38 results about "Dibenzothiophene" patented technology

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.

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 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.

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.

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 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.

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 invention provides an organic electroluminescent material and an organic electroluminescent device, and belongs to the technical field of organic electroluminescent materials, the organic electroluminescent material has a structure as shown in a formula I. The organic electroluminescent material takes 9-phenyl-9-methylfluorene as a core and is connected with arylamino, and the structure of the organic electroluminescent material is as shown in a formula I. The organic electroluminescent material is prepared from 9-phenyl-9-methylfluorene, 9-phenyl-9-methylfluorene, 9-phenyl-9-methylfluorene and 9-phenyl-9-methylfluorene. Wherein one of the arylamine side chains is 3-substituted dibenzothienyl, and the other side chain Ar1 is selected from several specific groups. When the material is applied to a laminated OLED device as a light-emitting auxiliary layer material, the technical effects of reducing the driving voltage, prolonging the service life of the device and greatly improving the light-emitting efficiency are achieved.

This invention discloses an amino compound with a benzophenanthrene furan group and an organic light-emitting device, selected from compounds of formula 1: Al-A 10 One of the groups is derived from Formula 2, where * represents a bond connected to the basic skeleton in Formula 1. When A2 is derived from a group in Formula 2, L1 is a para-phenylene group, R1 and R2 are derived from single bonds, substituted or unsubstituted C5-C24 aromatic hydrocarbon groups, substituted or unsubstituted C5-C24 heteroaromatic hydrocarbon groups, and Ar1 and Ar2 are derived from C5-C30 aromatic hydrocarbon groups, substituted or unsubstituted C5-C30 heteroaromatic hydrocarbon groups. In this invention, the triarylamine is para-linked to a transition benzene ring with benzo[a]phenanthrenefuran. This benzene ring linkage enhances the overall stability of the target molecule, strengthens the conjugation of the molecule, and increases the stacking property of the molecule in organic light-emitting materials. This invention also sets phenanthrene, naphthyl, or dibenzothiophene groups on the other two substituents of the triarylamine, affecting the electron affinity and electron transport properties of the triarylamine and further extending its lifespan.

The present application relates to light-emitting devices comprising a hole-transporting zone comprising two layers each comprising a compound of group A, a compound of group B or any combination thereof, wherein the compound of group A comprises one or two amine groups and the amine groups comprise a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzothianthene moiety or any combination thereof, and the compound of group B does not comprise an amine group and comprises a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzothianthene moiety or any combination thereof.

A compound of Chemical Formula 1:where: A is a naphthalene ring, B is a C6-20 aromatic ring, and A and B are fused with a neighboring pentagonal ring; X are each independently N or CR, and at least one X is N; R1 is hydrogen, deuterium, tritium, substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C2-60 heteroaryl including O or S, and R2 is hydrogen, deuterium, tritium, or substituted or unsubstituted C2-60 heteroaryl including O or S, but neither R1 or R2 is 4-dibenzofuranyl or 4-dibenzothiophenyl, and R1 and R2 are not simultaneously hydrogen, deuterium, or tritium; Ar1 and Ar2 are each independently substituted or unsubstituted C1-60 alkyl, substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C2-60 heteroaryl including one or more of N, O and S; and the other substituents are defined in the specification; and an organic light emitting device including the same.

The invention relates to the technical field of display, in particular to an organic electroluminescent compound and application thereof. The organic electroluminescent compound has a structure as shown in the following formula (1), substituent groups are introduced into different positions where dibenzofuran or dibenzothiophene is connected with triazine, the molecular rigidity of the compound is kept through a twisted space structure, effective accumulation beneficial to charge transfer among molecules is promoted, and the organic electroluminescent compound has the advantages that the organic electroluminescent compound has a good anti-radiation effect, and the anti-radiation performance of the compound is improved. By inhibiting the built-in electric field of the device, capacitance is reduced, intramolecular hydrogen bonds and weak interaction are balanced to improve the physical and chemical stability, so that a more stable structure can be obtained, the better thermal stability is improved, the conjugation range is expanded to a certain extent, the electron transfer balance of the device is promoted and improved, and the performance in all aspects is improved.

