42 results about "Naphthalene Compound" patented technology

The invention provides organic molybdenum salt rich in pentavalent molybdenum as well as hair preparation and application thereof. The weight content of Mo < 5 + > in the organic molybdenum salt is higher than 75%, preferably 80%-90%, further preferably 83%-88% by taking the total weight of a molybdenum metal element as a reference, and the mass content of the active metal in terms of the Mo metal element is 12 wt%-20 wt%, preferably 14 wt%-18 wt% by taking the weight of the organic molybdenum salt as a reference; the preparation method of the organic molybdenum salt comprises the step of reacting a molybdenum source with an organic ligand under the action of a hydronaphthalene compound and / or a hydrogenated anthracene compound. The organic molybdenum salt prepared by the method disclosed by the invention is high in pentavalent molybdenum content proportion and high in molybdenum metal content.

The invention discloses 2-phenyl-4-pinacol boryl-2, 1-boron aza-naphthalene, a 2-phenyl-4-pyrimidinyl-2, 1-boron aza-naphthalene compound and a preparation method of the 2-phenyl-4-pinacol boryl-2, 1-boron aza-naphthalene compound, and belongs to the technical field of organic synthetic chemistry. According to the preparation method, 2-phenyl-4-pinacolboryl-2, 1-boronaphthalene and bis (pinacol) diboron diboron ester are taken as raw materials, CuCl is taken as a catalyst, 4, 5-bis (diphenylphosphine)-9, 9-dimethyl xanthene is taken as a ligand, 2-adamantanone is taken as an additive, p-xylene is taken as a solvent, and the 2-phenyl-4-pinacolboryl-2, 1-boronaphthalene is efficiently obtained. The 2-phenyl-4-pyrimidinyl-2, 1-boron aza-naphthalene compound can be used as a key intermediate, the 2-phenyl-4-pyrimidinyl-2, 1-boron aza-naphthalene compound can be conveniently synthesized through efficient conversion of a C-B bond, and a new way is provided for functional modification of the boron-nitrogen heterocyclic compound.

The invention provides a method for modifying polyurethane acrylate with a triazine naphthalene compound, a polyurethane acrylate polymer and application of the polyurethane acrylate polymer. The method comprises the following steps: (1) adding isocyanate and polyol in a molar ratio of (1.8-2.2): 1 into a reaction kettle, then adding an organic solvent of which the mass is the same as the total mass of the isocyanate and the polyol, and uniformly mixing to obtain an initial solution; the isocyanate is prepared from a triazine naphthalene compound with an isocyanate group and diisocyanate; the polyhydric alcohol comprises a triazine naphthalene compound with a hydroxyl group and dihydric alcohol; (2) under protective gas, dropwise adding a catalyst into the initial solution, and carrying out heating reaction to obtain a reaction solution; (3) keeping the temperature unchanged, and continuously adding hydroxyl acrylate and a polymerization inhibitor into the reaction solution for blocking until the content of isocyanate functional groups is lower than 0.1%; and cooling, neutralizing to be neutral, carrying out reduced pressure distillation to remove the solvent, carrying out immersion cleaning with deionized water, filtering and drying to obtain the polyurethane acrylate polymer.

The application discloses a 2-phenyl-4-pinacol boron-based-2,1-boronazanaphthalene, a 2-phenyl-4-pyrimidyl-2,1-boronazanaphthalene compound and a preparation method thereof, and belongs to the technical field of organic synthesis chemistry. The method is based on a copper-catalyzed selective dehydrogenation boronation reaction strategy, 2-phenyl-2,1-boronazanaphthalene and pinacol diboron ester are used as raw materials, CuCl is used as a catalyst, 4,5-bis(diphenylphosphino)-9,9-dimethyloxyanthracene is used as a ligand, 2-adamantanone is used as an additive, p-xylene is used as a solvent, and 2-phenyl-4-pinacol boron-based-2,1-boronazanaphthalene is efficiently obtained. The 2-phenyl-4-pinacol boron-based-2,1-boronazanaphthalene compound synthesized by the application can be used as a key intermediate, is efficiently converted through a C-B bond, and is convenient for synthesizing a 2-phenyl-4-pyrimidyl-2,1-boronazanaphthalene compound, thereby providing a new way for functional modification of boronazacyclic compounds.

