471 results about "Benzoquinone" patented technology

The invention discloses a multi-component covalent organic framework material for producing hydrogen peroxide based on photocatalysis and a preparation method and application thereof.The preparation method comprises the steps that a catalyst is added into turbid liquid containing an organic monomer, styrene, etherified boron trifluoride, 2, 3-dichloro-5, 6-dichloro-p-benzoquinone and an organic solvent, the mixture is mixed to be uniform, then the mixture is frozen and subjected to a reaction under vacuum after exhausting, and the multi-component covalent organic framework material is obtained; the multi-component covalent organic framework material for producing hydrogen peroxide based on photocatalysis is obtained. The material has the characteristics of adjustable structure height, abundant active centers, good porosity and the like, can be recycled for multiple times, and is a good catalyst for H2O2 production.

The invention provides a closed-loop reaction continuous production process for producing pigment violet 23, which comprises the following steps: a) adding an NMP (N-Methyl Pyrrolidone) solvent into a 100L reaction kettle, starting and stirring to 30 DEG C, adding a reduzate, and stirring for 30 minutes; b) adding sodium carbonate after the step a), and continuously stirring for 30 minutes; c) slowly adding chloranil, keeping the temperature at 35-40 DEG C, and continuously reacting until the reaction is finished; d) transferring the material in the step c) to closed-loop reaction equipment, and controlling the feeding sequence, mode and complete reaction of each component by utilizing a multi-component reaction optimization technology to ensure the reaction of reactants and reduce the generation e of side reaction to the maximum extent; the adding sequence, the reaction environment, the pressure and the flow speed of reactants are accurately controlled in the reaction process, and the high yield and the high purity of the pigment purple 23 are guaranteed; f) continuously carrying out catalytic oxidation reaction in the closed loop by using a static mixer and a small amount of catalyst combination to obtain a product; by optimizing the continuous production process of the closed-loop reaction of the pigment violet 23, adopting a closed-loop reaction system, and performing continuous production and flow marking monitoring and control, the method disclosed by the invention achieves obvious good effects in a plurality of aspects; the production efficiency is improved, the product quality is guaranteed, the production cost is reduced, the environmental friendliness is improved, and the process stability is enhanced.

The invention provides a preparation method of a Basa wood biomass porous carbon material and application of the Basa wood biomass porous carbon material in an aqueous zinc-benzoquinone battery, Basa wood is used as a raw material, under the action of a pore-forming agent and a nitrogen-containing organic matter, the Basa wood biomass porous carbon is obtained through a pre-carbonization and carbonization two-step process, acid pickling and water washing. The biomass porous carbon obtained by the invention has relatively high specific surface area and proper pore size distribution, has relatively good p-benzoquinone loading capacity, and is beneficial to transmission and storage of ions and electrochemical reaction. The aqueous zinc-benzoquinone battery prepared from the porous carbon material obtained by the invention has relatively high specific capacity and excellent cycle performance. The raw materials are cheap, easy to obtain and environmentally friendly, and the preparation process is simple, convenient to operate and extremely suitable for large-scale production and has huge potential application value.

The invention discloses an organic carbonyl compound electrode material, a preparation method and application of the organic carbonyl compound electrode material in a lithium ion battery, and the organic carbonyl compound electrode material is bipyridino [3 ', 2': 5, 6; the invention relates to an organic carbonyl compound electrode material, which is prepared from 2, 2 ', 3': 7, 8] quinoxaline [2, 3-i] bipyridino [3, 2-a: 2 ', 3'-c] phenazine-10, 21-diquinone and 1, 2, 4, 5-tetraamino p-benzoquinone and 1, 10-phenanthroline-5, 6-diketone through a dehydration condensation reaction. When the organic electrode material is used as a positive electrode material to be applied to a lithium ion battery, due to the fact that the organic electrode material contains a large conjugated system, the organic electrode material has good dissolution inertness in electrolyte and is beneficial to electron transmission, and therefore the cycling stability and the rate performance of the battery are improved. In addition, multiple active sites provide more redox active sites to coordinate with lithium ions, so that reversible lithium storage is realized, and relatively high capacity is shown.

