39 results about "Methyl butyrate" patented technology

The invention discloses a synthesis method of methyl 4-formylbutyrate, and belongs to the technical field of chemical synthesis, methyl acrylate and nitromethane are subjected to a Michael addition reaction under the action of a catalyst to prepare methyl 4-nitrobutyrate, and the excessive undissolved catalyst can be recycled after being filtered; the method comprises the following steps: under the action of sodium tert-butoxide and potassium permanganate, carrying out hydrolytic oxidation reaction on methyl 4-nitrobutyrate, adding a sodium hydrogen sulfite aqueous solution and a sulfuric acid solution after the reaction is completed, consuming excessive potassium permanganate oxidant, reducing by-products, and carrying out purification treatment to obtain high-purity methyl 4-formyl butyrate. The synthesis method provided by the invention has the advantages of cheap and easily available raw materials, simple operation, easily controllable conditions, high total yield and easy realization of industrial production.

The invention relates to the technical field of analysis and detection, in particular to a method for simultaneously determining beta-hydroxyl beta-methyl butyrate and amino acid in food. Comprising the following steps: S1, taking an amino acid standard substance and calcium beta-hydroxy-beta-methylbutyrate to prepare a mixed standard working solution; taking an internal standard substance to prepare an internal standard solution; s2, mixing a to-be-detected object with the internal standard solution, and performing ultrasonic and centrifugal treatment to obtain a to-be-detected sample; s3, respectively injecting the mixed standard working solution and the sample to be detected into a two-dimensional liquid chromatography-mass spectrometry system for analysis; the two-dimensional liquid chromatogram comprises a first-dimensional liquid chromatogram and a second-dimensional liquid chromatogram. According to the invention, beta-hydroxy beta-methylbutyrate and amino acid can be accurately detected at the same time, and the detection requirements of substances in sports nutritious food are met; the problems that a traditional method is low in step-by-step detection efficiency, complex in pretreatment and insufficient in anti-interference capacity are solved, and a solution is provided for optimization of a sports nourishment formula.

The invention discloses a nutritional composition for osteoporotic fracture recovery and a preparation method thereof, and relates to the field of food / health care products. The composition for osteoporotic fracture recovery is prepared from the following components in parts by weight: 600 to 900 parts of oligomeric collagen peptide, 300 to 600 parts of small molecular oyster peptide, 100 to 300 parts of fish oil extract, 100 to 300 parts of calcium beta-hydroxy-beta-methyl butyrate, 100 to 150 parts of fructo-oligosaccharide, 60 to 90 parts of L-carnitine, 20 to 50 parts of gamma-aminobutyric acid, 10 to 30 parts of calcium aspartate and 3 to 4 parts of taurine. According to the composition for recovering the osteoporotic fracture, provided by the invention, a nutritional and healthy food suitable for recovering the osteoporotic fracture of the old people is formulated aiming at the conditions of constipation, chewing and swallowing conditions, mouth feel, compliance and the like of the osteoporotic fracture of the old people, especially bedridden patients, and various nutrients are combined according to a specific ratio; the traditional Chinese medicine composition is beneficial to accelerating body recovery of patients, preventing muscle attenuation, subsequently improving sclerotin and muscle strength for a long time, and reducing the risk of cardiovascular diseases at the same time.

The invention provides an organic semiconductor powder-methyl fullerene modified spraying type polyurea material and a preparation method thereof, and relates to the technical field of polyurea materials. The preparation method comprises the following steps: adding a [6, 6]-phenyl-C61-methyl butyrate solution into a polyurea blend, carrying out an ultrasonic reaction, coating a mold with a reaction solution after the reaction is finished, and drying to obtain the organic semiconductor powder-methyl fullerene modified spraying type polyurea material. Compared with a traditional insulating sheath, the prepared spraying type polyurea material has better thermal performance and electrical performance, insulation protection difficulty caused by cross arm appearance difference is effectively eliminated, and the maintenance cost caused by bird damage and foreign matter is reduced. The spraying type polyurea material has the advantages that the curing time is short, dripping and hanging objects cannot be formed to influence the physical properties, meanwhile, the material waste can be effectively reduced, and the spraying type polyurea material has higher economical efficiency and wider application scenes.

