68 results about "2-Phenylpyridine" patented technology

The invention provides phosphorescent organometallic complexes. The complexes of the invention may be prepared as films further comprising a charge carrying host material may be used at an emissive layer in organic light emitting devices. In one embodiment, the complex is a hyper-branched organoiridium complex comprising a 2-phenylpuridine ligand wherein the phenyl ring or the pyridine ring contains 4 non-hydrogen substituents. In another embodiment, the complex is an organoiridium complex comprising a substituted 2-phenyl pyridine ligand, wherein at least one substituent contains a spiro group.

The invention relates to a sensing material for detecting the halogenated hydrocarbon, which is characterized in that the center is the divalent platinum; the two ligands coordinated with the platinum are 2-phenylpyridine; and simultaneously, the phenyl is provided with the aryl substituent. The sensing material comprises platinum, 2-phenylpyridine ligands and aryl on the phenyl or oligomer and polymer further constructed by aryl. The aryl comprises the further constructed oligomer or polymer as well as ramification of aryl. The detection method is realized through detecting the change of the fluorescence intensity of the luminescent material by using fluorescence means. The provided luminescent material is applicable to the detection of the volatile halogenated hydrocarbon.

The invention provides a green organic electroluminescent device. The device adopts tri-(2-phenylpyridine) synthetic iridium as a green organic luminescent material. The luminescent material has both high luminescent efficiency and good electron transmission capacity; a range of a luminescent zone is limited by optimizing doping concentration of the luminescent material in a cavity leading luminescent layer and an electron leading luminescent layer respectively; the equilibrium distribution of electrons and cavities at a compounding zone is ensured; and the efficiency reduction of the device is retarded, so that the device obtains high-luminance green electroluminescence at a lower operating voltage, that is the efficiency stability and the luminance of the green organic electroluminescent device are improved, the working voltage of the device is reduced, the thermostability of the device is improved, and the life of the device is prolonged.

The invention relates to a preparation method of a phosphorescent diode with an electronic transmission layer doped with lithium fluoride. The phosphorescence diode has a eight-layer planar structure that comprises an anode layer, a hole transmission layer, a luminescent layer I, a luminescent layer II, a hole barrier layer, an electronic transmission layer, an electron injection layer and a cathode layer; thris (2-phenylpyridine) iridium is utilized to carry out phosphorescent dye doping on the luminescent layer I and the luminescent layer I so as to form a double luminescent layer; and lithium fluoride is utilized to carry out doping on the electronic transmission layer. The preparation of the phosphorescent diode is carried out in a vacuum vapor plating furnace, wherein the vacuum degree is less than or equal to 0.0004Pa and the temperature in the furnace is from a value by adding 25 DEG C with 2 DEG C to a value by subtracting the 2 DEG C from the 25 DEG C. Processes of heating and sublimation of vapor plating materials, form transformation, vapor deposition and film growth are carried out so as to form a dual-luminescent layer phosphorescent diode with the electronic transmission layer doped with the lithium fluoride, wherein the phosphorescent diode has a thickness of 261.2 nm. Besides, an emission wavelength is 516 nm; a color coordinate is expressed as that x is equal to 0.3151 and y is equal to 0.6054; green lights is emitted; and a maximum value of current efficiency is 39. 03cd / A. Moreover, compared with the prior art, the technology employed in the invention enables luminous efficiency of the diode to be improved by 54%; an initial brightness of a packaging device is 500cd / m <2>; and the device service life is 320h; and the service life of the diode can be improved by 3.57 times.

The invention discloses an iridium complex with four types of different-site and different-quantity fluoro-substituted 2-phenylpyridine serving as main ligands, and bi(bisubstituent phenyl phosphoro)amine serving as an auxiliary ligand. The formula of the iridium complex is shown in the specification. Emission peaks of an EL (electroluminescence) spectrum of an electroluminescence device prepared from the iridium complex are respectively 497nm, 497nm and 495nm; maximum current efficiencies are respectively 43.95cd / A, 66.36cd / A and 37.36cd / A; maximum power efficiencies are respectively 28.51 lm / W, 48.20 lm / W and 19.11 lm / W; maximum power efficiencies are respectively 38827cd / m<2>, 47627cd / m<2> and 40319cd / m<2>. The invention discloses a preparation method of the iridium complex.

