82 results about "Diphenylphosphine" patented technology

The invention discloses a catalyst for preparing ultrahigh molecular weight polyoxyethylene as well as a preparation method and application thereof, and relates to the technical field of catalyst preparation. The preparation method of the catalyst comprises the following steps: S1, carrying out a reaction on 6-hexamethylenediamine and allyl acrylate to generate an intermediate 1, S2, carrying out a reaction on the intermediate 1 and diphenylphosphine to generate an intermediate 2, S3, carrying out a reaction on the intermediate 2 and allyl bromide to generate an intermediate 3, and S4, carrying out a reaction on the intermediate 3 and 9-boron bicyclo [3.3. 1] nonane. The prepared catalyst is high in catalytic activity, ultrahigh molecular weight polyoxyethylene can be prepared, and the molecular weight distribution of the prepared ultrahigh molecular weight polyoxyethylene is narrow.

The invention discloses a triazine desulfurizer and a preparation method thereof, and belongs to the technical field of gas purification. The triazine desulfurizer is mainly prepared from the following raw materials in percentage by weight: 20 to 50 weight percent of triazine derivative, 10 to 15 weight percent of sterically hindered amine, 3 to 7 weight percent of stabilizer, 1 to 3 weight percent of synergist, 0.5 to 1.5 weight percent of penetrant, 0.5 to 1.5 weight percent of inhibitor, 1 to 2 weight percent of additive and the balance of water, the preparation method of the triazine derivative comprises the following steps: adding 2-(diphenylphosphino) ethylamine into a toluene solvent, adding a paraformaldehyde aqueous solution in batches under a stirring condition, and reacting for 2-8 hours to obtain the triazine derivative. According to the triazine desulfurizer and the preparation method thereof provided by the invention, the triazine derivative and the sterically hindered amine are taken as a host, and the stabilizer, the synergist, the penetrant, the inhibitor and the assistant are compounded, so that the scaling trend of the triazine desulfurizer in an oil and gas well can be slowed down, the dissolution rate of hydrogen sulfide and the mass transfer rate in a solution are increased, and the desulfurization reaction is promoted; the desulfurization effect and the desulfurization rate are improved, and meanwhile, a very good scale inhibition effect is also achieved.

The invention relates to the technical field of organic synthesis, in particular to 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine as well as a synthesis method and application of the 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine. The synthesis method comprises the following steps: (1) synthesizing 2-chloro-3-fluoro-4-iodine-5-methylpyridine from 2-chloro-3-fluoro-5-methylpyridine and an iodine elementary substance to obtain 2-chloro-3-fluoro-4-iodine-5-methylpyridine; (2) synthesizing 2-(2-chloro-3-fluoro-5-methylpyridine-4-yl) benzaldehyde from the 2-chloro-3-fluoro-4-iodo-5-methylpyridine, the 1, 1-bis (diphenylphosphine) ferrocene palladium dichloride, the tripotassium phosphate and the (2-formyl phenyl) boric acid, and further synthesizing the 2-(2-chloro-3-fluoro-5-methylpyridine-4-yl) benzaldehyde from the 2-chloro-3-fluoro-4-iodo-5-methylpyridine and the 1, 1-bis (diphenylphosphine) ferrocene palladium dichloride. And (3) synthesizing the 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine by using the 2-(2-chloro-3-fluoro-5-methylpyridine-4-yl) benzaldehyde and sodium tert-butoxide. The 4-chloro-1-methyl-6H-heterochromene [3, 4-c] pyridine compound constructed by the invention can be used for detecting the content of pesticide residue glyphosate.

The invention discloses a method for synthesizing a benzodithiepinone derivative through metal-free catalysis, and belongs to the field of organic synthesis. According to the method, benzo disulfonylphenol ketone and alkyne are taken as raw materials, a dual-catalysis system composed of triethylene diamine and bis (diphenylphosphine) methane is adopted, a heating reaction is performed in a 1, 4-dioxane solvent, and the target seven-membered sulfur heterocycle (benzo [e] [1, 4] dithiepin-5-ketone compound) is obtained through separation and purification. According to the method, the problem of regioselective sulfuration of alkyne is effectively solved through a synergistic catalysis mechanism of organic amine and organic phosphine, and high-precision cyclization reaction of benzobissulfonylphenol ketone and alkyne is realized. The process is mild in reaction condition, free of inert gas protection, simple and convenient to operate and good in functional group tolerance, the atom economy can reach 100%, and an efficient and practical synthesis way is provided for construction of the benzo [e] [1, 4] dithiepin-5-ketone compound with a novel structure.

