353 results about "Propylamine" patented technology

The invention relates to the technical field of additive processing, and particularly discloses an additive for mixing raw materials of a carbon-based ceramic friction material and a preparation method of the additive. The preparation method comprises the following steps: mixing a treated multi-walled carbon nanotube with a sodium borate and ethylenediamine aqueous solution, calcining at high temperature to obtain a boron nitride-loaded multi-walled carbon nanotube, and combining with a cross-linking agent to prepare a functional filler; adding ethylenediamine, 3, 3-diphenylpropylamine and palladium acetate into the prepared N-methyl pyrrolidone and polyether-ether-ketone solution to obtain modified polyether-ether-ketone; and mixing the modified polyether-ether-ketone, a functional filler, an antioxidant, a lubricant and N, N-dimethylformamide to obtain the additive for mixing the raw materials of the carbon-based ceramic friction material. The additive provided by the invention has good compatibility, can significantly improve the processing molding performance and mechanical strength of the friction material, and effectively reduces the wear rate.

The invention discloses a biodegradable granular fertilizer base material for lemons and a preparation and application method of the biodegradable granular fertilizer base material, and belongs to the technical field of agricultural materials. The invention relates to a water-based paint which is characterized by being prepared from the following components in parts by weight: 20 to 52 parts of castor oil, 8 to 18 parts of solvent, 2 to 5 parts of self-made aminopropyl oligosiloxane, 15 to 24 parts of hexamethylene diisocyanate and 16 to 24 parts of n-propylamine modified polyvinyl alcohol. According to the base material disclosed by the invention, the oligomeric siloxane and the modified polyvinyl alcohol are introduced, and under the synergistic improvement effect of the oligomeric siloxane and the modified polyvinyl alcohol, after the base material coats the fertilizer, the fertilizer can be slowly released for more than 120 days in a long-acting manner; the fruiting growth cycle of the lemons is long, and after the base material is coated with the fertilizer, the whole growth cycle of the lemons can be completely covered; the investment of labor force is reduced, and the production efficiency is improved; and the base material fully improves the utilization efficiency of the granular fertilizer, reduces the fertilization amount and the fertilization frequency, and improves the production efficiency in the lemon planting process.

The invention discloses a method for preparing a two-dimensional β-ketoenamine covalent organic framework nanosheet, which belongs to the technical field of synthesis of nanomaterials. The specific preparation steps are as follows: a fatty amine aqueous solution is prepared with water as a solvent, the fatty amine aqueous solution is used as a stripping solution, wherein the fatty amine is one or more of propylamine, butylamine, di-n-propylamine, di-n-butylamine or triethylamine; a bulk material COF-JLU2, NUS-3 or TFP-DABA is placed in the stripping solution, and the fatty amine is used as an intercalation agent to enter the interlayer of the bulk material, and the stripping is performed under the assistance of ultrasound, and then the dispersion is centrifuged and washed, and dried to obtain a two-dimensional β-ketoenamine covalent organic framework nanosheet. The invention is simple to make, and can prepare a few-layer nanosheet at low cost and on a large scale; the invention can efficiently prepare a few-layer nanosheet with high selectivity.

The invention provides a pipeline flow monitoring device for perfluorotripropylamine production. According to the pipeline flow monitoring device, the association rule of the scaling thickness and the feeding flow fluctuation is analyzed by obtaining the scaling image of the inner wall of the pipeline, extracting features and calculating the scaling thickness and combining with a prediction model trained by historical data. And judging whether the pipeline needs to be cleaned or not according to the predicted flow fluctuation condition. Meanwhile, feeding pressure and flow are monitored in real time, the change trend is analyzed, and the rotating speed of the feeding pump is adjusted in time. In addition, spectrum analysis is carried out on the flow fluctuation data, and whether the scaling risk exists or not is judged.