The invention provides synthesis of a binuclear liquid crystal polarized cyclometalated platinum complex by using 2,7-bi[4'-(4''-alkoxymethyl-2''-pyridine)-phenyl]-9,9-bi(dodecyl) fluorene as cyclomedtalating ligand and bi[(4-dodecoxy) benzoyl]methane as anionic ligand, and research of polarized fluorescence and liquid crystal performance thereof. In the method, alkoxymethyl is introduced to the 5-position of a pyridine ring of the traditional cyclomedtalating ligand 2-phenylpyridine molecule; a C N cyclomedtalating ligand of double alkoxy chain with dual coordination center and liquid crystal performance through fluorene bridge connection is constructed; a novel binuclear cyclometalated platinum complex is synthesized by using the bi[(4-dodecoxy) benzoyl]methane as the anionic ligand and the 2,7-bi[4'-(4''-alkoxymethyl-2''-pyridine)-phenyl]-9,9-bi(dodecyl) fluorene liquid crystal material as the cyclomedtalating ligand. Compared with the traditional cyclometalated platinum luminescence material using the functional phenylpyridine as the cyclomedtalating ligand, the binuclear liquid crystal polarized cyclometalated platinum complex not only has high-efficiency luminescence performance, but also has good liquid crystal performance and polarized fluorescence performance. The binuclear liquid crystal polarized cyclometalated platinum complex of the invention provides a new way for obtaining the organic electrophosphorescent material with liquid crystal polarization.

The invention relates to the technology of phosphorescence chemical probe, in particular to a water-soluble cationic iridium complex phosphorescence probe and a preparation method. Iridium metal is not used for cell marking in the prior art. The structural formula of the water-soluble cationic iridium complex phosphorescence probe of the invention is as shown in the attached figure. The preparation of the invention is as follows: preparing 2-phenylpyridine iridium dichlorendic complex Ir2 (ppy) 4Cl2; preparing 3, 8-diacetylene o-phenanthroline; preparing 3, 8-diacetylene o-phenanthroline iridium 2-phenylpyridine complex; and preparing the objective complex. The invention has the advantages that with good water solubility and lipid solubility, the complex can quickly enter cells; and with long luminescent lifetime of iridium complex, the interference of the background fluorescence can be effectively eliminated through the time-resolved fluorescence technique, and thereby improving the detection sensitivity can be improved.

The invention discloses a thienyl phosphorescent iridium complex. A preparation method for the thienyl phosphorescent iridium complex comprises the following steps: weighing 3,8-dibromoiridium phenanthroline-2-phenylpyridine complex (or 3,8-dibromoiridium phenanthroline-2-phenylquinoline complex) and 2-thiophene pinacol borate at a molar ratio of 1:(0.1-12), and adding tetra(triphenyl phosphine) palladium with the molar percentage of 1-20%; adding sodium carbonate aqueous solution with a proper concentration of 2 M, adding an appropriate amount of DMF (dimethyl formamide), and stirring at a temperature of 25-75 DEG C for 1-75 hours; after the reaction is finished, cooling the reaction solution to a room temperature, pouring the reaction solution in water, and stirring for 1-30 minutes; extracting a water phase by use of dichloromethane, combining an organic phase, and drying the organic phase by use of anhydrous magnesium sulphate; filtering the solution, removing the filtrate, and removing a solvent in vacuum to obtain a crude product. The iridium complex obtained by the preparation method disclosed by the invention is used for generating singlet oxygen from a steady-state near-infrared light, good in stability, and expected to be applied in the aspect of near-infrared photodynamic therapy.