The invention belongs to the field of medicines, and relates to a compound derived from Sinkiang lithospermum, a preparation method thereof and application of the compound in prevention and treatment of cardiovascular diseases. Specifically, the invention discloses a monoterpene benzoquinone derivative with a novel structure in Sinkiang lithospermum, a preparation method of the monoterpene benzoquinone derivative and application of the compound in preparation of anti-myocardial injury drugs. An in-vitro anti-myocardial cell injury activity experiment proves that the compound has a remarkable protection effect on isoprenaline (ISO)-induced H9C2 cell (rat embryo myocardial cell) injury and hypoxia-reoxygenation-induced H9C2 myocardial cell injury. The result shows that the compound can be used for preparing the anti-cardiovascular disease medicine.

The invention discloses a sodium-ion battery electrolyte with high cycle performance and a preparation method thereof, and the preparation method comprises the following steps: dissolving a sodium salt in an organic solvent, and mixing to obtain a sodium salt solution; the method comprises the following steps: adding a film-forming agent, a flame retardant and an additive into a sodium salt solution, and uniformly mixing to obtain the electrolyte, the additive is obtained by carrying out amino-propylene addition reaction on tri-n-butyl (1-propenyl) tin and 2, 3, 5, 6-tetra (amino) p-benzoquinone, and then carrying out sulfydryl-propylene addition reaction on the obtained product and 1, 2-disulfydryl-o-carborane. By optimizing the composition and the preparation process of the electrolyte, the obtained sodium-ion battery electrolyte shows excellent stability in multiple cycle tests, the capacity retention ratio is remarkably improved, and the capacity attenuation is lower than 5% when the cycle index reaches 1000 or above. The electrolyte also has good low-temperature performance and thermal stability, and can normally work in a wide temperature range of-20 DEG C to 60 DEG C.

The invention relates to a synthetic method of an efficient polysubstituted pyrrolo [2, 1-a] isoquinoline compound, and discloses a method for synthesizing the polysubstituted pyrrolo [2, 1-a] isoquinoline compound by taking a 2-(3, 4-dihydroisoquinoline-2 (1H)-yl) malononitrile compound and 2, 3-dichloro-5, 6-dicyanobenzoquinone as oxidizing agents and substituted isocyano acetate under the action of a catalyst. The method has the advantages of cheap initial raw materials, mild reaction conditions and simple experimental operation, can save the investment of funds and labor force, and provides a simple and efficient preparation method for the polysubstituted pyrrole [2, 1-a] isoquinoline compound.

The invention is applicable to the technical field of eutectic materials, and provides an organic macrocyclic aromatic hydrocarbon-based eutectic material and a preparation method and application thereof, the eutectic material is a metastable material EtLP6-F4TCNQ alpha, and is prepared by taking oblique tower aromatic hydrocarbon as a subject and electron-deficient 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8-tetracyanodimethyl p-benzoquinone as an object, and carrying out co-crystallization on the oblique tower aromatic hydrocarbon and the 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8-tetracyanodimethyl p-benzoquinone to obtain the organic macrocyclic aromatic hydrocarbon-based eutectic material. And carrying out mechanical grinding on 2, 3, 4, 5, 6, 8-tetracyanodimethyl p-benzoquinone. According to the method, two or more organic molecules are directly mixed and induced to form the eutectic structure through simple mechanical grinding operation, the method is efficient, low in cost and easy for large-scale production, the eutectic material with the metastable structure is prepared, and the metastable structure shows higher sensitivity and faster response speed in gasochromic detection.

