95 results about "1-Naphthylamine" patented technology

The invention relates to a gear oil composition and applications thereof, mainly solving problems of abnormal gear wear and poor oxidation stability of an oil product which are caused by that the extreme pressure property of industrial gear oil in the prior art fails to satisfy a part of using requirements of the metallurgy industry. According to the technical scheme adopted by the gear oil composition, the gear oil composition comprises following components by weight: a) 100 parts of mineral base oil; b) 0.1-10.0 parts of an anti-wear reagent at extreme pressure; c) 0.01-2.0 parts of an antioxidant; d) 0.01-0.5 part of a metal deactivator and e) 0.01-1.5 parts of an oiliness agent, wherein the anti-wear reagent at extreme pressure is a mixture of sulfurized isobutylene and at least one selected from sulfurized olefin, phenyl sulfide, sulfurized aliphatic ester or amine thiophosphate diester; and the antioxidant is at least one selected from 2,6-di(tertbutyl)-p-cresol, 3.5-di(tertbutyl)-4-hydroxy phenyl acrylate, pentaerythrite tetra[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate], N-phenyl-1-naphthylamine or alkylated diphenylamine. By the technical scheme, the problems are solved well and the gear oil composition can be used for industrial production.

The preparation process of 1-fluoronaphthalene includes the following steps: (1) reacting 1-naphthylamine with nitrous acid, nitrous acid ester or nitrite in acid medium to obtain diazo salt; (2) reacting the diazo salt with fluoroboric acid or its salt or fluorophosphoric acid or its salt to obtain diazo fluoroborate or diazo fluorophosphate; and (3) heating the diazo fluoroborate or diazo fluorophosphate to decompose to obtain 1-fluoronaphthalene. The process has short synthesis path, less side products, mild reaction condition, easy control, relatively low cost, great production capacity, high product purity and other advantages, and the product is used as medicine intermediate.

The invention relates to a process for preparing bisdiazo solvent dye which comprises, dissolving 1-naphthylamine into 0.5-5wt% of water solution of hydrochloric acid or sulfuric acid, charging sodium acetate till pH=3-4, charging diazonium salt of arylamine for coupling reaction at 0-15 deg. C, neutralizing the reaction mixture with alkali till pH=8-13, filtering, water scrubbing to obtain the monoazo dye, subjecting monoazo dye to diazo reaction with sodium nitrite, coupling the reacted mixture and 1, 8 di-naphthylamine with the condensation product of alkyl ketone R2-CO-R3, neutralizing the coupling product with alkali till pH=8-13, processing 90-100 minutes at 90-100 deg. C, filtering, rinshing to absence of chloride ion.

The invention provides a peptoid as well as a preparation method and application thereof. The peptoid comprises the following subunits: ethylenediamine (I), piperonylamine (II), beta-alanine (III), 1-naphthylamine (IV) and cysteine (V). The peptoid is simple in synthesis, has strong combining capacity with alpha-synuclein, can effectively screen the serum of PD patients and able-bodied persons through alpha-synuclein in the serum, and provides a novel liquid biopsy method and concept for diagnosis and monitoring of the Parkinson's disease.

The invention relates to an algaecide. The algaecide which can be used for effectively removing algae and precipitating alga bodies contains chitosan, fly ash autoclaved brick powder and allelopathic chemicals of gallic acid, nonoic acid or N-phenyl-naphthylamine, and is obtained by dissolving a certain amount of chitosan by using hydrochloric acid, then adding the fly ash autoclaved brick powder of 40-200 meshes, and then adding the dimethyl sulfoxide assisted dissolved allelopathic chemicals of gallic acid, nonoic acid, N-phenyl-1-naphthylamine or N-phenyl-2-naphthylamine. The chitosan and the fly ash autoclaved brick powder used in the algaecide provided by the invention are nontoxic, the allelopathic chemicals of gallic acid, nonoic acid and the like belong to plant secondary metabolism products, can be degraded easily in a water body and cannot cause secondary pollution, and although the diluted HCl solution is used for dissolving chitosan, great changes of the pH value of the water body are not caused in a dosage range. The algaecide provided by the invention can be used for removing the algae effectively and ensuring that the alga bodies are sunk to the bottom of water, has a small influence on the environment and does not cause secondary pollution, the water body is clear, and the beautiful outlook of the water body is not influenced, so that the algaecide is suitable for removing the algae from a small landscape water body taking blue algae as a dominant species.

