25 results about "Phenylacetone" patented technology

The present application relates to the technical field of perovskite devices, and particularly relates to a packaging method of a perovskite device. The packaging method provided by the present application comprises the following steps: mixing methyl methacrylate, 2-methyl-2-acrylic acid-2-hydroxyethyl ester phosphate and 2-hydroxy-2-methyl-1-phenylpropanone to obtain a packaging slurry; coating the packaging slurry on the surface of the perovskite device, covering a glass plate, and performing light curing. The packaging method can improve the photoelectric current density of the device, thereby improving the efficiency of the device, and can significantly improve the outdoor stability of the device.

The embodiment of the invention discloses a polymer electrolyte for a magnesium battery and the magnesium battery. The polymer electrolyte consists of a eutectic solvent, a cross-linking agent and a photoinitiator, the eutectic solvent is any one of a Mg (TFSI) 2 / N-methylformamide system or a MgCl2 / 2-chlorine-N, N-dimethylacetamide system, and N-methylformamide or 2-chlorine-N, N-dimethylacetamide is a hydrogen bond donor in the eutectic solvent; the crosslinking agent is polyethylene glycol diacrylate, and the photoinitiator is 2, 2-dimethoxy-2-phenyl acetophenone. According to the polymer electrolyte provided by the invention, high ionic conductivity, excellent electrochemical stability and good magnesium ion reversible deposition and dissolution performance are realized, the cycling stability is enhanced, the structural stability is also considered, and the polymer electrolyte has excellent reversibility and application potential in a magnesium battery; and the cycling stability and the energy efficiency of the magnesium battery can be obviously improved.

This invention discloses a method for preparing and applying o-pyrazolylphenylacetone olefin derivatives. The method involves dispersing o-pyrazolylphenylpropenol compounds, aryl aldehyde compounds, and a catalyst in an organic solvent to react and obtain o-pyrazolylphenylacetone derivatives. The method for synthesizing o-pyrazolylphenylacetone derivatives of this invention has advantages such as inexpensive raw materials, simplicity and efficiency, mild reaction conditions, high atom economy, easy product purification, and green economy. The obtained products can be directly applied as potential drugs in the pharmaceutical field, showing broad application prospects.

A method of cell culture comprising providing cells in a cell culture medium to start a cell culture process, and, maintaining at least one metabolite selected from 3-(4-hydroxyphenyl)lactate, 4-hydroxyphenylpyruvate, phenyllactate, indolelactate, indolecarboxylic acid, homocysteine, 2-hydroxybutyric acid, isovalerate and formate below a concentration C1 in the cell culture medium, wherein C1 is 3 mM and / or (ii) maintaining at least one amino acid selected from phenylalanine, tyrosine, tryptophan, methionine, leucine, serine, threonine and glycine below a concentration C2 in the cell culture medium, wherein C2 is 2 mM.

The invention provides an ultrathin composite diaphragm for a battery and a preparation method thereof, and the preparation method of the ultrathin composite diaphragm for the battery comprises the following steps: uniformly mixing polyamide acid, a template agent, modified MXene and a solvent to obtain a spinning solution; carrying out electrostatic spinning on the spinning solution, carrying out imidization reaction, and removing the template agent to obtain a porous composite fiber membrane; 2-hydroxy-2-methyl-1-phenylacetone is loaded on the obtained porous composite fiber membrane, then the porous composite fiber membrane is soaked in a monomer-containing mixed solution, and the ultrathin composite diaphragm for the battery is obtained through a reaction; wherein the monomer-containing mixed solution is prepared from N-isopropylacrylamide, 2-allyl furan, bismaleimide and N, N '-methylenebisacrylamide, and the monomer-containing mixed solution is prepared from N-isopropylacrylamide, 2-allyl furan, bismaleimide and N, N'-methylenebisacrylamide. According to the preparation method of the ultrathin composite diaphragm for the battery, the obtained diaphragm is good in mechanical property and high in safety.