The application relates to a method for continuously preparing imidacloprid intermediate 3-methyl-2-(4-morpholinyl)cyclobutyl acid methyl ester, and the specific steps are as follows: raw material morpholinyl propylene and methyl acrylate are respectively introduced into a preheater, then the preheated raw materials are pumped into a micro-channel reactor for reaction, after the reaction is completed, the materials are discharged from the micro-channel reactor outlet into a reaction kettle, reaction is carried out, then the cyclization liquid obtained in the reaction kettle is subjected to light removal in a light removal tower, 3-methyl-2-(4-morpholinyl)cyclobutyl acid methyl ester after light removal is collected from the tower kettle of the light removal tower, the 3-methyl-2-(4-morpholinyl)cyclobutyl acid methyl ester is introduced into a pentyl ester synthesis process, and the recovered methyl acrylate collected from the top of the light removal tower is reused in the reaction kettle to participate in the ripening reaction. The application has the advantages of high product purity, low raw material unit consumption, good safety, low labor cost and the like.

The invention relates to the technical field of flavors and fragrances, in particular to an ester compound with grass sweet fragrance, a preparation method of the ester compound and a grass sweet fragrance base. The ester compound with the grass sweet fragrance has the following structural formula: the ester compound with the grass sweet fragrance prepared by the invention is 4-(5-bromo-1H-indene-3-yl) methyl butyrate, and the compound has special aromatic fragrance and violet fragrance, and is elegant in fragrance and long in fragrance retention time. The preparation method of the compound is simple in process, convenient to operate and control, high in production efficiency and suitable for industrial production. Compared with the flower and plant sweet fragrance base without the compound, the flower and plant sweet fragrance base prepared by the invention is added with the ester compound with the grass sweet fragrance, so that the flower and plant sweet fragrance base has more prominent grass sweet fragrance, special grass fragrance accompanied by fresh and sweet fragrance and stronger violet flower fragrance note, and the fragrance quality of the base is obviously improved.

The invention relates to a mycobacterium hydrolase and application thereof in preparation of flavors and fragrances, and belongs to the fields of enzyme engineering and mining and application of new enzyme resources. The hydrolase comes from mycobacteria, and the amino acid sequence of the hydrolase is shown as SEQ ID No: 2; the hydrolase MdHDL disclosed by the invention has relatively high catalytic activity and substrate concentration tolerance, and can efficiently utilize benzyl alcohol or phenethyl alcohol to react with p-nitrophenyl methyl acetate pNPA, p-nitrophenyl methyl butyrate pNPB or p-nitrophenyl methyl caprylate pNPO to synthesize essence and perfume substances with different flavors; the method is suitable for preparing flower fragrance and fruit fragrance type flavors and fragrances such as jasmine flower fragrance, rose fragrance, pineapple fragrance, banana fragrance and apricot fragrance by an enzyme method, has obvious industrial production potential, and provides technical basis and method guidance for preparing the flower fragrance and fruit fragrance type flavors and fragrances by the enzyme method.

The invention discloses a fluorescent probe for recognizing lithium ions and a preparation method and application thereof.The method comprises the steps that rhodamine B, HATU and methyl 3-amino-3-methyl-1-butyrate are mixed and subjected to a first-step reaction, a first reactant is obtained, the first reactant, ethyl alcohol and sodium hydroxide are mixed and subjected to a second-step reaction, a second reactant is obtained and subjected to a third-step reaction, and the fluorescent probe for recognizing the lithium ions is obtained. And mixing the second reactant, crown ether, EDCI and HOBT, and carrying out a third-step reaction to obtain the fluorescent probe. According to the method, lithium ions in a complex environment can be efficiently recognized, and raw material waste and resource loss in the production process are avoided.