The invention relates to the technical field of electroplating (IPC classification number: C25D), in particular to a leveling agent for a hole filling and copper plating process of a micro blind hole with a high thickness-diameter ratio, an electroplating solution and a copper plating process. The leveling agent is a polymerization product of linear amine and polyol glycidyl ether; preferably, the straight-chain amine is compounded by primary diamine and unsaturated straight-chain monoamine. Primary diamine, propargylamine and polyol glycidyl ether are polymerized to obtain the leveling agent with a specific molecular structure, and the obtained leveling agent is especially suitable for filling micro blind holes; in the blind hole filling process, electroplating is uniform, and the surface of a carrier plate material is bright and free of cracks, cavities and other defects when thin-surface copper is plated. When the leveling agent is added into an electroplating solution system and hole filling electroplating is carried out on blind holes with the thickness-diameter ratio of 0.2-1.7, the recession degree of the blind holes is smaller than 5 micrometers, the filling rate is larger than 95%, the surface of a carrier plate is bright, pinholes and hard spots do not exist, and the leveling agent can adapt to different carrier plate materials and process requirements and is wide in application prospect.

The invention belongs to the technical field of solar cells, and provides a passivation method of a perovskite layer and a preparation method of a perovskite solar cell. The passivation method comprises the following steps: preparing a perovskite layer by adopting a perovskite precursor solution containing 3-methylsulfonyl propylamine hydrochloride, and carrying out bulk phase passivation on the perovskite layer, the concentration of the 3-methylsulfonyl propylamine hydrochloride in the perovskite precursor solution is 1 to 3 mg / mL; carrying out surface passivation on one surface of the perovskite layer by adopting a surface passivation agent containing 3-methylsulfonyl propylamine hydrochloride; the concentration of the 3-methylsulfonyl propylamine hydrochloride in the surface passivating agent is 1 to 3 mg / mL. According to the passivation method, 3-methylsulfonyl propylamine hydrochloride is introduced as an additive and a surface passivator, deep energy level defects on the bulk phase and the surface of a perovskite layer can be passivated, and a better passivation effect is achieved, so that the stability and the comprehensive performance of the perovskite solar cell can be further improved.

The invention belongs to the technical field of flow battery energy storage, and discloses a multifunctional electrolyte for a zinc-bromine flow battery, a preparation method and the zinc-bromine flow battery, and the multifunctional electrolyte for the zinc-bromine flow battery comprises bromine salt, a conductive additive, water, choline bromide and N-methyl-N, N-bis (2-hydroxyethyl)-1-propylamine bromide. The molar ratio of the choline bromide to the N-methyl-N, N-bis (2-ethoxyl)-1-propylamine bromide is (0.5 to 9): 1. Based on a'synergistic 'effect and an'antagonistic' effect of a polyhydroxy structure and a choline group, effective balance between homogeneous phase performance, anti-freezing performance and the like of the electrolyte can be realized, so that the performance of a battery is improved.

The invention discloses a preparation method of 1-cyclopropylpiperazine, which belongs to the technical field of pharmaceutical chemicals, and comprises the following steps: taking diethanol amine as a starting material, and carrying out substitution reaction with a sulfonyl reagent to generate an intermediate I; reacting the intermediate I with cyclopropylamine to generate an intermediate II; the intermediate II is subjected to a sulfonyl removal reaction, and 1-cyclopropyl piperazine is generated; compared with the prior art, the synthesis route provided by the invention has the advantages that the initial raw materials are simple and easy to obtain, and the 1-cyclopropylpiperazine is simply, conveniently and efficiently obtained by adopting the inorganic base as the acid-binding agent in the reaction; the problems of high danger and toxicity, high production cost and low production efficiency in the existing preparation process of the 1-cyclopropylpiperazine are solved.

The invention relates to an automatic liquid supplementing continuous production device and process for perfluorotripropylamine, and belongs to the field of perfluorotripropylamine preparation and fluid working systems. An electrolysis assembly adopts an electrolytic fluorination method and works together with a water path circulation assembly, an automatic detection liquid supplementing assembly and a liquid density detection assembly; the liquid level monitor is used for monitoring the liquid level of the electrolysis assembly for liquid supplementing, the density detector is used for detecting the solution density at the positions of the liquid inlet and the liquid outlet of the electrolysis assembly to judge whether electrolysis is completed or not, concentrated recycling is conducted through the middle cylinder after complete electrolysis, and the electrolysis assembly conducts liquid supplementing continuous work; and discharging the crude product of the perfluorotripropylamine in the middle cylinder, and carrying out double rectification recovery and rectification purification, so as to realize the high-efficiency and high-purity industrial production of the perfluorotripropylamine.

