48 results about "Terphenyl Compounds" patented technology

An m-terphenyl derivative has a structure of formula (I) or (II):wherein A and B are five-membered heterocyclic compounds containing nitrogen, each of substituents R, R1 and R2 is a member independently selected from the group consisting of H, halo, cyano, trifluoromethyl, amino, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20 heterocycloalkenyl, aryl and heteroaryl. The compound of the present invention may have advantages in good electron affinity, low HOMO and thereby achieving hole blocking and may be used for electron transport material and / or electron injection material.

PCT No. PCT / JP97 / 01261 Sec. 371 Date Sep. 3, 1998 Sec. 102(e) Date Sep. 3, 1998 PCT Filed Apr. 11, 1997 PCT Pub. No. WO97 / 39999 PCT Pub. Date Oct. 30, 1997The present invention provides a compound of the formula (I): wherein R1 is hydrogen or hydroxy and R2 is hydroxy or methoxy, pharmaceutically acceptable salts or hydrates thereof, a process for producing the same, a pharmaceutical composition which comprises the same and a microorganism which belongs to Aspergillus candidus and produces the compound.

The present invention provides p-terphenyl compounds represented by the following general formula (1) and (2):and an electrophotographic photoconductor containing the compound. According to the invention, a charge transporting agent having improved solubility in an organic solvent and an electrophotographic photoconductor excellent in drift mobility and having high sensitivity and high durability are provided.

The invention provides a terphenyl bridged double-benzimidazoles compound as well as a synthesis method and application thereof. The invention takes cyanophoric phenyloboricacid and aromatic dibromide (such as 1,4-dibromo-benzene, 2-fluorine-1, 4-dibromo-benzene, 2,5-dibromo-toluene) as raw materials; under the catalysis of organic palladium and inorganic base, a series of terphenyl compounds with di-cyan can be synthesized by the Suzuki coupling reaction; and then a series of terphenyl bridged double-benzimidazoles compounds can be obtained by adding 1 time of di-cyano-terphenyl compounds and 2-2.4 times of o-phenylenediamine compounds, taking polyphosphoric acid as the catalyst and carrying out the condensation reaction for 6-24 hours under 180-240 degrees C.. The compound can be applied to the fields such as light emitting devices, photovoltaic cells, organic light-emitting diodes and the like as the organic blue-light material or the electron transport material.

The present invention relates to a liquid crystal (LC) medium comprising a terphenyl compound and at least two polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.

An object of the present invention is to provide an electrophotographic photosensitive body which is not impaired in electrophotographic characteristics such as charged potential and residual potential, and which is also excellent in repeating stability. The present invention provides an electrophotographic photosensitive body including a conductive support having thereon a layer containing a specific p-terphenyl compound and at least one additive.

The invention discloses a liquid crystal composition containing a fluoroterphenyl compound and a pentafluoropropenyl ester compound and an application thereof. The liquid crystal composition comprises the following components in parts by weight: 1) 1-30 parts of one or more compounds represented by a general formula I; 2) 1-60 parts of one or more compounds represented by a general formula II; 3) 10-70 parts of one or more compounds represented by a general formula III; and 4) 0-50 parts of compounds represented by general formulas IV-VI. The liquid crystal composition disclosed by the invention has the characteristics of low viscosity, high electrical resistivity, proper optical anisotropy, large elastic constant and the like as well as excellent light stability and heat stability, can reduce the response time of a liquid crystal display so as to solve the problem of slow response of the liquid crystal display, and is applicable to fast-response TFT liquid crystal display devices of TN, IPS and FFS types.

The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a small pretilt angle, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a high contrast ratio, a long service life and so forth. A liquid crystal display device contains the liquid crystal composition having a nematic phase that includes three components, wherein the first component is a specific difluoroalkenyldicyclohexane compound having a small viscosity, the second component is a specific compound having difluoromethyleneoxy bond having a large dielectric anisotropy, and the third component is a specific terphenyl compound having a large optical anisotropy.

The invention discloses a thickened triphenyl compound as well as a preparation method and application thereof. The thickened triphenyl compound has a structure shown as a formula (I). The parent nucleus of the thickened triphenyl compound is thickened triphenyl. Since the three benzene rings are non-coplanar, the thermal stability of molecules is improved. In addition, the non-coplanar structureof the thickened triphenyl can avoid molecular stacking, exciton generation is facilitated, and the luminous efficiency of the material is improved. By setting R1 and R2 substituent groups, the compound shown as the formula (I) has high overall structural rigidity, the thermal stability of the molecules can be improved, and the service life of the material is prolonged. The invention furthermore discloses an organic electroluminescence device. At least one functional layer contains the previous thickened triphenyl compound. The thickened triphenyl compound serves as a host material or a guestmaterial of the luminescent layer, the stability is high, and the luminous efficiency of the device is high.