The application relates to the technical field of catalysts, and discloses a palladium / alumina catalyst and a preparation method and application thereof. A Schiff base phosphine cyclodextrin ligand is synthesized through two-step reactions of nucleophilic substitution and Schiff base condensation, the molecular structure of the ligand covalently bridges the hydrophobic cavity of beta-cyclodextrin and the strong coordination site of diphenylphosphine through a rigid Schiff base bond; subsequently, the phosphine group of the ligand is coordinated with a palladium salt under a specific pH, and a uniform and stable palladium-ligand colloid precursor is formed under the assistance of a directing agent and a stabilizing agent; finally, the colloid is mixed with an alumina carrier for impregnation, drying, and a palladium / alumina catalyst is obtained. Through molecular design and process innovation, the problems of low activity, poor selectivity and insufficient stability of traditional catalysts are solved. When the catalyst is used for preparing hydrogen peroxide by hydrogenating anthraquinone, the hydrogenation efficiency is significantly improved, the selectivity is extremely high, and the cycle stability is excellent, so the catalyst has important industrial application value.

The invention belongs to the field of organic synthesis, and particularly relates to a synthetic method of a diaryl methane compound. A toluene derivative as shown in a formula 1, an aryl iodide as shown in a formula 2 and a styrene derivative as shown in a formula 3 are subjected to a reaction in the presence of a catalytic amount of PdCl2 (dppf) and 4, 6-di (diphenylphosphine) phenazine and an equivalent amount of LiN (SiMe3) 2 and CsF to synthesize the diaryl methane compound as shown in a formula 4. The coupling reaction of the toluene derivative, the aryl iodide and the styrene derivative is realized by adopting a catalytic amount of PdCl2 (dppf), and the palladium catalyst shows obvious catalytic performance.

The invention relates to a method for preparing triphenylphosphine, which comprises the following steps: a diphenylphosphine chloride raw material is subjected to heat treatment at the temperature of 280-420 DEG C to prepare triphenylphosphine, and at least part of phenylphosphine dichloride is removed in the heat treatment process.

The invention discloses a preparation method and application of 1, 4-bis (diphenylphosphine) butane platinum dichloride (II), and the preparation method comprises the following steps: (1) mixing absolute methanol and dichloromethane, carrying out deoxidation treatment, and adding 1, 4-bis (diphenylphosphine) butane into the mixture; (2) dissolving potassium chloroplatinite in distilled water, filtering insoluble impurities, dropwise adding the potassium chloroplatinite into the reaction system in the step (1) under the protection of inert gas while keeping a stirring state, and after dropwise adding, heating, refluxing and stirring for reaction; (3) carrying out filter pressing under the protection of inert gas, passing through a silica gel column, and collecting filtrate; (4) concentrating the filtrate, and then adding an organic solvent for pulping; and (5) carrying out filter pressing under the protection of inert gas, washing a filter cake, and carrying out vacuum drying. According to the preparation method, the product yield is high, the purity is high, and the obtained 1, 4-bis (diphenylphosphine) butane platinum dichloride (II) is used for hydrogenation reaction of carbonyl compounds and has good catalytic performance.

The application provides a method for constructing a C-P bond through a nickel-catalyzed Hirao reaction, comprising the following steps: coupling a substituted aromatic compound 1 and a diphenyl phosphine oxide 2 in an organic solvent in the presence of a nickel catalyst, an additive and a base to generate an aromatic phosphine oxide compound 3, and the reaction formula is as follows: wherein X is any one of F, Cl, Br, I, OTf, B(OH)2 and OCF3; and Ar is an aromatic group. The method has the effects of universality of substrates, simple operation, mild conditions, low cost of noble metal catalysts and phosphine ligands and high yield.

The invention provides a preparation method of a novel chiral thiourea / phosphine bifunctional organic catalyst with a cis-cyclic 1, 2-phosphinamine skeleton and application of the novel chiral thiourea / phosphine bifunctional organic catalyst in an asymmetric catalytic reaction. The chiral organic catalyst is prepared by taking cis chiral 2-(diphenylphosphine)-1, 2, 3, 4-tetrahydro-1-naphthylamine and an isothiocyanate compound as raw materials through a one-step reaction under a mild condition. The chiral thiourea / phosphine bifunctional organic catalyst is simple to prepare and stable in property, and shows excellent catalytic activity and stereoselectivity in an asymmetric hydrosilylation reaction of o-amido benzophenone.