The invention belongs to the technical field of lubricating oil, and particularly relates to a reinforcing agent composition for improving the friction performance of No.8 hydraulic transmission oil and application. The reinforcing agent composition is prepared from the following raw materials: ethyl pyrimiphos, 2-amino-2-oxy-1-(3-phenoxy phenyl) ethyl] 2-(4-dodecylbenzene)-3-methyl butyrate, a dispersing agent and base oil A. The invention further discloses a preparation method of the reinforcing agent composition. According to the invention, a compound system of ethylpyrimidinphosphorus and 2-amino-2-oxy-1-(3-phenoxy phenyl) ethyl] 2-(4-dodecyl-phenyl)-3-methylbutyrate is adopted, so that the friction performance is excellent, the friction performance of the hydraulic transmission oil 8 # can be improved, the test requirements of an Allison C-4 paper-based friction bench are met, and the friction performance of the hydraulic transmission oil 8 # is improved. And the device can adapt to different hydraulic transmission oil formula systems.

The invention discloses a preparation method of 4-amino-6-tert-butyl-3-sulfydryl-1, 2, 4-triazine-5 (4H)-ketone and a preparation method of the 4-amino-6-tert-butyl-3-sulfydryl-1, 2, 4-triazine-5 (4H) The preparation method comprises the following steps: dissolving 3, 3-dimethyl-2-oxobutyric acid methyl ester in a solvent, adjusting the pH value to be acidic, then adding thiocarbazide and DMAP (Dimethylamino Phosphate), carrying out a heating reaction, and after the reaction is finished, carrying out filtering, solid separation, washing and vacuum drying in sequence to prepare 4-amino-6-tert-butyl-3-sulfydryl-1, 2, 4-triazine-5 (4H)-ketone. The extraction solvents used in all the steps are the same, the reaction solvent is mainly water and can be removed through anhydrous sodium sulfate, and when the reaction solvent is alcohol, the alcohol can be removed through rotary evaporation. Therefore, the discharge amount of three wastes in the reaction is small, the potential safety hazard is small, and the product yield and purity are high; raw material cost is low, and industrial production is facilitated.

The present invention relates to a synergistic composition comprising Astaxanthin, Calcium Hydroxy Methyl Butyrate (CaHMB) and Leucine with pharmaceutically acceptable additives and excipients for the promotion of muscle health. The present invention also provides a process for the preparation of the said synergistic composition. The invention provides an effective and synergistic composition to counteract sarcopenia, enhancing muscle strength, mobility, and quality of life in affected individuals.

The invention relates to the technical field of extraction, and in particular to a white orchid flower cell extract and a supercritical extraction method, comprising the following steps: (1) selecting white orchid flowers for standby use; (2) obtaining crushed materials; mixing the crushed materials with modified nanomaterials, and performing mixed grinding treatment; (3) drying the extractant carbon dioxide gas; (4) liquefying the carbon dioxide, and pressurizing the liquid carbon dioxide to a supercritical state; (5) obtaining a supercritical carbon dioxide fluid containing white orchid flower cell fluid; and (6) introducing the supercritical carbon dioxide fluid containing the white orchid flower cell fluid into a separation kettle, and completing extraction by decompression separation. The white orchid flower cell extract prepared by the invention is a natural product extracted from white orchid flowers and having multiple functions, and contains multiple chemical components, mainly including: linalool, 2-methylbutyric acid methyl ester, 2-methylbutyric acid, eugenol methyl ether, ethylene oxide methanol and other active ingredients.

The invention discloses a drinkable composite composition for deeply nourishing facial tissues and a preparation method of the drinkable composite composition, and relates to the field of drinks, in particular to a collagen peptide drink. 30 mL of the beverage contains the following components in parts by mass: 2.5 to 6 g of collagen peptide, 6.9 to 10.4 g of collagen tripeptide liquid, 0.001 to 0.5 g of glycosaminoglycan, 3 to 5 g of composite concentrated fruit juice, 0.1 to 1 g of calcium beta-hydroxy-beta-methyl butyrate (CaHMB), 0.003 to 0.03 g of an antioxidant and 0.01 to 0.05 g of an acidity regulator. According to the collagen peptide composite beverage provided by the invention, the functional collagen peptide and the collagen tripeptide are added, and the functional peptide has a relatively good supplement effect on corium layer collagen, so that the collagen peptide composite beverage has a good improvement effect on skin elasticity; glycosaminoglycan has a good effect on moisture absorption of a corium layer, so that the moisture content of skin is increased, and by adding calcium beta-hydroxy-beta-methylbutyrate (CaHMB), the effect of promoting synthesis of muscles is achieved, so that the muscle mass of the face is increased, and the compactness of the face is maintained.