The application discloses a waterproof UV curing paint and a preparation method thereof, wherein trimethylolpropane triacrylate is used as an active diluent, 2-hydroxy-2-methyl-1-phenylpropanone is used as a photoinitiator, polyurethane acrylate and modified fillers are polymerized in a UV curing process of the paint, and a high-crosslinking waterproof UV curing coating is prepared. A perfluorocarbon chain structure and a hydrogen bond network are introduced into a polyurethane acrylate molecular chain, a molecular-level smooth super-hydrophobic layer is formed on the surface of the coating, and the molecular-level smooth super-hydrophobic layer can effectively block the penetration of water molecules. The modified fillers with microcrystalline wax as a core and silicon dioxide as a shell are added, the wear resistance and scratch resistance of the coating can be significantly improved, and meanwhile, the microcrystalline wax and the coating with low surface energy cooperatively construct a super-hydrophobic structure, so that the waterproof performance of the UV curing paint is improved.

The application discloses a preparation method of hydrogenated aldehyde ketone resin without free formaldehyde, belongs to the technical field of aldehyde ketone resin synthesis, and aims to solve the technical problems of high free formaldehyde content, and further improved hydroxyl value stability and transparency in the hydrogenated aldehyde ketone resin in the prior art, and specifically comprises the following steps: under the protection of an inert gas atmosphere, phenylacetone, polyformaldehyde and a solvent are mixed and stirred, the reaction system is heated to 60-75 DEG C, and an inorganic alkali is added into the reaction system. The application is characterized in that the basic aldehyde ketone resin solution prepared by condensation of polyformaldehyde and phenylacetone in a water-free environment with a nickel catalyst is catalytically hydrogenated, not only the hydrogenated aldehyde ketone resin with stable hydroxyl value and extremely low colority is effectively obtained, but also the free formaldehyde content in the hydrogenated aldehyde ketone resin is effectively reduced, and the wide applicability of the hydrogenated aldehyde ketone resin in high-end coatings, adhesives and electronic materials is improved.

This invention belongs to the interdisciplinary field of natural product medicinal chemistry and oral medicine, specifically disclosing the application of uvangoletin in the preparation of anti-periodontalgia drugs. Uvangoletin is 1-(2,4-dihydroxy-6-methoxyphenyl)-3-phenyl-1-propanone, with the molecular formula C. 16 H 16 O4, experiments confirmed that its MIC for Porphyromonas gingivalis was 16 μmol / L, MIC 50 The concentration is 10.28 μmol / L, the MIC for Fusobacterium nucleatum is 16 μmol / L and the MIC50 is 6.86 μmol / L. It has no inhibitory activity against Streptococcus mutans and has selective anti-periodontal pathogenic bacteria characteristics. It can be made into oral preparations such as gels, mouthwashes or toothpaste.

The invention relates to terpenyl acetophenone compounds as well as a preparation method and application thereof, and belongs to the field of medicines. The terpenyl acetophenone compound is prepared by taking ferula ferulae as a raw material for the first time, the colon cancer resisting activity of the terpenyl acetophenone compound is systematically evaluated, and the application of the terpenyl acetophenone compound in development of chemical prevention and treatment drugs related to colon cancer is elaborated. According to the invention, in-vitro HCT-116 and HT-29 cells are used as models to carry out an anti-colon cancer activity test, and the inhibition activity of the prepared terpenyl acetophenone compounds 1-8 on colon cancer cells is evaluated. Results show that the novel terpenyl acetophenone compounds have remarkable anti-colon cancer activity and can be used for developing anti-colon cancer chemopreventive agents or therapeutic drugs.

This invention relates to carbon-13 labeled psychoactive substances, the chemical structural formula of which is: . This invention also provides a method for preparing the aforementioned carbon-13 labeled psychoactive substances, comprising the following steps: (1) 13 C-C3-alanine reacts with Boc2O and a methylating agent to form N-methyl-N-Boc- 13 (2) The product obtained in step (1) is reacted with N,O-dimethylhydroxylamine to obtain an intermediate; (3) The intermediate obtained in step (2) is reacted with a phenyl nucleophile to obtain 13 C-C3-2-N-Boc-methylamino-1-phenyl-1-propanone; (4) The product obtained in step (3) is subjected to a Boc protecting group removal reaction to obtain the carbon 13-labeled psychoactive substance. The present invention also provides the use of the carbon 13-labeled psychoactive substance in detecting the content of methcathinone in biological or environmental samples.