The invention discloses a near infrared zinc ion fluorescent probe compound, and a preparation method thereof. The preparation method comprises following steps: malononitrile and isophorone are dissolved in an organic solvent for reaction with piperidine, acetic acid, acetic anhydride, and p-hydroxy benzaldehyde, and an obtained product is dissolved in trifluoroacetic acid for reaction with urotropine so as to obtain an intermediate represented by formula II; 5-amino-4, 6-dichloropyrimidine and 1-naphthylamine are added into an organic solvent, concentrated hydrochloric acid is added, reflux reaction is carried out, an obtained reaction product, acetic acid, polyphosphoric acid, and dodecyl trimethyl ammonium chloride are dissolved in phosphorous oxychloride, an obtained reaction substanceis dissolved in an organic solvent for reaction with hydrazine hydrate so as to obtain an intermediate represented by formula II; the intermediate represented by formula II and the intermediate represented by formula III are added into an organic solvent for reaction so as to obtain the near infrared zinc ion fluorescent probe compound (formula I). The near infrared zinc ion fluorescent probe compound is high in sensitivity, excellent in anti-interference performance, and can be widely used for zinc ion detection.

The invention introduces a waste water treatment method in 1-naphthylamine-4-sodium sulfonate production process, and is characterized by adding quantitative sulfuric acid in waste water, which contains 1-naphthylamine-4-sodium sulfonate, sodium carbonate and sodium sulfate and is produced by the 1-naphthylamine-4-sodium sulfonate production process, so as to convert sodium carbonate into sodium sulfate, then cooling to precipitate Na2SO4 crystalline hydrate and separate crystallization mother liquor, and continuing to use the mother liquor to neutralize the concentration of the reaction process and the proportion regulating solution. The invention solves the pollution to environment cause by the waste water produced by the 1-naphthylamine-4-sodium sulfonate production process, and basically realizes zero discharge of crystallization mother liquor; the treatment cost is low; the energy consumption is small; Na2SO4 and 1-naphthylamine-4-sodium sulfonate can be recycled; the mother liquor can continue to be used for neutralizing the regulating solution of the reaction process; and the raw material is saved.

The invention discloses a method for forming an amino acid self-assembly corrosion inhibition membrane with fluorescent characteristics on a copper surface, which comprises the following steps of: polishing pure copper step by step by metallographical sand paper from No.1 to No.6, degreasing with absolute ethyl alcohol and cleaning with deionized water for later use; processing a copper test specimen by using aqueous solution of amino acid to obtain the copper test specimen modified by the amino acid; and assembling fluorescent reagent onto the surface of the copper test specimen indirectly under the electrostatic attraction action between 1-naphthylamine sodium diacetate (NADA) serving as the fluorescent reagent and the amino acid to prepare a dual-layer photosensitive corrosion inhibition self-assembly corrosion inhibition functional membrane, and characterizing the fluorescent characteristics and corrosion inhibition effect of the membrane respectively by adopting fluorescence spectra and an electrochemic impedance method. Researches show that in the corrosion inhibition functional membrane with the fluorescent characteristics, the relevance exists between fluorescence intensity and corrosion inhibition performance, and the corrosion inhibition characteristics of the assembly membrane are subjected to on-line detection and real-time monitoring through a fluorescence signal,so the method has great significance for promoting the application of the amino acid self-assembly membrane.

Disclosed is a synthesis method of pyrazoline derivatives emitting olivine light, in which the pyrazoline derivative, 1-phenyl-3-[4-(N-phenyl-1-naphthylamine)ethylene]-5-[4-(N-phenyl-1-naphthylamine)phenyl]-2-pyrazoline brown-green crystals are finally prepared through three-times intermediates, by selecting material, preparing sollution, chemical combination reaction, heating, mixing, water-circulation condensation, ice water washing, argon protection, column chromatography purification, recrystallization purification, vacuum filtering, evaporation and drying, the products are grain diamond-shaped, the color coordinate is that x=0.3257, y=0.5452, the maximal emission wavelength of photoluminescence spectrum is 523 nm and the full width at half maximum is 96 nm. The products have high purity, pure color, excellent irradiance performance, high irradiance intensity and high lighteness, the products are also capable of improving the stability, reliability and life time of organic electroluminescent devices, being used in the fields of advance electronic display and irradiance illumination technology, the method of the invention is strictness and reasonable.

The invention belongs to the technical field of food safety and material chemistry, and relates to a method for detecting nitrite ions based on a gold-silver core-shell nano-particle SERS technology.The method comprises the steps that a gold-silver core-shell nano-particle solution is prepared; nitrite ion solutions of different concentrations are prepared; a p-aminothiophenol solution and 1-naphthylamine are added respectively, and then a gold-silver core-shell nanoparticle solution is added; a raman spectrometer is used to collect raman spectra of nitrite ions of different concentrations; astandard curve of the raman signal intensity corresponding to the nitrite ion concentration is established; a sample to be tested is selected to react with p-aminothiophenol; 1- naphthylamine is added for reaction, and then the gold-silver core-shell nanoparticle solution is added for reaction; the raman spectrometer is used to collect spectra; and the concentration of the nitrite ions of the sample to be tested is acquired according to the established standard curve. According to the invention, a non-labeling method is used to detect nitrite ions, which saves the detection cost and improvesthe detection speed and stability.

