingredients which may be admixed with the amorphous pyriflutole triethanolamine salt of the present invention are, for example, those known from the world institute of New agricultural chemical technology, the Chinese agricultural science and technology Press, 2010.9 and the references cited therein. For example, the various substances mentioned below (remarks: name of the compound, or common name according to the International organization for standardization (ISO), or chemical name, with code numbers where appropriate): acetochlor, butachlor, alachlor, propisochlor, metolachlor, s-metolachlor, pretilachlor, propyzamide, pretilachlor, napropamide, R-levulinyl-propyzamide, propanil, mefenacet, dibenzamide, diflufenican, flumetsulam, bromobutyrolac, dimethenamid, mefenacet, metazachlor, isoxaflutole, ryegrass methyl ester, loflutolane, diacrylamide, pethoxamide, butachlor, propisochlor, cyprosulfamide, flumetsulam, heptanoyl, isobutramine, propyzamide, terbutamid, dimethenamid, larvamide, trimethylcyclam, clofenamid, propyzamide, penoxulamide, carpronide, diflormid, trinitrol, butachlor, butafenacet, butachlor, benfluralin, bencarbzamide, pencyhalonil, metolachlor, bencarbzamide, pencyhalonil, buta, Grazing amine, bensulfuron, quinoxalamine, bensulfuron-methyl, naproxen, acetochlor, naphazel, thiachlor, pyraflufen, bensulfuron-methyl, prochloraz, clofenamide, butamidam, flupiram, atrazine, simazine, prometryn, cyanazine, simetryn, ametryn, prometryn, ipratron, flurazin, terbutryn, triazineone-flumetsulam, ciprofloxacin, glycazine, pradapazine, prometryn, simatong, azidezin, diuron, isopentetryn, cycloprozine, ametryn, terbuthylazine, terbuton, metocloprid, cyanazine, bentazon, clonazine, atrazine, metribuzin, cyanuric acid, indaziflazaflam, chlorsulfuron, meturon, bensulfuron, chlorimuron, tribenuron-methyl, thifensulfuron-methyl, pyrazosulfuron-methyl, sulfosulfuron-methyl, sulfometuron, Cinosulfuron, triasulfuron, sulfometuron-methyl, nicosulfuron, ethametsulfuron, amidosulfuron, ethoxysulfuron, cyclosulfamuron, rimsulfuron, azimsulfuron, primisulfuron-methyl, flusulfuron-methyl, flupyrsulfuron-methyl, epoxysulfuron, imazosulfuron, primisulfuron-methyl, prosulfuron, sulfosulfuron, trifloxysulfuron, triflusulfuron, metsulfuron-methyl sodium, flupyrazosulfuron, methisulfuron-methyl, primisulfuron, propysilfuron (Propyrisulfuron), metribusulfuron, acifluorfen-methyl, fomesafen, lactofen, fluoroglycofen-ethyl, oxyfen, prosulfuron, benfuresafen, trifloxysulfuron, metofen-ethyl, metofen, trifloxysulfuron, fluroxypyr, fluridone, benfop, benfluridone, benfurazolin, benfluridone, benfurbenflur, Dimethofen, oxyfluorfen, clofenflurate, Halosafen, chlortoluron, isoproturon, linuron, diuron, sifenuron, fluometuron, benzthiauron, methabenzuron, prosulfuron, sulfosulfuron, clomauron, clodinafuron, clofensulfuron, metoxuron, bromuron, metoxuron, meturon, fensulfuron, prosulfuron, subtilon, cuarone, metolachlor, cycloaroron, cyclouron, thifluuron, buthiuron, kuron, cumuron, metoxuron, methamidothion, metominosulfuron, trifolium, isoxafluron, isoxauron, moneuronon, aniron, methicuron, chloretron, clotururon, teuron, benuron, pennison, phenmedibensulfuron, bensulfuron, benazolin, propham, buthan, thiuron, buthan, benazolin, buthan, benazolin, buthan, benazol, Thiobencarb, merthiolane, diclofop, triallate, penoxsulam, pyributicarb, dichlorfon, chlodine, ethiofencarb, prosperon, clenbuterol, prosulfocarb, dichotomenazone, ethiofencarb, 2, 4-d butyl ester, 2 methyl 4-sodium chloride, 