51 results about "Imidazolidinone" patented technology

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 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 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.

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 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.

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.

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 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 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.

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.

Solvent blends useful for the formulation and application of polyamide-imide resins are described. A solvent blend may include a primary solvent and a co-solvent, wherein the primary solvent is provided at a higher concentration than the co-solvent. The primary solvent may include one or more first materials, wherein the first materials include at least one of 1,3- Dimethyl-2-imidazolidinone, N-Cyclohexyl-2-pyrrolidone, or N,N'-Dimethyl propyleneurea. The co-solvent may include one or more second materials different than the one or more first materials, wherein the second materials include at least one of N,N-Diethylacetamide, N,NDimethylpropionamide, gamma-butyrolactone, N-butylpyrrolidinone, N-Methylmorpholine, 2,5,7,10-Tetraoxaundecane, 3-Methoxy-N,N-dimethyl propenamide, Anisole, Cyrene, 1,1,3,3- Tetramethylurea, Diethylene Glycol Diethyl Ether, 1,3-Dimethyl-2-imidazolidinone, NCyclohexyl- 2-pyrrolidone, or N,N'-Dimethyl propyleneurea.

This invention discloses a method for preparing imidazolidinone derivatives, belonging to the field of pharmaceutical synthesis technology. The method involves reacting isocyanate and polysubstituted propargylamine as raw materials in an organic solvent under rare-earth Lewis acid catalysis to obtain the target imidazolidinone derivative. This invention features a mild reaction, simple operation, improved atom economy and synthetic efficiency, and good functional group compatibility.

The invention relates to a method for breeding a rice blast-resistant and herbicide-resistant japonica glutinous rice variety by overcoming Pigm adverse effects. A glutinous rice variety which is widely popularized in production and has excellent comprehensive characters is selected as a receptor parent, a broad-spectrum rice blast-resistant gene Pigm and a herbicide-resistant gene ALS are screened under the assistance of molecular markers, and the rice blast resistance gene Pigm and the herbicide-resistant gene ALS are obtained through backcross, selfing, multiple cross and phenotype screening based on thousand seed weight. The thousand seed weight of the japonica glutinous rice material is 26.5 g or above, and the japonica glutinous rice material is polymerized with broad-spectrum rice blast-resistant and herbicide-resistant genes. The glutinous rice new strain bred by the method successfully integrates two key genes of broad-spectrum high rice blast resistance Pigm and imidazolone herbicide resistance ALS, and main agronomic characters such as thousand seed weight, maturing rate, plant and leaf morphology and the like are equivalent to or better than those of an excellent receptor parent.

A polyimide precursor composition contains a polyimide precursor and an organic solvent. The polyimide precursor has a structural unit into which a specific xanthene structure has been introduced. The imidization ratio of the polyimide precursor is 10 mol % or more and 100 mol % or less. The organic solvent may be one or more solvents selected from N-methyl-2-pyrrolidone, 1-butyl-2-pyrrolidone, 3-methoxy-N,N-dimethylpropanamide, 3-butoxy-N,N-dimethylpropanamide, N,N-dimethylpropionamide, N,N-diethylformamide and 1,3-dimethyl-2-imidazolidinone.

The application discloses a sulfur-doped activated carbon supported palladium metal catalyst and a preparation method and application thereof. The preparation method comprises the following steps: obtaining a sulfur-doped activated carbon carrier; loading a palladium metal precursor compound on the sulfur-doped activated carbon carrier through an impregnation method; and reducing by using a liquid phase reducing agent to obtain the sulfur-doped activated carbon supported palladium metal catalyst. The application provides application of the sulfur-doped activated carbon supported palladium metal catalyst in synthesis of 1,3-dimethyl-2-imidazolidinone by a hydrogenation method, which exhibits excellent activity and high selectivity under relatively mild conditions, shortens a reaction time, and has good catalytic stability.

The present disclosure relates to a composition effective for improving skin condition from the viewpoint of maintaining or improving quality of life (QOL) in both health and beauty. More specifically, the present disclosure relates to a composition containing 1-(2-hydroxyethyl)-2-imidazolinone or a derivative thereof and a picolinamide, which can be suitably used as a cosmetic or the like beauty composition effective for improving skin condition due to promotion of increase of epidermal stem cells, promotion of increase of keratinocytes.

A composite solvent for separating styrene from a hydrocarbon mixture, comprising 35-80 mass% of a main solvent and 20-65 mass% of a cosolvent, wherein the main solvent is sulfolane, and the cosolvent is 1,3-dimethyl-2-imidazolidinone and / or gamma-butyrolactone. The composite solvent can be used as an extractant to separate styrene from a hydrocarbon mixture by extractive distillation, which can effectively reduce the operating temperature of the extractive distillation column, reduce the polymerization of styrene, reduce energy consumption, and obtain high yield and purity of styrene.

