85 results about "Dibenzothiophene" patented technology

The invention discloses an organic compound, a composition, an electronic device and a display panel. The organic compound has a structure as shown in formula (1): (1); the organic compound provided by the invention is an arylamine compound taking dibenzofuran or dibenzothiophene substituted by a heterocyclic group containing a nitrogen atom, an oxygen atom or a sulfur atom as a core structure, and can have a relatively high refractive index; when the organic compound provided by the invention is used in a covering layer of an electronic device, the refractive index of the covering layer can be effectively improved, so that the luminous efficiency of the electronic device is improved, and the electronic device with excellent performance can be realized.

The invention provides an optical monomer as well as a preparation method and application thereof, the structural general formula of the optical monomer is shown in the specification, in the formula, R1 and R2 are groups with the structural formula shown in the specification; or, one of R1 and R2 is hydrogen, and the other one of R1 and R2 is a group shown in the structural formula; r0 in the group represents hydrogen or methyl. The optical monomer provided by the invention has a (methyl) acrylate group and has the properties of high refractive index and low volume shrinkage; the monomer contains a plurality of aromatic rings with high molar refractive index and low molar volume, sulfur atoms with higher molar refractive index and dibenzothiophene groups with both aromatic rings and sulfur, so that the whole molecule of the monomer has extremely high refractive index, and the whole optical monomer is small in molecular weight and convenient to migrate.

The invention relates to the technical field of catalysts, in particular to a desulfurization catalyst and application thereof in hydrodesulfurization. The desulfurization catalyst adopts a hollow core shell, a weak acid site is constructed on a shell surface, and a boron-containing polymerization network is formed through surface-initiated polymerization; and linear / branched polyethyleneimine complexation is used for synergistically introducing Ni and Mo, in-situ vulcanization is performed after inert atmosphere pretreatment, and a dispersed nickel molybdenum sulfide active phase and shallow and deep double-peak metal distribution are obtained. The structure inhibits excessive hydrogenation while ensuring diffusion and structural stability, promotes a direct desulfurization path, and shows high conversion and high selectivity to 4, 6-dimethyl dibenzothiophene. The catalyst has low hydrogen consumption, high aromatic hydrocarbon retention and cycling stability, and is suitable for deep desulfurization of diesel oil and preparation of ultralow-sulfur fuel.

The present invention belongs to the field of organic photoelectric materials. Disclosed are an organic electroluminescent material, a preparation method therefor, and use thereof. The structure of the organic electroluminescent material is as shown in formula I. The compound provided by the present invention can be used as a doping material for a luminescent layer. By selecting a specific ligand compound and substituting with a specific substituent at the 3-position of dibenzothiophene, the spatial configuration and three-dimensional structure between molecules can be changed, resulting in a designed molecular orientation. The present invention features superior device performance of higher turn-on voltage and low driving voltage, and it mitigates the crosstalk between sub-pixels and endows OLED devices with the advantages of long service life, high efficiency, and low driving voltage.

Novel compounds that contain azadibenzofuran, azadibenzothiophene, and azadibenzoselenophene with fused rings that can be used as a host material in phosphorescent OLEDs are disclosed.

The application discloses a synthesis method of aromatic aldehyde, comprising the following steps: under inert atmosphere, a compound shown in formula I and a compound shown in formula II are reacted in an organic solvent containing a photocatalyst, a nickel catalyst, a ligand, a base and water under blue light irradiation to obtain aromatic aldehyde shown in formula III; formula I, formula II and formula III are structures as follows, ring A is selected from benzene, pyridine, thiophene, furan, pyridazine, indazole, indole, isoquinoline, quinoline, naphthalene, benzothiophene, dibenzofuran or dibenzothiophene; the application generates formyl radicals under the nickel synergistic photo-oxidation and reduction catalytic condition, and the formylation of bromobenzene and its derivatives is realized in a simple and efficient one-pot way, aromatic aldehyde is constructed, and the reaction has the characteristics of cheap and easily available raw materials, mild reaction conditions, controllable synthesis process, high separation yield / yield, green environmental protection, wide substrate applicability and the like.