A photochromic composition having at least one photochromic naphthopyran-based component with R′ and R″ groups selected from hydrogen, alkyl, fluorinated alkyl, alkenyl, alkynyl, alkylaryl, cycloalkyl, alkoxy, halogen, amine, carbonate ester, carboxylate, aryl, substituted aryl, heteroaryl, substituted heteroaryl or a heterocyclic group and Ar′ and Ar″ groups selected from unsubstituted or substituted cyclic five-membered or six-membered structures including benzene, pyridine, thiophene, furan, carbazole, triphenylamine, dibenzothiophene, dibenzofuran, fluorine, naphthalene, anthracene and pyrene. The photochromic composition is excitable under a visible light range to produce a color change. A second photochromic naphthopyran-based component with a different thermal decay rate constant (k) may further be included in the photochromic composition. The photochromic composition is incorporated into color-changing inks and polymers.

The application relates to the technical field of semiconductor material preparation, and discloses a preparation method of n-type semiconductor diamond. The method takes a crystal face diamond (110) as a substrate, takes diphenylthiophene as a sulfur source, introduces zinc nitrate and 2-methyl imidazole into the sulfur source methanol solution according to a specific ratio, magnetically stirs at room temperature to prepare a diamond substrate loaded with a ZIF-8 template of the sulfur source, carries out programmed pretreatment on the diamond substrate loaded with the ZIF-8 template of the sulfur source to obtain a diamond substrate loaded with the sulfur source, grows a sulfur-doped layer and a diamond cap layer through MPCVD epitaxy, and then carries out vacuum annealing to obtain the n-type semiconductor diamond. The method realizes accurate doping of the sulfur source, the prepared n-type semiconductor diamond has excellent semiconductor performance, and a reliable preparation scheme is provided for the research and development of a diamond-based n-type semiconductor device.

The invention relates to a small molecular material taking p-dibenzo [b] thienyl benzene as a substrate, a preparation method thereof and application of the small molecular material in an OLED (Organic Light Emitting Diode), belonging to the technical field of new materials. The substrate p-dibenzo [b] thienyl benzene and the derivative thereof have a larger conjugate plane structure, can induce stronger intermolecular interaction, not only can reduce a hole transport energy barrier and significantly optimize hole migration performance, but also can promote molecules to form more ordered accumulation on an ITO substrate, so that the hole transport efficiency is improved. Therefore, the problems of aggregation and grain boundary blockage of the material in the film forming process are avoided; a phosphoric acid anchoring group is introduced into the material, so that firm combination of the hole transport material and the surface of an ITO substrate can be realized, and the HOMO energy level better matched with other layers of the device is further guaranteed. When the material is used as a core component of an OLED hole transport layer, molecular aggregation can be effectively inhibited, the thermal stability of a film is enhanced, the conductivity and the hole injection capability are improved, and finally the brightness, the efficiency and the long-term stability of an OLED device are remarkably improved.

A compound is set forth as formula (1) as defined herein. A mixture and composition may include the same compound. An organoelectroluminescent device may include an organic layer that includes the compound. A process for depositing the electroluminescent device includes depositing the organic layer by gas phase deposition or from solution.

This invention provides a compound with hole-blocking function, an organic electroluminescent device containing the same, and their applications. The compound with hole-blocking function has the structure shown in Formula I. The triazine derivative is linked to naphthalene substituted with dibenzofuran or dibenzothiophene via biphenyl. The resulting compound can be used as a material for the hole-blocking layer, and has the advantages of reducing driving voltage, improving luminous efficiency, and extending service life.