The preparation method comprises the following steps: mixing N-substituted quinoxaline ketone as shown in a formula (II), an acetophenone compound as shown in a formula (III), DDQ, a solvent and a catalyst, reacting at 80 DEG C for 12 hours, and performing post-treatment on reaction liquid to obtain the 3-alkenylated quinoxaline ketone compound as shown in a formula (I), the method has the advantages of high atom economy, simplicity in operation, less pollution and the like; .

The application discloses a kind of carbon dioxide corrosion inhibitor based on mannich base and its preparation method and application, belong to petroleum chemical industry metal material protection technical field.Main agent mannich base is with 3-amino crotonitrile, 3-hydrazine quinoline, phenylacetone, cinnamaldehyde as main, it is prepared by condensation, mannich two-step reaction, its structure is as shown in formula A.The inhibitor includes by mass percentage:mannich base A 30~40%, alkylamine 8~16%, potassium iodide 0.3~0.6%, surfactant 10~20%, organic solvent 30~60%.Mannich base A synthesis is simple, post-treatment is convenient, molecule contains quinoline, pyrazole, carbonyl, double bond, phenyl functional group simultaneously, can be well adsorbed on carbon steel surface and form dense protective film to prevent the invasion of corrosive medium.Add alkylamine, potassium iodide, surfactant, organic solvent, water solubility increases after compounding, corrosion inhibition effect is enhanced.The corrosion inhibitor has the characteristics such as small amount, high efficiency, wide application range, and has wide application prospect in oil and gas production.

This invention discloses a dihydrochalcone-based oral spray and its preparation method, belonging to the field of oral pharmaceutical formulations. The spray uses 1-(2,4-dihydroxy-6-methoxyphenyl)-3-phenyl-1-propanone and 2',6'-dihydroxy-3',4'-dimethoxydihydrochalcone, isolated and purified from *Sarcandra glabra*, as active ingredients. It is solubilized using a medium-chain triglyceride / polyoxyethylene hydrogenated castor oil / propylene glycol self-microemulsification delivery system, and hydroxypropyl methylcellulose is introduced to enhance mucosal adhesion. This spray can spontaneously form nanoemulsion droplets in oral saliva, selectively inhibiting *Porphyromonas gingivalis* and *Fusobacterium nucleatum*, and is suitable for adjunctive treatment of gingivitis and periodontitis.

The application provides a preparation method of acetophenone, acetophenone prepared by the method and application. The steps comprise: reacting ethylbenzene and an oxygen-containing gas under the action of a catalyst and a cocatalyst, and then performing rectification to obtain acetophenone; wherein the catalyst is a metal acid salt, and the cocatalyst is an alkyl siloxane. The method can effectively reduce the types of impurities, improve the selectivity of acetophenone, and through continuous rectification separation, the content of the obtained acetophenone is greater than or equal to 99.9%, the content of 1-phenyl ethanol is 0-100 ppm, and the content of phenyl acetaldehyde is 0-100 ppm. In the ethylbenzene oxidation reaction, through the research on the reaction mechanism, the acetophenone has the characteristics of high yield and few types of impurities, and high-purity acetophenone is obtained through rectification separation.

The invention discloses a preparation method of hydrogenated aldehyde ketone resin without free formaldehyde, belongs to the technical field of aldehyde ketone resin synthesis, and aims at solving the technical problems that the content of free formaldehyde in hydrogenated aldehyde ketone resin in the prior art is high, and the hydroxyl value stability and transparency need to be further improved. The method specifically comprises the following steps: under the protection of an inert gas atmosphere, mixing and stirring acetophenone, paraformaldehyde and a solvent, heating a reaction system to 60-75 DEG C, and adding inorganic alkali into the reaction system; according to the invention, the nickel catalyst is used for catalytic hydrogenation of the alkaline aldehyde ketone resin solution prepared by condensation of paraformaldehyde and acetophenone in an anhydrous environment, such that the hydrogenated aldehyde ketone resin with stable hydroxyl value and extremely low chroma is effectively obtained, and the content of free formaldehyde in the hydrogenated aldehyde ketone resin is effectively reduced. The wide applicability of the hydrogenated aldehyde ketone resin in high-end coatings, adhesives and electronic materials is improved.