The invention discloses a method for efficiently co-producing benzoquinone and cyclohexanone based on electrochemical oxidation / reduction of phenol, which adopts an acid-base mixed electrochemical electrolytic tank, the anode electrolyte is alkaline electrolyte, the cathode electrolyte is acidic electrolyte, the anode electrode is nickel foam loaded with nickel sulfide-nickel oxide composite nanosheets, and the cathode electrode is nickel foam loaded with nickel sulfide-nickel oxide composite nanosheets. The cathode electrode is a palladium-nickel-boron nanoparticle alloy with nitrogen-doped porous carbon as a carrier, and the anode electrolyte and the cathode electrolyte are separated by a bipolar membrane; the phenol is added into the anolyte and the catholyte, so that the phenol is electrochemically oxidized by the anode to generate an additional product benzoquinone with high economic value, and meanwhile, the phenol is catalyzed by the cathode to be reduced to generate an additional product cyclohexanone with high economic value. The whole system only needs to consume acid and alkali, the method has the advantages of being good in environmental protection effect and considerable in capacity, and the electrochemical electrolytic tank is good in stability, simple in preparation method, low in cost and easy to achieve large-scale production and has the potential to be applied to large-scale treatment of acid and alkali wastewater containing phenol in industry.

The invention discloses application of a benzoquinone-based covalent organic framework material as a bifunctional photocatalyst in a photo-assisted lithium-air battery, and the benzoquinone-based covalent organic framework material is prepared by taking cyclohexanehexone octahydrate and 2, 3, 5, 6-tetraaminocyclohexane-2, 5-diene-1, 4-diketone as raw materials, ethylene glycol as a solvent and acetic acid as a catalyst through a hydrothermal reaction. And carrying out Schiff base reaction under the protection of nitrogen atmosphere. The benzoquinonyl covalent organic framework material has a large number of donor and acceptor units, has a wide visible light absorption range, can be used as a photo-assisted lithium-air battery bifunctional photocatalyst, greatly inhibits photon-generated carrier recombination, reduces the over-potential of a photo-assisted lithium-air battery, remarkably improves the battery assembly efficiency, and has a wide application prospect. And a new direction is provided for selection of photocatalysts in the field of lithium-air batteries.

The invention belongs to the technical field of lithium organic batteries, and provides a conjugate extended lithium-containing organic positive electrode material and a preparation method and application thereof. The synthesis process of the positive electrode material comprises the following steps: firstly, taking tetraamino p-benzoquinone as a raw material, and carrying out oximation modification reaction on the tetraamino p-benzoquinone to generate tetraamino p-oximic acid; then, carrying out composite treatment on the TAPO and a lithium source to obtain lithium tetraamino p-oximate; and finally, through a condensation polymerization reaction, further preparing to obtain the polybenzoquinone-pyrazine extended lithium oximate. Through specific chemical treatment, the organic material contains a lithium element, so that the dependence on an external lithium source (such as a metal lithium negative electrode or a lithium supplement agent) is eliminated. Through ingenious molecular design and synthesis strategies, the conductivity of the material is improved, and the rate capability, the solubility resistance, the high-temperature stability and the cycle life of the material are remarkably enhanced, so that a solid foundation is laid for long-term stable operation and high-performance expression of a battery.

The invention discloses 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole and a synthesis method of the 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl) The method comprises the following steps: taking 3-nitrophthalic acid as an initial raw material, reacting trichloroisocyanuric acid with liquid bromine to obtain 1, 2-dibromo-3-nitrobenzene, reducing by stannous chloride to obtain 2, 3-dibromoaniline, carrying out diazotization reaction to obtain 2, 3-dibromophenylhydrazine, reacting with p-tert-butyl cyclohexanone, and reacting by using 2, 3-dichloro-5, 6-dibromophenylhydrazine to obtain 2, 3-dibromophenylhydrazine. The preparation method comprises the following steps: carrying out dehydrogenation on 2, 6-dicyanobenzoquinone to obtain 1, 2-dibromo-6-tert-butyl-9H-carbazole, and finally reacting the 1, 2-dibromo-6-tert-butyl-9H-carbazole with 4-tert-butyl iodobenzene to obtain the 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole. Due to the existence of a bromine atom functional group on the 1, 2-dibromo-6-tert-butyl-9-(4-tert-butylphenyl)-9H-carbazole, the further conversion of the compound has expandability, and the compound can be used as a material / drug molecule precursor in the fields of organic light-emitting semiconductors, pharmaceutical chemistry and the like.