The application discloses a kind of heterogeneous methylation reagent and preparation method thereof, it is related to organic synthesis technical field.The preparation method of heterogeneous methylation reagent provided by the application, the heterogeneous methylation reagent is heterogeneous aryl sulfide type methylation reagent or heterogeneous aryl sulfide type deuteromethylation reagent, this preparation method is based on the synthesis method of superhigh crosslinking polymer, by aryl sulfide compound with thianthrene as representative is polymerized, the reactivity of material obtained after polymerization still retains monomer, can repeatedly cycle and carry out methylation or deuteromethylation, reach almost 100% atomic utilization efficiency.The traditional homogeneous sulfur methyl methylation reagent such as (DMTT) will produce dibenzothiophene by-product after reaction, and it is very difficult to separate and purify methylated product, and the methylation reagent of heterogeneous of the application only needs simple centrifugation or suction filtration step to realize the separation of product and methylation reagent, greatly improve synthesis efficiency.

According to the arylamine compound with the structure shown in the formula (1), the compound is applied to an organic electroluminescent device as a second hole transport layer material, and performance improvement of the organic electroluminescent device can be achieved. Wherein A1 is selected from a substituted or unsubstituted C6-C14 aromatic ring, A2 is selected from a substituted or unsubstituted C10-C14 aromatic ring, L1 and L2 are respectively and independently selected from a single bond, a substituted or unsubstituted C6-C30 arylene group and a substituted or unsubstituted C3-C30 heteroarylene group, L3 and L5 are respectively and independently selected from a substituted or unsubstituted C6-C30 arylene group, and L5 is selected from a substituted or unsubstituted C6-C30 heteroarylene group. L4 is selected from substituted or unsubstituted dibenzofuranylidene and substituted or unsubstituted dibenzothienyl, and Ar1 and Ar2 are respectively and independently selected from hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C3-C10 cycloalkyl, substituted or unsubstituted C6-C30 aryl and substituted or unsubstituted C3-C30 heteroaryl.

The present invention provides a novel dibenzothiophenium salt compound and a method for producing the same. The present invention also provides a photoacid generator containing the dibenzothiophenium salt compound, a resist composition containing the photoacid generator, a method for forming a resist pattern using the resist composition, and the like. The present invention relates to a compound represented by chemical formula (I), a photoacid generator containing the compound, a resist composition containing the photoacid generator, and a method for forming a resist pattern using the resist composition. (In the formula, R1 and R2 are the same or different and each represent a hydrogen atom, a halogen atom, -CF3, -SO2R3, an alkyl group having 1-10 carbons, -OH, a polymerizable group selected from formula (S-1) to formula (S-4), or an acid-reactive group selected from formula (R-1) to formula (R-7). R3 represents -CF3, -CF2CF3, an alkyl group having 1-10 carbons, or a phenyl group. [A]- represents a trifluoromethanesulfonic acid anion (TfO-) or a halide ion.) (In the formulae, R1a represents a hydrogen atom or a methyl group, and Y represents a single bond or an alkylene group having 1-3 carbons.) (In the formulae, Y is as described above. R51 to R53 may be the same or different, and each represent a hydrogen atom, an alkyl group having 1-20 carbons, an alkenyl group having 2-8 carbons, or an aromatic group having 4-18 carbons, or R 51 and R52 may be linked to each other to form, together with the carbon atoms to which these are bonded, an aliphatic hydrocarbon ring having 3-20 carbons. R54 and R55 are the same or different, and each represent a hydrogen atom or an alkyl group having 1-6 carbons. R56 represents an alkyl group having 1-20 carbons or an alicyclic hydrocarbon group having 3-20 carbons. -CH2- contained in the alkyl group, the aliphatic hydrocarbon ring, and the alicyclic hydrocarbon group may be substituted with -O- or -S-, and d represents an integer from 0 to 4. A case in which R51 to R53 are all hydrogen atoms in formula (R-1), formula (R-3), and formulae (R-5) to (R-7) is excluded.)

