91 results about "Imidazolidinone" patented technology

The present disclosure relates to herbicidal combinations, compositions and methods for controlling weeds comprising the carbamate herbicide asulam and an additional herbicide selected from the group comprising cyclohexanedione oxime herbicides, pyrimidinylsulfonyhirea herbicides, triazolopyrimidine herbicides, imidazolinone herbicides, alkylazine herbicides, triketone herbicides, N-phenylimide herbicides or chloroacetamide herbicides. Specifically, the additional herbicide may be one of clethodim, chlorimuron, diclosulam, imazamox, imazethapyr, indaziflam, mesotrione, saflufenacil, tiafenacil or S-metolachlor.

The invention discloses a method for recycling silicon industry by-product silicon tetrachloride based on gallium electrode electro-deposition, which is used for solving the problems of low solubility and crystal structure in the process of preparing silicon by an electro-deposition method. According to the method, a deep eutectic solvent system composed of 1, 3-dimethyl-2-imidazolinone and 1, 3-dimethylurea is adopted to efficiently absorb silicon tetrachloride in a green manner and prepare the electrolyte, and the electrolyte is converted into high-purity, uniform and compact silicon crystals by using a liquid gallium electrode electrodeposition technology, so that effective conversion from wastes to high-added-value materials is realized. Meanwhile, the low-toxicity eutectic solvent which is easy to prepare and has good biodegradability is adopted to replace traditional ionic liquid or other chemical reagents, so that the safety, the environmental protection property and the sustainability of the process are remarkably improved, and the treatment cost and the environmental burden are reduced at the same time.

The invention discloses a polyphenylene sulfide oligomer separation method, which comprises: cooling a polyphenylene sulfide product synthesized by a sodium sulfide polymerization reaction, carrying out centrifugation, and carrying out solid-liquid separation to obtain polyphenylene sulfide and a mother solution; the preparation method comprises the following steps: putting polyphenylene sulfide into an aqueous solution of diethanol amine and 1, 3-dimethyl-2-imidazolinone for washing, and collecting a washing solution; mixing the washing solution and the mother solution, carrying out candle type filtration to obtain a filter cake, washing the filter cake with deionized water, and drying to obtain a polyphenylene sulfide oligomer; according to the method, the polyphenylene sulfide is washed in the aqueous solution of the diethanol amine and the 1, 3-dimethyl-2-imidazolinone, oligomer in the polyphenylene sulfide can be better washed out, meanwhile, the polyphenylene sulfide oligomer in the mother solution and the washing solution can be separated from other substances through the addition of the diethanol amine and the 1, 3-dimethyl-2-imidazolinone, and therefore the polyphenylene sulfide can be better washed out. The yield and the purity of the polyphenylene sulfide oligomer are improved.

Herbicide-resistant rice plants, isolated polynucleotides that encode herbicide resistant and wild-type acetohydroxy-acid synthase large subunit 1 (AHASL1) polypeptides, and the amino acid sequences of these polypeptides, are described. Expression cassettes and transformation vectors comprising the polynucleotides of the invention, as well as plants and host cells transformed with the polynucleotides, are described. Methods of using the polynucleotides to enhance the resistance of plants to imidazolinone herbicides, and methods for controlling weeds in the vicinity of herbicide-resistant plants are also described.

The invention belongs to the technical field of preparation of compounds, and discloses high-purity 2-imidazolidinone and a preparation method thereof. The preparation method of the high-purity 2-imidazolidinone comprises the following steps: reacting ethylenediamine, dimethyl carbonate and an ionic liquid catalyst to obtain primary 2-imidazolidinone; mixing the obtained primary 2-imidazolidinone with dimethyl carbonate, and filtering to obtain high-purity 2-imidazolidinone; the ionic liquid catalyst is chloridized 1-butyl-3-methylimidazole, brominated 1-butyl-3-methylimidazole, chloridized 1-ethyl-3-methylimidazole, brominated 1-ethyl-3-methylimidazole, 1-butyl-3-methylimidazole tetrafluoroborate or 1-ethyl-3-methylimidazole tetrafluoroborate, and the ionic liquid catalyst is an ionic liquid catalyst which is chloridized 1-butyl-3-methylimidazole, brominated 1-ethyl-3-methylimidazole, brominated 1-ethyl-3-methylimidazole tetrafluoroborate or 1-ethyl-3-methylimidazole tetrafluoroborate. According to the preparation method of the high-purity 2-imidazolidinone, a small amount of high-boiling-point byproducts such as MI and NMI and a dimethyl carbonate solution are further treated, and the target product MI with high purity is obtained.