The invention belongs to the field of electrochemical gas sensors, and particularly relates to a phenol gas sensor based on quantum dots and a preparation method of the phenol gas sensor. The gas sensor comprises a quantum dot sensing film, polyphenol oxidase on the surface of the quantum dot sensing film and an enzyme stabilizing composite reagent covering the polyphenol oxidase, benzoquinone is formed on the basis that phenol is oxidized through molecular oxygen on the basis of the polyphenol oxidase, the enzyme-substrate efficient specific catalysis effect is achieved, and the content of the polyphenol oxidase in the gas sensor is increased. The polyphenol oxidase-based quantum dot phenol gas sensor is designed. The sensor is high in phenol gas detection specificity and sensitivity.

The invention discloses a multi-layer composite microemulsion and a mask, and belongs to the technical field of biology, the multi-layer composite microemulsion comprises 10-50 parts by weight of an inner water phase, 20-100 parts by weight of an outer water phase, and 5-40 parts by weight of an oil phase; the inner water phase is prepared from the following raw materials in parts by weight: 0.1 to 10 parts of oat protein, 0.1 to 5 parts of Tween and 20 to 50 parts of water; the external water phase is prepared from the following components in parts by weight: 0.1 to 5 parts of antioxidant, 0.1 to 5 parts of Tween, 0.01 to 0.5 part of sodium hyaluronate and 20 to 50 parts of water; the oil phase is prepared from the following components in parts by weight: 0.1 to 20 parts of benzoquinone fat-soluble compounds, 0.5 to 10 parts of span and 10 to 50 parts of compound grease; according to the invention, an inner water phase, an outer water phase and an oil phase are utilized to form a microemulsion containing a plurality of nutrient substances.

The invention belongs to the technical field of electrolytic preparation, and discloses a method for preparing high-concentration hydroquinone by electrolyzing phenol. The method comprises the following steps: adding a sulfuric acid aqueous solution into an anode chamber and a cathode chamber of an H-shaped electrolytic cell, adding phenol into the anode chamber, and electrifying for electrolysis to obtain a sulfuric acid solution containing p-benzoquinone; extracting the sulfuric acid solution containing p-benzoquinone to obtain a p-benzoquinone organic solution and an anode chamber circulating sulfuric acid solution; adding a sulfuric acid aqueous solution into an anode chamber and a cathode chamber of another H-shaped electrolytic cell, adding a p-benzoquinone organic solution into the cathode chamber, and electrifying for electrolysis to obtain a sulfuric acid solution containing hydroquinone and a liquid separation extraction agent; and the obtained sulfuric acid solution containing hydroquinone is repeatedly added into the cathode chamber, so that hydroquinone obtained through reduction of p-benzoquinone is enriched in the cathode chamber, and the concentration of the hydroquinone product is improved. The concentration of hydroquinone in the electrolyte can be effectively improved.

The invention discloses high-temperature-resistant and anti-yellowing LED (light-emitting diode) packaging glue which comprises glue A, glue B and powder C, the adhesive A comprises epoxy resin, a flexibilizer, a flatting agent, a main antioxidant, an auxiliary antioxidant, a diluent, a defoaming agent and a silane coupling agent; wherein the main antioxidant is a hindered phenol antioxidant; the auxiliary antioxidant is a phosphite ester antioxidant; the glue B comprises an anhydride curing agent and an accelerant; and the powder C comprises diffusion powder and matte powder. The hindered phenol antioxidant and the phosphite antioxidant have a synergistic effect, and the phosphite antioxidant reduces an oxidation product of the hindered phenol antioxidant, namely a benzoquinone chromophoric group, so that the color of a system is protected, and the long-term stability of the material is ensured; the heat resistance, the aging resistance, the oxidation resistance and the UV resistance of the packaging glue are improved, so that the packaging glue does not generate color change, the color of a system is protected, the long-term stability of a material is ensured, the yellowing delaying rate reaches 50% or above, and the high temperature resistance can reach 260 DEG C.

