33 results about "Naphthylamine" patented technology

The application discloses a 5-position linked naphthalene diisocyanate, a halogenated naphthylamine or a phenolic hydroxyl naphthylamine, which is subjected to an acylation reaction, then subjected to an Ullmann coupling reaction in the presence of a ligand and an inorganic base and under the protection of an inert gas by using a metal or a salt thereof as a catalyst, subjected to amide hydrolysis, and then subjected to a carbonacylation reaction with a carbonacylation reagent to obtain the 5-position linked naphthalene diisocyanate. The application further provides a synthesis method of the 5-position linked naphthalene diisocyanate. The application further provides an application of the 5-position linked naphthalene diisocyanate in preparation of urethane rubber and elastomer, urethane fiber, cast urethane rubber, urethane emulsion and paint, urethane adhesive, shock-absorbing foam material, energy-absorbing foam material and damping foam material. The polylinked naphthalene urethane prepared by using the 5-position linked naphthalene diisocyanate has high cohesive energy and impact modulus, and can be widely applied to high dynamic load and heat-resistant occasions.

The present application provides thiamine compounds shown in formula (I) and application thereof. The thiamine compounds of the present application can be used for preparing polyolefin antioxidants. The thiamine compounds of the present application introduce sulfide bonds in aryl secondary amine, so that the antioxidant contains naphthylamine groups of primary antioxidants and sulfide groups of auxiliary antioxidants, which not only can terminate free radicals by providing hydrogen protons, but also can react with hydroperoxides, so as to achieve the dual effects of primary and auxiliary antioxidants, and thus the antioxidant effect is significantly enhanced.

The invention provides a preparation method of a novel chiral thiourea / phosphine bifunctional organic catalyst with a cis-cyclic 1, 2-phosphinamine skeleton and application of the novel chiral thiourea / phosphine bifunctional organic catalyst in an asymmetric catalytic reaction. The chiral organic catalyst is prepared by taking cis chiral 2-(diphenylphosphine)-1, 2, 3, 4-tetrahydro-1-naphthylamine and an isothiocyanate compound as raw materials through a one-step reaction under a mild condition. The chiral thiourea / phosphine bifunctional organic catalyst is simple to prepare and stable in property, and shows excellent catalytic activity and stereoselectivity in an asymmetric hydrosilylation reaction of o-amido benzophenone.

The application discloses a hydrogen fuel engine oil composite additive composition, which comprises 3.0-5.0% high-alkali-value magnesium sulfonate, 12.0-20.0% low-alkali-value calcium sulfonate, 3.0-4.0% high-alkali-value calcium sulfide alkyl phenol, 2.0-5.0% amine type antioxidant, 2.0-5.0% phenol type antioxidant, 2.0-5.0% alpha-naphthylamine, 1.5-3.0% dibutyl dithiocarbamic acid ester, 1.5-3.0% anti-wear agent, 0.2-0.5% fatty amide, and the rest is ashless dispersant. The application further discloses a hydrogen fuel engine oil composition, which comprises 14.4-15.5% composite additive composition, 7.0-9.0% tackifier, 0.2-0.5% pour point depressant, and the rest is base oil. The composite additive improves the demulsification performance of the hydrogen fuel engine oil under high-temperature and high-pressure conditions, and further improves the water separation property and other comprehensive use performances of the oil product.

The present application discloses use of small-molecule compound having naphthalamine structure. In the present invention, it was found for first time that the general formula I compound can be used to treat diseases associated with kidney injury and diseases associated with mitophagy, and is expected to be an effective special drug for treating the diseases associated with mitophagy and kidney-associated diseases, especially chronic kidney disease.

