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16 results about "Anthraquinone" patented technology
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Anthraquinone, also called anthracenedione or dioxoanthracene, is an aromatic organic compound with formula C₁₄H₈O₂. Isomers include various quinone derivatives. The term anthraquinone, however refers to the isomer, 9,10-anthraquinone (IUPAC: 9,10-dioxoanthracene) wherein the keto groups are located on the central ring. It is a building block of many dyes and is used in bleaching pulp for papermaking. It is a yellow, highly crystalline solid, poorly soluble in water but soluble in hot organic solvents. It is almost completely insoluble in ethanol near room temperature but 2.25 g will dissolve in 100 g of boiling ethanol.
Anthracene methylthiosalicylic acid for photosensitive resin composition and application of anthracene methylthiosalicylic acid
ActiveCN121135615AOrganic chemistryPhotosensitive materials for photomechanical apparatusAnthracenePhotosens
The invention provides anthracene methylthiosalicylic acid for a photosensitive resin composition, and relates to the field of photopolymerization. The invention also comprises a photosensitive resin composition containing the anthracene methylthio-salicylic acid, a photosensitive dry film containing the anthracene methylthio-salicylic acid, and applications of the photosensitive resin composition and the photosensitive dry film. The anthracene methyl thiosalicylic acid has photosensitivity and can be used as a photosensitizer in the photosensitive resin composition; the migration characteristic is low; the photosensitive resin composition has good solubility in conventional monomers, and the degree of freedom of formula design of the photosensitive resin composition is greatly improved; the developing agent also has very good solubility in alkali liquor, so that developing garbage can be greatly reduced, and the product yield is improved; the adhesive force of the photosensitive resin composition on various metal surfaces can be improved; the method can be widely applied to the photo-curing fields of dry films, paints, coatings, printing ink, forming materials and the like.
Owner:JIANGXI WUJIANG HIGH TECH MATERIAL CO LTD
Micromolecular chain extender, preparation method thereof and red polyurethane adhesive
PendingCN121405578AOrganic chemistryOrganic compound preparationPolymer sciencePolyurethane adhesive
The invention relates to the technical field of polyurethane adhesives, in particular to the field of IPC C09J175, and more particularly relates to a small molecule chain extender, a preparation method thereof and red polyurethane adhesive. The small molecule chain extender is prepared from the following raw materials: dichloroanthraquinone and ethanolamine, and the red polyurethane adhesive is prepared from the small molecule chain extender, polyol, isocyanate and a solvent. A red colored group is introduced into a polyurethane molecular chain, and the colored group is used as a part of a chain extender, so that the color migration resistance and the transparency are improved at the same time.
Owner:江西三越高新材料有限公司
Method and application of C60-modified black phosphorus-modified aluminum-supported palladium-based catalyst
ActiveCN117258812BPeroxides/peroxyhydrates/peroxyacids/superoxides/ozonidesCatalyst activation/preparationPtru catalystPhysical chemistry
Owner:HUBEI XINGFA CHEM GRP CO LTD +1
COF-based hydrogel based on long-chain modified aldehyde group monomer as well as preparation method and application of COF-based hydrogel
The invention provides COF-based hydrogel based on a long-chain modified aldehyde group monomer as well as a preparation method and application of the COF-based hydrogel, and relates to the technical field of hydrogel for water treatment. The preparation method comprises the following steps: synthesizing a required TPAD-NHBoc amido monomer by using medicines such as 1, 4, 5, 8-tetrachloroanthraquinone, N-Boc-1, 4-phenylenediamine and the like, sequentially adding the TPAD-NHBoc amido monomer, a Dha aldehyde monomer modified by different long chains, dioxane and trifluoroacetic acid into a glass tube according to a certain proportion, carrying out ultrasonic treatment and stirring to fully dissolve, and finally putting the mixture into a reaction kettle to react, thereby obtaining the TPAD-NHBoc amido monomer. After the reaction is finished and cooling, carefully taking out the blocky gel from the glass tube, respectively immersing the blocky gel into dioxane, DMF, acetone, methanol and deionized water, and repeatedly replacing the solvent to wash unreacted monomers and impurities to obtain the hydrogel. The COF-based hydrogel based on the long-chain modified aldehyde group monomer has excellent solar photo-thermal water evaporation performance.