2, 4-d isooctyl ester, 2 methyl 4-chloroisooctyl ester, 2, 4-d sodium salt, 2, 4-d triethanolamine salt, 2 methyl 4-chloroethyl thioester, 2 methyl 4-chloro, 2, 4-d propionic acid, high 2, 4-d propionate, 2, 4-d butyric acid, 2 methyl 4-chloro-butyric acid, 2 methyl 4-chloro butyric acid, 2,4, 5-nasal discharge, 2,4, 5-d propionic acid, 2,4, 5-d butyric acid, 2,4, 5-chloro propionic acid, 2-chloro butyric acid, 2-chloro propionic acid, 2-d-chloro butyric acid, 2-chloro-salt, triclosan, clorac, dichlorobenzoic acid, metocloprofenac, diclofop-methyl, fluazifop-P-ethyl, haloxyfop-methyl, haloxyfop-p-ethyl, quizalofop-p-ethyl, fenoxaprop-p-ethyl, propaquizafop-ethyl, clodinafop-ethyl, haloxyfop-ethyl, trifoliate-ethyl, clomazone, paraquat-p-ethyl, benfurazolin, clorflofop-methyl, benazolin-methyl, propafop-ethyl, butyfen-ethyl, chloroethafloxacin, aminofluanid, benazolin, chlorpropham, methamphrenalin, propamocarb-P-methyl, glufosinate, benfop-methyl, benfop-ethyl, benfop-methyl, benfop-ethyl, benfop-P, benfop-P, benfop-P, mex-P, mefenofos, me, Imazamox, imazapic ammonium salt, imazapic, imazamethabenz, fluroxypyr-meptyl, clopyralid, picloram, triclopyr, dithiopyr, haloxydine, triclopyr, thiazopyr, fluridone, aminopyralid, diflufenzopyr, butoxyethyl triclopyr, Cliodinate, sethoxydim, clethodim, bentazone, diclofen, clethodim, tralkoxydim, topramezone, buthiazole, metribuzin, azinone, metamitron, amitrizone, Amibuzin, bromoxynil octanoyl, ioxynil, dichlobenil, acetonitrile, pyraclonil, hydroxybensulam, Iodobonil, herbicidal bromine, flumetsulam, penoxsulam, sulfluramid, clofenapyr, flumetsulam, cuaminosulfame, sulfadiazinon, halosulfuron, sulfadiazinon, bispyribac-sodium, pyribenzoxim, pyriminobac-methyl, pyrithiobac-methyl, mesotrione, sulcotrione, Tembotrione, Tefuryltrione, Bicyclopyrone, kettopiradox, isoxaflutole, fenoxasul, Methiozolin, isopyrafen, pyraflufen, pyraflutole, difenzoquat, pyraclofen, pyraflufen, pyroxsulazole, pyraflufen, metamitron, carfentrazam, flumetsul, sulfentrazone, benconazole, bencarane, benflumethazine, isoxaflutole, cycloxathidin, terbacil, flapciclone, indoxacarb, flumiclorac, propyzamide, flumethazine, metoclopramide, carfentrazone, metoclopramide, metocloprofen, metoclopramide, metoclopr, Fentrazamide, pyrifluazifop-methyl, pyriminostrobin, bromogeramine, didaphylm, pyridaben, Pyridafol, quinclorac, chloroquinate, bentazon, pyridate, oxaziclomefone, benazolin, clomazone, isoxaprop-p-ethyl, isoproylether, propylclomefone, indanthrone, sodium chlorate, thatch, trichloroacetic acid, monochloroacetic acid, hexachloroacetone, tetrafluoropropionic acid, moroxydine, fast grass, bromophenol oxime, triazasulam, imazazol, flurtamone, furbenfurathion, furbenfuresafen, ethafurazafenin, clofenac, fluorochloridone, fludioxonil, pyributicarb, acrolein, benfurazapyr-methyl, imazachlor, oatmeal, thiadiazolidine, linanine, hydroxybenzoquinone, amlodipine, metominophenidone, penoxsulam, dichlorophoron, alofen, metoclopramide, iprodione, pyraclofenapyr, iprodione, cammondiclor, aminocyclopyrachlor, thiocyananilide, clethodim, fenclorim, cloquintocet-mexyl, mefenpyr-diethyl, furazolidone, imazamox, isoxadifen, dichlormid, halauxin, DOW848, UBH-509, D489, LS 82-556, KPP-300, NC-324, NC-330, KH-218, DPX-N8189, SC-0744, CO535, DK-8910, V-53482, PP-600, MBH-001, DOWHOW-9201, ET-751, KIH-6127 and KIH-2023. Experiments prove that the amorphous cyflufenac triethanolamine salt and one or more of the herbicides have obvious synergistic and synergistic effects.