The invention discloses an ashless antioxidant composition applicable to an ultrahigh-temperature lubricating environment, lubricating oil and application of the ashless antioxidant composition. The ashless antioxidant composition is prepared from the following components in parts by mass: 2.5 to 5 parts of dialkyl diphenylamine, 2.5 to 7.5 parts of N-phenyl-alpha-naphthylamine, 0 to 2.5 parts of phenolic antioxidant and 0 to 2.5 parts of amine antioxidant. The ashless antioxidant composition does not contain metal elements, is an ashless antioxidant system, has a good antioxidant effect, can effectively control the viscosity change and acid value increase of an oil product in an ultrahigh-temperature environment of 220-300 DEG C, has an obvious inhibition effect on the generation of high-temperature sediments, and can meet the requirement of an aero-engine on the antioxidant performance of lubricating oil in the ultrahigh-temperature environment.

The invention provides an agent composition for improving the recovery rate of copper, nickel, iridium and rhodium in copper-nickel symbiotic sulfide ore, and the agent composition comprises the following raw materials in parts by mass: 85-90 parts of sodium diethyldithiocarbamate, 1-10 parts of mercaptoacetic acid-2-naphthylamine, 1-5 parts of furanformyl dioxime and 1-10 parts of dialkyl dithio-oxadiamide. The invention also provides a use method of the medicament composition. The use method comprises the step of adding the sodium diethyldithiocarbamate, the mercaptoacetic acid-2-naphthylamine, the furanformyl dioxime and the dialkyl dithio-oxadiamide at different time. The raw materials of the medicament provided by the invention are synergistically used, and recovery of independent iridium and rhodium minerals and iridium and rhodium minerals closely linked with (or wrapped by fine nickel sulfide and copper) fine nickel sulfide and copper in ores is considered.

The application provides a compound of formula (I), the bond energy between atoms is high, the compound has good thermal stability, and the solid-state stacking between molecules is favorable, and the energy level between adjacent layers is suitable, which is favorable for the injection and migration of excitons. When used as an electron transport material, the compound can effectively reduce the driving voltage of an organic electroluminescent device, improve the light-emitting efficiency of the organic electroluminescent device, and prolong the service life of the organic electroluminescent device. The application also provides an organic electroluminescent device and a display device comprising the compound of formula (I).

The invention relates to the technical field of chemical component detection, and particularly discloses fluorescent test paper, a fluorescence analysis method and a fluorescence analysis device for visual online detection of soil nitrate nitrogen. According to the test paper, nitrate nitrogen is reduced into nitrite nitrogen by adopting zinc powder and a cadmium chloride solution, and then the nitrite nitrogen is dropwise added to fluorescent test paper prepared by soaking a mixed solution of para aminobenzoic acid, N-phenyl-1-naphthylamine and hydrochloric acid; under an acidic condition, nitrite nitrogen and para aminobenzoic acid generate diazonium salt, and then the diazonium salt reacts with N-phenyl-1-naphthylamine to form an azo compound, so that the original blue fluorescence on the test paper is gradually weakened along with the increase of the concentration of the nitrate nitrogen. According to the method, high-sensitivity and specific recognition of nitrate nitrogen is realized. And in combination with color identification and data analysis software of a smart phone, a portable and low-cost field detection system is constructed, and an efficient and practical new technical means is provided for visual quantitative detection of soil nitrate nitrogen.

The invention relates to the technical field of heat treatment quenching media, in particular to quenching oil special for 05Cr15Ni5Cu4Nb precipitation hardening stainless steel and a preparation method and application of the quenching oil. The special quenching oil for the 05Cr15Ni5Cu4Nb precipitation hardening stainless steel is prepared from the following components in percentage by mass: 88 to 95 percent of base oil combination, 1.5 to 5.0 percent of quick cooling agent, 2.0 to 3.5 percent of antioxidant and 1.0 to 4.0 percent of dispersing agent, the base oil composition is a mixture composed of refined hydrogenated mineral oil 150N and refined hydrogenated mineral oil 500N; the quick cooling agent is polyisobutene; the antioxidant is a combination of phenyl-alpha-naphthylamine and dialkyl dithiophosphate carbamate, or a combination of phenyl-alpha-naphthylamine and dilauryl thiodipropionate, and the antioxidant is a combination of phenyl-alpha-naphthylamine and dilauryl thiodipropionate. Through base oil compounding and rapid cooling agent dosage optimization, the step quenching effect of high-temperature rapid cooling and low-temperature slow cooling is achieved, martensite transformation of a 05Cr15Ni5Cu4Nb precipitation hardening stainless steel workpiece is stably completed near the Ms point, and a uniform and fine lath martensite structure is provided for subsequent aging strengthening.