The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member comprising a charge transport layer that exhibits improved charge mobility transport and comprises novel terphenyl compounds.

The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a small pretilt angle, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a high contrast ratio, a long service life and so forth. A liquid crystal display device contains the liquid crystal composition having a nematic phase that includes three components, wherein the first component is a specific difluoroalkenyldicyclohexane compound having a small viscosity, the second component is a specific compound having difluoromethyleneoxy bond having a large dielectric anisotropy, and the third component is a specific terphenyl compound having a large optical anisotropy.

The present invention relates to a novel terphenyl compound and its use in the prophylactic and / or therapeutic treatment of hypertension and / or fibrosis.

An object of the present invention is to provide an electrophotographic photosensitive body having improved electrophotographic characteristics such as sensitivity and residual potential and also having excellent durability. The present invention provides an electrophotographic photosensitive body having a layer containing at least one specific p-terphenyl compound and at least one polycarbonate resin represented by the general formula (I):in a mass ratio of the p-terphenyl compound to the polycarbonate resin within the range of 2:8 to 7:3.

The Invention discloses a preparation method for a triptyl polymer separation membrane, wherein, it comprises the following steps: take triptycene compound containing active group, dichloride compound and diamino compound containing ether bond as monomers, and conduct polymerization in aprotic organic solvent in the presence of acid-binding agent; pour the obtained polymer solution into deionized water for precipitation after the reaction, filter out precipitates and wash with methanol and dry to get triptyl polymer; dissolve the triptyl polymer in aprotic organic solvent to produce a membrane-casting solution, apply the solution on support and dry to get a triptyl polymer separation membrane. The Invention solves the problem that the reticular polymer material is insoluble, and breaks the restriction for application of such material in separation membrane due to its insoluble and aging features.

The invention discloses a method for synthetizing terphenyl compounds through a palladium catalyzed cascade reaction. The method comprises the following steps: adding iodo-arene and acylamino arene serving as reaction substrates into a mixed solvent composed of trifluoroacetic acid and 1, 2-dichloroethane, adding a palladium catalyst, an oxidizing agent and alkali at the same time, reacting at the temperature of 90-120 DEG C and monitoring the reaction endpoint by using TLC (thin Layer Chromatography); when the temperature is reduced to 25-50 DEG C, adding arylboronic acid and a ligand, continuing reaction at the temperature of 50-90 DEG C and monitoring the reaction endpoint by using TLC. The method disclosed by the invention has the advantages that the terphenyl compounds are synthetized through palladium catalyzed C-H activating and Suzuki cascade reaction which are in series connection, and therefore the cost is low and the consumption of the catalyst is small; the reaction substrates do not needed to be pre-activated; the method can be used for synthetizing various terphenyl compounds; the reaction is easy to operate, the aftertreatment is convenient and simple, the product yield is high, and a high application value is achieved.

The present invention provides a selective suppressor of the IgE production comprising a compound which suppresses the IgE production in a process from a differentiation of a mature B cell into an antibody-producing cell to the production of an antibody and which does not suppress or weakly suppresses the production of IgG, IgM and / or IgA which are produced at the same time, a compound of the formula (I): wherein R<1>-R<13 >are hydrogen, halogen, lower alkyl, lower alkoxy or the like, X is -O-, -CH2-, -NR<14>- or -S(O)p- and Y is lower alkyl, lower alkenyl or the like, a process for producing the same and a pharmaceutical composition comprising the same.

The present invention relates to a polycarboxylic acid organic ligand based on NHPI functionalization and a synthesis method, and belongs to the technical field of organic chemical synthesis. A multi-methyl-containing terphenyl compound is obtained by conducting coupling reaction on 1,4-dibromo-2,3-dimethylbenzene and a phenylboronic acid having methyl at 4-position or 3- and 5-position of a phenyl ring under catalyst of palladium, then methyl is oxidized by potassium permanganate under conditions of 100 DEG C by taking pyridine and water as a solvent so as to generate a multi-carboxylic acidterphenyl structure, then the multi-carboxylic acid terphenyl structure and hydroxylamine hydrochloride are directly heated and refluxed in a pyridine solution for 3 hours, cooling is carried out, rotary evaporation is carried out for solvent removal, water and hydrochloric acid are added for adjusting the pH to be 1 for precipitating a large amount of precipitate, centrifugal treatment, water washing and drying are carried out, so that a relatively pure target product with high yield is obtained. compared with a conventional technology, the method is simple in technology, and the product purity is high. An MOFs material prepared by the organic ligand has wide application prospects because of excellent catalysis efficiency up to 90%-99%, recyclability and other comprehensive performance.