The invention discloses a high-impact polyphenylsulfone composite material and a preparation method thereof, and relates to the technical field of polymer materials. When preparing the high-impact polyphenylsulfone composite material, the present invention reacts 3-mercapto-1,3-propylene glycol and 4-mercaptophenyl boric acid to obtain bis-mercapto borate; reacts 3-mercapto-1-propylamine and 2-pyridine formaldehyde and then reacts with copper acetate to obtain a pyridine Schiff base copper complex; 4,4'-difluorodiphenyl sulfone, decafluorodiphenyl sulfone, biphenyl diphenol, 2,2'-diallyl bisphenol A are polycondensed to obtain functionalized polyphenylsulfone; nano-montmorillonite is sequentially reacted with copper nitrate and allyl triethoxysilane to obtain modified montmorillonite; functionalized polyphenylsulfone, modified montmorillonite, bis-mercapto borate, and pyridine Schiff base copper complex are mixed and then injection molded to obtain a high-impact polyphenylsulfone composite material. The high-impact polyphenylsulfone composite material prepared by the present invention has excellent self-repairing, impact resistance, antibacterial and hydrophobic properties.

The invention discloses a method for preparing spermidine. The method comprises the following steps: dissolving oxalyl chloride and a base in a first solvent, slowly adding 4-bromo-1-butylamine hydrobromic acid, and reacting to obtain 2-((4-bromobutyl)amino)-2-oxoacetyl chloride; adding a base to the reaction solvent of the obtained 2-((4-bromobutyl)amino)-2-oxoacetyl chloride, and slowly adding 3-bromo-1-propylamine hydrobromic acid to obtain N 1 ‑(4‑Bromobutyl)‑N 2 ‑(3‑bromopropyl)oxalamide; 1 ‑(4‑Bromobutyl)‑N 2 ‑(3‑bromopropyl)oxalamide, benzylamine and a base are added to a second solvent to react to obtain 8‑benzyl‑1,4,8‑triazacyclododecane‑2,3‑dione; 8‑benzyl‑1,4,8‑triazacyclododecane‑2,3‑dione is added to an acid for hydrolysis to obtain N 1 ‑(3‑Aminopropyl)‑N 1 Benzylbutane-1,4-diamine; N 1 ‑(3‑Aminopropyl)‑N 1 Benzylbutane-1,4-diamine is added to Raney nickel / methanol, and hydrogen is passed through the reaction to obtain crude spermidine, which is then distilled to obtain pure spermidine. The preparation method of the present invention is easy to operate and safe, easy to industrial-scale production, and has a high conversion rate of spermidine and high product purity.

The invention relates to a synthetic method of a refined dimethenamid intermediate, which comprises the following steps: adding methanol and L-alanine into a reaction flask, starting to heat, dropwise adding an esterification reagent at a certain temperature while keeping the temperature, reacting at the same temperature while keeping the temperature after dropwise adding is finished, and after the reaction is finished, carrying out post-treatment to obtain a crude product of (S)-2-amino methyl propionate; adding a solvent and a first reducing agent into the reaction flask, dropwise adding the (S)-2-methyl aminopropionate crude product and a second reducing agent at low temperature, and after dropwise adding, carrying out heat preservation reaction for a period of time at the same temperature; and raising the reaction temperature, carrying out high-temperature heat-preservation reaction for a period of time, and carrying out post-treatment to obtain the refined dimethenamid intermediate (S)-(+)-1-methoxy-2-propylamine. When the method is used for preparation, the product can be obtained only by esterifying and reducing the raw materials, the steps are simple, the raw materials are cheap and easy to obtain, and the yield is greater than 90%.

A cleaning solution for a turbine engine includes water; a first organic acidic component that comprises citric acid; a second organic acidic component that comprises glycolic acid; isopropylamine sulphonate; alcohol ethoxylate; triethanol amine; and sodium lauriminodipropionate. The cleaning solution has a pH value between about 2.5 and about 7.0.