The application discloses a local high-concentration lithium metal battery electrolyte and a preparation method and application thereof. The electrolyte comprises a lithium salt, an organic solvent, an additive and a diluent; the organic solvent comprises at least one of methyl formate, methyl acetate, methyl propionate, methyl butyrate, ethyl propionate, ethyl acetate, ethyl butyrate, methyl trifluoroacetate and ethyl trifluoroacetate; the additive comprises at least one of fluoroethylene carbonate, lithium difluorobisoxalate phosphate and lithium difluorophosphate; and the diluent is a fluorine-containing ether compound. The local high-concentration electrolyte has the advantages of high-voltage resistance of high-concentration electrolyte and inhibition of corrosion of sulfonimide-based electrolyte on aluminum foil, meanwhile, the problems of high viscosity, low conductivity and poor impregnation with a separator of high-concentration electrolyte are overcome, the cycle performance and low-temperature performance of the lithium metal battery are significantly improved, and the local high-concentration electrolyte is particularly suitable for application in a low-temperature high-voltage lithium battery. The preparation method is simple, the cost is low, and the method is suitable for industrial production.

The invention relates to cigarette flavor with passion fruit flavor, adsorption particles and application of the cigarette flavor and the adsorption particles in cigarettes. The cigarette flavor is prepared from passion fruit peel essential oil, hexyl hexanoate, benzaldehyde, methyl farnesyl butyrate, geranyl acetone, nerolidol and beta-sweet bisabolol. Six specific spice components are combined to form a mixed spice, compared with single passion fruit peel essential oil serving as a spice, the components in the spice are matched with one another and have a synergistic effect, the passion fruit flavor can be provided during cigarette smoking, the fruit aroma characteristic of cigarettes is obviously improved, the aroma coordination is good, and the flavor of the cigarettes is greatly improved. The smoke characteristic of the cigarette can be improved; and after the spice is used for slow release treatment, the stability of the flavor of the passion fruit can be maintained, and the flavor of the spice cannot be changed due to the change of the original proportion of the components in the slow release process, so that the stability of sensory expression is realized, and the sensory quality of the tobacco product is comprehensively improved.

The invention discloses a method and a process device for preparing acetic acid through catalysis of methyl acetate, and in a reaction system containing a catalyst, the methyl acetate is contacted and reacted with carbon monoxide and water to prepare the acetic acid; the catalyst contains an active element M, and M is Rh and / or Ir. According to the method, methyl acetate reacts with carbon monoxide and water under metal catalysis under the action of an Rh or Ir catalyst to be converted into acetic acid and corresponding acid. Different from a traditional concentrated sulfuric acid or benzenesulfonic acid resin catalyzed methyl acetate hydrolysis catalytic reaction process, the invention creatively provides a method for converting methyl acetate into acetic acid in a high-activity and high-selectivity manner through reaction of metal catalyzed methyl acetate with carbon monoxide and water under the action of an Rh or Ir catalyst; the catalytic activity is more than 10 times that of concentrated sulfuric acid or benzenesulfonic acid resin for catalyzing the hydrolysis reaction of methyl acetate to prepare acetic acid, and the method can also be applied to other methyl ester compounds, such as methyl formate, methyl propionate, methyl butyrate and methyl benzoate.

The invention discloses durian essence and a preparation method thereof, and the durian essence is prepared from the following raw materials: 2.0 to 3.8 percent of methyl 2-methylbutyrate, 1.6 to 3.4 percent of ethyl 2-methylbutyrate, 0.8 to 1.6 percent of 3-mercaptohexyl acetate, 0.4 to 1.2 percent of dipropyl disulfide, 0.01 to 0.1 percent of 4-mercapto-4-methyl-2-pentanone, 0.8 to 2.0 percent of citral, 1.5 to 3.0 percent of hops tincture, 1.0 to 2.2 percent of 2, 6-dimethyl-5-heptenal and 80.0 to 88.0 percent of solvent. According to the durian essence, a certain amount of acetic acid 3-mercaptohexyl ester and citral are added into common durian essence components such as methyl 2-methylbutyrate and dipropyl disulfide, and on the basis that the storage stability of the durian essence is guaranteed, the pure and full aroma profile of durian can be highly restored.