Provided is a use of a compound represented by general formula (I) in combination with PD-1 inhibitor or PD-L1 inhibitor in the preparation of an anti-cancer drug (I).

The present application relates to fine chemicals, and in particular to a method for preparing 2-imidazolidinone by using carbon dioxide. The method comprises reacting CO2 and ethylenediamine in the presence of inorganic sulfide to obtain 2-imidazolidinone. The method uses cheap and readily available sulfur-containing compounds as catalysts for activating CO2 for the first time, and converts ethylenediamine and CO2 into 2-imidazolidinone under relatively low temperature and supercritical conditions. Compared with the prior art, the reaction conditions of the present application are more simple and controllable, and do not require expensive and complex catalysts for post-processing, have the advantages of low energy consumption and low cost, and have extremely high popularization and application value.

The invention belongs to the technical field of organic matter preparation, and discloses 1, 3-dimethyl-2-imidazolinone and a green synthesis method thereof. The synthesis method comprises the following steps: in a carbon dioxide atmosphere, mixing methanol with a catalyst, reacting to obtain dimethyl carbonate, mixing cesium carbonate, ethylenediamine and methanol, introducing carbon dioxide, reacting to obtain 2-imidazolidinone, and reacting dimethyl carbonate, 2-imidazolidinone and the catalyst to obtain 1, 3-dimethyl-2-imidazolidinone. The raw materials in the whole technological process are in closed circulation, circular economy is achieved to the maximum extent, and the method is a green and environment-friendly synthesis process.

To provide a composite gas adsorbent, a method for producing the composite gas adsorbent, a deodorizing filter, and an air purifier, which are capable of removing, in a well-balanced manner and rapidly, a composite gas containing more than one of aldehyde odor substances, basic odor substances, acidic odor substances and volatile organic compounds existing in the environment.SOLUTION: A composite gas adsorbent comprises activated carbon, where 3-30 mass% of 2-imidazolidinone and 3-30 mass% of phosphoric acid are supported on the activated carbon, and potassium is contained in an amount of 0.1 mass fraction% or more. The adsorbent has an acetone equilibrium adsorption performance of 12.0 mass fraction% or more, measured using acetone at a concentration of 37.5 g / m3 in conformity with JIS K 1474 (2014). The adsorbent has adsorption performance with respect to a composite gas containing more than one aldehyde odor substances, basic odor substances, acidic odor substances and volatile organic compounds.SELECTED DRAWING: None

The invention discloses a continuous production process of 1, 3-dimethyl-2-imidazolinone, and relates to the technical field of chemical processes, the process takes ethylene urea, formic acid, paraformaldehyde and water as raw materials, and the whole-process continuous production is realized through the steps of material preparation, batching, continuous reaction and post-treatment. The method is characterized in that water is used as a solvent, the reaction temperature is 150-250 DEG C, the pressure is 1-8 MPa, and the purity of the rectified product is greater than or equal to 99.5%. The method overcomes the defects of insufficient reaction and high cost of the existing intermittent process, has the advantages of high conversion rate, few impurities, few three wastes, easiness in automation and the like, and is suitable for industrial large-scale production.