The invention provides an asphalt cold-mixing repair composite material and a preparation method thereof, and the preparation method comprises the following steps: preparing modified asphalt, preparing modified zeolite powder and mixing. The step of preparing the modified zeolite powder comprises primary modification and secondary modification; the secondary modification step comprises the following steps: mixing preliminarily modified zeolite powder with deionized water, hexadecyl trimethyl ammonium chloride and ethyl cellulose, carrying out primary ball milling treatment, controlling the ball-to-material ratio to be (4-8): 1, the ball milling rotating speed to be 245-255 rpm, the ball milling temperature to be 83-85 DEG C and the ball milling time to be 24-26 min, adding xylitol and 3-mercapto-1-propylamine after the primary ball milling is finished, and carrying out secondary ball milling treatment to obtain a modified zeolite powder; carrying out secondary ball-milling treatment, controlling the ball-milling temperature to be 68-72 DEG C, the ball-to-material ratio to be (10-14): 1, the ball-milling rotating speed to be 184-196rpm and the ball-milling time to be 30-38min, and after the secondary ball-milling treatment is finished, drying to obtain modified zeolite powder; the composite material prepared by the method disclosed by the invention is less in weight loss in a low-temperature and salt environment, the strength performance and water resistance of a repaired pavement are strong, and the strength performance retention rate in the low-temperature and salt environment is high.

The invention provides asymmetric quaternary ammonium base as well as a preparation method and application thereof, and belongs to the technical field of organic chemistry. Comprising the following steps: mixing halide and tri-n-propylamine, adding into a solvent, heating and stirring for reaction, removing the solvent under reduced pressure, dissolving into water to prepare a solution, and preparing the asymmetric quaternary ammonium base by using bipolar membrane electrodialysis. According to the preparation method of the asymmetric quaternary ammonium base, firstly, the asymmetric quaternary ammonium salt is prepared through a chemical synthesis method, then the asymmetric quaternary ammonium base is prepared through bipolar membrane electrodialysis, the preparation method is simple and efficient, the prepared product is high in yield and mild in condition, and the asymmetric quaternary ammonium base can serve as a template agent to be used in the preparation process of a molecular sieve; wide application prospects are realized.

The invention relates to a solid electrolyte of organic-inorganic hybrid halogen compound molecules, preparation thereof and an all-solid-state battery, and belongs to the technical field of energy storage batteries. The chemical general formula of the solid electrolyte is MaNb + eQcXdYa + bn + cq + dxZen or MaN2b + eQcXdYa + cq + dxZenObn, wherein M is selected from one of methylamine, ethylamine, propylamine, butylamine, aniline, benzylamine and phenylethylamine; n, Q and X are different metal elements; y is selected from halogen; z is a pseudohalide ion; the value range of a, b, c, d and e is 0 lt; a < = 3, 0lt; b < = 3, 0lt; c < = 1, 0lt; d < = 1, 0lt; e < = 6; and n, q and x are values of valences of the N element, the Q element and the X element respectively. The electrolyte material disclosed by the invention has high ionic conductivity, good flexibility and machinability and excellent air stability, and a battery formed by the solid electrolyte material has excellent electrochemical performance.

The invention belongs to the technical field of automatic control, and discloses a cyclopropylamine (R)-mandelate crystallization process feedback control method, which comprises the following steps: acquiring the concentration, solvent temperature, stirring speed and pH value of cyclopropylamine (R)-mandelate in a solvent in real time, and forming a state parameter set reflecting the real-time state of a cyclopropylamine (R)-mandelate crystallization system; based on the state parameter set, deriving a solute supersaturation degree change rate, a nucleation rate and a crystal growth rate by adopting an explicit kinetic relationship to obtain a kinetic feature set of the cyclopropylamine (R)-mandelate; collecting the grain size, the shape and the crystallization uniformity of the crystal, and constructing a corresponding crystal quality prediction function in combination with the kinetic feature set of the cyclopropylamine (R)-mandelate to obtain a predicted crystal quality index; comparing the actually detected crystal morphology index with the predicted crystal quality index, and calculating to obtain a deviation value; the crystal quality of the cyclopropylamine (R)-mandelate is improved.