The invention relates to the field of food, in particular to calcium beta-hydroxy-beta-methyl butyrate nutrition protein powder and a preparation method thereof, and the calcium beta-hydroxy-beta-methyl butyrate nutrition protein powder is prepared from the following components in parts by mass: 6-7 parts of microcapsules, 10-12 parts of flavor protein particles, 0.5-0.7 part of a composite anti-caking flavor agent, 65-75 parts of whey protein isolate, 10-12 parts of resistant dextrin and 0.6-0.7 part of food-grade zeolite. According to the invention, through multi-structure design and process innovation, core functional components are processed by adopting a composite embedding technology, taste experience is optimized by applying a flavor anchoring technology, and uniformity and stability of the product are ensured by utilizing a stepped mixing technology. The method effectively solves the industrial common problems that functional components are poor in taste, prone to caking, uneven in mixing and the like, efficient utilization of nutritional components is achieved, the taste is remarkably improved, the product stability is comprehensively optimized, and the good market popularization value and application prospects are achieved.

The present invention improves the polymerization rate. The present invention provides a composition which contains methyl methacrylate, methyl isobutyrate and methyl propionate, wherein: the content of the methyl methacrylate is 90% by mass or more; and at least one requirement that is selected from the group consisting of the requirements (1) and (2) described below is satisfied. Requirement (1): The concentration of the methyl isobutyrate is from 20 ppm by mass to 3,000 ppm by mass, and the concentration of the methyl propionate is from 250 ppm by mass to 3,000 ppm by mass. Requirement (2): The concentration of the methyl isobutyrate is from 350 ppm by mass to 3,000 ppm by mass, and the concentration of the methyl propionate is from 5 ppm by mass to 250 ppm by mass.

The present invention relates to compounds of Formula (I) or an agronomically acceptable stereoisomers and / or salt of said compounds wherein Q, X, Y, Z, R1, R5, R6 and n are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I) and to the use of compounds of Formula (I) for controlling weeds, in particular in crops of useful plants.

The invention belongs to the technical field of preparation of chemical intermediates, and particularly relates to a method for recovering N-hydroxymethyl phthalimide from 4-AA key intermediate residues. Comprising the following steps: (1) distillation: filtering and distilling toluene mother liquor generated in preparation of 4-AA key intermediate 2-(N-phthalimido methyl)-3-oxobutyric acid methyl ester to obtain a toluene solvent and concentrated residues, and recycling the toluene solvent; (2) hydrolysis: a hydrolysis reagent is added into the concentrated residues, the weight ratio of the concentrated residues to the hydrolysis reagent is 1: (1.1-4), the temperature is increased to 30-100 DEG C, heat preservation hydrolysis is conducted for 1-10 h under stirring, and a hydrolysis product is obtained; and (3) recovery: cooling the hydrolysis product, crystallizing, filtering, and washing with water to obtain the N-hydroxymethyl phthalimide. According to the method, effective components in the hazardous waste can be recovered, so that the discharge of the hazardous waste is reduced, and the hazardous waste treatment cost is reduced.

The invention provides a high-transparency sulfone polymer as well as a preparation method and application thereof, the sulfone polymer comprises ester impurities with the mass percent of m, m is more than 0 and less than 0.05%, and m is more than 0 and less than 0.05%. The ester impurities are selected from one or more of methyl acetate, methyl formate, methyl N-methylbutyrate, methyl N-ethylbutyrate, ethyl acetate, ethyl formate, ethyl N-methylbutyrate and ethyl N-ethylbutyrate. The sulfone polymer provided by the invention has higher transparency.

The application relates to the technical field of edible essence. The application discloses a yogurt essence and a preparation method thereof. The raw material composition of the yogurt essence comprises ethyl maltol, vanillin, butanedione, acetic acid, ethyl acetate, propionic acid, 2,3-pentanedione, 3-hydroxy-2-butanone, butyric acid, ethyl butyrate, isoamyl acetate, methyl thio butyrate, hexanoic acid, ethyl hexanoate, 10% furanone, isoamyl butyrate, ethyl levulinate, linalool, p-cymene, 4-terpinenol, nerol, citral, geraniol, neryl acetate, geranyl acetate, D-limonene, lemon oil, distilled white lemon oil, sweet orange oil, glycerol triacetate, rosemary extract and bitter gourd extract. The yogurt essence prepared by the application has a flavor closer to real yogurt, good thermal stability and good flavor persistence.