The application belongs to the technical field of organic synthesis, and particularly relates to a method for synthesizing 1-(2,4-dimethylphenyl)thio-N-benzyl-2-naphthylamine by a continuous flow light-heat integrated method. The method is performed in a micro-channel reaction device provided with light and heat. N-benzyl-2-naphthylamine, 2,2',4,4'-tetramethyl diphenyl disulfide and a catalyst sodium iodide are dissolved in acetonitrile solvent to obtain a reaction solution. A blue light is used as a light source of a reaction module, and the temperature is adjusted to 25-60 DEG C. Air or oxygen is introduced into the reaction solution, and magnetic stirring is performed. Then, the gas-liquid mixed reaction solution is input into the reaction module through a peristaltic pump to obtain 1-(2,4-dimethylphenyl)thio-N-benzyl-2-naphthylamine. The application creatively uses the continuous flow light-heat integrated reaction technology to synthesize 1-(2,4-dimethylphenyl)thio-N-benzyl-2-naphthylamine, greatly improves the reaction efficiency, shortens the reaction time, improves the safety and controllability of the reaction, solves the amplification effect of the conventional reaction, and provides a reaction technology without bottleneck amplification for the synthesis of the compound.

The invention discloses a preparation method of an azo reactive dye, which comprises the following steps: reacting cyanuric chloride with sodium 2, 5-diaminobenzene sulfonate to obtain a first condensate, diazotizing the first condensate, performing acidic coupling on the first condensate and acetyl J acid, performing alkaline coupling on the first condensate and a diazo solution of 6-beta-ethyl sulfuryl sulfate-2-naphthylamine-1-sulfonic acid, and finally performing secondary condensation on the second condensate and nicotinic acid to obtain the azo reactive dye. Reacting to obtain azo reactive dye primary pulp, wherein the structure of the dye is shown in the specification; the prepared dye is bright in color, excellent in solubility, high in storage stability, good in lifting power and good in fixation rate and color fastness.

The invention belongs to the technical field of organic synthesis, and particularly relates to a chiral silatetrahydro-1-naphthylamine compound and a synthesis method thereof. The synthesis method of the chiral silatetrahydro-1-naphthylamine compound comprises the following steps: in an inert atmosphere, mixing a palladium catalyst, a chiral phosphine ligand and an organic solvent, pre-stirring, then adding N-allenamine, cooling to a reaction temperature, adding benzosilacyclobutane, carrying out a reaction, and after the reaction is finished, carrying out separation and purification to obtain the chiral silatetrahydro-1-naphthylamine compound. The chiral silicon hybrid tetrahydro-1-naphthylamine compound is obtained. The raw materials benzo-silazane and N-allenamine can be prepared by a simple method, and the method has the advantages of high selectivity, high yield, mild conditions, wide substrate range, simplicity and convenience in operation and the like.

This invention provides a method for determining chloronaphthylamine in water. By optimizing the wavelength, mobile phase, and flow rate, and using a direct injection liquid chromatograph (with an FLD detector), a novel method for simultaneously determining two nitrogen-containing disinfection byproducts, chloronaphthylamine, in water (both drinking water and wastewater) has been established. This method is simple, rapid, accurate, highly sensitive, and reproducible, and is suitable for the quantitative detection of 2-chloro-1-naphthylamine and 4-chloro-1-naphthylamine in drinking water and wastewater.