The invention belongs to the technical field of organic synthesis, and particularly relates to an improved gemfibrozil intermediate preparation method which comprises the following steps: S1, adding metal lithium and diisopropylamine into an organic solvent, cooling to 0-5 DEG C, adding a catalyst, carrying out ultrasonic-assisted reaction, heating to 8 DEG C, and continuing ultrasonic treatment; and S2, after the reaction of the metal lithium in the step S1 is finished, controlling the system temperature, then slowly dropwise adding isobutyl isobutyrate, carrying out heat-preservation stirring, dropwise adding 1, 3-bromochloropropane or 1, 3-dibromopropane, carrying out a heat-preservation reaction after the dropwise adding is finished, carrying out a quenching reaction after the reaction is finished, carrying out liquid separation, washing with water, carrying out reduced pressure distillation on an organic phase, and collecting fractions, thereby obtaining the product. According to the preparation method provided by the invention, by optimizing reaction conditions and a post-treatment process, the process flow is simplified, the generation of byproducts and impurities is effectively reduced, the final product is ensured to be high in purity and few in impurities, and the yield is high and can reach 95% or above.

The invention relates to the technical field of petroleum drilling fluid loss reduction, and discloses an anti-divalent salt fluid loss agent for drilling fluid, which is prepared by the following steps: step 1, beta-cyclohexylamine and 6-chloro-1-hexene are subjected to a reaction to obtain alkenyl beta-cyclohexylamine; step 2, initiating polymerization of alkenyl beta-cyclopentadiene, a hyperbranched monomer pentaerythritol triallyl ether and 2-acrylamide-2-methylpropanesulfonic acid under the action of azobis (isobutylamidine hydrochloride), so as to obtain an intermediate A; 3, 3-dimethylamino-1-propylamine and palmitic acid are subjected to a reaction, and an intermediate 2 is obtained; 4, the intermediate 2 and benzyl chloride are subjected to a reaction, and quaternary ammonium salt modified fatty acid is obtained; and 5, stirring and mixing the intermediate A, quaternary ammonium salt modified fatty acid and coupling agent modified walnut powder to obtain the divalent salt resistant filtrate reducer for the drilling fluid. The anti-divalent salt filtrate reducer for the drilling fluid has a relatively good anti-divalent salt effect.

The invention discloses a method for continuously producing a glyphosate isopropylamine salt aqueous solution, and belongs to the technical field of pesticide preparation production. Compared with a traditional intermittent production process, the continuous production process has the advantages that equipment is intelligently upgraded, high-precision automatic metering equipment is controlled by adopting a DCS (Distributed Control System), flow speed is controlled to realize precise gradient feeding, and after strict quality inspection of reaction raw materials, continuous production is carried out in a stirred tank reactor provided with an anti-explosion system and a waste gas absorption device; the defect that quality control is difficult due to manual operation is overcome, and the danger that an operator is prone to poisoning, combustion and explosion due to the fact that isopropylamine is low in boiling point and drastically releases heat when reacting with glyphosate raw acid is avoided. The content of effective components of the prepared product is stabilized at 62% + / -0.5%, the product quality consistency is good, and the product better conforms to the general direction of modern green automatic intelligent manufacturing.

The invention discloses a reductive aminase mutant and application of the reductive aminase mutant in synthesis of chiral alkylated benzyl propylamine. The invention relates to a mutant protein of carbonyl reductase, which is characterized in that the mutant protein has one or more alternative mutations in sites 85, 87, 128, 134, 162, 197, 219, 234 and 235 on the basis of an amino acid sequence as shown in SEQ ID NO: 1. On the basis of analysis of the crystal structure of reductive aminase M5 in the early stage, stereoselective transformation is carried out through site-specific mutagenesis, combinatorial mutation and the like, an efficient mutant for synthesizing an alkylated benzyl propylamine S-enantiomer is obtained, and a series of chiral amines with the selectivity larger than 99% S are synthesized with different amine donors such as benzyl acetone and benzylamine as substrates. And the method has important significance on industrial green synthesis of the chiral amine.

The present invention belongs to the technical field of coatings, and specifically relates to a sand-walled architectural coating and a preparation method thereof. The sand-walled architectural coating is composed of the following components by mass: 35-50 parts of polyurethane emulsion, 5-8 parts of ZnO-MgO catalyst, 8-12 parts of TCA hybrid, 5-8 parts of diallylamine, 10-15 parts of calcined kaolin, 5-10 parts of crop carbonization, 3-5 parts of coating additives, and 15-20 parts of water; wherein the TCA hybrid is mainly prepared by reacting cardanol glycidyl ether, aminopropyl triethoxysilane and tannic acid. The preparation method of the sand-walled architectural coating of the present invention is simple, and the prepared sand-walled architectural coating has excellent formaldehyde removal performance and good water resistance and stain resistance.