The present invention relates to a compound of formula (I) wherein A, B, C, D and E are selected from the group consisting of ═CH— and —N═, R2 is selected from a hydrogen atom, a (C1-C4)alkyl group and a (C3-C6)cycloalkyl group, R1 represents a (C4-C6)alkyl group, a (C3-C8)cycloalkyl group, a bridged (C6-C10)cycloalkyl group, a fused phenyl group, a substituted phenyl group, a R′-L- group, wherein L is either a single bond or a (C1-C3)alkanediyl group, and R′ represents, a (C3-C8)heterocycloalkyl group, or a (C3-C8)heteroaryl group, or a R′-L- group wherein L is a (C1-C3)alkanediyl group, and R′ is a an optionally substituted phenyl group or any of its pharmaceutically acceptable salt. The present invention further relates to a composition comprising a compound of formula (I) and a process for manufacturing said compound as well as its synthesis intermediates. It also relates to said compound for use as a medicament, in particular in the treatment and / or prevention of cognitive deficits and neuroinflammation associated with Down syndrome, Alzheimer's disease, dementia and / or tauopathies; Parkinson's disease; CDKL5 Deficiency Disorder; Phelan-McDermid syndrome; autism; type 1 and type 2 diabetes; abnormal folate and methionine metabolism; tendinopathy and osteoarthritis; Duchenne muscular dystrophy; several cancers; neuroinflammation, anemia, infections and for regulating body temperature.

The invention belongs to the technical field of fine chemical engineering, and discloses a method for synthesizing 1, 3-dimethylimidazolinone through catalytic hydrogenation. Comprising the following steps: adding a formaldehyde aqueous solution with the mass fraction of 30-36%, a supported nickel catalyst and 2-imidazolinone into a high-pressure reaction kettle; after adding, sealing the kettle; after nitrogen replacement and leakage detection are qualified, introducing hydrogen, carrying out segmented heating reaction, and ending hydrogenation when raw material residues are less than 0.1%; and cooling, filtering, and carrying out reduced pressure rectification separation on the filtrate to obtain the product 1, 3-dimethylimidazolinone. The method has the advantages of high efficiency, low cost and environmental protection.

The invention discloses a high-durability metal preservative and a preparation method thereof, and belongs to the technical field of metal material protection. The invention provides a metal preservative taking two brand-new modified compounds as cores. Wherein the bis (gamma-mercaptopropyl) phosphonate modified polysiloxane is prepared by hydrolyzing gamma-mercaptopropyl trimethoxy silane and then reacting the hydrolyzed gamma-mercaptopropyl trimethoxy silane with triethyl phosphite, and the bis (gamma-mercaptopropyl) phosphonate modified polysiloxane contains sulfydryl and phosphonate groups; the 1, 3-bis (2-hydroxyethyl imidazolinone) modified perfluorinated epoxy resin is prepared by esterifying perfluorooctyl epoxy resin and imidazolinone and then introducing a fluorocarbon chain, and contains an imidazolinone ring and the fluorocarbon chain. The preservative further comprises deionized water, nano aluminum oxide, benzotriazole and the like. The preparation method comprises the following steps: refluxing two modified compounds, extracting, performing esterification polymerization and the like. The product realizes long-acting corrosion inhibition through chemical adsorption of sulfydryl, phosphonate groups and metal, chelating of imidazolinone rings and water blocking of fluorocarbon chains, and the protection performance of the metal in a harsh environment is remarkably improved.

The present invention relates to a compound of formula (I) wherein R1 represents a (C3-C8)cycloalkyl group, a bridged (C6-C10)cycloalkyl group, a fused phenyl group, a substituted phenyl group, a R′-L- group, wherein L is either a single bond or a (C1-C3)alkanediyl group, and R′ represents, a (C3-C8)heterocycloalkyl group, or a (C3-C8)heteroaryl u group, or a R″-L- group wherein L is a (C1-C3)alkanediyl group, and R″ is an optionally substituted phenyl group; R2 is selected from the group consisting of a hydrogen atom and a (C1-C3)alkyl group; R5 represents a hydrogen atom, a (C1-C4)alkyl group or a (C3-C6)cycloalkyl group or any of its pharmaceutically acceptable salt. The present invention further relates to a composition comprising a compound of formula (I) and a process for manufacturing said compound as well as its synthesis intermediates. It also relates to said compound for use as a medicament, in particular in the treatment and / or prevention of cognitive deficits and neuroinflammation associated with Down syndrome; Alzheimer's disease; dementia; tauopathies; Parkinson's disease; CDKL5 Deficiency Disorder; Phelan-McDermid syndrome; autism; type 1 and type 2 diabetes; abnormal folate and methionine metabolism; osteoarthritis and tendinopathy; Duchenne muscular dystrophy; cancers and leukemias; neuroinflammation, anemia, infections caused by unicellular parasites, viral infections and for regulating body temperature.