The present invention relates to OLED materials containing aza-dibenzofuran or aza-dibenzothiophene; to the use thereof in organic electronic devices; to mixtures containing these materials; and to electronic devices containing these compounds, in particular organic electroluminescent devices containing these compounds as matrix materials, electron-transport materials or hole-blocking materials.

The invention provides a residual oil hydrocracking conversion degree evaluation method, which comprises: 1, determining the content of a characteristic compound in an aromatic hydrocarbon component in a residual oil raw material, and recording the content as D; 2, carrying out a hydrocracking reaction on the residual oil raw material to obtain a hydrocracking liquid product, determining the content of the characteristic compound in the aromatic hydrocarbon component in the hydrocracking liquid product by using the same method as the step 1, and recording the content as E; 3, the residual oil hydrocracking conversion degree is determined according to the E / D value, and the larger the E / D value is, the higher the residual oil hydrocracking conversion degree is; wherein the characteristic compounds are benzene, naphthalene, phenanthrene, dibenzothiophene and alkyl substitutes thereof. The selected characteristic compound has good representativeness, the chromatographic analysis result of the characteristic compound is easy to identify and process, the proposed parameters and the conversion degree of the residual oil have good relevance, and the method has good operability.

The invention belongs to the technical field of organic photoelectric materials, and discloses a compound with an electron transmission function, a preparation method and an organic electroluminescent device. The compound with the electron transport function has a structure as shown in a formula I in the specification. According to the invention, triazine is used as a mother nucleus and is connected with a naphthalene ring through dibenzofuran or dibenzothiophene, and a cyano derivative and aryl or heteroaryl are used as a triazine side chain, so that the obtained compound can be used as a material of an electron transport layer or a hole blocking layer, and has the advantages of reducing driving voltage, improving luminous efficiency and prolonging service life.

The present invention relates to the technical field of blue light electroluminescent materials, and discloses an organic blue light host material, a preparation method thereof, and an application thereof. The structural formula of the organic blue light host material is Formula I, wherein R1 to R8 are each independently selected from an H atom or an electron-donating / withdrawing structural unit. The organic blue light host material of the present invention uses dibenzothiophene as a core, introduces an electron-withdrawing or electron-deficient end group, and forms a D‑π‑A structure, which not only achieves good stability, high fluorescence efficiency, and an appropriate triplet energy level, but also promotes the injection and transport of electrons and holes, which is beneficial for its use as a light-emitting layer material in the preparation of non-doped organic electroluminescent devices, achieving low efficiency roll-off at high current density; at the same time, it can be used as the host of green / yellow / red phosphorescent materials to prepare phosphorescent electroluminescent devices with high efficiency and low roll-off.

This application discloses an organic compound, a mixture, a composition, an organic light-emitting device, and a display panel. The general formula of the organic compound is as follows; the molecular structure of the organic compound consists of two of the following: an electrophilically hybridized nitrogen atom combined with a fluorenyl structure, a dibenzofuran structure, and a dibenzothiophene structure. This gives the organic compound sufficiently strong hole transport and stability. When the organic compound of this application is applied to the light-emitting auxiliary layer, it can effectively block excitons and suppress exciton reverse transport, which is beneficial to improving the luminous efficiency and lifetime of the organic light-emitting device.