Preferably, the other active ingredients include, but are not limited to: diflufenican (CAS number: 83164-33-4), isoxaflutole (CAS number: 141112-29-0), clodinafop-propargyl (CAS number: 105512-06-9), pinoxaden (CAS number: 243973-20-8), isoproturon (CAS number: 34123-59-6), chlortoluron (CAS number: 15545-48-9), bromoxynil octanoate (CAS number: 1689-99-2), metribuzin (CAS number: 21087-64-9), pyridate (CAS number: 55512-33-9), amicarbazone (CAS number: 129909-90-6), 2-methyl 4-chloro (CAS number: 94-74-6), fluroxypyr (CAS number: 69377-81-7), halauxifen (CAS number: 943831-98-9), dicamba (CAS number: 1918-00-9), One or more of saflufenacil (CAS number: 372137-35-4), flufenacet (CAS number: 142459-58-3), metolachlor (CAS number: 178961-20-1), xaflufen (CAS number: 447399-55-5), pendimethalin (CAS number: 40487-42-1), mesosulfuron-methyl (CAS number: 208465-21-8), flucarbazone (CAS number: 181274-17-9), pyroxsulam (CAS number: 422556-08-9), prosulfocarb (CAS number: 52888-80-9) and derivatives thereof.
In the context of the present specification, if the abbreviated forms of the common name of the active compounds are used, all customary derivatives, such as esters and salts, and also isomers, in particular optical isomers, in particular one or more commercially available forms, are included in each case. If the generic name denotes esters or salts, all other customary derivatives, such as other esters and salts, free acids and neutral compounds, and also isomers, in particular optical isomers, in particular one or more commercially available forms, are also included in each case. The chemical name given for a compound means at least one compound covered by the generic name, with compounds generally being preferred. In the case of sulfonamides, such as sulfonylureas, salts also include those formed by exchange of cations with hydrogen atoms in the sulfonamide group. For example, 2-methyl-4-chloro derivatives include, but are not limited to: 2 methyl 4 chloro sodium salt, potassium salt, dimethyl ammonium salt, isopropyl amine salt, etc., and 2 methyl 4 chloromethyl ester, ethyl ester, isooctyl ester, ethyl thioester, etc.
In the context of the present invention, the salts of the compounds are preferably in the form of the respective alkali metal, alkaline earth metal or ammonium salts, preferably in the form of the respective alkali metal salts, more preferably in the form of the respective sodium or potassium salts, most preferably in the form of the respective sodium salts.
The total mass percentage of the active ingredients in the composition accounts for 1-95% of the total mass.
The safener is preferably one or more of isoxadifen (CAS: 163520-33-0), cyprosulfamide (CAS: 221667-31-8), mefenpyr (CAS: 135590-91-9), cloquintocet (CAS: 99607-70-2), gibberellic acid (CAS: 7-06-5), furilazole (CAS: 121776-33-8) and metacamifen (CAS: 129531-12-0).
The composition is in the form of aqueous Suspension (SC), dispersible oil suspension (OD), Emulsifiable Concentrate (EC), Microemulsion (ME), Granules (GR), Suspoemulsion (SE) or Water Dispersible Granules (WDG).
The invention also provides a method for controlling weeds in crops, which comprises applying a herbicidally effective amount of the amorphous bicyclopyrone triethanolamine salt or the herbicidal combination composition to the crops or the weed areas.
The invention also provides the use of the amorphous cyflufenac triethanolamine salt or the herbicidal compound composition for controlling weeds; preferably, it is used for controlling weeds in crops of useful plants, which are transgenic or treated by genome editing techniques.
Preferably, the crop is wheat, and the weed is a grass weed, such as alopecurus maytans, alopecurus japonicus etc.