The invention relates to the technical field of chromatographic packing, in particular to phosphine-containing ligand modified silica gel chromatographic packing and a preparation method thereof.The preparation method comprises the steps that firstly, porous silsesquioxane microspheres containing diphenylphosphine ligands are designed and synthesized to serve as a functional unit, and modified bridged silane containing a phenyl ether structure serves as an alkali-resisting enhancing unit; then copolycondensation is carried out on the units and tetraethoxysilane through a sol-gel method, an organic-inorganic hybrid silica gel skeleton is constructed, and finally the pore channel structure of the filler is optimized through a two-step pore expanding technology. According to the method, a phosphine ligand is firmly embedded into a silica gel skeleton in a covalent bond form, and modified bridged silane containing a phenyl ether structure is used as a part of the skeleton to provide hydrophobic protection and space stabilization effects, so that long-term stability of the filler in a strong alkaline environment and high-capacity and high-selectivity adsorption of metal ions are synergistically realized.

The application discloses a high-temperature-resistant polyvinyl chloride adhesive tape and a preparation method thereof, and belongs to the technical field of polymer materials and adhesive products. The high-temperature-resistant polyvinyl chloride adhesive tape comprises the following raw materials in parts by weight: synergistically modified polyvinyl chloride, diphenyl phosphine oxide, chlorinated polyethylene, diisononyl phthalate, antimony trioxide, calcium stearate, zinc stearate, an antioxidant and a leveling agent; the synergistically modified polyvinyl chloride is obtained by introducing catechol structures on the surface of polyvinyl chloride through dopamine self-polymerization deposition, forming a dynamic borate ester structure with 3-aminobenzoic acid, and constructing a Si-O-Si network structure through hydrolytic condensation reaction of octa(3-aminopropyl)silsesquioxane and N-(beta-aminoethyl)-gamma-aminopropyl triethoxysilane. The dopamine-borate ester-silicone synergistic network structure is constructed, and the diphenyl phosphine oxide is introduced for function regulation, so that the heat resistance, mechanical properties and dimensional stability of the polyvinyl chloride adhesive tape are significantly improved.

The invention relates to the technical field of phosphorus chemical synthesis, in particular to an industrial production method and application of 1, 2-bis (diphenylphosphinoxy) ethane, and the industrial production method of 1, 2-bis (diphenylphosphinoxy) ethane comprises the following steps: step 1, preparing an alkali solution; step 2, substitution reaction; step 3, product separation; step 4, product drying; and 5, recovering water, toluene and potassium chloride. The method has the advantages of few operation units, no three wastes, easily controllable conditions, realization of continuous production, and meeting of industrial production requirements.

The invention discloses an alpha-fluoro alpha, beta-unsaturated amide derivative as well as a synthesis method and application thereof. The preparation method comprises the following steps: by taking amyl-1, 1, 2-trifluoro-1, 4-diene which is simple and convenient to prepare and a cheap and abundant amine compound as raw materials, an allyl palladium chloride dimer as a transition metal catalyst, 1, 4-bis (diphenylphosphine) butane as a ligand and 2, 5-di-tert-butylbenzoquinone as an oxidant, reacting in an organic solvent at a proper temperature under a nitrogen condition, thereby obtaining the 1, 1, 2-trifluoro-1, 4-diene compound. The alpha-fluoro alpha, beta-unsaturated amide derivative is obtained with good yield, and the structural formula of the derivative is shown in the specification. The synthesis method disclosed by the invention has the characteristics of simplicity and convenience in operation, mild conditions, greenness, economy, wide substrate compatibility, high chemical selectivity and high regioselectivity, and solves the technical problem that the synthesis conditions of the alpha-fluoro-alpha, beta-unsaturated amide derivative are complicated and harsh. Meanwhile, the alpha-fluoro drug molecules can be efficiently and highly selectively obtained, and the method has a wide application prospect.