The invention provides a preparation method of bis-[3-(triethoxysilyl) propyl]-disulfide. The preparation method comprises the following steps: S1, under the protection of nitrogen, dropwise adding chloropropene and trichlorosilane into a non-polar solvent, a first catalyst and tripropylamine, reacting at room temperature, taking filtrate, dropwise adding the filtrate into alcohol in a micro-reflux state, reacting, adding a sodium alkoxide / alcohol solution for neutralizing, filtering, and distilling to obtain allyltriethoxysilane; and S2, under ultraviolet light, mixing allyltriethoxysilane, mercaptopropyltriethoxysilane and benzoin dimethyl ether, reacting at room temperature for 2-3 hours, adding sulfur and a second catalyst, carrying out heating reaction, removing low boiling points, cooling, and filtering. According to the preparation method provided by the invention, bis-[3-(triethoxysilyl) propyl]-disulfide is successfully and effectively synthesized, a phase transfer catalyst does not need to be introduced for catalysis, hydrolysis of silane and treatment of saline water are reduced, the yield of single-kettle synthesis is high, and the utilization rate of equipment is high.

The present application relates to a kind of carbon dioxide mineralization method and carbon dioxide mineralization device.The carbon dioxide mineralization method includes the following steps: mixing absorption liquid and industrial solid waste at room temperature, obtain mortar;Make mortar solid-liquid separation, obtain clear liquid and thick slurry;Carbon dioxide in flue gas is absorbed by clear liquid, obtain carbon-rich absorption liquid;Carbon-rich absorption liquid and thick slurry occur mineralization reaction at 180 DEG C-220 DEG C, obtain mineralized slurry;Make mineralized slurry solid-liquid separation, obtain mineralized ash and mineralized clear liquid;Wherein, absorption liquid includes inorganic base and organic base, organic base includes monoethanolamine, diethanolamine, triethanolamine, 3-methylaminopropylamine, N-methyl diethanolamine, piperazine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and 2-amino-2-methyl-1-propanolamine at least two kinds.The method greatly improves CO2 capture rate and CO2 utilization rate, and organic base consumption is less, absorption liquid regeneration energy consumption is low, and overall economy is good.

The utility model discloses a device for recovering di-n-propylamine from hydrochloride wastewater, which comprises a feeding component, a first reaction kettle, a distillation cooling device, a second reaction kettle and a separation receiving component which are sequentially connected through pipelines, and a PH (potential of hydrogen) detection device is arranged in the first reaction kettle. The utility model provides the device for recovering the di-n-propylamine from the hydrochloride wastewater, the steps of feeding, neutralizing, distilling and separating liquid are carried out in sequence to recover the di-n-propylamine from the hydrochloride wastewater, and the pH detector is arranged in the first reaction kettle, so that the use amount of liquid caustic soda can be intuitively controlled, and errors caused by manual sampling and measurement are reduced.

The invention discloses a chlorpromazine-d6 compound as well as hydrochloride, a preparation method and application thereof, and belongs to the technical field of organic synthesis and analysis detection, the chlorpromazine-d6 compound is 3-(2-chloro-10-phenothiazinyl)-N, N-bis (methyl-d3)-1-propylamine, and the preparation method comprises the following steps: taking 2-chlorophenothiazine as a raw material, adding a catalyst, and reacting at the temperature of 60-80 DEG C for 1-2 hours to obtain the chlorpromazine-d6 compound. Carrying out aza-Michael addition and reductive amination reaction to finally obtain chlorpromazine-d6; the obtained chlorpromazine-d6 is subjected to hydrochloric acid acidification, such that chlorpromazine-d6 hydrochloride is obtained; the invention provides a novel deuterated internal standard substance for analysis and detection. In addition, the invention provides a new process for preparing chlorpromazine-d6 and hydrochloride thereof with proprietary intellectual property rights, the preparation method is novel, and has the advantages of simple operation, mild reaction conditions, short process route, high efficiency, low cost, environmental protection and the like; the obtained chlorpromazine-d6 and the hydrochloride thereof have the advantages of high chemical purity, high deuteration rate, high deuterium atom stability and the like.