The present invention relates to oligomeric binaphtyl compounds of the formula (I) that are suitable as monomers for preparing thermoplastic resins, such as polycarbonate resins, which have beneficial optical and mechanical properties and can be used for producing optical devices. where X1 and X2 are independently selected from hydrogen, -Alk1-OH, -CH2-A2-CH2-OH, -Alk2-C(O)ORX, -CH2-A2-C(O)ORX and -C(O)-A2-C(O)ORX, where Rx is selected from the group consisting of hydrogen, phenyl, benzyl and C1-C4-alkyl; Y1 and Y2 are independently selected from -CH2-, -CHArY- and -CH(CH2ArY)-; A1 is e. g. a single bond, -CH2-, -CHArA -CH(CH2ArA)-, -C(CH2ArA)2-, a moiety of the formula (A), mono- or polycyclic arylene having from 6 to 26 carbon atoms as ring members or mono- or polycyclic hetarylene having a total of 5 to 26 atoms, which are ring members, alternatively, the moiety -Y1-A1-Y2- in formula (I) may be -CH2- or -CHArY-, n is 1, 2 or 3; m, p, q and r are independently 0, 1 or 2; R1, R2, R3 and R4 are independently selected from the group consisting of halogen, C2- C3-alkynyl, CN, R, OR, CHsR'3-s, NR2, C(O)R and CH=CHR", it being possible that R1, R2, R3 or R4 is identical or different if more than 1 of R1, R2, R3 or R4 is present, where s on each occurrence is 0, 1 or 2.

The invention discloses a method for optimizing a dispersing agent for improving the limit reliability of a polaroid, relates to the technical field of dispersing agent preparation methods, and aims to solve the problems that the use requirement of the polaroid for an intelligent view cabin is that the polaroid can be continuously tested or the working state can be kept for 2000 hours in a high-temperature environment of 140 DEG C, and the existing dispersing agent cannot meet the use requirement. Comprising the following steps: step 1, adding a naphthalene compound and sulfuric acid into a reaction kettle, and continuously stirring under vacuum pressure of the reaction kettle to promote sulfonation reaction to generate a sulfonated product and release low-boiling-point organic matters; step 2, cooling the sulfonated product to 120 DEG C, adding water until the acid value is 20%, cooling, sequentially adding sodium sulfite and ammonium sulfate into the reaction kettle, and stirring at 85 DEG C and normal pressure to generate a macromolecular condensate; 3, adjusting the pH value to 6.5-7.0 by using a sodium hydroxide solution, neutralizing excessive sulfuric acid, and filtering to remove generated sodium sulfate precipitate; and 4, atomizing the liquid product through a spray dryer to obtain the powdery dispersant.

The present invention provides: high-purity 2-naphthylacetonitrile which contains less impurities and is useful as a starting material or intermediate for the synthesis of various pharmaceutical products, agrochemicals, and chemical products; and a production method thereof. The high-purity 2-naphthylacetonitrile has an HPLC purity of 95% by area or more, and the content of naphthalene compounds represented by formulae (a) to (j) is equal to or less than a specified area percentage. The production method of the high-purity 2-naphthylacetonitrile is characterized by comprising the following steps: step 1 and step 2. Step 1 is a step for obtaining 2-naphthylacetic acid by hydrolyzing an amide compound obtained by subjecting 2 '-acetophenone to a Willgerodt reaction, if necessary, in the presence of an additive. Step 2 is a step of obtaining 2-naphthylacetonitrile by reacting the 2-naphthylacetic acid obtained in Step 1, a halogenating agent and sulfonamide in the presence of a catalyst if necessary in an organic solvent.