Tests prove that the amorphous-state cyflutolanil triethanolamine salt has good water solubility, the solubility in water is increased by nearly forty times compared with cyflutolanil, and the solubility in water is increased by nearly twenty times compared with cyflutolanil sodium salt, and the amorphous-state or compound composition of the amorphous-state or the amorphous-state and other active ingredients has good control effect on gramineous weeds in wheat fields, and the effect is obviously better than that of cyflutolanil and the cyflutolanil sodium salt.
Drawings
Figure 1 is an XRPD pattern of amorphous ciclopirox triethanolamine salt according to example 2 of the present invention.
Detailed Description
The present invention is described in further detail below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples, and that all the technologies realized based on the above subject matter of the present invention belong to the scope of the present invention.
XRPD determination method
The instrument model is as follows: bruker D8advance, target: cu ka (40kV, 40mA), sample-to-detector distance: 30cm, scanning range: 3 ° -45 ° (2 θ value), scanning step diameter: 0.05 s.
Example 1
According to the CN 105218449B method, raw materials of the ciclopirox are prepared, then 1 kg of the ciclopirox reacts with 0.3 kg of 30% sodium hydroxide aqueous solution, a large amount of solid crystals are obtained through reaction, and the solid crystals are filtered and dried to obtain the powder of the sodium salt of the ciclopirox.
Example 2
1 kg of the ciclopirox-flutole obtained in example 1 was reacted with 0.27 kg of 50% triethanolamine aqueous solution to obtain a large amount of solid crystals, and the solid was filtered and dried to obtain the powder of the ciclopirox-flutole triethanolamine salt.
Putting 1000 g of cyflufenac triethanolamine salt into a 10L flask, adding 3L of dichloromethane, methanol, ethanol, acetone or ethyl acetate, heating and stirring until the raw materials are completely dissolved, carrying out rotary evaporation on the solvent at 50 ℃, and carrying out mechanical grinding after the solvent is completely evaporated to obtain amorphous cyflufenac triethanolamine salt powder.
Determination of solubility in Water
The three powders of ciclopirox and its sodium salt obtained in example 1 and the amorphous ciclopirox triethanolamine salt obtained in example 2 were dissolved in pure water, shaken at 25 ℃ for 24h to be fully dissolved, then centrifuged and filtered, the filtrate was filtered through a 0.22 μm filter membrane, and the solubility in water was determined by HPLC, the results are shown in table 1 below:
TABLE 1 test results of solubility in water of various samples
Sample (I) Solubility in pure Water (g/L)
Cypriflutole 0.525
Cyclopyraflutole sodium salt 1.132
Amorphous cyhalofop-butyl triethanolamine salt 20.093
As can be seen from the results in table 1, the solubility of amorphous ciclopirox olamine salt is significantly increased compared to ciclopirox and its sodium salt.
Examples 1 and 2 formulation processing and field efficacy testing
The ciclopirox and the sodium salt thereof obtained in the example 1 and the amorphous ciclopirox triethanolamine salt obtained in the example 2 are processed into the following preparation according to the same formula, wherein the specific formula is as follows, and the effective components A represent ciclopirox, ciclopirox sodium salt and the amorphous ciclopirox triethanolamine salt.