The application relates to a high-color-purity near-ultraviolet hot exciton compound with circular polarization properties and application in preparation of circular polarization organic electroluminescent devices, and belongs to the technical field of organic photoelectric materials. The electroluminescent material is a high-color-purity near-ultraviolet hot exciton compound with circular polarization properties. Two pairs of near-ultraviolet enantiomers are successfully designed and synthesized by combining a chiral group binaphthol, a weak donor dithiophene and a weak donor dibenzofuran, and an acceptor benzonitrile. The two pairs of near-ultraviolet enantiomers all show obvious circular polarization luminescence properties and high fluorescence quantum yields. Electroluminescent devices prepared based on the enantiomers all show near-ultraviolet emission, and the CIE coordinates are (0.168, 0.040) and (0.166, 0.040) respectively, and the external quantum efficiencies are 4.3% and 3.4% respectively. The application provides a new perspective for developing near-ultraviolet hot exciton materials with circular polarization luminescence and high color purity, and is favorable for directly realizing 3D and wide color gamut display in the future.

The present disclosure relates to the field of organic electroluminescent materials. An aromatic amine compound and an organic electroluminescent device and an electronic apparatus containing the same are provided. In the aromatic amine compound of the present disclosure, aryl is connected to the 1-position of dibenzofuran (or dibenzothiophene) and arylamine is connected to the 2-position. This method ensures that a benzene ring connected to a nitrogen atom contains ortho substituted aryl, which can improve the mobility of molecules. By changing the conjugated group of substituents to adjust the injection and transport balance of holes between a hole transport layer and an luminescent layer, the luminous efficiency of the device is improved.

This application relates to the field of organic electroluminescent materials technology, providing an organic compound and an organic electroluminescent device and electronic device containing the same. The organic compound of this application comprises a core structure formed by the fusion of 7H-benzo[C]carbazole with dibenzofuran or dibenzothiophene through a pyrrole ring. When this compound is used as a hole-transporting host material in a hybrid host material, it can improve carrier balance in the luminescent layer, broaden the carrier recombination region, improve exciton generation and utilization efficiency, and enhance the luminous efficiency and lifetime of the device.

A method of determining an API gravity of a crude oil includes obtaining a reservoir sample containing the crude oil, separating an aromatic fraction from the reservoir sample, analyzing the aromatic fraction using a gas chromatography mass spectrometry (GC-MS) instrument, determining peak areas and a ratio of 4-methyldibenzothiophene and 1-methyldibenzothiophene, and determining the API gravity of the crude oil in the reservoir sample using an empirical correlation between API gravity and the ratio of 4-methyldibenzothiophene to 1-methyldibenzothiophene. A method of determining productivity of a region of a reservoir includes determining an API gravity of a crude oil in the sample from the region of the reservoir using an empirical correlation between API gravity and the ratio of 4-methyldibenzothiophene to 1-methyldibenzothiophene, and based on the API gravity of the sample, determining the productivity of the region of the reservoir.

There is provided a method for synthesizing an aromatic carboxylic acid compound, comprising providing an aromatic compound or an aromatic compound having at least one carboxyl group; providing a metal hydroxide and at least one carboxylate to produce a mixture; and adding carbon dioxide to the mixture at a pressure from about atmospheric pressure to 1000 psig and sufficient heat for a time sufficient to produce the aromatic carboxylic acid compound. The aromatic carboxylic acid compound may include terephthalic acid, naphthalic acid, thiophenedicarboxylic acid, pyridinedicarboxylic acid, carbazole dicarboxylic acid, and dibenzothiophene dicarboxylic acid.

The invention discloses a salt-tolerant pseudomonas stutzeri capable of efficiently degrading polycyclic aromatic hydrocarbon and application of the pseudomonas stutzeri. The strain is preserved in Guangdong Microbial Culture Collection Center on June 24, 2024, and the preservation number is GDMCC (China General Microbiological Culture Collection Center): 64785. The strain can efficiently degrade phenanthrene and has good environmental adaptability, under the conditions that the pH is 6-8, the salinity is 0-3% and the temperature is 30 DEG C, the degradation rate of 200 mg / L phenanthrene in 48 h can reach 96% or above, and the strain also has efficient degradation capacity for high-concentration phenanthrene. In addition, the strain WH-1 has a certain degradation broad spectrum, and can degrade polycyclic aromatic hydrocarbon fluorene or pyrene, dibenzothiophene and biphenyl. The pseudomonas stutzeri WH-1 obtained by the method disclosed by the invention has a relatively great application potential in the bioremediation of environmental polycyclic aromatic hydrocarbon pollution, and can be applied to the bioremediation of the environmental polycyclic aromatic hydrocarbon pollution.