The invention relates to the technical field of titanium tetrachloride, and provides a vanadium removal reagent for removing vanadium impurities in titanium tetrachloride and a use method of the vanadium removal reagent, the vanadium removal reagent is prepared from the following components in percentage by mass: 20-60% of anthracene compounds, 1-10% of phenanthrene compounds, 5-20% of pyrene compounds, 10-30% of thiophene compounds and 10-30% of naphthalene compounds, the sum of the mass percentages of all the components is 100%, and the vanadium removal reagent is used for reacting with vanadium oxychloride in titanium tetrachloride to remove vanadium impurities. According to the scheme, the defects that the vanadium removal efficiency is low, the speed is low, dangerous reagents are used and secondary carbon pollution is introduced in a traditional process are overcome, and the purity of the obtained titanium tetrachloride product completely meets the strict application requirements in the high-end field.

This application belongs to the field of organic synthesis technology, and particularly relates to a novel naphthoquinone intermediate and its preparation method, as well as a chiral naphthalene compound and its preparation method. Among them, a chiral phosphoric acid catalyst is used to dehydrate compound A to obtain a novel naphthoquinone intermediate; the general structural formula of compound A is The general structural formula of the novel naphthoquinone intermediate is Among them, R 1' , R 2' are each independently selected from one of hydrogen, alkyl, and ether, X is O or NR 3' , R 3' is one of hydrogen and acyl. A chiral phosphoric acid catalyst is used to dehydrate compound A. During the reaction, the chiral phosphoric acid catalyst acts as a Brønsted acid to dehydrate the substrate compound A, in-situ generating a novel naphthoquinone intermediate based on the naphthalene ring. This novel naphthoquinone intermediate has excellent electrophilic properties and can participate in asymmetric organic catalytic reactions as an electrophilic reagent. It expands the naphthoquinone intermediate and improves the application of the naphthoquinone intermediate in asymmetric addition reactions.

The invention provides mixed side-chain alkyl naphthalene base oil and a preparation method thereof, and the preparation method comprises the following steps: in the presence of an ionic liquid catalyst, adding more than two olefins into naphthalene, and carrying out an alkylation reaction on the naphthalene to obtain a mixed side-chain alkyl naphthalene compound, wherein the difference between the olefin with the maximum carbon number and the olefin with the minimum carbon number in the olefins is at least two carbon numbers. The mixed side chain alkyl naphthalene base oil synthesized by the invention has more side chain structures, so that the mixed side chain alkyl naphthalene base oil has higher viscosity index and flash point.

The present invention relates to binaphthyl compounds of the formula {I) that are suitable as monomers for preparing thermoplastic resins, such as polycarbonate resins, which have beneficial optical and mechanical properties and can be used for producing optical devices, where X1 and X2 are independently selected from —CH2OH and —C(O)ORX, where Rx is selected from the group consisting of hydrogen, phenyl, benzyl and C1-C4-alkyl: A1 and A2 are independently e.g. mono- or polycyclic arylene having from 6 to 26 carbon atoms as ring members or mono- or polycyclic hetarylene having a total of 5 to 26 atoms, which are ring members: R1 and R2 are independently selected from the group consisting of halogen, C2-C3-alkynyl, CN, R, OR, CHsR′3-s, NR2, C(O)R and CH═CHR″, it being possible that R1 and R2 are identical or different if p+q>1, where s on each occurrence is 0, 1 or 2; p and q are independently 0, 1 or 2.

The invention provides a method for photocatalytic asymmetric intermolecular dearomatization cycloaddition reaction based on naphthalene derivatives, and belongs to the technical field of chemical synthesis. The olefin compound and the 2-pyrazole amide naphthalene derivative are used as reaction raw materials, [2 + 2]-cycloaddition or [4 + 2]-cycloaddition reaction is realized under specific reaction conditions, and the obtained product has high yield and high enantioselectivity. The substrate provided by the invention is good in universality, is especially suitable for raw materials containing naphthalene, overcomes the problem that naphthalene-containing compounds are not easy to react in the prior art, and has a good application prospect.