The application discloses a method for preventing and controlling real fly pests by using repellent and dual sex attractant, wherein the repellent is prepared from soil chenopodium oil and castor oil as active ingredients, and the dual sex attractant is prepared by mixing 100 mu g / ml of N-(3-methylbutyl) formamide, butyl acetate, methyl butyrate, anise aldehyde, beta-caryophyllene and decanal solution with the same mass. The natural plant essential oil is used as the repellent, the types of the natural plant essential oil are various, the structure of the natural plant essential oil is complex, and the repellent has better avoidance effect on the real fly; the dual sex attractant has various structures of substances, and has a wide range of target site effects, can specifically attract male insects and specifically attract female insects, and has a female and male dual attraction compound, so that the prevention and control method of the application can maximize the prevention and control effect on the real fly, and has strong avoidance and attraction effects on the real fly pests, and has the characteristics of low cost, environmental protection, high efficiency, no pesticide residue and the like, and has a wide application prospect.

The application discloses a preparation method of indobufen, and belongs to the technical field of drug synthesis process, wherein the preparation method is as follows: dissolving ortho-carboxyl benzamide in an organic solvent, cooling to 2-8 DEG C, adding a reducing agent, and carrying out incubation reaction, post-treatment, and obtaining compound I; mixing the organic solvent, a catalyst and the compound I, carrying out reflux water separation reaction, post-treatment, and obtaining compound II; dissolving the compound II in an organic solvent, adding an alkaline reagent, heating to 40-50 DEG C, dropwise adding 2-(4-bromophenyl) butyric acid methyl ester, then carrying out reflux reaction, post-treatment, and obtaining compound III; dissolving the compound III in an organic solvent, adjusting the pH to 10.5-11.5, stirring and reacting at 40-50 DEG C, post-treatment, and obtaining indobufen. The preparation method improves the safety of preparation, and also improves the quality and yield of the product indobufen.

The invention discloses a medical water-absorbing composite material and a preparation method thereof, and relates to the technical field of non-woven fabrics. The preparation method comprises the following steps: by taking bismuth nitrate, butyl titanate and the like as raw materials, performing electrospinning and gradient calcining treatment to form piezoelectric ceramic non-woven fabric; then glycolic acid and 2-amino-4-hydroxy-1, 4-succinic acid are polymerized to form a polyester compound, the composite material is effectively prevented from being adhered to a wound, the polyester compound serves as a wall material, chitosan serves as a core material and is sprayed and deposited on the surface of non-woven fabric, when the super absorbent resin on the other side absorbs water and expands, the microcapsules and the piezoelectric ceramic are extruded at the same time, the chitosan is released, and the wound healing effect is achieved. Oxygen is generated to promote wound healing; then modifying a polypropylene non-woven fabric by utilizing methyl 2-hydroxybutyrate, hydrazine hydrate, 1-(dimethylamino)-2-methyl-3-pentanone and 4-((6-bromohexyl) oxy)-2-hydroxybenzaldehyde to form an antibacterial non-woven fabric, and attaching the antibacterial non-woven fabric to the surface of the super absorbent resin. The medical water-absorbing composite material prepared by the invention has the effects of resisting bacteria and promoting wound healing.