The invention discloses a synthesis method of an asymmetric dialkoxy fluorine-containing dibenzothiophene compound. Comprising the following steps: S1, reacting 2, 3, 4-trifluoronitrobenzene with sodium hydrosulfide to generate 2-sulfydryl-3, 4-difluoronitrobenzene; s2, carrying out etherification reaction on the product in the step S1 and 2, 3-difluorobenzene alkyl ether in an alkaline environment to generate 1, 2-difluoro-3-[(2-fluoro-3-alkoxy phenyl) sulfenyl]-4-nitrobenzene; s3, a product obtained in the step S2 and hydrazine hydrate are subjected to a reduction reaction under the catalysis of activated carbon, and 1, 2-difluoro-3-[(2-fluoro-3-alkoxy phenyl) sulfenyl]-4-amino benzene is obtained; step S4, diazotization cyclization reaction: carrying out diazotization and intramolecular cyclization reaction on the product obtained in the step S3 and sodium nitrite in dilute acid to obtain 3-alkoxy-4, 6, 7-trifluorodibenzothiophene; and S5, carrying out an alkoxylation reaction on the product obtained in the step S4 and alkyl alkoxide to obtain a target product. According to the method disclosed by the invention, the use of an expensive phenylboronic acid raw material and a foul thiophenol intermediate is avoided, and low-cost and high-yield synthesis is realized by utilizing the easily convertible property of nitryl and the high efficiency of intramolecular cyclization.

The invention provides a host material, a preparation method thereof and an organic electroluminescent device, the structural general formula of the host material is a chemical formula I. The structure of the host material is composed of a dibenzofuran (or dibenzothiophene)-carbazole-o-phenylene-triazine group, multiple targets of carrier transport balance, high triplet state energy level, good thermal / morphological stability, inhibition of exciton quenching and the like are achieved on the molecular level. And finally, the advantages of high luminous efficiency, low driving voltage, low efficiency roll-off, long service life and the like are embodied on the device level.

The invention belongs to the technical field of organic electroluminescent materials, and particularly relates to a compound with a terphenyl structure and an organic electroluminescent device thereof, the series of compounds adopt dicyano as acceptors and condensed rings such as dibenzothiophene containing heavy atoms such as sulfur and selenium as donors, and are connected to ortho-positions of carbazole, so that the compound is more distorted, and the organic electroluminescent device is more stable. The organic semiconductor material can reduce intermolecular accumulation, more effectively realize conversion of triplet-state excitons, reduce annihilation of the triplet-state excitons and other processes, can effectively enhance spin-orbit coupling and improve an anti-intersystem crossing coefficient, is beneficial to improvement of the radiative transition radiation rate of the material, balance of radiative transition attenuation and balance of transfer and conversion of the excitons, and has a good application prospect. High fluorescence quantum efficiency is achieved, devices prepared from the series of compounds can efficiently transfer exciton energy to doped materials, and higher-efficiency green light emission and longer device service life are achieved.

Crystals of (((R)-12′-((S)-7,8-difluoro-6,11-dihydrodibenzo[b,e]thiepin-11-yl)-6′,8′-dioxo-6′,8′,12′,12a′-tetrahydro-1′H,4′H-spiro[cyclopropane-1,3′-[1,4]oxazino[3,4-c]pyrido[2,1-f][1,2,4]triazin]-7′-yl)oxy)methyl methyl carbonate, i.e. compound of formula (1) or a solvate thereof and a preparation method therefor. The crystals include crystal form A, crystal form B, crystal form C, crystal form D, crystal form E, crystal form F, and single crystal. The crystal of the compound of formula (1) or a solvate thereof can be individually used for clinical treatment or in combination with other anti-influenza drugs such as neuraminidase inhibitors, nucleoside drugs, or PB2 inhibitors, are capable of clinically curing influenza patients quickly, and have very good activity and good bioavailability compared to existing pyridone derivatives. In addition, the stability, hygroscopicity, and storability of the crystals meet the requirements for pharmaceutical use.

This invention provides novel organic compounds suitable as host materials for light-emitting devices, particularly for phosphorescent light-emitting devices. [Solution] The present invention provides an organic compound in which a carbazolyl group, a dibenzothiophenyl group, a dibenzofuranyl group, or a diphenylamino group is bonded to the 3-position of an imidazophenantholidine via an arylene group, or an organic compound in which a diphenylamino group is bonded to the 3-position of a triazolophenantholidine via an arylene group.