Oligomeric binaphtyl compounds of formula (I),whereX1-X2 are selected from hydrogen, -Alk1-OH, —CH2-A2-CH2—OH, -Alk2-C(O)ORx, —CH2-A2-C(O)ORx and —C(O)-A2-C(O)ORx, where Rx is selected from the group consisting of hydrogen, phenyl, benzyl and C1-C4-alkyl;Y1-Y2 are selected from —CH2—, —CHArY- and —CH(CH2ArY)—;A1 is a single bond, —CH2—, —CHArA—, —CH(CH2ArA)-, —C(CH2ArA)2-, a moiety of the formula(A), mono- or polycyclic arylene having 6-26 carbon atoms as ring members or mono- or polycyclic hetarylene having 5-26 atoms, which are ring members, alternatively, the moiety —Y1-A1-Y2— in formula(I) is —CH2— or —CHArY-,n is 1, 2 or 3; m, p, q and r are 0, 1 or 2;R1-R4 are independently-selected from the group consisting of halogen, C2-C3-alkynyl, CN, R, OR, CHsR′3-s, NR2, C(O)R and CH═CHR″, R1, R2, R3 or R4 is identical or different if more than 1 of R1, R2, R3 or R4 is present, where s on each occurrence is 0, 1 or 2.

This invention discloses a binaphthyl compound, its preparation method, and its applications. The structural formula of the binaphthyl compound is shown in any one of formulas A1-A5. In the technical solution of this invention, an organic phosphorescent molecule is developed by rationally designing its molecular structure, maintaining an appropriate energy level difference between the singlet and triplet excited states, enabling effective intersystem crossing (ISC) from the singlet to the triplet excited state; and by creating a rigid environment, the non-radiative deactivation of the triplet excited state of the organic phosphorescent molecule is suppressed, thereby obtaining efficient, stable, and long-lived phosphorescence.

The present invention relates to the use of the compound of the formula (I) where the variables are as defined in the claims and the description, or of a mixture thereof, as a monomer for producing a thermoplastic resin selected from polyesters, polycarbonates and polyestercarbonates. The invention relates moreover to compounds (I), except for compounds where A1 and A2 are both unsubstituted 1,4-phenylene, p and q are both 0, and X1 and X2 are both —CH2OH or —C(O)OH, and except for the compound where A1 and A2 are both unsubstituted 2,3-quinolinylene, p and q are both 0, and X1 and X2 are both —CH2OH.

The present application relates to the field of lithium battery detection, in particular to a boron naphthalene compound, a preparation method and application thereof.The boron naphthalene compound has a structure as shown in general formula (1).The boron naphthalene compound can realize specific characterization of lithium fluoride in the SEI film without using high-cost experimental equipment, and the experimental condition threshold is low.

The invention relates to the technical field of organic chemical synthesis, in particular to a method for synthesizing a 1, 3-diboron ester naphthalene compound through aromatization driving, which comprises the following steps: mixing a benzo cyclohexanone derivative with an enol leaving group, bis (pinacol) borate and organic alkali (bis (trimethylsilyl) sodium amide) in a solvent (trifluorotoluene and cyclohexane); the preparation method comprises the following steps: firstly, stirring at room temperature for pre-complexing, then heating to 30-70 DEG C (preferably 40 DEG C), and carrying out double boronation and aromatization reaction to generate the 1, 3-diboron ester naphthalene compound. The preparation method is simple, does not need a transition metal catalyst, avoids the problems of heavy metal residues and biotoxicity, realizes efficient and regioselective double boronation reaction, and solves the problems that a traditional method depends on a metal catalyst and the regioselectivity is poor.