The application discloses a kind of acetophenone derivatives and preparation method thereof, belong to organic synthesis field.The acetophenone derivative is 1-[3-methoxy-4-(1-ethyl pentyloxy) phenyl] ethanone, its preparation method includes: anhydrous tetrahydrofuran, 3-heptanol, 4-hydroxy-3-methoxy acetophenone and triphenyl phosphine are mixed, then cooling to 0~10 ℃ and keep in this temperature range drop to it azobisdimethyl valerate, after drop completion room temperature reaction 1~24 hours, again after processing is obtained.The application uses the product that can be easily purchased in market as starting material, and uses relatively safe solvent to carry out reaction, obtains higher reaction yield and high product purity, process flow operation is simple and has no harsh reaction condition, can overcome amplification effect, still maintains higher yield and high purity in kg level production, so as to be more suitable for industrialized production application.

This invention provides a method for producing the photoinitiator UV-185, using isobutyric acid and tert-butylbenzoic acid as raw materials, in a Mn... 2+ In the presence of salt and K₂CO₃, a condensation reaction occurs at a temperature of 170℃-310℃, generating the intermediate 2-methyl-1-[4-(tert-butyl)phenyl]-1-propanone in one step. Then, 2-methyl-1-[4-(tert-butyl)phenyl]-1-propanone is chlorinated and subjected to alkaline hydrolysis to prepare (2-hydroxy-2-methyl-1-[4-(tert-butyl)phenyl]-1-propanone) (i.e., photoinitiator UV-185). The method provided by this invention synthesizes 2-methyl-1-[4-(tert-butyl)phenyl]-1-propanone in one step. Compared with the Friedel-Crafts reaction process, it reduces the use of hazardous chemicals and the generation of waste, making it an environmentally friendly production process. Compared with existing technologies, by mixing potassium carbonate into the catalyst, experiments show that the reaction temperature can be reduced to 170℃-310℃, and the optimal reaction temperature can be reduced to 220℃-260℃, a reduction of 30℃-50℃, thus helping to reduce energy consumption.

The invention relates to the technical field of direct-current submarine cables, and particularly discloses a direct-current composite submarine cable and a preparation method thereof. According to the submarine cable, the biphenyl-acetophenone epoxy oligomer is added into the low-density polyethylene to form the insulating layer of the submarine cable, the modified magnesium hydroxide and the modified aluminum hypophosphite are used as flame retardants of the inner sheath layer, and the modified polyolefin and the fluorinated nano silicon dioxide are added into the outer sheath layer. The prepared direct-current composite submarine cable has good insulativity, flame retardance and hydrolysis and aging resistance.

The application discloses a preparation method of a heavy metal sewage treatment agent and relates to the technical field of sewage treatment. In the preparation of the heavy metal sewage treatment agent, zinc modified Fe3O4 microspheres, hydrochloric acid dopamine and polyethylene imine are reacted to obtain crosslinked PDA / PEI-Zn / Fe3O4; zirconium tetrachloride and p-aldehyde benzene acid are reacted to obtain a zirconium metal cluster; the crosslinked PDA / PEI-Zn / Fe3O4, the zirconium metal cluster and 1,4-diamino-2,5-divinyl benzene are step-by-step reacted to obtain COF-crosslinked PDA / PEI-Zn / Fe3O4; and the COF-crosslinked PDA / PEI-Zn / Fe3O4 is ultraviolet irradiated in a grafting solution composed of 1,2-ethanedithiol, 2,2-dimethoxy-2-phenyl phenylacetone and tetrahydrofuran to obtain the heavy metal sewage treatment agent. The heavy metal sewage treatment agent prepared by the application has excellent adsorption performance and stability, is convenient to recover and can be reused.

The application provides a chemical synthesis method of flavonoids in eaglewood, and relates to the technical field of chemical synthesis. The method is to use 4-benzyloxy cinnamic acid formula (II) and 2'-hydroxy-4',5'-dimethoxy phenylacetone formula (III) as starting materials, and to obtain the formula (I) compound through esterification condensation, rearrangement and ring closure deprotection. The application provides the chemical total synthesis method of the compound, and compared with the plant extraction method, the method has obvious industrialization advantages, such as less reaction steps, good product selectivity, high yield and suitability for industrial production.