To provide a drug that inhibits the interaction between urokinase receptor and urokinase, focusing on various physiological actions caused by the inhibition of plasmin action.SOLUTION: Provided is 1-(2-hydroxyethyl)-2-imidazolidinone (HEI) or derivatives thereof, or salts thereof, as a drug that inhibits the interaction between urokinase receptor and urokinase. 1-(2-hydroxyethyl)-2-imidazolidinone (HEI) or derivatives thereof, or salts thereof, inhibits the action of plasmin through inhibition of the interaction between urokinase receptor and urokinase, and exerts various physiological actions such as inhibition of inflammation, prevention of the degradation of extracellular matrix, and inhibition of cancer invasion.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of 2-imidazolidinone and a catalyst used in the preparation method. The invention discloses a preparation method of a sulfonic acid functionalized ionic liquid catalyst. The preparation method comprises the following steps: (1) synthesis of a PMO carrier; (2) sulfonic acid functionalization: preparing a sulfonic acid functionalized material SMO-SO3H by using a PMO carrier; and (3) immobilizing and activating the ionic liquid to obtain the sulfonic acid functionalized ionic liquid catalyst (SMO-IL). The invention also discloses a method for efficiently and greenly preparing 2-imidazolidinone by taking ethylene carbonate and urea as raw materials under the action of the self-made catalyst.

The present invention belongs to the field of functional porous materials, and particularly relates to imidazolidinone compounds, porous organic polymer gels, and their preparation methods and applications. The present invention uses amino acid amide monomers and pyridine aldehyde monomers as raw materials to prepare a positively charged porous organic polymer gel in one step. The porous organic polymer gel has good processing performance and high conductivity.

The invention provides a one-pot synthesis method of 1, 3-dimethyl-2-imidazolidinone, which comprises the following steps: mixing a basic catalyst, an ionic liquid and methanol, adding ethylenediamine to synthesize 2-imidazolidinone under a low-temperature condition, and raising the temperature to enable the 2-imidazolidinone and dimethyl carbonate to have an N-methylation reaction. According to the synthesis method, the ionic liquid is adopted as the catalyst, on one hand, the ionic liquid serves as a phase transfer catalyst, and the acid binding effect of the acid binding agent is enhanced; on the other hand, as a carbene catalyst, dimethyl carbonate is activated, so that the acylation and methylation reaction efficiency is improved.

A method for electroplating aluminum or aluminum-zinc alloy on the surface of a magnesium-lithium alloy using a room temperature aprotic solvent belongs to the field of metallurgy technology. The present invention uses 1,3-dimethyl-2-imidazolidinone and lithium hexafluorophosphate to prepare a room temperature aprotic solvent, uses anhydrous aluminum chloride as an aluminum salt, and zinc chloride as a zinc salt, and electroplates aluminum or aluminum-zinc alloy on the surface of a magnesium-lithium alloy at 20°C to 50°C. The present invention adopts an aprotic solvent, and does not need to perform zinc immersion and copper plating on the magnesium-lithium alloy. The pretreatment process of the magnesium-lithium alloy is simple and easy to operate. The aluminum or aluminum-zinc alloy coating obtained by electroplating is evenly distributed on the surface of the substrate, which significantly improves the corrosion resistance of the magnesium-lithium alloy and improves the electrical conductivity of the electrolyte. The method provided by the present invention has a low production temperature, can reduce production energy consumption, and at the same time reduce corrosion to equipment, and the operation process is simple.

The present invention relates to herbicide mixtures comprising isoxaflutol, pyroxasulfone, and an imidazolinone herbicide. The herbicide mixtures may comprise at least one additional herbicide selected from the group consisting of glyphosate and its salts, glufosinate and its salts, L-glufosinate (glufosinate-P) and its salts, dicamba and its salts and esters, 2,4-D and its salts and esters, bicyclopyrone, phenquinetrione, mesotrione, tembotrione, tolpyralate, and topramezone. Furthermore, the invention relates to methods and uses for applying the herbicide mixtures, particularly for controlling unwanted vegetation in soybean and cotton crops.

[Problem] To provide an epoxy resin degradation method for degrading synthetic resins including an epoxy resin obtained by binding an epoxy resin monomer having an epoxy group with at least one of a diamine compound, a monoamine compound, an acid anhydride, a dithiol compound, and an imidazole compound that are capable of binding to an epoxy group. [Solution] The present invention involves mixing a synthetic resin, a base, and an organic solvent containing at least one of 1,3-dimethyl-2-imidazolidinone, 1,3-dimethylpropylene urea, tetramethylurea, N,N-dimethylacetamide, N,N-dimethylformamide, N-methyl-2-pyrrolidone, and dimethyl sulfoxide.