The invention provides a preparation method of a phosphotungstic acid / silicon dioxide catalyst with a Janus structure and application of the phosphotungstic acid / silicon dioxide catalyst in a heterogeneous oxidation reaction. The catalyst takes silicon dioxide as a carrier, phosphotungstic acid is loaded on the surface, and an n-octane-anhydrous acetonitrile emulsion system can be effectively stabilized. The catalyst shows efficient catalytic activity in oxidative desulfurization and dye degradation reactions, can promote oxidative removal of dibenzothiophene and degradation of Congo red dye, is suitable for a complex heterogeneous reaction system in the thickened oil recovery and processing process, and has wide industrial application prospects.

The invention relates to the technical field of biological medicine, in particular to a compound and a preparation method thereof, a photo-thermal agent and application of the photo-thermal agent in obesity treatment. The compound has a structure as shown in a formula I in the specification, wherein R is selected from at least one of anthracene-containing groups, dibenzothiophene-containing groups or carbazole-containing groups, and X is selected from at least one of halogen atoms, PF6 <-> and BF4 <->. The compound provided by the invention has mitochondrial targeting property and good photothermal conversion capability, and can realize obesity treatment by promoting the browning process of white adipose tissues.

This invention belongs to the field of composite catalytic material preparation technology, and relates to a method for preparing a vanadium-based MOF material encapsulated phosphotungstic acid catalyst and its application in oxidative desulfurization. The method uses 2,6-naphthalenedicarboxylic acid to partially replace terephthalic acid as an organic ligand, mixes it with vanadium trichloride and phosphotungstic acid hydrate in N,N-dimethylformamide, and then hydrothermally treats it at 160–200℃ for 12–16 h, followed by drying and calcination in air at 100–300℃ to obtain an HPW@MIL-47(V) composite catalyst with a regular rod-like morphology. This invention achieves stable encapsulation of phosphotungstic acid in a microporous MOF by moderately expanding the pores with a portion of long-chain ligands. Using tert-butyl hydroperoxide as an oxidant, the catalyst achieves a 100% desulfurization rate for p-dibenzothiophene within 10 min at 60℃ and O / S=4, and also exhibits good removal effects for 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene, with excellent cycle stability and promising industrial application prospects.

A method of making a hydrodesulfurization catalyst having nickel and molybdenum supported on activated carbon is specified. The hydrodesulfurization catalyst produced is mesoporous having an average pore diameter of 4-10 nm and a BET surface area of 250-500 m2 / g. The utilization of the hydrodesulfurization catalyst in treating a hydrocarbon feedstock containing aromatic sulfur compounds (e.g. dibenzothiophene) to produce a desulfurized hydrocarbon stream is also provided.

The present invention relates to a composition which comprises an electron-transporting host and a hole-transporting host, to the use thereof in electronic devices and to electronic devices containing this composition. The electron-transporting host is particularly preferably selected from the class of the triazine-dibenzofuran-carbazole systems or the class of the triazine-dibenzothiophene-carbazole systems. The hole-transporting host is preferably selected from the class of the biscarbazoles.