The invention provides a banned azo dye wool fabric quality control product as well as a preparation method and application thereof. The synthetic azo dye is adopted to prepare the wool fabric standard quality control product capable of generating the determined 2-naphthylamine content through reduction. The uniformity and the stability of the prepared quality control product can meet the requirements of CNASGL03 < Proficiency Verification Sample Uniformity and Stability Evaluation Guideline >.

This invention relates to a method for preparing a water-soluble yellow reactive dye, comprising: adding water and ice to 2-naphthylamine-3,6,8-trisulfonic acid and slurrying, followed by a diazotization reaction to obtain a diazo material; adding water and ice to m-ureidoaniline, adding an alkali agent, and stirring to dissolve and obtain a clear m-ureidoaniline solution; adding the diazo material to the clear m-ureidoaniline solution and performing a coupling reaction at a controlled temperature to obtain a yellow base; adding water and ice to cyanuric chloride, adding dispersant CS and dispersant MF and slurrying, then adding sodium 2,4-diaminobenzenesulfonate and mixing and slurrying, with staged heating and pH adjustment to react and obtain a bicondensed material; adding the yellow base to the bicondensed material, heating and adjusting the pH, and performing a controlled reaction to obtain a dye slurry. The preparation method provided by this invention features high chroma conversion rate, short production cycle, and reasonable and efficient process, resulting in a product with excellent solubility, high fixation rate, good storage resistance, and bright color.

The application discloses a 4-position linked naphthalene diisocyanate which is a halogenated acyl naphthylamine, is prepared by an Ullmann coupling reaction in the presence of a ligand and under the protection of an inert gas with a metal or a salt thereof as a catalyst, amide hydrolysis, and then carbonation with a carbonation reagent. Based on the same inventive concept, the application further discloses a preparation method of the 4-position linked naphthalene diisocyanate. Based on the same inventive concept, the application further discloses applications of the 4-position linked naphthalene diisocyanate in preparation of urethane rubber and elastomer, urethane fiber, cast urethane rubber, urethane emulsion and paint, urethane adhesive and urethane foam material. The obtained linked naphthalene polyurethane has better wear resistance and impact resistance modulus than common polyurethane materials, and can be used for preparing high-impact urethane devices and high-foaming-rate damping shock-absorbing energy-absorbing foam materials.

The present application provides a 6-position linked naphthalene diisocyanate, which is a halogenated acyl naphthylamine, prepared by Ullmann coupling reaction in the presence of a ligand and an inorganic base and under the protection of inert gas, with a metal or a salt thereof as a catalyst, followed by amide hydrolysis and then carbonylation reaction with a carbonylating agent. The present application also provides a synthesis method of the 6-position linked naphthalene diisocyanate. The present application also provides an application of the 6-position linked naphthalene diisocyanate in preparing urethane rubber and elastomer, urethane fiber, cast urethane rubber, urethane emulsion and paint, urethane adhesive, shock-absorbing foam material, energy-absorbing foam material and damping foam material. The 6-position linked naphthalene diisocyanate provided by the present application has four ring structures, high covalent bond stability, excellent chemical stability and thermal stability.

The present application relates to a kind of microporous high magnification polyether sulfone foam material for electromagnetic shielding and its moulding foaming preparation method, belong to polymer material technical field, solve the problem that the high foaming magnification of existing polyether sulfone foam material, excellent mechanical properties and electromagnetic shielding performance cannot be obtained simultaneously.The foam material of the present application comprises the following mass percentage components: PES matrix resin 50.0%-90.0%;Functional second component 4.0%-30.0%;Conductive filler 5.0%-15.0%;Initiator 0.5%-3.0%;Cell stabilizer 0.3%-1.0%;Composite foaming agent 0.2%-1.0%;The sum of the mass percentage of all components is 100%;Functional second component includes one or more of methyl p-toluenesulfonyl acetate, 4-vinyl phenyl ether, 4,4'-diphenyl methane diisocyanate, bis (4-vinyl phenyl) sulfone, phenyl glycidyl ether, N-phenyl-2-naphthylamine.