The invention discloses a preparation method, an intermediate and application of menochromone. The preparation method comprises the following steps: reacting 4-bromopyrrole-2-carboxylic acid with propargylamine to generate 4-bromo-N-propynyl pyrrole-2-formamide; the preparation method comprises the following steps: reacting 4-bromo-N-propinyl pyrrole-2-formamide with pinacol borane to generate a mixture; reacting the mixture with 2-(t-butyloxycarboryl amino)-5-iodo-1H-imidazole to generate (E)-(5-(3-(4-bromo-1H-pyrrole-2-formamido) prop-1-ene-1-yl)-1H-imidazole-2-yl) tert-butyl carbamate, and reacting the (E)-(5-(3-(4-bromo-1H-pyrrole-2-formamido) prop-1-ene-1-yl)-1H-imidazole-2-yl) tert-butyl carbamate with the tert-butyl carbamate; and reacting the (E)-(5-(3-(4-bromo-1H-pyrrole-2-formamido) prop-1-ene-1-yl)-1H-imidazole-2-yl) tert-butyl carbamate with a dioxane hydrochloride solution, so as to generate the menochromone. The invention provides a preparation method of menosin, which is short in synthetic route, simple and convenient to operate, high in product yield and suitable for industrial production.

The invention discloses a photocatalyst as well as preparation and application thereof, and belongs to the field of photocatalytic materials, and a preparation method of a porous photocatalyst based on nitrogen heterocyclic rings comprises the following steps: dispersing a parent unit (nitrogen heterocyclic ring molecules) and 1, 4-diacetylene benzene into N, N-dimethylformamide and diisopropylamine, and then quickly adding the catalyst; reacting at 60 to 180 DEG C for 60 to 180 hours; and after the reaction is finished, carrying out suction filtration, stirring and washing a filter cake with a solvent for 1-4 hours, carrying out suction filtration, repeatedly washing and carrying out suction filtration, and carrying out vacuum drying on the filter cake to obtain the nitrogen heterocyclic ring-based porous photocatalyst. The method provided by the invention has the advantages that the preparation conditions are easy to control, the method is environment-friendly, the process is simple and the operation is convenient, and the obtained material not only has high thermal stability, but also shows excellent photocatalytic performance and can be used for efficiently producing hydrogen peroxide. According to the technology, the production efficiency of hydrogen peroxide is improved, the influence on the environment is reduced, and the requirement for sustainable development of the modern chemical industry is met.

The invention belongs to the technical field of organic synthesis, and discloses a synthesis method of 5-allylamino formyl isophthalic acid. According to the method, 1, 3, 5-benzene tricarboxylic acid, a condensing agent, an activating agent, triethylamine and allylamine are taken as raw materials, after full reaction, thin layer chromatography detection and column chromatography separation are performed, and the 5-allylaminoformyl isophthalic acid is obtained. The obtained product can be used as a high-adaptation functional monomer of a polyhydroxy structure template molecule in a molecular imprinting technology or a ligand in an MOF (Metal Organic Framework) material and the like.

This invention discloses an amphiphilic uniform penetration inhibitor oil displacement agent, its preparation method, its application, and a method for improving oil recovery. The preparation method of the amphiphilic uniform penetration inhibitor oil displacement agent comprises the following steps: In the presence of an initiator and a solvent, sodium styrene sulfonate, acrylamide, N-ethoxymethyl-N-isobutoxymethylacrylamide, and 3-acetamino-N-ethyl-N,N-dimethylpropyl-1-amine undergo a solution polymerization reaction. The molar ratio of sodium styrene sulfonate, acrylamide, N-ethoxymethyl-N-isobutoxymethylacrylamide, and 3-acetamino-N-ethyl-N,N-dimethylpropyl-1-amine is 1:0.01–25:0.01–50:0.01–50. The solution polymerization reaction results in an amphiphilic uniform penetration inhibitor oil displacement agent with a viscosity-average molecular weight of 35 million to 40 million.