6％A OD
6 percent of A, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 2.5 percent of organic bentonite, 2.5 percent of fumed silica, 5 percent of 150# solvent oil and methyl oleate
14% A diflufenican OD
6 percent of A, 8 percent of diflufenican, 5 percent of calcium dodecyl benzene sulfonate, 8 percent of fatty alcohol-polyoxyethylene ether, 4 percent of castor oil-polyoxyethylene ether, 2.0 percent of organobentonite, 1.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
9% of A-isoxaflutole SC
6 percent of A, 3 percent of isoxaflutole, 5 percent of phenethylphenol polyoxyethylene ether phosphate triethanolamine salt, 1.5 percent of fatty alcohol-polyoxyethylene ether, 0.2 percent of xanthan gum, 2.2 percent of magnesium aluminum silicate, 0.1 percent of defoaming agent, 4 percent of glycol and water to complement
7.5% of A clodinafop-propargyl OD
6 percent of A, 1.5 percent of clodinafop-propargyl, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.0 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
7.5% Azaolinate OD
6 percent of A, 1.5 percent of pinoxaden, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.0 percent of organobentonite, 2.0 percent of fumed silica, 20 percent of No. 150 solvent oil and methyl oleate
56% A isoproturon WDG
6% of A, 50% of isoproturon, 5% of sodium dodecyl sulfate, 8% of polycarboxylate dispersant, 2% of polyethylene glycol 4000, 5.0% of precipitated silica and kaolin
66% A-chlorotoluron WDG
6% of A, 60% of chlortoluron, 5% of sodium dodecyl sulfate, 8% of polycarboxylate dispersant, 2% of polyethylene glycol 4000, 5.0% of precipitated silica and kaolin
26% A bromoxynil octanoate OD
6 percent of A, 20 percent of bromoxynil octanoate, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate are complemented
12% A metribuzin OD
6 percent of A, 6 percent of metribuzin, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organic bentonite, 2.5 percent of fumed silica, 10 percent of 150# solvent oil and methyl oleate
32.3% of A-pyridate OD
2.3 percent of A, 30 percent of pyridate, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.8 percent of organic bentonite, 2.5 percent of fumed silica, 20 percent of No. 150 solvent oil and methyl oleate
13% A amicarbazone OD
6 percent of A, 7 percent of amicarbazone, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.3 percent of organic bentonite, 2.0 percent of fumed silica, 20 percent of 150# solvent oil and methyl oleate
26% A.2M 4 chloro SL
6% of A, 20% of 2-methyl-4-chloro, 6% of triethanolamine, 40% of ethanol, 10% of fatty alcohol-polyoxyethylene ether sodium sulfate and water
11% A.Fluroxypyr OD
6 percent of A, 5 percent of fluroxypyr, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 2.3 percent of organobentonite, 2.0 percent of fumed silica, 12 percent of No. 150 solvent oil and methyl oleate
6.5% A.Fluorochloropyridine ester OD
6 percent of A, 0.5 percent of fluorochloropyridine ester, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.3 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
18% A dicamba SL
6% of A, 12% of dicamba, 7% of triethanolamine, 40% of ethanol, 10% of fatty alcohol-polyoxyethylene ether sodium sulfate and water
8.5% A saflufenacil OD
6 percent of A, 2.5 percent of saflufenacil, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
18% A-flufenacet OD
6 percent of A, 12 percent of flufenacet, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 2.0 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of 150# solvent oil and methyl oleate
14% A-S-metolachlor OD
6 percent of A, 8 percent of s-metolachlor, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
12% A. Sulfonyl pyraflufen OD
6 percent of A, 6 percent of sulphone pyraflufen-ethyl, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 2.5 percent of organic bentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
22% A. pendimethalin OD
2 percent of A, 20 percent of pendimethalin, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 2.5 percent of organic bentonite, 2.0 percent of fumed silica, 20 percent of 150# solvent oil and methyl oleate
6.6% A. mesosulfuron-methyl OD
6 percent of A, 0.6 percent of mesosulfuron, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
8% A.Flucarbazone-sodium OD
6 percent of A, 2 percent of flucarbazone-sodium, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organic bentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
6.6% A. Sulfoxaden OD
6 percent of A, 0.6 percent of pyroxsulam, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organobentonite, 2.0 percent of fumed silica, 10 percent of No. 150 solvent oil and methyl oleate
43% A-prosulfocarb OD
3 percent of A, 40 percent of prosulfocarb, 5 percent of calcium dodecyl benzene sulfonate, 5 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil polyoxyethylene ether, 2.5 percent of organic bentonite, 2.0 percent of fumed silica, 10 percent of 150# solvent oil and methyl oleate
Field effect test: after 3 leaves of wheat, the 3-4 leaf period of the Aleurea victoria L.and the 3-4 leaf period of the Aleurea victoria L.of Japan, an electric sprayer is added with water with the amount of 30 kg/667 m2The control effect (visual observation) of the average plant is investigated as follows by spraying stem leaves uniformly and spraying the stem leaves, wherein the area of the cell is 30 square meters, and the control effect (visual observation) of the average plant is investigated 45 days after each treatment is repeated 4 times of pesticide application, and is shown in table 2.