The invention relates to the technical field of capacitive deionization, in particular to an electrode for capacitive deionization and a preparation method thereof. The electrode for capacitive deionization comprises an electrode material, a carbon material and an adhesive, the electrode material is DHPZ, and a preparation method of the DHPZ comprises the following steps: S1, primary reaction: grinding and mixing 2, 5-dihydroxy-1, 4-benzoquinone and 2, 3-diaminophenazine, heating in inert gas, cooling, filtering, cleaning and performing vacuum drying to obtain a primary product; and S2, acidizing the primary product, namely mixing the primary product with 2mol / L nitric acid according to a mass-volume ratio of 1: 1, magnetically stirring for 5 hours, filtering, cleaning with deionized water, centrifuging for multiple times, and drying in vacuum at 60 DEG C for 15 hours to obtain the DHPZ. According to the electrode for capacitive deionization and the preparation method of the electrode, the problems that in the capacitive deionization related technology, the desalting capacity is low, and the adsorption capacity and the removal efficiency are not high are solved.

The application discloses a method for realizing resource utilization of phenol pollutants in water by using a nickel-ruthenium hybrid electrocatalyst, and belongs to the technical field of environmental electrocatalytic water treatment. The nickel-ruthenium hybrid electrocatalyst loaded on carbon cloth is prepared by using a simple two-step electrodeposition method, aiming at problems such as high energy consumption, high material consumption and high carbon emission of a traditional wastewater treatment mode. The catalyst has high stability and high selectivity, and can realize directional conversion of phenol pollutants in water into high-value p-benzoquinone under mild conditions, so as to simultaneously realize removal of the phenol pollutants in water and recovery of high-value-added chemicals. The application provides a new method for treatment and resource utilization of high-concentration phenol wastewater.

The invention discloses a low-disordered expanded pi conjugated organic material, a preparation method thereof and a potassium ion battery. The preparation method comprises the following steps: by taking commercial tetraaminobenzoquinone as a synthetic monomer, adding a hydrochloric acid solution for ultrasonic dispersion, then adding sodium acetate to obtain a turbid solution II, then placing the turbid solution II in flowing oxygen, heating and stirring, then washing and drying, putting the obtained powder into dimethyl sulfoxide to obtain a turbid solution III, then ventilating and drying at high temperature, then washing with ethanol, and filtering to obtain a target product. And drying in vacuum to obtain the low-disordered expanded pi conjugated organic material. The organic material can expose more active sites and has a more open skeleton structure, potassium ion diffusion paths are reduced, the capacity and rate capability of TAPT can be greatly improved, the problem that the capacity, cycling stability and ionic conductivity are difficult to improve at the same time when the organic electrode material is applied to a potassium ion battery is solved, and the application prospect is wide. The preparation method is high in cost benefit, simple, convenient and environment-friendly in preparation process, wide in application range and excellent in electrochemical performance.

The present invention discloses a high-capacity and fast charge storage aromatic organic material, a preparation method thereof, and a deep-sea energy storage battery. The method uses tetraaminobenzoquinone as a synthetic monomer, adds sodium chloride and stirs evenly to obtain a black mixture; the black mixture is transferred to a nylon ball mill, concentrated hydrochloric acid is added to the tank, and then ball milling is performed to obtain a mixture; the mixture is put into a dilute sulfuric acid solution and boiled, and the precipitate is washed with deionized water and ethanol after filtering, and dried at high temperature under a vacuum environment to obtain a powder; after high-temperature calcination, it is naturally cooled to room temperature to obtain a high-capacity and fast charge storage aromatic organic material. The material of the present invention is applied to potassium ion batteries, which can significantly improve their electrochemical performance. The present invention has the advantages of high cost-effectiveness, simple and environmentally friendly preparation process, wide applicability, and excellent electrochemical properties.

The invention relates to the technical field of electronic packaging materials, in particular to an epoxy resin curing agent masterbatch with latent catalysis and a preparation method of the epoxy resin curing agent masterbatch. The raw materials of the catalyst comprise triphenylphosphine and benzoquinone. By adopting the specific raw materials and the specific preparation process and strictly controlling the raw material adding sequence and the heating temperature, the epoxy resin composition prepared from the masterbatch has a larger processing window and excellent flowability and storage performance.