The invention discloses a method for preparing o-trifluoromethyl phenylamine and derivatives thereof. According to the method, phenylamine or a phenylamine derivative serving as raw material reacts with a trivalent iodine reagent compound 2 in a solution under the protection of argon or nitrogen and illumination condition in the presence of tri(2-phenylpyridine)-iridium [Ir(ppy)3] serving as a catalyst to produce o-trifluorophenylamine or derivatives thereof 3, wherein the trivalent iodine reagent compound 2 has a structure shown in the specification. The method is mild in reaction conditions, the amino does not need to be protected, and trifluoromethyl substituted phenylamine or phenylamine derivatives can be directly obtained.

The invention discloses application of an iridium complex in preparing mitochondria targeted anti-tumor drugs. The structural formula of the iridium complex is [Ir(ppy)2(HPIP)]C1, wherein ligand represented by ppy is 2-phenylpyridine, ligand represented by HPIP is 3-(1H-imidazole[4,5-f][1,10]phenanthroline-2-yl)phenol. The iridium complex has the high inhibiting effect on human tumor cells HeLa, HepG2, A-549 and a cisplatin resistant strain CP / R-A549, mitochondria in tumor cells can be stored up, tumor cell apoptosiss can be induced, and the iridium complex can serve as the new anti-tumor drugtaking tumor cell mitochondria as target sites.

Electro luminescent metal, e.g. Ir, complexes are disclosed. The metal complexes comprise at least one ligand Ll and at least one ligand L2, wherein ligand Ll is a 2-phenylpyridine ligand (I), comprising a phenyl ring (A) and a pyridine ring (B). The integers 2 to 9 denote positions in which substitutions can be made, and by the use of different substituents, e.g. 2,4-difluoro and 7-N(CH3)2, the emission wavelength of the complex may be tuned. The ligand L2 may e.g. be a compound of the following formula (II).

The invention discloses a phosphorescence chemical sensor and an application thereof. The phosphorescence chemical sensor is a compound based on an iridium composition containing a main ligand and an auxiliary ligand, wherein the main ligand is 2-phenylpyridine, and the auxiliary ligand is a dithio-carbamic acid derivate. The structure general formula of the phosphorescence chemical sensor is shown in a formula I. The phosphorescence chemical sensor achieves the goal of detecting metal ions by the color change of the solution or the film of the sensor, the change of an ultraviolet visible absorption spectrum and the change of a phosphorescence emission spectrum. The phosphorescence chemical sensor has the characteristics of the high phosphorescence response speed and big amplitude, is easy to differentiate from the fluorescence background and can be identified by naked eyes. The sensor has high identification sensitivity on the metal ions and high stability, and thereby, the sensor can be applied to the detection of the metal ions in various environments.

The invention relates to a polymer electroluminescent material containing an amide iridium metal complex and a preparation method thereof, which belong to the synthetic material and electroluminescent material technology field. The invention discloses the polymer electroluminescent material containing the amide iridium metal complex, the metal complex of the polymer adopts a metal complex containing a 2-phenylpyridine structure, the molecular structural formula is (L<2>)2Ir(MA), wherein the L<2> signifies bidentateligand containing the 2-phenylpyridine, and the MA signifies bidentateligand containing amide structure and double bonds. The synthesized polymer is divided into two types, one is the homopolymer Poly (L<2>)2Ir(MA), of the metal complex, or the other is the homopolymer Poly VK-(L<2>)2Ir(MA) of the metal complex and the N-vinyl carbazole (N-VK). All the polymers containing the iridium metal complex synthesized in the invention have higher luminescence performance in the solution at room temperature, and can be used as the functional material in organic electroluminescent devices.

The invention discloses a method for preparing erivedge by adopting a microchannel reaction device. The method comprises the following steps: by using 2-phenylpyridine as a starting material, preparing an important intermediate 4-chloro-3-(pyridine-2-yl) aniline by metal catalysis amination, oxidation and reduction reaction in sequence, finally carrying out oxidation and amidation reaction with 2-chloro-1-methyl-4-(methylsulfonyl)benzene by two-step continuous flow in the novel microchannel reaction device, and preparing the erivedge. The microchannel reaction device has the characteristics ofcheap price, convenience in transportation and cleaning, higher heat and mass transfer efficiency and easier industrial amplification and the like. Compared with the prior art, the synthesis method has the advantages that the starting material is simple and cheap and is easy to obtain, the process is concise, the production cost can be effectively reduced, and the adaptability to industrial production is achieved.