This invention relates to a lysosome-targeting fluorescent dye based on the BODIPY structure and its synthesis method, belonging to the field of organic fluorescent dyes. The invention designs and synthesizes the lysosome-targeting fluorescent dye BDP. The dye molecule uses BODIPY as the parent structure, and a novel lysosome-targeting fluorescent dye molecule is synthesized by introducing diphenylphosphine salt and tert-butyloxycarbonyl groups. The synthetic route of this dye is simple, it possesses excellent photostability, and exhibits good resistance to interference from ions, amino acids, and viscosity. Furthermore, this dye demonstrates superior fluorescence performance in a variety of common solvents, with fluorescence quantum yields exceeding 0.70. Experimental results show that this fluorescent dye can precisely target lysosomes in living cells, demonstrating promising applications in the field of bioimaging.

The invention relates to the technical field of organic alcohol synthesis, and discloses a method for synthesizing isononyl alcohol. The method comprises the following steps: (1) mixing octylene, a rhodium catalyst and a phosphine ligand, then introducing synthesis gas into the obtained mixture, and carrying out hydroformylation reaction to obtain isononanal; (2) in the presence of a hydrogenation catalyst, mixing the isononanal with hydrogen for hydrogenation reaction; wherein the phosphine ligand is selected from two or more of triphenyl phosphite, tris (2, 4-di-tert-butylphenyl) phenyl phosphite, triphenylphosphine, 6, 6 '-{[5, 5'-dimethoxy-3, 3 '-bis (2-methyl-2-propyl)-2, 2'-biphenyl diyl] bis (oxy)} bis [dibenzo (d, f) (1, 3, 2) dioxaphosphoheptane] and 4, 5-bis (diphenylphosphine)-9, 9-dimethyl xanthene. According to the method, the conversion rate of mixed octylene in the hydroformylation process and the selectivity and yield of isononyl aldehyde can be remarkably improved, so that the yield of isononyl alcohol is improved, reaction conditions are mild, and the method has remarkable economic value and wide industrial application prospects.

The application discloses a method for constructing a cycloalkene-quinolinone axial chiral compound through a Heck reaction. The method uses a quinolinone compound containing central chirality as a substrate, uses palladium acetate (Pd(OAc)2) and 4,5-bisdiphenylphosphine-9,9-dimethylxanthene (Xantphos) as a catalyst, uses silver phosphate (Ag3PO4) as an alkali, and uses toluene as a solvent to prepare a cycloalkene-quinolinone axial chiral compound. The compound can be reacted with diisobutylaluminum hydride to realize conversion of a functional group. The method has mild reaction conditions, raw materials are easy to obtain, the product has excellent enantioselectivity, and has excellent yield, and thus provides a new method for synthesizing a cycloalkene-quinolinone axial chiral compound.

The present application relates to the technical field of chromatographic packing, in particular to a kind of phosphine ligand modified silica gel chromatographic packing and preparation method thereof, the present application first designs and synthesizes the porous silsesquioxane microspheres containing diphenyl phosphine ligand as functional unit, and the modified bridged silane containing phenyl ether structure as alkali-resistant reinforcing unit, then by sol-gel method, the above unit is copolymerized with tetraethyl orthosilicate, constructs organic-inorganic hybrid silica gel skeleton, finally, the pore structure of packing is optimized by two-step hole expansion process;The method makes phosphine ligand firmly embedded in the interior of silica gel skeleton in the form of covalent bond, and the modified bridged silane containing phenyl ether structure provides hydrophobic protection and space stabilization effect as part of the skeleton, so as to realize the long-term stability of packing in strong alkaline environment and high capacity, high selectivity adsorption of metal ions.

The invention discloses a metal nanocluster and application of the metal nanocluster in catalysis of sec-enaminone photooxidation reaction. The molecular formula of the metal nanocluster is [Au13Cd2 (BINAP) 3 (PET) 6Y2] < + >, wherein Y is F, Cl, Br or I, and BINAP is a diphosphine ligand 1, 1 '-binaphthyl-2, 2'-bis (diphenylphosphine). According to the invention, a novel catalyst with NIR-II strong absorption (to 1500 nm) and high-efficiency energy transfer characteristics is constructed by accurately modifying a light functional ligand BINAP on the surface of the nanocluster, and high-efficiency light-driven catalysis in a deep reaction system, a biocompatible environment and an industrial scale is realized.