The invention provides a preparation method of dehydronandrolone acetate, and relates to the technical field of medicine synthesis. The dehydronandrolone acetate is prepared by carrying out oxidation reaction on etherates; wherein the preparation of the etherate comprises the following steps: step 1, carrying out esterification reaction on nandrolone to obtain an ester; and 2, carrying out an etherification reaction on the esterified product obtained in the step 1 to obtain an etherified product. According to the method for preparing the dehydronandrolone acetate, the dehydrogenation reaction can be completed at normal temperature, and compared with the prior art, the energy consumption and the operation complexity are remarkably reduced. The method disclosed by the invention is safe and environment-friendly, is convenient for recycling, reduces the recycling cost, avoids the problem of generating high-risk nitrosamine genotoxic impurities, and meanwhile, the chloranil is used as the dehydrogenating agent, and the reduction product is easy to recycle and reuse, so that the production cost is further reduced, and the generation of wastes is reduced.

The present invention discloses a p-phenylenediamine compound, a preparation method thereof and an application thereof. The compound is obtained by subjecting 2,4-diaminodiphenylamine and a ketone to a hydrogenation reaction in the presence of a catalyst. Compared with the current mainstream antioxidant 6PPD, the compound of the present invention has good anti-dynamic / static ozone protection performance, good anti-dynamic fatigue performance and anti-migration discoloration performance; the tire added with the compound of the present invention will not produce residues of toxic p-benzoquinone structural substances during use, is more environmentally friendly, is an ideal substitute for antioxidant 6PPD, has good economic and social benefits, and has a broad market prospect.

The present invention relates to a process of oxidation of 2,3,6-trimethyl phenol by oxygen or an oxygen-containing gas in the presence of in the presence of a copper (II) halide as catalyst and of water and a specific diol comprising at least on tertiary hydroxyl group as reaction medium.

The invention discloses a zinc-iodine battery based on a zinc bromide electrolyte, and belongs to the technical field of chemical energy batteries. The zinc-iodine battery comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode is a positive electrode containing a dual catalytic system, and the electrolyte is an electrolyte containing zinc bromide; the positive electrode containing the dual catalytic system comprises a dual catalytic system material, conductive carbon and a binder; the dual catalytic system material is obtained by mixing an iodine elementary substance and a non-polar compound which contains halogen and a carbon group and has a symmetrical structure. The preparation method comprises the following steps: adding tetrabromo-p-benzoquinone and elemental iodine into an organic solvent for dissolving, and removing the organic solvent to obtain the dual catalytic system material, wherein the non-polar compound containing halogen and a carbon group and having a symmetrical structure is tetrabromo-p-benzoquinone. The two-step reaction of the zinc-iodine battery is doubly catalyzed by the TBBQ and the Br <->, the reaction kinetics is improved, and meanwhile, the TBBQ and the Br <-> can be subjected to oxidation-reduction reaction at the same potential to provide extra capacity, so that the construction of the high-rate and high-capacity zinc-iodine battery is realized.

The invention relates to a small organic molecule material, a preparation method thereof and an application of the small organic molecule material in an aqueous zinc ion battery, and the small organic molecule material is an imine small organic molecule (PD-TABQ) formed by condensation of 1, 10-phenanthroline-5, 6-diketone and 2, 3, 5, 6-tetra (amino) p-benzoquinone. The small organic molecule is prepared by carrying out reflux reaction, washing and drying on 1, 10-phenanthroline-5, 6-diketone and 2, 3, 5, 6-tetra (amino) p-benzoquinone, and has the advantages of low solubility, good conductivity, large capacity density and good cycle performance. When the PD-TABQ positive electrode is applied to an aqueous zinc ion battery, the PD-TABQ positive electrode has the high initial capacity of 163.4 mAh g <-1 > under the current density of 0.1 Ag <-1 >. And excellent performance and application prospects are shown in the field of aqueous zinc ion batteries.