The invention relates to iridium complexes having novel main ligands and taking tetraphenylphosphonium imide as an auxiliary ligand. The main ligands in the series of iridium complex molecules are (R-)4-piperidine-2-phenylpyridine or (S-)4-piperidine-2-phenylpyridine derivatives containing chiral phenylpyridine groups. Compared with an iridium complex which is widely researched and reported, the novel iridium complex covered by the invention has the advantages of high light-emitting efficiency, small luminescent quenching effect caused by concentration factors, high electronic mobility, stable chemical properties, easiness for sublimation and purification, and the like; in addition, the device is excellent in performance. By modifying a molecular structure of the main ligand, the luminous intensity and efficiency of the complex can be adjusted within a wavelength range of visible light, which provides convenience for design and production of an organic light emitting diode display and an illuminating light source. Meanwhile, the series of novel iridium complexes introduced in the invention are simple in synthesis method, higher in yield and flexible in chemical modification aiming at the ligands.

The invention discloses a preparation method of a cyclooxygenase-2 inhibitor parecoxib. The method comprises the following steps that 1, benzaldoxime reacts with 1-phenylpropyne in the presence of tris(2-phenylpyridine)iridium (III), triethylamine and magnesium oxide under the illumination condition to obtain 5-methyl-3,4-diphenylisoxazole; 2, a stirring reaction is conducted on 5-methyl-3,4-diphenylisoxazole obtained in the first step and chlorosulfonic acid, dichloromethane extraction is conducted after the reaction is completed, a dichloromethane phase is directly added into ammonium hydroxide, an organic phase is separated, water washing, concentrating and ethanol recrystallization are conducted, and valdecoxib is obtained; 3, valdecoxib obtained in the second step reacts with propionic anhydride in the presence of triethylamine, and parecoxib is obtained. The preparation method of parecoxib is simple in step, high in yield and simple in posttreatment.

The invention discloses an anionic type iridium complex for oxygen sensing, and a preparation method and the application of the anionic type iridium complex. The anionic type iridium complex can be expressed by a general formula: [Ir(C-N)2(CN)2]-nBuN+, wherein a counter ion is a tetrabutyl ammonium ion nBuN+; a C-N ligand is selected from 2-phenylpyridine (ppy), 2,4-difluoro phenylpyridine (dfppy), 2-thiophene-quinoline (thq), 2-phenyl-quinoline (bqu) and 1-phenylisoquinoline (piq), and a molecular structure formula of the C-N ligand is as shown in the description. A preparation process of the anionic type iridium complex is simple and is easy to operate. The anionic type iridium complex can be used in the field of the oxygen sensing and has higher response sensitivity on oxygen and better selectivity; the anionic type iridium complex can also be used in the field of bio-sensing, can be used for carrying out oxygen detection in a cell or a living body and has good biocompatibility; the anionic type iridium complex has the characteristics of long phosphorescence lifetime, large Stokes shift, high light stability and the like, has relatively-sensitive luminous intensity on the oxygen and is a good oxygen probe.

The invention relates to a novel 2-phenylpyridine-platinum (IV) precursor anti-cancer complex as well as a synthesis method and the application of the complex in preparing anti-tumor medicines, relates to a phenylpyridine-platinum complex and aims to obtain an efficient and low-toxicity anti-cancer substance. The novel 2-phenylpyridine-platinum (IV) precursor anti-cancer complex has structural formulae as shown in Pt1 and Pt2. The synthesis method of the complex comprises the following steps: dissolving ligand 2-phenylpyridine-H-PPy or 2-[4-(trifluoromethyl) phenyl] pyridine H-TFPy and a metallic salt K2PtCl6 into a mixed solution of methanol and dichloromethane, and carrying out a coordination reaction, so as to obtain a yellow target product, namely a 2-phenylpyridine-platinum (IV) precursor anti-cancer complex Pt1 or Pt2. The two 2-phenylpyridine-platinum (IV) precursor anti-cancer complexes Pt1 and Pt2 provided by the invention show remarkable in-vitro anti-tumor activity and toxicity selectivity as a whole, in addition are cheap in raw materials, convenient in synthesis and economic, have good potential medicine values and have the potential of being applied to preparation ofvarious anti-tumor medicines.