The application provides a method for separating and recovering sulfides in diesel oil, and relates to the technical field of diesel desulfurization. The method comprises the step of oxidizing desulfurization of diesel oil and an oxidizing agent under the action of a molybdenum-based catalyst. The molybdenum-based catalyst is prepared by heating and dissolving phosphomolybdic acid and triethylene glycol monomethyl ether as raw materials at 80-110 DEG C. The molar ratio of the phosphomolybdic acid and the triethylene glycol monomethyl ether is 1:3000. The method is simple. The liquid molybdenum-based catalyst obtained by heating and dissolving phosphomolybdic acid (PMA) and triethylene glycol monomethyl ether (TEGOCH3) as raw materials is used for oxidizing desulfurization. The dibenzothiophene sulfides can be efficiently removed in a short time. The diesel desulfurization efficiency and desulfurization rate are improved. The ultra-deep desulfurization of diesel oil and the efficient conversion and recovery of sulfides are realized.

The invention relates to the technical field of organic electroluminescence, in particular to a phosphine-containing TADF compound and a preparation method and application thereof, and the general formula structure of the phosphine-containing TADF compound is shown in the specification. Ar is phenyl, deuterated phenyl, biphenyl, partially deuterated biphenyl, terphenyl, partially deuterated terphenyl, naphthyl, 9-phenyl anthryl, pyrenyl, phenanthryl, phenyl, benzanthryl, dibenzofuranyl, dibenzothienyl, 9, 9-dimethyl fluorenyl, 9, 9-dimethylfluorenyl, 9, 9-dimethylfluorenyl, 9, 9-dimethylfluorenyl, 9, 9-dimethylfluorenyl, 9, 9-dimethylfluorenyl, 9, 9-dimethylfluorenyl, 9, 9-dimethylfluorenyl, 9, 9 the structural formula is selected from any one of 9-phenyl fluorenyl, 9-diphenyl fluorenyl, 9-phenyl dibenzo carbazolyl and partially deuterated 9-phenyl dibenzo carbazolyl, or partially deuterated 9-phenyl dibenzo carbazolyl. The phosphine-containing TADF compound is high in molecular rigidity, has the advantages of high glass transition temperature and good thermal stability, is high in fluorescence quantum efficiency, and remarkably improves the luminous efficiency of a device. The organic electroluminescent element using the compound as a host luminescent material has higher luminous efficiency and longer service life.

Polyimide containing dibenzofuran (thiophene) and triphenylamine structure and preparation method and application thereof, and application thereof, the present application relates to polyimide containing dibenzofuran (thiophene) and triphenylamine structure and preparation method and application thereof. In order to solve the problem of low solubility of aromatic polyimide in organic solvent, poor optical contrast, slow response time and poor capacitor performance, 2,8-dibromodibenzofuran (thiophene) is used as raw material, and 4-methoxy-4'-nitrodiphenylamine is reacted to obtain a new precursor containing dibenzofuran (thiophene) and triphenylamine structure. The nitro group is reduced to obtain a diamine monomer, which is polymerized with dianhydride to form a new high-performance polyimide. At the same time, the polymer has excellent electrochromic performance, including excellent cycle stability, fast switching time, high optical contrast and low voltage start. It also has excellent capacitor performance, including excellent specific capacity and cycle stability. The present application is expected to be applied in the field of electrochromic supercapacitor.

The present invention relates to a composition comprising an electron transport host and a hole transport host, the use thereof in electronic devices and electronic devices comprising said composition. The electron transport host is more preferably selected from the class of triazine-dibenzofuran-carbazole systems or triazine-dibenzothiophene-carbazole systems. The hole transport host is preferably selected from the class of bis-carbazoles.

The present invention relates to an organic electroluminescent device comprising a mixture comprising an electron-transporting host material and a hole-transporting host material, and to a formulation comprising a mixture of the host materials and to a mixture comprising the host materials. The electron-transporting host material corresponds to a compound of the formula (1) from the class of dibenzofuran or dibenzothiophene derivatives containing a substituted pyridine, pyrimidine or triazine unit and a substituted further dibenzofuran or dibenzothiophene unit.