The invention provides a synthetic method of a deuterated naphthalene borate compound, which comprises the steps of converting a brominated naphthalene compound into a chlorinated naphthalene compound and then carrying out deuteration, so that the generation of an isomeride is avoided, the yield of the deuteration step reaches more than 85%, the yield is improved, the deuteration cost can be effectively reduced, and the product purity reaches more than 99%. The method is suitable for industrial production.

The present invention provides a novel naphthalene compound, a method for synthesizing said naphthalene compound, and a resin composition containing said naphthalene compound. The resin composition according to the present invention can be applied to a coating material, an ink, an adhesive, a tackifier, a gas barrier film, a color filter, a prism, a diffraction grating, an optical mirror, an optical film, an optical lens, or the like. The present invention relates to a naphthalene compound represented by chemical formula (I), a method for synthesizing the same, a resin composition containing said compound, and a cured product thereof. (In the formula, Y represents a group selected from formulas (1) to (7). n represents an integer of 1 to 10.) (In formulas (1) to (7), m1 represents an integer of 1 to 3. m2 represents an integer of 1 to 2. The m3 are the same and represent an integer of 1 to 3. m4 represents an integer of 1 to 3.)

The invention discloses an enamel color painting and a preparation method thereof, and relates to the technical field of enamel color paintings. A specific amount of the naphthalene compound and the oily brightening agent are added into the oily ice flower paint, the temperature and the relative humidity of the environment during the reaction are controlled to be within a specific range, and the reaction is carried out under a windy condition, so that an ice crack effect can be formed on various substrates such as glass, stainless steel, copper, ceramic and rock materials; meanwhile, the ice crack road is high in color saturation, more uniform, more regular and better in texture, and the adhesive force between the coating and a substrate is higher.

The present invention provides octahydro fused azadecalin compounds having glucocorticoid receptor binding affinity and modulatory activity for pharmaceutical use Also provided are pharmaceutical compositions containing an effective amount of the fused azedecalin compounds and methods of using the compositions for the-treatment of a glucocorticoid receptor mediated disorder in a subject.

The present invention relates to a use of a compound of the formula (I) or a mixture thereof, which are suitable as additives in resin compositions. The compounds are suitable as additives in particular, for thermoplastic resin compositions for producing optical devices such as optical lenses. The present invention also relates to resin compositions containing such binaphthyl compounds and a resin(s). In formula (I), A1 and A2 are identical or different and independently selected from C1- C6-alkylene which are unsubstituted or substituted by 1, 2, 3 or 4 identical or different 0 radicals R'"; X1 and X2 are identical or different and independently selected from the group consisting of O, C(=O), O-C(=O), S and SO2. In formula (I), Ar1, Ar2, R1, R2, L1, L2, k, l, p and q are as defined in the present description.

The invention discloses a synthesis method of (1R, 4aR, 6S, 8aS)-6-(benzyloxy)-5, 5, 8a-trimethyl-2-methylene decahydronaphthalene-1-methanol, and belongs to the technical field of organic synthesis. The method comprises the following steps: carrying out [2, 3]-Wittig rearrangement reaction on a (4aR, 6S, 8aR)-6-(benzyloxy)-2-[[(tributyltin alkyl) methoxyl] methyl]-5, 5, 8a-trimethyl-3, 4, 4a, 5, 6, 7, 8, 8a-octahydronaphthalene compound in a reactor in an inert atmosphere under the action of n-butyllithium, and carrying out subsequent separation and purification after the reaction is finished, so as to obtain the (1R, 4aR, 6S, 8aS)-6-(benzyloxy)-5, 5, 6, 7, 8, 8a-octahydronaphthalene compound. The method comprises the following steps: adding 2, 3, 5, 8, 8a-trimethyl-2-methylene decahydronaphthalene-1-methanol into a The method provided by the invention has the advantages of simple steps, safe operation, non-toxic and easily available raw materials, simple and easy process and small pollution, and accords with the idea of green chemistry.