The invention relates to an organo-boron group-containing phosphorescent organic electroluminescent material and a preparation method thereof. The synthetic route includes: (1) synthesis of an organo-boron group-containing 2-phenyl pyridine organic ligand; (2) synthesis of a metal iridium dimer complex; and (3) synthesis of organic boron group high efficiency red, green and blue light phosphorescent organic electroluminescent phosphorescent materials of the organo-boron group. By introducing the organo-boron group into the traditional 2-phenyl pyridine ligand, the materials makes use of the special electronic properties of the organo-boron group to adjust the luminescent properties of the electrophosphorescence material, so that the color purity and luminous efficiency of the red light, green light and blue light organic electrophosphorescence materials can be well balanced.

The invention discloses a 2-phenylpyridine dual-core palladium (II) complex. The structural formula of the complex can be seen in the description. The invention further discloses a preparing method ofthe 2-phenylpyridine dual-core palladium (II) complex. The method includes the steps of evenly mixing glacial acetic acid, palladium acetate and 2-phenylpyridine, conducting complete reaction under stirring and heating, conducting cooling to the room temperature, removing glacial acetic acid to obtain reddish brown liquid, adding a polarity solvent, and conducting standing until yellow crystals are separated out thoroughly to obtain the 2-phenylpyridine dual-core palladium (II) complex. The invention further discloses application of the 2-phenylpyridine dual-core palladium (II) complex. The 2-phenylpyridine dual-core palladium (II) complex has remarkable in-vitro antineoplastic activity and cytotoxicity selectivity and is simple in preparing method and easy to industrially produce.

The invention discloses a naphthoimidazopyridine compound and a preparation method thereof. According to the invention, 2-phenyl-pyrido[1,2-a]imidazole and diaryl acetylene are adopted as raw material; and with a catalysis / oxidation double C-H activation method, the naphthoimidazopyridine compound is successfully prepared. The synthesis method is simple, and yield is high. The compound provided by the invention has good solubility in different organic solvents, and is easy to purify. Because multi-substituted condensed ring compound is a type of important framework structure and is widely applied in the fields of organic semiconductor materials and luminescent materials, the compound and the method provided by the invention have great application value and social economic benefit. The compound and the method has certain potential to be widely applied in the field of organic materials.

The invention relates to a novel barium metal organic coordination polymer. A structural formula of the novel barium metal organic coordination polymer is {Ba3[Ir6(ppy)12(dcbpy)6(H2O)4]}.10H2O, wherein the ppy is 2-phenylpyridine, and the dcbpy is 2,2-bipyridine-4,4-dicarboxylic acid ions. The novel barium metal organic coordination polymer disclosed by the invention has the beneficial effects that {Ba3[Ir6(ppy)12(dcbpy)6(H2O)4]}.10H2O crystals are generated; good heat stability and excellent luminous performance are obtained, the fluorescence lifetime is 9.86 mus, and the quantum yield is 16 percent; the maximum excitation position of the novel barium metal organic coordination polymer is in a 468-nm position, and the novel barium metal organic coordination polymer is a photoluminescence material which is capable of utilizing solar energy.