The invention discloses a 1, 4, 5, 6-tetrahydropyridazine spiroimidazoline-2-ketone compound as well as a synthesis method and application thereof, and belongs to the field of organic chemical synthesis and medicines. The structure of the compound takes a spiroheterocycle consisting of 1, 4, 5, 6-tetrahydropyridazine and imidazoline-2-ketone as a skeleton, and the synthesis method comprises the following steps: dissolving 4, 5-dimethylimidazoline-2-ketone (I) and alkali in an organic solvent at 0 DEG C, stirring, adding alpha-halogenated hydrazone (II), continuously stirring for reaction, and after the reaction is finished, concentrating under reduced pressure, separating and purifying to obtain the compound. The compound provided by the invention has good potential application value in antitumor drug research; the synthesis method disclosed by the invention is novel and has the advantages of simplicity in operation, mild reaction conditions, good substrate universality, high yield and the like.

To provide a photosensitive resin composition containing an organic solvent other than NMP and exhibiting excellent photosensitivity.SOLUTION: A photosensitive resin composition contains: a polyimide precursor having a polymerizable unsaturated bond; a photopolymerization initiator; and a solvent. The solvent contains at least one selected from the group consisting of N-ethyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, and tetramethylurea.SELECTED DRAWING: None

This invention relates to a method for preparing a masterbatch, comprising the steps of: (a) contacting at least one initial polymer comprising at least one carbon-carbon unsaturated bond with at least one 1,3-dipolar grafting agent having at least one nitrile oxide dipole and at least one N-substituted or unsubstituted imidazolinone functional group in the presence of at least one organophosphorus additive, said organophosphorus additive being selected from triphosphates, phosphonates, hypophosphonates, phosphine oxides, and mixtures thereof; and (b) recovering the masterbatch obtained in the previous step. The invention also relates to masterbatches, compositions comprising masterbatches, and tires comprising said compositions.

The invention discloses a method for electroplating aluminum or an aluminum-zinc alloy on the surface of a magnesium-lithium alloy by using a room-temperature aprotic solvent, and belongs to the technical field of metallurgy. According to the method, 1, 3-dimethyl-2-imidazolinone and lithium hexafluorophosphate are used for preparing a room-temperature aprotic solvent, anhydrous aluminum chloride is used as aluminum salt, zinc chloride is used as zinc salt, and aluminum or aluminum-zinc alloy is electroplated on the surface of the magnesium-lithium alloy at the temperature of 20-50 DEG C. According to the method, the aprotic solvent is adopted, the magnesium-lithium alloy does not need to be subjected to zinc dipping and copper plating treatment, the magnesium-lithium alloy pretreatment process is simple and convenient to operate, the aluminum or aluminum-zinc alloy plating layer obtained through electroplating is evenly distributed on the surface of the substrate, the corrosion resistance of the magnesium-lithium alloy is remarkably improved, and the conductivity of the electrolyte is improved. The method provided by the invention is low in production temperature, can reduce the production energy consumption, reduces the corrosion to equipment, and is simple in operation process.

The utility model discloses drying and screening integrated equipment for 2-imidazolidinone production, and relates to the technical field of drying and screening equipment, the drying and screening integrated equipment comprises a supporting frame, a drying box and a box cover, a rotatable placing plate is installed in the drying box, a first motor is fixedly installed on the outer wall of the drying box, and a second motor is fixedly installed on the outer wall of the drying box. The first motor is in transmission connection with the containing plate, the lower portion of the drying box is fixedly connected to a material guiding groove which is in a funnel shape on the whole, a guiding cylinder is fixedly connected to the bottom of the material guiding groove, screening holes are formed in the bottom of the inner wall of the guiding cylinder, and a rotatable supporting frame is installed on the inner wall of the guiding cylinder. According to the device, the drying box is arranged above the guide cylinder, the screening holes are formed in the outer wall of the guide cylinder, and the rotatable feeding auger is installed in the guide cylinder, so that the device can quickly transfer materials into the guide cylinder to be screened after completing drying of the materials, manual interference of transferring is not needed, and the drying efficiency is improved. And the materials are prevented from being polluted in the transferring process.