The invention provides a method for preparing clarithromycin through a single solvent system, and belongs to the technical field of erythromycin derivatives. The preparation method comprises the following steps: by taking erythromycin oxime as a raw material, carrying out etherification reaction and silanization reaction, adding 1, 3-dimethyl-2-imidazolone into the obtained product, carrying out ice-water bath, reducing the temperature to 0-5 DEG C, adding potassium hydroxide and methyl p-toluenesulfonate, carrying out first-stage heat-preservation reaction, heating to 14-20 DEG C, carrying out second-stage heat-preservation reaction, and after the reaction is ended, cooling to room temperature to obtain the erythromycin oxime. Adding methyl tert-butyl ether to extract the reaction product, standing for liquid separation, and recovering the obtained methyl tert-butyl ether layer under reduced pressure to obtain a methylated product; and reacting the methylated product to obtain a clarithromycin crude product, and recrystallizing to obtain a finished product clarithromycin. According to the method, the amount of alkali required by the reaction and the reaction temperature are remarkably reduced, generation of alkali damage impurities and dimethyl impurities in the reaction process is effectively controlled, the liquid phase content of the methylation intermediate is increased, and then the yield of clarithromycin is increased.

The present invention provides a polyimide precursor composition for producing an aromatic polyimide film in which light transmittance and / or heat resistance is improved. The polyimide precursor composition comprises: a polyimide precursor having a repeating unit represented by formula (I); a solvent A selected from among 1,3-dimethyl-2-imidazolidinone, 3-methoxy-N,N-dimethylpropanamide, 1-butyl-2-pyrrolidone, N,N-diphenylformamide, N,N-diethylbenzamide, benzanilide, and 1-phenyl-2-pyrrolidone; and a solvent B selected from among N,N-dimethylpropionamide, N,N-diethylformamide, N,N-diethylacetamide N,N-dimethylisobutylamide, N,N-diethylpropionamide, and tetramethyl urea. (In the formula, R1 and R2 are each a hydrogen atom or the like, and not less than 50 mol% of X1 is an aromatic group and / or not less than 50 mol% of Y1 is an aromatic group.)

The application discloses a hot melt adhesive debonding agent composition and a preparation method and application thereof. The hot melt adhesive debonding agent composition comprises the following components in parts by mass: a release agent 10-20 parts; a solubilizing agent 10-20 parts; an anti-sticking agent 0.2-1 part; and propylene glycol methyl ether 60-90 parts. The release agent is a mixture composed of hexamethylphosphorus triamide and 1,3-dimethyl-2-imidazolidinone. The mixture composed of hexamethylphosphorus triamide and 1,3-dimethyl-2-imidazolidinone is used as the release agent, so that the adhesion of the hot melt adhesive to the surface of a base material can be reduced after immersion at normal temperature (about 25 DEG C), and meanwhile, the aluminum alloy is not corroded.

The invention discloses a photosensitive resin composition. The photosensitive resin composition comprises a thermosensitive compound (b), a coloring agent (d) and a thermal cross-linking agent (e). Wherein the heat-sensitive compound (b) includes a compound containing at least two phenolic hydroxyl groups, the colorant (d) has a maximum absorption wavelength in any range of 490-800 nm, the absorbance at the maximum absorption wavelength is Absmax, the ratio of the absorbance Abs365 at 365 nm to Absmax is 0.1% or more and less than 40%, and the thermal crosslinking agent (e) includes 1, 3-bis (methoxymethyl) urea, 1, 3-bis (methoxymethyl)-4, 4, 6-trimethyl-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3-bis (methoxymethyl)-1, 3- The composition is one or a combination of more of 4, 5-diethoxy-1, 3-bis (hydroxymethyl)-2-imidazolidinone, 4, 5-dimethoxy-2-imidazolidinone, 4, 5-diethoxy-1, 3-bis (hydroxymethyl)-2-imidazolidinone and tetramethoxymethyl glycoluril. According to the photosensitive resin composition, the light transmittance within the wavelength range of 350-450 nm is not obviously reduced before exposure, so that the exposure sensitivity is prevented from being reduced. Meanwhile, after high-temperature curing, the cured film has excellent shading performance within the wavelength range of 350-780 nm through the change of the structure of the thermosensitive compound and the combination of the thermosensitive compound and two or more dyes or pigments, namely, the cured film has the optical density larger than or equal to 1.0.

The present invention relates to a method for manufacturing a polyurethane urea elastic yarn, characterized by using an imidazolidinone-based organic solvent as an organic solvent for polyurethane urea elastic yarn synthesis, and to a polyurethane urea elastic yarn manufactured thereby. According to the present invention, by using the imidazolidinone-based organic solvent, the reaction can be controlled, thereby obtaining a high-molecular-weight polyurethane urea polymer, and the obtained polyurethane urea solution exhibits excellent transparency, has good storage stability due to the absence of cloudiness even after long-term storage, is not subject to environmental regulations, and can secure stability even under high-temperature process conditions due to a high flash point thereof.