Owner:HAINAN UNIV
Method for artificially cultivating camptothecin-containing anthracnose fungi using bamboo shoot shell waste
This invention belongs to the field of microbial technology, specifically disclosing a method for artificially cultivating *Anthraquinone longipes* containing camptothecin using bamboo shoot shell waste. The method involves inoculating *Anthraquinone longipes* into SKG medium for cultivation. The SKG medium consists of bamboo shoot shell powder with a solid-liquid ratio of 20:20 and MS medium with a concentration of 0.5 g / L. This invention is the first to achieve the artificial cultivation of *Anthraquinone longipes* fruiting bodies using waste bamboo shoot shells. Furthermore, the secondary metabolites of the cultivated fruiting bodies were evaluated, revealing that the fruiting bodies can produce camptothecin, thus enhancing the economic value of *Anthraquinone longipes* and providing a new pathway for the industrial production of camptothecin.
Owner:YUNNAN ACAD OF FORESTRY
Refrigeration cycle device and compressor
A refrigeration cycle device comprises a refrigerant, a compressor that compresses the refrigerant, and a refrigerating machine oil that lubricates a sliding part of the compressor. The refrigerant includes trifluoroiodomethane. The refrigerating machine oil includes a base oil and a quinone additive. The quinone additive is at least one selected from the group consisting of 1,4-benzoquinone, 1,2-benzoquinone, 2-methyl-1,4-benzoquinone, 2-phenyl-1,4-benzoquinone, 2-tert-butyl-1,4-benzoquinone, 1,4-naphthoquinone, 1,2-naphthoquinone, 2,6-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.
Owner:MITSUBISHI ELECTRIC CORP
Anthraquinone thiosalicylic acid for a photosensitive resin composition and use thereof
ActiveCN121135615BOrganic chemistryPhotosensitive materials for photomechanical apparatusAnthracenePhotosens
The present application provides a kind of anthracene methylthiosalicylic acid for photosensitive resin composition, it is related to the field of photopolymerization.The present application also includes photosensitive resin composition containing the anthracene methylthiosalicylic acid, photosensitive dry film containing the anthracene methylthiosalicylic acid, and its application.The anthracene methylthiosalicylic acid of the present application has photosensitivity, can be used as photosensitizer in photosensitive resin composition;With low migration characteristics;It has very good solubility in conventional monomer, greatly improves the degree of freedom of formula design of photosensitive resin composition;It also has very good solubility in lye, can greatly reduce the development garbage, improve product yield;Photosensitive resin composition can improve the adhesion on a variety of metal surfaces;It can be widely used in dry film, paint, coating, ink and molding material and other photocuring field.
Owner:JIANGXI WUJIANG HIGH TECH MATERIAL CO LTD
Preparation process of 1-chloroanthraquinone
PendingCN121021282AOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsChlorantranilipoleWater chlorination
The invention relates to the technical field of preparation of chemical raw materials, in particular to a preparation process of 1-chloroanthraquinone, which comprises the following steps: a sulfonation section, a first filter pressing section, a salt forming section, a second filter pressing section, a chlorination section and a third filter pressing section. Through a strategy of firstly obtaining a sulfonic acid intermediate and then performing chlorination conversion, the problem of separation of an isomer mixture possibly generated by direct chlorination is avoided from a reaction path. Meanwhile, the route avoids the use of unstable intermediates such as diazonium salt and the like, simplifies the operation process, and is suitable for large-scale industrial production.
Owner:INNER MONGOLIA YINGLAI NEW MATERIALS CO LTD
A yellow organic dye, its preparation and use in the production of yellow spandex fibers
PendingCN122103923AOrganic compound preparationTextile/flexible product manufactureFiberPolymer science
The application discloses a yellow organic dye, a preparation method thereof and application of the yellow organic dye in preparation of yellow spandex fibers, and belongs to the technical field of dyes and fiber preparation, and comprises the following steps: 1,5-dichloroanthraquinone, p-mercaptophenethyl alcohol, a carbonate and a dye solvent are added into a reaction together, hydrochloric acid is added to precipitate a product, the product is recrystallized with acetone, and the yellow organic dye is obtained. The yellow organic dye is dissolved in a solvent A, polyols and isocyanate are added, a catalyst is added or not, a reaction retarder is added or not, a chain extender is added or not, and a blocking agent is added or not, then the reaction is carried out, defoaming is carried out, dry spinning is carried out, and the yellow spandex fibers are obtained. In the application, the dye is connected to the spandex main chain through a covalent bond, the spandex fibers have a color, and the problems of difficult dyeing of the spandex fibers in the later stage, much wastewater and the like can be solved; the dye is combined with the spandex fibers through a chemical bond and is fixed in the high molecular chain, and has excellent dry and wet rubbing fastness and excellent migration resistance.