The invention discloses carbazole group-containing azafluorene orange-light ionic-type iridium (III) complexes including hexafluorophosphoric acid-[di(2-phenylpyridine)]-[9,9-di(9-ethyl carbazole-3-yl)-4,5-diazafluorene] iridium (III) (Ir1), hexafluorophosphoric acid-[di(2-phenylpyridine)]-[9,9-di(9-ethyl hexyl carbazole-3-yl)-4,5-diazafluorene] iridium (III) (Ir2), and hexafluorophosphoric acid-[di(2-phenylpyridine)]-[9,9-di(9-phenylcarbazole-3-yl)-4,5-diazafluorene] iridium (III) (Ir3). When doping concentration of the complex Ir1 is 10%, maximum illumination brightness 907cd / m2 and current efficiency 8.35cd / A are achieved, the maximum peak of an electroluminescence spectrum is observed at 568nm, color coordinates (CIE) x=0.45, and y=0.53, orange light is emitted, and relatively weak efficiency roll off of parts is observed. Electroluminescence devices made from the complex Ir2 and Ir3 possess similar performance.

The invention discloses a preparation method of a 2-(3-halogen phenyl) pyridine derivative. The preparation method comprises the following steps: dissolving 2-phenylpyridine or substitutive 2-phenylpyridine (I) and N-halogenated butyl diimide (II) into a solvent, adding a ruthenium catalyst for reaction at the temperature of 70-150 DEG C for 24-48 hours to obtain a mixture, extracting with ethyl acetate, separating and purifying the mixture by column chromatography after the mixture is washed and dried to obtain the 2-(3-halogen phenyl) pyridine derivative (III), wherein the reaction formula of the 2-(3-halogen phenyl) pyridine derivative is shown in the specification. The preparation method has the advantages of simplicity in operation, higher yield and the like; furthermore, reaction raw materials and reaction reagents are readily available, and multiple types of product substitutes are produced.

Provided are: a phosphorescent material which exhibits excellent horizontal orientation properties and so on when formed into a thin film; a process for producing the phosphorescent material with high efficiency; and a light-emitting element produced using the phosphorescent material. A phosphorescent material represented by general formula (1), a process for producing the phosphorescent material, and a light-emitting element produced using the phosphorescent material, each of which is characterized in that the phosphorescent material has a linear conjugated structure, a 2-phenylpyridine ligand, a center metal and a beta-diketone type ligand in the molecule thereof. In general formula (1), R1 and R2, which are terminal substituents, independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or the like; a to l and o to s independently represent a hydrogen atom, or the like; M, which is the center metal, represents platinum or the like; m and n, which are the numbers of repeats, independently represent an integer of 0 to 4.

The invention discloses a polypropylene modified functional film and a preparation method thereof. The preparation method of the polypropylene modified functional film comprises the following steps of: (1) immersing a cleaned polypropylene film in a toluene solution of benzophenone bromoisobutyrate, and airing; and putting the product into a transparent quartz vessel, introducing nitrogen and irradiating with an ultraviolet lamp; (2) extracting with dichloromethane and drying to obtain a polypropylene film with a brominated (-Br) surface; (3) putting the product into a colorimetric tube containing a reaction solvent, adding methacrylic acid or a methacrylate monomer, introducing nitrogen, and adding a visible light initiator tris(2-phenylpyridine) iridium; (4) sealing the colorimetric tube, and performing an irradiation reaction under the light of a fluorescent lamp at normal temperature; and (5) cleaning with deionized water, and washing N,N-dimethylformamide or N,N-dimethylacetamide with pure water; and taking out the product and drying to obtain the polypropylene modified functional film. The preparation method disclosed by the invention improves the hydrophilicity and dirt resistance of the film, has a simple process, and is green and environment-friendly and suitable for industrial production.

The invention belongs to the technical field of the organic photoelectric material and particularly relates to a preparation method of a water-soluble phosphorescnet iridium complex and applications of the complex in the fields of cell marking, imaging and organic photoelectronic devices. The complex material consists of ring metal ligands, a metal center and phenanthroline ligands. The structural general formula of the complex is shown as below. The material has simple synthesis steps and mild conditions; and triethylamine is used for the quaternization of the N^N ligand, thus the obtained complex has water-solubility and then has good application prospect in the cell imaging field. The C^N ligand is 2-(2',4'-difluorophenyl)pyridine, 2-phenylpyridine, 2-(2'-thienyl)quinoline, 2-phenylquinoline, 2-fluorenylisoquinoline, 1-phenylisoquinoline or 2-(2'-benzothienyl)pyridine.