The invention relates to the technical field of organic functional material synthesis and mycotoxin removal, in particular to a magnetic covalent organic framework for adsorbing zearalenone and a preparation method and application thereof.The magnetic covalent organic framework is Fe3O4 (at) COF-VPBA and is prepared from 1, 3, 5-tris (4-aminophenyl) benzene, 2, 5-dimethoxy terephthalaldehyde, 4-alkenyl phenylboronic acid, boron trifluoride diethyl etherate, 2, 3-dichloro-5, 5-di (4-aminophenyl) benzene, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2 The catalyst is prepared from 2, 6-dicyano-1, 4-benzoquinone and nano ferroferric oxide through a four-component one-pot in-situ Povarov reaction. According to the method, the process is simplified, the defects of a fractional step method are avoided, due to specific covalent binding of boric acid groups and ZEN catechol hydroxyl groups, the adsorption capacity and the adsorption rate are remarkably superior to those of traditional and unfunctionalized adsorption materials, the adsorption rate still exceeds 90% after acetonitrile is eluted and regenerated and is repeatedly used for more than 5 times, and the comprehensive requirements of high selectivity, high adsorption capacity, easiness in separation and recyclability are met.

The invention discloses a method for preparing p-benzoquinone through selective electrocatalytic oxidation of phenol by using a carbon cloth loaded ferronickel catalyst, the method adopts the carbon cloth loaded ferronickel catalyst as an anode to realize efficient conversion of phenol in an aqueous solution into p-benzoquinone, and the product is only p-benzoquinone. The method has the advantages of simple operation process, mild reaction conditions, high catalytic activity, high chemical selectivity and high target compound yield. The p-benzoquinone is prepared by oxidizing phenol in an alkaline environment, so that the use of toxic and harmful chemical oxidants is avoided, the pollutant emission is reduced from the source, and the method is an environment-friendly synthesis process and conforms to the development concept of green chemistry.

The invention discloses a high-barrier packaging material and a preparation method thereof, and relates to the technical field of packaging materials. When the high-barrier packaging material is prepared, 5, 12-tetrabenzoquinone and tetrabromomethane react to prepare an intermediate; reacting the intermediate with 4-(benzyl acrylate) phenylboronic acid to obtain a stilbene-based cross-linking agent; the preparation method comprises the following steps: carrying out a reaction on polyethylene glycol terephthalate, 3-amino propylene and allyl tri (trimethylsiloxy) silane to prepare functional polyester; reacting the pre-modified nano mica sheet with methyl iodide to obtain a modified nano mica sheet; the preparation method comprises the following steps: uniformly mixing functional polyester, a stilbene-based cross-linking agent, a modified nano mica sheet and 7-methyl-1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene, and carrying out blow molding to obtain the high-barrier packaging material. The high-barrier packaging material prepared by the invention has excellent flame-retardant, antibacterial, anti-aging and high-barrier properties.

The invention discloses a column [n] arene benzoquinone oxime ortho-position functionalized derivative and a preparation method thereof, and particularly relates to a preparation method for obtaining the column [n] arene benzoquinone oxime ortho-position functionalized derivative by reacting column [n] arene [1] benzoquinone oxime with a Grignard reagent. In the structure of column [n] arene [1] benzoquinone oxime, when alpha, beta-unsaturated ketone and a Grignard reagent are subjected to nucleophilic addition reaction, a 1, 4-addition product with high yield can be obtained, and no 1, 2-addition product exists. The method is mainly characterized in that protons can be removed from hydroxyl of oxime in column [n] arene [1] benzoquinone oxime under an alkaline condition, and oxygen negative ions of the hydroxyl are combined with positively charged metal magnesium atoms in a Grignard reagent to form a six-membered ring transition state, so that R negative ions can attack a No.4 carbon atom of alpha, beta-unsaturated ketone, and a 1, 4-addition reaction is carried out. The preparation method disclosed by the invention is mild in condition and can be carried out without harsh reaction conditions.