The application belongs to the technical field of synthetic chloroprene rubber, and aims to solve the problems of high labor intensity, long time, prolonged water phase preparation cycle and reduced production efficiency in the component concentration analysis method of the water phase preparation of synthetic chloroprene rubber, and provides a kind of on-line analysis method for component concentration of chlorobutadiene polymerization water phase liquid. The factors affecting the conductivity of electrolyte solution include ion concentration, temperature and valence of ions. The on-line conductivity analysis method is used to determine the concentration of naphthylamine sulfonic acid formaldehyde polycondensate sodium salt, potassium hydroxide and sodium sulfite in the water phase liquid, and the relationship between the conductivity and the concentration of the water phase components is established: the relationship between the conductivity and the concentration of PW, potassium hydroxide and sodium sulfite, respectively. Through on-line measurement of the conductivity of the water phase liquid, the on-line monitoring of the component concentration of the polymerization water phase liquid is realized. The labor intensity is reduced, the work efficiency is improved, the analysis time of single water phase preparation is shortened from 2 hours to 6 minutes, and the influence of water phase sampling analysis on production is solved.

The invention belongs to the technical field of oil exploitation, and particularly relates to compound acid for acidification and a preparation method thereof. The preparation method comprises the following steps: adding 2-naphthylamine-1, 5-disulfonic acid and water into a reactor, stirring, heating and dissolving, and adjusting the pH value to 8-9 by using a sodium hydroxide solution; simultaneously dropwise adding carbon disulfide and a sodium hydroxide solution into the reactor, maintaining the pH value to be 8-9 in the reaction process, and heating and refluxing after dropwise adding; cooling the mixture to below 5 DEG C, separating out crystals, and centrifugally drying to obtain multifunctional acid; the preparation method comprises the following steps: adding multifunctional acid, hydrochloric acid (30wt%), polymaleic anhydride, formic acid, amino trimethylene phosphonic acid and water into a container, and uniformly stirring to obtain the composite acid. According to the compound acid for acidification, the acidification time can be greatly prolonged, and a deep rock stratum is dissolved; the acidizing requirements of rock stratums at different depths can be met by adjusting the composition of each component of the composite acid and adjusting the acidizing speed.

The application discloses a method for detecting nitrite in blood based on Griess derivatization combined with liquid chromatography-tandem mass spectrometry (HPLC-MS / MS). The method utilizes the diazotization reaction of nitrite ions and p-aminobenzenesulfonic acid, and then couples with alpha-naphthylamine to generate a purple red azo compound. Quantitative analysis is realized through liquid chromatography separation and mass spectrometry detection. In view of the problems of complex blood matrix, existence of organic matter and interference of inorganic anions such as chloride ions, the application effectively reduces the matrix interference by optimizing the pretreatment process. Compared with the prior art, the method simplifies the operation steps, has good sensitivity, selectivity and separation effect, can meet the accurate detection requirements of nitrite in complex blood samples, and is suitable for forensic toxicological analysis and related clinical detection fields.

The present invention relates to a method for producing a liquid additive containing an amine of formula (1), comprising the steps of: alkylating phenyl-alpha-naphthylamine with an olefin selected from linear or branched C8-C12 alkenes to obtain a first raw material product containing the amine of formula (1); removing unreacted olefin from the first raw material product by distillation to obtain a second raw material product; and removing unreacted phenyl-alpha-naphthylamine from the second raw material product by distillation to obtain a liquid additive. The present invention also relates to a liquid additive containing the amine of formula (1) and phenyl-alpha-naphthylamine, wherein the liquid additive contains at least 95% by weight of the amine of formula (1), and the concentration of phenyl-alpha-naphthylamine in the liquid additive is less than 0.2% by weight, preferably less than 0.1% by weight. The present invention further relates to the use of liquid additives in lubricants and the like.