Owner:浙江材华科技有限公司
Use of plumbagin I in the preparation of drugs for preventing and treating type 2 diabetes
This invention relates to the application of anthraquinone I in the preparation of drugs for the prevention and treatment of type 2 diabetes. The method involves pulverizing the whole herb of *Patrinia scabiosifolia*, extracting it by reflux with ethanol, and concentrating under reduced pressure to obtain an extract. The extract is then sequentially extracted with equal volumes of petroleum ether, dichloromethane, and n-butanol. The dichloromethane layer is separated by silica gel column chromatography to obtain 10 fractions (Fr.1 to Fr.10). Fr.5 is further separated by ODS column chromatography, eluting with a methanol-water gradient to obtain 5 fractions (Fr.5-1 to Fr.5-5). Fr.5-4 is separated by Sephadex LH-20 column chromatography, and then purified by semi-preparative high-performance liquid chromatography to obtain anthraquinone I. The extraction method of anthraquinone I in this invention is simple and suitable for large-scale production. Anthraquinone I can inhibit α-glucosidase and can be used in the preparation of hypoglycemic drugs.
Owner:THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
Dihydroxy anthraquinone-based copolyester and application of corrosion-resistant and wear-resistant coating
PendingCN121406217AAnti-corrosive paintsEpoxy resin coatingsMechanical equipmentDihydroxyanthraquinone
The invention discloses a preparation method and application of novel copolyester, and belongs to the field of polymer composite coatings. The copolyester synthesized by the invention has good corrosion resistance, can be used for preparing a corrosion-resistant and wear-resistant polymer composite coating, can be used for protecting a ship body and preventing the corrosion of saline water and marine organisms, and can also be used for protecting offshore wind power equipment and other equipment and preventing the corrosion caused by seawater and tides; and the paint can also be used for corrosion prevention of mechanical equipment and parts in a highly corrosive working environment.
Owner:WUHAN UNIV OF SCI & TECH
Synthesis method of (9R, 10S)-2-chloro-9, 10-bis (4-methoxyphenyl)-9, 10-dihydroanthracene-9, 10-diol
PendingCN121824279APhysical/chemical process catalystsOrganic compound preparationGrignard reagentCerous chloride
The invention relates to a synthesis method of (9R, 10S)-2-chloro-9, 10-bis (4-methoxyphenyl)-9, 10-dihydroanthracene-9, 10-diol, and particularly relates to a synthesis method of (9R, 10S)-2-chloro-9, 10-bis (4-methoxyphenyl)-9, 10-dihydroanthracene-9 The synthesis method comprises the following steps: by taking tetrahydrofuran as a solvent, adding cerium trichloride as a catalyst and an exchange system atmosphere as an inert atmosphere, and regulating and controlling a temperature value to activate cerium trichloride so as to obtain cerium trichloride dispersion liquid; under the condition of 10-20 DEG C, adding a Grignard reagent into the cerium trichloride dispersion liquid to be complexed with cerium trichloride to obtain a mixed solution; the Grignard reagent is tetrahydrofuran dispersion liquid of p-methoxyphenyl magnesium bromide; the preparation method comprises the following steps: adding tetrahydrofuran dispersion liquid of 2-chloroanthraquinone into a mixed solution under the condition of 10-20 DEG C, carrying out a reaction, and after the reaction is finished, carrying out quenching and post-treatment to remove impurities, so as to obtain (9R, 10S)-2-chloro-9, 10-bis (4-methoxyphenyl)-9, 10-dihydroanthracene-9, 10-diol, namely (9R, 10S)-2-chloro-9, 10-bis (4-methoxyphenyl)-9, 10-dihydroanthracene-9, 10-diol. According to the synthesis method, raw materials are easy to obtain, and the yield is high and can reach 55% or above.