TABLE 2 weed control effect (%) of different preparations in wheat direct seeding field-control effect after 45 days of application
Figure BDA0001920803470000091
Figure BDA0001920803470000101
As can be seen from the table 2, compared with the effect of preventing and killing weeds in wheat direct seeding fields by using different bicyclopyrone preparations, the effect of preventing and killing the triethanolamine salt of bicyclopyrone in an amorphous state is obviously higher than that of bicyclopyrone and sodium salt preparations thereof.
Meanwhile, through a plurality of tests, the compound and the composition thereof can prevent and kill a plurality of key grassy weeds and broadleaf weeds. Tests on wheat, corn, rice, sugarcane, soybean, cotton, sunflower, potato, fruit trees, vegetables and the like under different application modes also show excellent selectivity and commercial value.
The foregoing embodiments illustrate the principles, principal features and advantages of the invention, and it will be understood by those skilled in the art that the invention is not limited to the foregoing embodiments, which are merely illustrative of the principles of the invention, and that various changes and modifications may be made therein without departing from the scope of the principles of the invention.

Claims (16)

1. An amorphous form of ciclopirox olamine salt, characterised by the presence in amorphous form as detected by X-ray powder diffraction.
2. The amorphous bicyclopyrone triethanolamine salt according to claim 1, wherein: the X-ray powder diffraction pattern is substantially as shown in figure 1.
3. A process for the preparation of the amorphous bicyclopyrone triethanolamine salt according to any of claims 1-2, wherein: the method comprises the following steps: dissolving the bicyclopyrone triethanolamine salt in dichloromethane, methanol, ethanol, acetone or ethyl acetate by stirring, performing reduced pressure rotary evaporation on the solvent at 40-60 ℃, and then performing mechanical grinding to obtain the amorphous bicyclopyrone triethanolamine salt.
4. A weeding compound composition is characterized in that: comprising (i) the amorphous bicyclopyrone triethanolamine salt of any one of claims 1-2; (iii) an agrochemically acceptable formulation auxiliary.
5. A herbicidal combination according to claim 4, which further comprises (ii) one or more further active ingredients and/or safeners.
6. A herbicidal combination according to claim 5, wherein the further active ingredient is selected from one or more of diflufenican, isoxaflutole, clodinafop-propargyl, pinoxaden, isoproturon, chlorotoluron, bromoxynil octanoate, metribuzin, pyridate, amicarbazone, 2 methyl 4 chloro sodium salt, 2 methyl 4 chloro potassium salt, 2 methyl 4 chloro dimethyl ammonium salt, 2 methyl 4 chloro isopropyl amine salt, 2 methyl 4 chloro methyl ester, 2 methyl 4 chloro ethyl ester, 2 methyl 4 chloro isooctyl ester, 2 methyl 4 chloro ethyl thioester, fluroxypyr, fluroxypyridine, dicamba, saflufenacil, flufenacet, metolachlor, propyzamide, pyraflufen-ethyl, pendimethalin, mesosulfuron, flucarbazone, pyroxsulam, prosulfocarb.
7. A herbicidal compound composition according to claim 6, wherein the total mass percentage of the active ingredients in the composition accounts for 1-95% of the total amount.
8. A herbicidal compounded composition according to any one of claims 4 to 7, characterized in that: the formulation of the composition is water suspending agent, dispersible oil suspending agent, missible oil, microemulsion, granules, suspoemulsion or water dispersible granules.
9. A method of controlling weeds in crops of weeds, which comprises applying to the crop or to the locus of weeds a herbicidally effective amount of the amorphous pyriflufenac triethanolamine salt according to any one of claims 1 to 2 or the herbicidal combination according to any one of claims 4 to 8.
10. The method of claim 9, wherein the crop is wheat and the weed is a grass weed.
11. The method according to claim 10, wherein the grassy weed is a alopecurus or a japanese alopecurus.
12. Use of the amorphous ciclopirox olamine salt according to any one of claims 1 to 2 or the herbicidal combination composition according to any one of claims 4 to 8 for weed control.
13. Use according to claim 12, for controlling weeds in crops of useful plants.
14. Use according to claim 13, wherein the useful crop is a transgenic crop or a crop treated with genome editing technology.
15. Use according to claim 13 or 14, wherein the crop is wheat and the weed is a grass weed.
16. Use according to claim 15, wherein the grassy weeds are alopecurus or alopecurus japonicus.
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