The application discloses a preparation for influencing the tropotaxis behavior of leafhoppers and application of the preparation in leafhopper attraction or avoidance, and belongs to the technical field of pest control. The preparation for influencing the tropotaxis behavior of leafhoppers has effective components containing at least one of phenylacetone, pinene, linalool, ocimene, linalool oxide, alpha-pinene, sabinene, eucalyptol, heptadecane and p-cymene. The combined and screened attractants have a significant attraction effect on leafhoppers, and after the attractants are prepared into the preparation, the preparation can be applied to leafhopper attraction in a field, and the effect is remarkable.

The present invention provides a method for manufacturing a matte coating film that can be applied to a variety of materials and can provide a uniform and excellent matte finish. [Solution] A method for producing a matte coating film is provided, comprising the steps of (I) forming a coating film of an active energy ray curable composition on a substrate, (II) irradiating the coating film with ultraviolet light, and (III) irradiating the coating film with ultraviolet light using a low-pressure mercury lamp, wherein the active energy ray curable composition comprises a compound having a (meth)acryloyl group, a photopolymerization initiator, and fine particles, wherein the photopolymerization initiator comprises a 2-hydroxy-2-methyl-1-phenylpropanone structure or a benzophenone structure and includes a photopolymerization initiator (A) having an absorption peak at a wavelength of 270 nm or less, and the particle size of the fine particles is 1 nm or more and less than 10 μm.

The invention discloses a tebuconazole nano dispersion emulsion in water and a preparation method thereof, and relates to the technical field of pesticide preparation processing. The prepared tebuconazole nano dispersion emulsion in water is prepared from the following raw materials in parts by mass: 25 to 29 parts of tebuconazole active compound, 43 to 47 parts of cosolvent, 20 to 25 parts of emulsifier, 0 to 2 parts of stabilizer and 3 parts of solvent water, wherein the cosolvent is one or a combination of more of a rosin-based vegetable oil modified solvent ND-45, dipropylene glycol monomethyl ether, diethylene glycol monoethyl ether, glycerol formal, a biodegradable solvent WPD, benzyl alcohol, acetophenone and N-octyl pyrrolidone; the emulsifier is one or a combination of more of 3225, 3225 to TB01, 3225 to TB03, 3225 to 50 parts of 3225 and 322 to 60 parts of 322; the water emulsion dispersing agent prepared by the invention is simple to process and operate and friendly in component, and has good application prospect and practical significance.

The invention discloses a preparation method and application of a cross-linked gel polymer electrolyte with high ionic conductivity and high voltage stability at room temperature. The electrolyte is formed in the mode that alkali metal salt, a polymer and a plasticizer are induced to form free radicals under the condition that a light inducer 2, 2-dimethoxy-phenyl acetophenone is irradiated by ultraviolet light, mercaptan-alkene click reaction cross-linking is initiated, the alkali metal salt is sodium bis (fluorosulfonyl) imide or lithium bis (fluorosulfonyl) imide, and the polymer is a polymer or a plasticizer. The plasticizer is tetraethylene glycol dimethyl ether which is used as a solvation carrier and a structural plasticizer. And the room-temperature ionic conductivity can reach 1.2 mS cm, the activation energy can be reduced to 0.109 eV, and the electrochemical stability interface voltage is greater than or equal to 5.3 V, that is to say, high ionic conductivity, high-voltage stability and mechanical ductility are considered at the same time, and the method is suitable for a high-energy-density solid-state battery.

The invention belongs to the technical field of pharmaceutical chemicals, and particularly relates to a preparation method of a low-water-content celecoxib dione intermediate. The method comprises the following steps: under the action of sodium methoxide, ethyl trifluoroacetate and p-methylacetophenone react in methanol, the temperature is controlled to be 20-30 DEG C after the reaction is finished, purified water is added into a system, an acid aqueous solution is dropwise added to adjust the pH value of feed liquid to be 2-5, crystallization is performed, and the celecoxib dione intermediate is obtained. The celecoxib dione intermediate obtained by the invention has larger crystal particles and better dispersity, is easy to filter, and reduces the moisture content of a wet product, so that the time required for drying is shortened, and the cost is saved for actual production.