The invention relates to a novel preparation method of 4-cyclopropyl-1-naphthylamine. The raw materials needed for the preparation method are cheap in price and easy to obtain, the reaction step operation is simple, and the total yield is better than that of the prior art level. Moreover, the nitrification, hydrogenation reduction, Suzuki coupling and other reactions are avoided to use, and thus the production difficulty and production cost is greatly reduced. A relatively economical, efficient, safe and environment-friendly synthetic route is provided for the preparation of 4-cyclopropyl-1-naphthylamine.

The invention relates to a method for synthesizing 1-naphthylamine-4-sodium sulfonate by a gas-phase SO3 sulfonation method. The method is characterized in that gas SO3 and dry air are mixed and cooled, a mixture is introduced into a reaction vessel filled with 1-naphthylamine and an organic solvent for sulfonation, the reaction vessel is heated to the temperature of 160-190 DEG C for transposition, water and solid alkali are slowly added in the reaction vessel for neutralizing until the pH value is 7-9, and the material is subjected to standing and layering to obtain an oil phase and a water phase; the water phase is concentrated until the concentrate proportion is 1.20-1.22, the obtained concentrate is subjected to standing for 1-2 hours at the temperature of 60-80 DEG C, and then the material is separated to obtain the product 1-naphthylamine-4-sodium sulfonate. The method has the advantages of short reaction time, low energy consumption, high efficiency during the reaction process, and no three-waste generation.

The invention provides a method for preparing a N,N-dimethyl-1-naphthylamine compound from terminal alkyne, o-bromoacetophenone and a N,N-dimethylamide compound. According to the present invention, the method uses cheap and easily available raw materials and a copper catalyst, and has characteristics of strong functional group compatibility, easy separation of the target product, simple and convenient operation, safety, reliability and high yield of the product; with the method, the problems of low yield, requirement of substrate pre-functionalization, not wide applicability, complex operation, use of ligands, use of precious metals, use of toxic organic solvents, and the like of other synthesis methods are solved; and the method has potential application prospects in fluorescent probes, dyes and bioactive drugs.

The invention provides a method for preparing 1-fluoronaphthalene. The method comprises the following steps of: (1) reacting 1-naphthylamine serving as a raw material and a diazo reagent under acidic conditions to obtain diazonium salt; (2) reacting the diazonium salt obtained in step (1) and fluoroboric acid, phosphorofluoridic acid or salt of the fluoroboric acid and the phosphorofluoridic acid to obtain crude diazonium fluoroborate or crude diazonium fluorophosphate; and (3) replacing and dehydrating the diazonium fluoroborate or the crude diazonium fluorophosphates by using alcohol, replacing the alcohol by using a solvent formed by one or more of methylbenzene, benzene, dimethylbenzene, chlorobenzene, nitrobenzene, chloroform, dichloromethane, dichloroethane, trichloroethylene, cyclohexane and n-hexane, and directly cracking to obtain the 1-fluoronaphthalene. By the method, the technical problem that the diazonium salt is easy to decompose when dried and dehydrated in the traditional process is solved, and the yield and safety of the product are improved; the process is simple, and the industrialization is easy to realize; and the product has high purity and stable characteristics, and fully meets the using requirements when taken as a pharmaceutical intermediate.

The invention discloses a rush medulla junci modification-based 3D printer base material and a preparation method thereof. The preparation method comprises the following steps: (1) performing fixation and smashing on rush medulla junci, then mixing rush medulla junci powder with bamboo charcoal powder and soaking into a mixed solution of 1-naphthylamine and hydrochloric acid, and then filtering to take a filter cake to prepare a modified composition; (2) mixing expanded polystyrene, the modified composition, polyacrylonitrile, polychloro trifluoroethylene, silica, 2-sulfhydryl phenylthiazole, dilauryl thiodipropionate, steel fibers, mica powder, dioctyl adipate and zinc borate, and then fusing, cooling and pelleting to prepare the 3D printer base material. The 3D printer base material prepared through the method has excellent shock resistance and ageing resistance.

The invention relates to the field of OLED (organic light emitting diode) display, in particular to a novel organic material and application thereof in electroluminescent devices. A structural formulaof the organic material is as shown in the specific. The novel OLED material is characterized in that by taking a fused ring compound as a center, taking a methyl(1-naphthylamine) as a terminal groupand introducing substituent(N-phenyl-1-naphthylamine) with a hole transport performance, the novel OLED material with the hole transport performance is obtained. The material is high in hole mobility, high in film stability and appropriate in molecular energy level, can be applied as a hole transport material in the field of organic electroluminescence and has a promising application prospect.