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

The invention belongs to the technical field of luminescent materials, and particularly relates to a Mn (II)-based complex luminescent material as well as a preparation method and application thereof. The chemical formula of the manganese (II)-based complex luminescent material is [Mn (DPPPO) Cl2] n, and DPPPO is 1, 3-bis (diphenylphosphinyloxy) propane. Under the stimulation of methanol, methanol molecules are combined with the [Mn (DPPPO) Cl2] n through hydrogen bonds to induce reconstruction of a crystal structure, so that the [Mn (DPPPO) Cl2] n is gradually converted into [Mn2 (DPPPO) 4Cl2] Cl2; therefore, the specific response to the methanol steam is realized; the technical problem that an existing manganese-based metal halide is poor in selective recognition and detection capacity on specific target vapor molecules, and consequently the recognition specificity is poor is solved. And recovery can be realized through heating, so that reversible use of the material is realized.

The invention discloses a chlorine-containing monophosphine compound as well as a preparation method and application thereof, and the chlorine-containing monophosphine compound is (2-formyl phenyl) diphenylphosphine-2, 6-dichloro-1, 4-phenylenediamine; the preparation method comprises the following steps: sequentially adding 2, 6-dichloro-1, 4-phenylenediamine and (2-formylphenyl) diphenylphosphine into an organic solvent I in an inert gas atmosphere, reacting for a certain time at a certain temperature, cooling and filtering to obtain a crude product; and dissolving the obtained crude product in a dichloromethane / normal hexane mixed solution, cooling, volatilizing and crystallizing, filtering and drying to obtain the chlorine-containing monophosphine compound. The chlorine-containing monophosphine compound is applied as a fluorescent probe to detect heavy metal ions, and the heavy metal ions in a solution are detected by utilizing the fluorescence intensity enhancement effect of the chlorine-containing monophosphine compound on the heavy metal ions. The preparation method disclosed by the invention is simple and convenient to operate, relatively mild in reaction condition, relatively low in raw material price and low in process cost, and has an application prospect of industrial production.

This invention discloses a metal-free catalytic synthesis method for benzo[e][1,4]dithioheptan-5-one derivatives, belonging to the field of organic synthesis. The method uses benzo[e][1,4]dithioheptan-5-one compounds as raw materials, employing a dual-catalytic system composed of triethylenediamine and bis(diphenylphosphine)methane, and reacts under heating in a 1,4-dioxane solvent. After separation and purification, the target seven-membered thioheptan-5-one compounds are obtained. This method effectively solves the regioselective sulfidation problem of alkynes through the synergistic catalytic mechanism of organic amines and organic phosphines, achieving a highly precise cyclization reaction between benzo[e][1,4]dithioheptan-5-one compounds. The process features mild reaction conditions, requires no inert gas protection, is simple to operate, exhibits good functional group tolerance, and achieves 100% atom economy, providing an efficient and practical synthetic route for the construction of novel benzo[e][1,4]dithioheptan-5-one compounds.

The application provides a kind of chiral P, N, N ligand and its preparation method and application in asymmetric hydrogenation reaction. 2-diphenylphosphinyl phenethylamine is mixed with 6-phenylpyridine-2-formaldehyde, nitrogen is filled, methanol is added, the formed mixture is refluxed, after cooling, NaBH4 is added. Then, the mixture is refluxed again. Cooling, water is added, dichloromethane is extracted, anhydrous sodium sulfate is dried, after removing solvent, the desired chiral P, N, N ligand is obtained by column chromatography. The catalyst formed by the chiral ligand described in the application and Mn, Ir-, Ru- and other metal precursors has excellent catalytic activity and stereoselectivity in the catalytic asymmetric hydrogenation reaction of C=C, C=N and C=O double bond. The enantioselectivity is as high as 99% ee, and the TON is as high as 100000.

The invention discloses a plant-based antibacterial fiber and a preparation method thereof, and relates to the field of fibers. When the plant-based antibacterial fiber is prepared, microcrystalline cellulose sequentially reacts with 2-bromo-1-[3, 5-di (tert-butyl)-4-hydroxyphenyl] ethanone and 3, 5-di (trifluoromethyl) aniline, and modified microcrystalline cellulose is prepared; the preparation method comprises the following steps: sequentially reacting polypropylene with allyldiphenylphosphine and 3-chloromethylthiophene to prepare modified polypropylene; mixing the modified polypropylene and the modified microcrystalline cellulose, performing melt spinning, and finally performing surface treatment by using thiophene to obtain the plant-based antibacterial fiber. The plant-based antibacterial fiber prepared by the invention has flame-retardant, durable and waterproof capabilities.