A method for analyzing naphthalene-based compounds in a fraction using a multidimensional gas chromatography system, comprising: injecting a measurement sample into a first column through a sample inlet of the multidimensional gas chromatography system, separating the naphthalene-based compounds from other hydrocarbon compounds, and then, under the control of a center-cleavage module, injecting the naphthalene-based compounds into a second column and then into a first detector for analysis to obtain a sample detection spectrum; qualitative and quantitative analysis. The method of the present invention can simultaneously obtain the contents of 15 types of naphthalene-based compound monomers in a fraction through a single direct sample injection, and can particularly separate dimethylnaphthalene-based compounds. The method is simple, reliable, and highly reproducible.

The present disclosures are directed to chlorinated tetralin compounds and pharmaceutical compositions.

The present invention relates to oligomeric binaphthalene compounds of formula (I) which are suitable as monomers for the preparation of thermoplastic resins, such as polycarbonate resins, which have beneficial optical and mechanical properties and which can be used in the manufacture of optical devices. In formula (I), X1, X2, Y1, Y2, E1, E2, Ar, R1, R2, R3, R4, m, n, p and q are as defined in the specification.

A method for analyzing naphthalene-based compounds in a fraction using a multidimensional gas chromatography system, comprising: injecting a measurement sample into a first column through a sample inlet of the multidimensional gas chromatography system, separating the naphthalene-based compounds from other hydrocarbon compounds, and then, under the control of a center-cleavage module, injecting the naphthalene-based compounds into a second column and then into a first detector for analysis to obtain a sample detection spectrum; qualitative and quantitative analysis. The method of the present invention can simultaneously obtain the contents of 15 types of naphthalene-based compound monomers in a fraction through a single direct sample injection, and can particularly separate dimethylnaphthalene-based compounds. The method is simple, reliable, and highly reproducible.

The invention discloses a method for synthesizing an axially chiral isoquinoline naphthalene compound based on nickel / light concerted catalysis, and belongs to the field of organic chemical synthesis. According to the present invention, the racemic isoquinoline naphthalene derivative is subjected to kinetic resolution, such that the target axial chiral isoquinoline naphthalene compound is synthesized with high yield and high enantioselectivity; according to the method, an isoquinoline naphthalene derivative and carboxylic acid are taken as raw materials and react under the action of a nickel catalyst, a chiral oxazoline ligand, a photosensitizer and alkali through visible light irradiation, so that efficient synthesis of a target product and efficient recovery of the raw materials are realized. Further, the axially chiral compound can be converted into a corresponding N-oxide catalyst through an oxidation reaction. The catalyst shows excellent catalytic activity and stereoselectivity in an asymmetric allylation reaction. The method has the advantages of mild reaction conditions, simplicity and convenience in operation, wide substrate applicability, high enantioselectivity, good atom economy and the like, and has an important industrial application prospect.

The invention discloses preparation of a polymethacrylate / alkyl naphthalene compound anticoagulant and application of the polymethacrylate / alkyl naphthalene compound anticoagulant in synthetic ester insulating oil, and relates to the technical field of synthetic ester insulating oil. The preparation method comprises the following steps: mixing beta-naphthol with straight-chain alpha-olefin, carrying out alkylation reaction to obtain beta-(C10-C14 alkyl) naphthalene, and compounding polymethacrylate with the beta-(C10-C14 alkyl) naphthalene to obtain the polymethacrylate / alkyl naphthalene compound anticoagulant for the insulating oil. The Mn of the polymethacrylate is 8000-12000g / mol, and the PDI is less than or equal to 1.2; and the straight chain alpha-olefin is one or more of C10-C14 straight chain alpha-olefin. Through synergistic compounding design of narrow-distribution polymethacrylate and beta-alkyl naphthalene, the comprehensive performance of the synthetic ester insulating oil is remarkably improved, and the technical problem that an existing anticoagulant is difficult to consider low-temperature fluidity, oxidation stability and insulating performance at the same time is solved.