The present invention relates to caffeoyl naphthalene sulfamide compound. The compound is prepared with 5-acetamido-1-sodium naphthalenesulfonate as material and through reaction first with chlorosulfonic acid and then with amine compound to obtain 5-(N-substituted amino)-sulfonyl-1-naphthylamine; reaction with 3, 4-diacetylcaffeoyl chloride to obtain N-[[5-[(N-substrate)-amino]-sulfonyl]-1-naphthyl]-3, 4-diacetylcaffeoylamine; and hydrolysis to obtain N-[[5-[(N-substrate)-amino]-sulfonyl]-1-naphthyl]-caffeoylamine. The present invention also relates to the application of the compound as human immune deficiency virus integrase inhibitor.

The invention discloses a PC-PVC composite plate and a production process thereof. The PC-PVC composite plate comprises the following parts: in parts, 10-13 parts of easily mixed channel black, 0.5-3parts of a foaming regulator DLF, 20-25 parts of PVCS-700 resin, 22-28 parts of polycarbonate, 5-12 parts of vaseline, 10-15 parts of light calcium carbonate, 7-13 parts of antimony trioxide, 11-14 parts of zinc carbonate, 6-15 parts of stearic acid, 6-15 parts of salicylic acid, 20-35 parts of pottery clay, 10-20 parts of graphite, 5-10 parts of aloe vera gel, 15-27 parts of diatom mud, 14-29 parts of activated carbon, 6-15 parts of nano modified alkyd resin, 2.5-5 parts of an impact modifier ACM, 0.5-4 parts of polyethylene wax, 0.5-1 part of stearic acid, 0.5-5 parts of an anti-aging agent,77-94 parts of pyridine butadiene rubber, 37-48 parts of Camphora officinarum powder, 4-12 parts of an accelerator TMTM, 1-3 parts of N-cyclohexyl-2-benzothiazole sulfenamide and 16-19 parts of N-phenyl-1-naphthylamine. The PC-PVC composite plate has efficient impact resistance, environmental protection, high heat resistance, toughness, fatigue resistance, self lubrication, low friction coefficient, weather resistance, resistance to corrosion of hot water, alkali, acid, oil and halogenated hydrocarbons and strong hydrolysis resistance, and has a high practical value.

The present invention discloses a method for synthesizing 4-(4-cyclopropylnaphthalen-1-yl)-1H-1,2,4-triazole-5(4H)-thione. The method includes the following steps: using 4-cyclopropyl-1-naphthylamine (formula A) as a starting reactant, reacting the formula A with carbon disulfide to generate 4-cyclopropyl-1-naphthylamino dithiocarbamate (formula B) under a organic alkaline condition, reacting the formula B with bis (trichloromethyl) carbonate (BTC) or acylating reagents like ethyl chloroformate and methyl chloroformate, etc. to generate 4-cyclopropyl-1-naphthylamino dithiocarbamate chloro-carbonic acid anhydride, conducting decomposition reaction to the resulting product without separation and purification to produce 4-cyclopropyl-1-naphthyl isothiocyanate. The method uses carbon disulfide instead of thiophosgene with greater toxicity, and provides simple process and stable reaction. Furthermore, raw materials are readily available, and industrialization is easy to be realized with a total recovery of more than 65%.

The invention relates to the field of organic electroluminescence [OLED (organic light emitting diode)] display, in particular to a novel organic material and application of the novel organic materialto display devices. A structural general formula of the novel organic material is shown. Fused ring compounds are used as centers of the novel organic material which is a novel OLED material, 1-naphthylamine with fluorine atoms is used as an end group, substituent groups (N-phenyl-1-naphthylamine) with hole transport performance are introduced in active locations of polycyclic aromatic compounds,and accordingly the novel OLED material with hole transport performance can be obtained. The novel organic material and the application have the advantages that the novel organic material is high inhole mobility, good in thin-film stability and appropriate in molecular energy level and can be applied to the field of organic electroluminescence; the novel organic material has a broad applicationprospect when used as a hole transport material.

The invention discloses a fluorescent sensor for magnesium ions, which is made of an organic-inorganic composite material, and a preparation method thereof, and belongs to the technical field of fluorescent sensor preparation. Due to exchangeability of anions among hydrotalcite layers, 1-naphthylamine-3,6,8-trisulfonic acid is inserted among the hydrotalcite layers through an ion exchange method, a film is prepared by an electrochemical deposition method, and the fluorescence response of a film sensor to the magnesium ions is examined. In the prepared fluorescent sensor for the magnesium ions, the hydrotalcite is nontoxic and stable, and has high biocompatibility; different from a polymer carrier, an inorganic laminate of the hydrotalcite is difficult to age and can be stored for a long time so as to keep the optical stability of fluorescent ions and obviously improve the thermal stability of the fluorescent ions; and the sensor has high selectivity for the magnesium ions, shows a linear relationship in a certain range, and has repeated operability.