The invention relates to the technical field of hydraulic transmission oil, in particular to a lubricant, a preparation method of the lubricant and application of the lubricant in hydraulic transmission oil. The lubricant comprises the following components: 6-fluoro-7-piperazine-1-methyl-4-oxo-[1, 3] thiazacyclo [3, 2-a] quinoline-3-carboxylic acid ethyl ester, alpha-cyano-3-phenoxybenzyl (R, S)-2-(4-chlorphenyl)-3-methyl butyrate, N, N-dimethylformamide, mono-succinimide and class I base oil, and is characterized in that the lubricant is prepared from the following components: 1-methyl-4-oxo-[1, 3] thiazacyclo [3, 2-a] quinoline-3-carboxylic acid ethyl ester, alpha-cyano-3-phenoxybenzyl (R, S)-2-(4-chlorphenyl)-3-methyl butyrate, 2- The liquid mixture can be stably dissolved in hydrodynamic transmission oil, the problem of compatibility between 6-fluoro-7-piperazine-1-methyl-4-oxo-[1, 3] sulfur nitrogen heterocyclic [3, 2-a] quinoline-3-carboxylic acid ethyl ester and 8 # hydrodynamic transmission oil is effectively solved, the liquid mixture accounting for 1-2% of the total weight is added into the 8 # hydrodynamic transmission oil, and the compatibility between 6-fluoro-7-piperazine-1-methyl-4-oxo-[1, 3] sulfur nitrogen heterocyclic [3, 2-a] quinoline-3-carboxylic acid ethyl ester and 8 # hydrodynamic transmission oil is improved. The friction performance of the 8 # hydraulic transmission oil can be improved, ingredients are saved, and the process method is simple.

The invention relates to pyrazolopyrimidine-5-amine compounds as well as a preparation method and application thereof, and belongs to the technical field of compounds and medicines. The preparation method comprises the following steps: protecting 5 # amino of pyrazolo [1, 5-a] pyrimidine-5-amine by adopting butyric acid methyl ester amide with large steric hindrance, enabling an electrophilic reagent (such as a halogenating agent) to highly selectively attack a 7 # site with small steric hindrance by utilizing a space shielding effect so as to obtain a key 7 # halogenated intermediate, and modifying the 5 # amino by virtue of a hydrolysis reaction, so that the pyrazolo [1, 5-a] pyrimidine-5-amine is obtained. According to the pyrazolo [1, 5-a] pyrimidine compound, the 5 # site and the 7 # site of the pyrazolo [1, 5-a] pyrimidine are accurately substituted, the 5 # site amino substituted pyrazolo [1, 5-a] pyrimidine compound is obtained, and the compound has better anti-tumor activity, provides a new drug choice for tumor treatment and enriches an anti-tumor drug library.

The application discloses a high-voltage wide-temperature electrolyte suitable for ternary lithium metal batteries, and particularly relates to the technical field of lithium metal battery electrolytes. The technical problems of the traditional electrolyte, such as easy solidification at low temperature, ion transmission obstruction, severe side reaction at high temperature and high voltage, short cycle life and insufficient wide-temperature compatibility, are solved. The electrolyte is constructed by a composite solvent system of methyl butyrate, methyl heptafluorobutyrate and fluorinated ethylene carbonate, and a composite lithium salt composed of LiBF4, LiDFOB, LiPF6 and LiFSI, and a film-forming additive of 1,3,6-hexanetricarbonitrile and vinyl sulfite, so as to form a local high-concentration electrolyte system and a positive and negative electrode double-interface stabilization protection mechanism. The electrolyte is suitable for 4.7V high-voltage ternary cathodes, has excellent rate performance and cycle stability in a wide temperature range of-40 DEG C to 45 DEG C, has good flame-retardant safety, is compatible with the existing industrial production line in the preparation process, and has outstanding industrialization landing value.

The invention discloses a preparation method and production equipment of a perovskite solar cell absorption layer. The production equipment comprises a workbench; the movable carrying device is mounted on the workbench in a sliding manner, and the movable carrying device is used for carrying and transporting a base; an inkjet printing device; the preparation method comprises the following steps of: taking formamidine tin iodide, cesium tin iodide and 6, 6-phenyl-C61-methyl butyrate as a precursor mixture, adding a solvent, and stirring to obtain a precursor solution; the method comprises the following steps: cleaning a substrate by using ultrasonic waves to remove surface stains, washing by using deionized water, and drying; coating the precursor solution obtained in the step S1 on the substrate obtained in the step S2 in an ink-jet printing manner; and S3, drying the coated substrate in the step S3 to remove moisture, and annealing to obtain the perovskite solar cell absorption layer. And the separation efficiency and the directional transmission capability of charges are improved, so that the photoelectric conversion efficiency of the perovskite solar cell is remarkably improved.