The application discloses a kind of based on chelating phosphine ligand Binuclear cuprous cluster luminescent material and its preparation method, and the sensing application of the material to pyridine and cyclohexylamine VOC;The luminescent material structural formula of the application is (Xantphos) Cu2I2 (4-PBO) 2, wherein Xantphos is electric neutral double phosphine ligand 4,5-bis (diphenylphosphine) -9,9-dimethyl xanthene, and 4-PBO is nitrogen-containing ligand 4- (2-benzoxazole) pyridine;It is prepared by coordination reaction of CuI and ligand by mechanical ball milling;The luminescent intensity of material itself is strong, and can be used as luminescent material;And after the material is placed in pyridine or cyclohexylamine atmosphere, different fluorescence sensing response characteristics of fluorescence enhancement and discoloration and fluorescence quenching are presented soon respectively;The material is easy to prepare, and solubility and stability are very good, and it is also easy to prepare into paper-based load or polymer-doped fluorescent sensing film, and the film also shows the fluorescence sensing performance of quick and selective response and sensitive identification.

The invention provides a cuprous iodide cluster single crystal material as well as a preparation method and application thereof, and belongs to the technical field of luminescent materials. The cuprous iodide cluster single crystal material disclosed by the invention has a structural general formula shown in the specification. The preparation method comprises the following steps: mixing CuI, a diphenylphosphine quinoline ligand and an organic solvent to form a clear and transparent solution, and crystallizing through a room temperature volatilization method to obtain the cuprous iodide cluster single crystal material. Carrier transport is balanced and skeleton rigidity is enhanced by introducing carbazole, 3, 6-tert-butyl carbazole, phenoxazine and 9, 9-dimethyl acridine groups, exciton quenching is inhibited while an orange-red photoluminescence blank is filled, and a key material support is provided for constructing a high-performance solution processing type OLED (Organic Light Emitting Diode).

The application discloses a preparation method of a photoinitiator TPO and belongs to the field of photoinitiators. The preparation method of the photoinitiator TPO comprises the following steps: carrying out chlorination reaction on diphenyl phosphoric acid and a chlorinating agent to generate diphenyl phosphinic chloride; carrying out condensation reaction on the diphenyl phosphinic chloride and 2,4,6-trimethylbenzyl magnesium chloride to obtain (2,4,6-trimethylbenzyl) diphenyl phosphine oxide; and carrying out oxidation addition reaction on the (2,4,6-trimethylbenzyl) diphenyl phosphine oxide and an oxidizing agent to obtain the photoinitiator TPO. The diphenyl phosphoric acid originally as solid waste is fully utilized, waste is turned into treasure, energy is fully utilized, environmental protection pressure is reduced, the synthesis mode of the photoinitiator TPO is expanded, and the production cost of the photoinitiator TPO is reduced, and the economic and environmental friendliness of the photoinitiator TPO makes the preparation method convenient for large-scale popularization and application.

The invention discloses a halogen-regulated efficient copper-based complex, a preparation method thereof and application of the halogen-regulated efficient copper-based complex in a photoelectric device, and belongs to the technical field of luminescent materials. The copper halide complex is obtained through a volatilization method, has excellent luminescence performance and can be widely applied to the fields of photoelectric devices such as LED illumination, display screens and photoelectric detectors. The material takes cuprous halide as a luminescence center, 4, 5-bis (diphenylphosphine)-9, 9-dimethyl xanthene and 1-benzylimidazole are subjected to a coordination reaction to form a stable complex, and the stable complex is crystallized to prepare the material. Due to different metal salts, the light-emitting wavelength and the quantum efficiency can be effectively adjusted. The highest quantum efficiency can reach 88.95%, and the quantum efficiency is high. The material has the advantages of simple preparation process, low raw material cost and the like, and has important application value in the fields of photoelectric display, temperature sensing, anti-counterfeiting identification and the like.

The invention relates to a method for preparing triphenylphosphine, which comprises the following steps: carrying out heat treatment on a diphenylphosphine chloride raw material at 280-480 DEG C to prepare the triphenylphosphine, and the content of phenyldichlorophosphine in the diphenylphosphine chloride raw material is not more than 35 weight percent based on the total weight of the diphenylphosphine chloride raw material.