Provided is a use of a compound represented by general formula (I) in combination with doxorubicin in the preparation of an anti-cancer drug

The invention belongs to the technical field of chemical synthesis reaction, and particularly relates to double-cavity tetraimidazolium cyclophane as well as a preparation method and application thereof. 5-methoxy-2-benzimidazolinone is used as a raw material to prepare a compound A, the compound A is used as a raw material to prepare a compound B, the compound B and a compound C in the prior art are used to prepare a compound D, and the compound D is used as a raw material to prepare a compound E, namely the double-cavity tetraimidazolium cyclophane. The double-cavity tetraimidazolium cyclophane disclosed by the invention is substantially a catalyst for cycloaddition reaction of carbon dioxide (CO2) and epoxide, and the catalyst realizes synergistic adsorption and activation of CO2 molecules and epoxide by introducing a double-cavity structural design and combining imidazolium active sites in high-density distribution. Through the synergistic effect of the double cavities, the pre-organization capacity of a substrate and the regulation and control efficiency of a reaction microenvironment are remarkably enhanced, and meanwhile, the formation and conversion of an intermediate are accelerated through the confinement effect of the cavities.

The present disclosure relates to the technical field of cosmetics, in particular to a high-temperature-resistant color-changing composition for cosmetics and application thereof, the high-temperature-resistant color-changing composition comprises the following components with mass percentage: 5-10% of transaminic acid or a derivative thereof, 0.3-0.8% of a saccharide compound, 0.5-1.4% of creatine or a derivative thereof, 0.3-1.2% of an imidazolinone compound, 0.3-0.4% of a lactam carboxylate, 0-1% of a pH regulator, and the balance is water.

To provide a method for treating specimens including clinical samples preserved in a liquid-based cytodiagnosis preservative containing formaldehyde.SOLUTION: The method begins with a step of preparing a reaction mixture by mixing a specimen with a protease enzyme and 2-imidazolidone or other formaldehyde scavenger. After that, the reaction mixture is incubated at an elevated temperature for a period of time sufficient enough to reverse the chemical modification by formaldehyde to the nucleic acid which may be contained in the specimen. By this step, at least part of the chemical modification caused by reaction between formaldehyde and nucleic acid or protein is reversed. For example, chemical crosslinks may be broken. Next, there is a step for isolating the nucleic acid from the reaction mixture after the incubation step. In the final step, in vitro amplification reaction is carried out using the nucleic acid from the isolation step as a template.SELECTED DRAWING: None

The invention provides a method for detecting imidazolone compounds in animal-derived food, and relates to the technical field of analysis and detection. The QuEChERS method is combined for extraction, the acetic acid-acetonitrile solution serves as an extracting agent, the sodium citrate dihydrate, the disodium citrate sesquihydrate, the anhydrous magnesium sulfate and the sodium chloride serve as QuEChERS extracting salt, and the extraction rate of imazamox, imazapic, imazapic, imazalic acid and imazethapyr is high. The extracting solution is purified by using a PPR phospholipid-removing solid-phase extraction small column, and the extracting solution of a high-fat food sample is frozen, so that the matrix effect is greatly reduced. High performance liquid chromatography-tandem mass spectrometry is adopted for detection, and the sensitivity of the detection method is high. The detection method provided by the invention is simple to operate and low in pretreatment cost.

The invention provides an electrolyte of a high-performance electrolytic copper foil, the electrolytic copper foil and a preparation method and application of the electrolytic copper foil, and belongs to the technical field of electrolytic copper foils. The electrolyte of the high-performance electrolytic copper foil comprises copper ions, H2SO4, chloride ions, an additive A and an additive B, the additive A is nickel salt, cerium salt and sodium salt; and the additive B is prepared from polypropylene glycol, sodium dithiodipropane sulfonate, gelatin, 3-mercapto-1-sodium propane sulfonate, chitosan and 1, 3-dimethyl-2-imidazolinone. The electrolytic copper foil is high in tensile strength, high in ductility, low in warping degree and low in rough surface roughness.