An object of the invention is to provide: a p-terphenyl compound mixture useful as a charge-transporting agent which has improved solubility in organic solvents to thereby diminish a cracking phenomenon, which poses problems concerning photoreceptor characteristics, and can realize an electrophotographic photoreceptor having high sensitivity and high durability; and an electrophotographic photoreceptor employing the compound mixture. The invention relates to: a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by the following general formula (1) and general formula (2) and an asymmetric p-terphenyl compound represented by the following general formula (3) which has both a group of substituents of the compound represented by general formula (1) and a group of substituents of the compound represented by general formula (2); and an electrophotographic photoreceptor containing the compound mixture.

The present invention provides a compound of the formula (I): wherein R<1a>, R<1b>, R<1c >and R<1d >are each independently hydrogen, lower alkyl, lower alkenyl, lower alkynyl, lower alkylsulfonyl or cycloalkyl and the like, R<4 >to R<15 >are hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, carboxy, lower alkoxycarbonyl, amino, nitro, lower alkylsulfonyl, lower alkylsulfonyloxy and the like, which has superior immunosuppressive and / or anti-allergic activity and is useful for a pharmaceutical composition.

An object of the present invention is to provide an electrophotographic photosensitive body which is not impaired in electrophotographic characteristics such as charged potential and residual potential, and which is also excellent in repeating stability. The present invention provides an electrophotographic photosensitive body including a conductive support having thereon a layer containing a specific p-terphenyl compound and at least one additive.

The present invention is a microorganism which is Aspergillus candidus RF-5762 (FERM BP-5882), wherein said microorganism is capable of producing a compound of the following formula (I):wherein R1 is hydrogen or hydroxy and R2 is hydroxy or methoxy.

The present invention relates to aromatic amine-terphenyl compounds and use thereof in organic semiconducting components.

The invention discloses a method for synthesizing a biphenyl compound by using phenol as a raw material in the technical field of organic chemical synthesis, which comprises the following steps: carrying out a mixed reaction process on phenol or substituted phenol, alkali and 50-90% ethanol aqueous solution, slowly introducing sulfonyl fluoride gas, and carrying out magnetic stirring reaction at normal temperature for 4-12 hours, adding arylboronic acid, alkali and a palladium catalyst into a round-bottom flask, continuing to react for 6-12 hours at normal temperature, after the reaction is finished, adding a saturated edible salt solution into the round-bottom flask, carrying out a water quenching reaction process to obtain a reaction mixture, extracting a reaction product from the reaction mixture by using ethyl acetate, combining organic phases, concentrating filtrate, and separating the concentrated filtrate by using column chromatography to obtain analytically pure biphenyl or terphenyl compounds. By using the method, on one hand, the production cost of the biphenyl compound is reduced, and on the other hand, the method also has a wide application prospect in the aspects of synthesis of natural products, medicines, pesticides, herbicides, polymer conduction materials, liquid crystal materials and the like.

The invention belongs to the technical field of microorganisms and in particular relates to a terphenyl compound as well as a preparation method and application thereof. A terphenyl compound 2,5-diphenyl-3-methoxy-6-hydroxy-6-acetonyl cyclohexdienone is extracted from an extract of sceliphron madraspatanum symbiotic actinomycetes, the sceliphron madraspatanum symbiotic actinomycetes belong to edophytic steptomyces, and the 2,5-diphenyl-3-methoxy-6-hydroxy-6-acetonyl cyclohexdienone has a certain inhibition function on tumor cells, so that the 2,5-diphenyl-3-methoxy-6-hydroxy-6-acetonyl cyclohexdienone can be used as application of anti-tumor medicine lead compound. The 2,5-diphenyl-3-methoxy-6-hydroxy-6-acetonyl cyclohexdienone hs an activity inhibition function upon osteosarcoma cells U2OS, osteosarcoma Saos2, mucoepidermoid carcinoma cells and vinblastine-resistant cells.

An object of the invention is to provide: a p-terphenyl compound mixture useful as a charge-transporting agent which has improved solubility in organic solvents to thereby diminish a cracking phenomenon, which poses problems concerning photoreceptor characteristics, and can realize an electrophotographic photoreceptor having high sensitivity and high durability; and an electrophotographic photoreceptor employing the compound mixture. The invention relates to: a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by the following general formula (1) and general formula (2) and an asymmetric p-terphenyl compound represented by the following general formula (3) which has both a group of substituents of the compound represented by general formula (1) and a group of substituents of the compound represented by general formula (2); and an electrophotographic photoreceptor containing the compound mixture.