The invention provides a simple and efficient synthesis method, in particular to a method for realizing insertion of a formyl compound C-H into intramolecular olefin to construct an indolone compound containing a chiral quaternary carbon center by connecting a phosphorus-oxygen ligand with a nickel-aluminum bimetallic catalyst, and belongs to the technical field of methodology development. The key of the problem solved by the invention is as follows: 1, a formyl compound which is efficient and specific in reaction activity and site selectivity is found; 2, a bimetallic catalytic system is designed by utilizing the characteristics of phosphine oxide ligands, so that the reaction enantioselectivity is greatly improved;

The invention provides a high-efficiency chiral phosphine-phosphoramidite ester ligand for asymmetric hydrogenation of iridium-catalyzed high-steric-hindrance aromatic imine. The ligand is conveniently prepared from chiral (S)-2-(diphenylphosphine)-1, 2, 3, 4-tetrahydro-(R)-1-naphthylamine, (R)-BINOL and PCl3 through a two-step reaction. The ligand is stable in property, insensitive to air and humidity and easy to store. A catalyst composed of the ligand, an iridium metal precursor and an iodine-containing auxiliary agent shows excellent catalytic activity and stereoselectivity in asymmetric hydrogenation of high steric hindrance aromatic imine, the catalytic activity (S / C) reaches 500000: 1, and the enantioselectivity is gt; therefore, the method has a very good industrial application prospect.

A grease composition includes: (A) a trimellitic acid ester, (B1) a phenyl α naphthylamine, (B2) an alkyl diphenylamine, (C1) a succinic acid half ester, (C2) a sorbitan monoester, and (D) a urea-based thickener. This grease composition is excellent in anti-flaking, rust prevention, and oxidation resistance properties, and furthermore, a fatigue life of a rolling device and the like in which the grease is enclosed can be maintained for a long time.

This invention relates to the field of intelligent organic optoelectronic materials technology, specifically disclosing a photostimulation-responsive organic long-afterglow material and its preparation method. This invention is based on benzo[a]carbazole or naphthylamine derivatives with excellent long-afterglow performance, and by introducing diphenylphosphoxy groups to form a resonance system, it endows the material with excellent stimulus-response characteristics. Furthermore, using polymethyl methacrylate (PMMA) as the main component significantly avoids the quenching effect caused by self-aggregation. It also protects triplet excitons from quenching by triplet oxygen molecules, thereby enabling room-temperature phosphorescence. This material system exhibits significant photoactivation performance under photostimulation, with a visible afterglow exceeding 8 s, and possesses the characteristic that steady-state luminescence and afterglow luminescence can be co-activated. The material system provided by this invention has the following advantages: simple preparation process, low cost, and easy product purification; the obtained composite film exhibits long-lifetime and highly stable organic afterglow; its unique steady-state and afterglow synergistic photostimulation response characteristics provide a new solution for dynamic information encryption and afterglow imaging.

This application relates to the field of organic electroluminescence technology, and discloses a binaphthylamine derivative, its preparation method, and its applications. Based on the organic compounds containing binaphthylamine groups as donor structures, this application synthesizes a series of D-A structure molecules by linking different triazine ring derivative acceptors. These molecules exhibit high quantum yield and circularly polarized light properties, and can be used to prepare highly efficient organic electroluminescent devices.

The invention provides a combined collecting agent and application of the combined collecting agent in mineral flotation. The combined collecting agent comprises a halogenated thiophenol compound and 1, 2, 3, 4,-tetrahydro-1-naphthylamine; the combined collecting agent is applied to mineral flotation, through the synergistic effect of the halogenated thiophenol compound and the 1, 2, 3, 4,-tetrahydro-1-naphthylamine, the flotation effect on sphalerite and pyrrhotite is effectively improved, the recovery rate of sphalerite and pyrrhotite in sulphide ore is increased, and then the utilization rate of metal mineral resources is increased.

The present invention relates to an at least partially continuous process for the preparation of at least one oligomer and / or polymer comprising at least one diphenylamine repeat unit and optionally at least one phenyl alpha-naphthylamine repeat unit.