Owner:FUYANG XINYIHUA PHARM TECH CO LTD
Process for producing solvent blue 104 by solvent method
The invention belongs to the technical field of chemical dye production, and particularly discloses a process for producing solvent blue 104 by a solvent method, which comprises the following steps: adding N-methyl pyrrolidone as a solvent into a condensation reaction kettle, sequentially adding p-tritoluidine, 1, 4-dihydroxy anthraquinone, a 1, 4-dihydroxy anthraquinone leuco body, boric acid and salicylic acid, closing the kettle, heating, keeping the temperature, and cooling to room temperature to obtain the solvent blue 104. And transferring to an oxidation kettle after a side end point, adding potassium hydroxide in batches, introducing air for reaction, cooling, filtering, washing and drying to obtain a finished product, collecting, filtering and washing liquid, and recovering the N-methyl pyrrolidone solvent for reuse. According to the method, N-methyl pyrrolidone used in the production process of the solvent blue 104 is recycled, so that waste of production resources is avoided, pollutants generated by a solvent in wastewater are reduced, and the production cost is reduced.
Owner:甘肃金缘泰新材料有限公司
Pharmaceutical applications of 1,8-diacetyloxy anthraquinone and pharmaceutical compositions
PendingCN122097333AOrganic active ingredientsNervous disorderPharmaceutical medicineNeuro-degenerative disease
The application relates to the field of biological medicine, in particular to pharmaceutical application and a pharmaceutical composition of 1,8-diacetylrhefa. The application of 1.1,8-diacetylrhefa in the preparation of a drug for treating Alzheimer's disease mediated by mitochondrial autophagy; and a pharmaceutical composition, which is composed of a therapeutically effective amount of 1,8-diacetylrhefa and a pharmaceutically acceptable carrier. 1,8-diacetylrhefa can specifically activate the PINK1 / Parkin signal pathway, thereby promoting the removal of damaged mitochondria and restoring the organelle homeostasis in neurons. Experimental results show that in cell and animal models, it can effectively reduce the beta-amyloid level and improve the cognitive dysfunction of model animals, such as increasing the spontaneous alternation rate of Y maze, prolonging the passive avoidance test latency, thereby providing a candidate treatment scheme with disease modification potential for neurodegenerative diseases.
Owner:CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE
PAM / COF composite material for treating dye wastewater and preparation method thereof
The application belongs to the technical field of wastewater treatment, and specifically relates to a PAM / COF composite material for treating dye wastewater and a preparation method thereof. First, p-toluenesulfonic acid monohydrate and triformylphloroglucin are dissolved in deionized water to obtain a mixed solution A; acrylamide, N,N-methylenebisacrylamide, polyvinylpyrrolidone, PEG-200 polyethylene glycol and Tween 20 are ultrasonically dispersed in deionized water to obtain an aqueous phase; benzene, n-heptane and cyclohexane are mixed according to a volume ratio of 1:1:2.5 to obtain an oil phase; the PAM / COF composite material is prepared by adopting an emulsion polymerization method, PAM powder is added into the mixed solution A, then diaminoanthraquinone is added, and after mixing, heating reaction is carried out, and then drying is carried out. The organic framework (COF) material and polyacrylamide (PAM) are prepared into the PAM / COF composite material, and the problems of low mechanical strength, poor dispersibility, easy agglomeration, low adsorption efficiency, poor regeneration performance, poor treatment effect on complex dye wastewater and the like of the COF material are overcome.
Owner:TARIM UNIV
A method for preparing CI reactive blue 49 color base by electrolysis
A method for electrolytically preparing a CI Reactive Blue 49 chromophore belongs to the fields of fine chemicals and dye preparation. This method uses electrochemical in-situ chlorination to prepare 1-amino-4-chloroanthraquinone-2-sulfonic acid, which is then condensed with 1,3,5-trimethyl-2,4-diaminobenzenesulfonic acid in an autoclave to obtain a blue base. This method avoids the use of stannous chloride or chemical reducing agents, significantly reducing environmental pollution. There are no hydrolysis or debromination byproducts, the reaction raw materials are completely converted, and the amount of wash water used is reduced. The blue base yield exceeds 90%.
Owner:DALIAN UNIV OF TECH