63 results about "2-Ethoxyethanol" patented technology

A lytic reagent composition and the method of use for differential analysis of leukocytes using flow cytometry are disclosed. The lytic reagent composition includes a short chain alkyl oxyethanol, such as 2-methoxyethanol, 2-ethoxyethanol, 2-propoxyethanol, or 2-isopropoxyethanol, in a sufficient amount to preserve leukocytes; a non-lysing nonionic surfactant as a debris solublizer; and an inorganic buffer to maintain pH of the lytic reagent composition in a range from 9.1 to 10.7. The lytic reagent composition is used to lyse red blood cells and preserve leukocytes, as well as used as the sheath reagent for the focus flow measurement. The lytic reagent composition, when used on a flow cytometric analyzer with multiple angle light scatter and light absorbance measurements, enables differentiation of leukocytes into five subpopulations.

The invention discloses a supported zirconium sulfate catalyst, a preparation method thereof and application thereof in synthesizing ethylene glycol monoethylether acetate or tributyl citrate. The catalyst comprises the following components in proportion by weight: 10 to 40 percent of zirconium sulfate tetrahydrate and 60 to 90 percent of carrier, wherein the carrier is mesoporous molecular sieve SBA-15 or active carbon. The preparation method comprises the following steps: (1) preparation of an active carbon carrier, wherein the active carbon is soaked by sodium hydroxide and hydrochloric acid respectively, the solution is filtered, the active carbon is placed into a nitric acid solution for reflux, the solution is filtered, and the active carbon is washed to neutrality and dried; (2) preparation of a mesoporous molecular sieve carrier, wherein a template agent is dissolved in dilute HCl, ethyl orthosilicate is added dropwise into the mixture, the mixture is stirred at a constant temperature, the mixture is subjected to ageing and filtering to obtain a solid, and the solid is baked to remove the template agent to obtain the mesoporous molecular sieve carrier; and (3) preparation of the catalyst, wherein the zirconium sulfate tetrahydrate is dissolved in water, the carrier is added into a water solution for stirring and impregnating, the mixture is heated to remove the water, and the mixture is dried to obtain the catalyst. The method overcomes the defects of difficult separation, incapacity of recycling the catalyst, long process flow, corrosion of equipment and environmental pollution of the conventional catalyst.

The invention relates to a neutral paint stripper which can be widely used in the paint strippers of various primer films. The neutral paint stripper mainly comprises dichloromethane, methanol, ethanolamine, 2-ethoxyethanol, carboxymethyl cellulose, sodium alkyl benzene sulfonate, paraffin wax and water.

Catalytic reactions are taught for air or oxygen oxidative chemical conversion of primary alcohols to aldehydes, glycol ethers and related products and secondary alcohols to ketones and related products at ambient pressure. The catalytic process converts ethanol to acetaldehyde and 2-ethoxyethanol, n-propanol to propionaldehyde and its glycol ethers, 2-propanol to acetone, and other reactants to similar products. The catalysts are based on molecular strings of di-, tri- and / or poly- groups of transition metal complexes possessing a degree of symmetry. Laboratory results have demonstrated [manganese (II)]2, [cobalt (II)]2, [vanadium (II)]2 and similar families of catalysts to be effective for oxidative catalytic conversion of primary alcohols to products comprising related aldehydes and glycol ethers, and secondary alcohols to products comprising ketones and related products.

The invention relates to a detection method for 2-methoxyethanol, 2-ethoxyethanol, 2-methoxyethanol acetate and 2-ethoxyethanol acetate, comprising the following steps: pretreating a sample with Soxhlet<,>s extraction method or ultrasound extraction method; detecting 2-methoxyethanol, 2-ethoxyethanol, 2-methoxyethanol acetate and 2-ethoxyethanol acetate with a gas chromatograph providing with a hydrogen flame ionization detector, with the injector temperature of 180-250 DEG C, high purity nitrogen as carrier gas, the carrier gas flow rate of 0.8-1.5ml / min, and polar column as chromatographic column; bringing the pretreated sample in the chromatographic column through the gas chromatograph for programming temperature from 40-80 DEG C to 220-240 DEG C; and separating the four objects from the chromatographic column. The method has the advantages of cheap detector, simple and safe operation, accurate and rapid analytical method.

The invention provides a novel print recognition based metronidazole electrochemical sensor, a preparation method and an application. The preparation method of the sensor comprises following steps: graphite powder and paraffin oil are uniformly mixed to form carbon paste, a carbon paste electrode is prepared and put in a sulfuric acid solution for potential scan round, and a conductive film carbon paste electrode is prepared; sol proportionally prepared from APTMS (aminopropyl trimethoxysilane), TEOS (tetraethoxysilane), 2-ethoxyethanol, a metronidazole containing 2-ethoxyethanol solution, an NaOH solution and deionized water is dispensed on the surface of the conductive film carbon paste electrode dropwise, a heterogeneous double-layered-based molecularly imprinted polymer film modified carbon paste electrode is obtained and connected with an electrochemical device, and the sensor is assembled. The sensor has enhanced print recognition capacity and wide applicability, has the characteristics of high sensitivity, good selectivity, wide linear range, high precision and accuracy, low detection cost, environment-friendliness, portability, suitability for field monitoring and the like, further, the preparation process is simple, the cost is low, and the service life is long.

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Grignard reaction on an iridium metal complex to prepare a compound C, carrying out dehydration cyclization on the compound C to obtain a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and acetylacetone to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.

The invention discloses a red light-emitting organic electrophosphorescent material iridium complex having a structure shown in the formula (P), and in the formula, R represents methyl. The preparation method comprises the following steps that a ring metal ligand is prepared by a Suzuki coupling reaction, the ring metal ligand and an iridium trichloride trihydrate undergo a polymerization reaction in a 2-ethoxyethanol-water mixed solvent to produce a chlorine-bridged biopolymer, and the chlorine-bridged biopolymer and 2,2,6,6-tetramethyl-3,5-heptanedione undergo a coordination reaction to produce the red light-emitting organic electrophosphorescent material iridium complex. The invention also provides the organic electroluminescent device containing the iridium complex. Through use of 2,2,6,6-tetramethyl-3,5-heptanedione as an assistant ligand in the ring metal ligand, metal iridium complex steric-hinerance effect is improved so that direct effects between metal atoms are reduced, triplet exciton self-quenching phenomenon is reduced and luminescence efficiency of the organic electroluminescent device is improved.

The invention relates to a preparation method of a nonionic polyurethane surfactant, and belongs to the technical field of surfactants. The preparation method conducts polymerization on methyl diisocyanate, 2-ethoxyethanol, polyethylene glycol and the like according to a polymer molecule design principle through formulation design to obtain the novel water-soluble nonionic block type polyurethanesurfactant. When the method is used for preparing the nonionic polyurethane surfactant, multi-step purification is not needed, and the product has excellent properties.

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and an auxiliary ligand 2,2,6,6-tetramethyl-3,5-heptanedione to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and an auxiliary ligand acetylacetone to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.

The present invention discloses a red light organic electrophosphorescence material metal iridium coordination compound having a structural formula represented by a formula (P), wherein R is methyl. The preparation method comprises that: a Suzuki coupling reaction is performed to obtain a ring metal ligand, the ring metal ligand and iridium trichloride trihydrate are subjected to a polymerization reaction in a 2-ethoxyethanol and water mixed solvent to obtain a chloro-bridge dimer, and the chloro-bridge dimer and 2,2,6,6-tetramethyl-3,5-heptanedione are subjected to a coordination reaction to obtain the red light organic electrophosphorescence material metal iridium coordination compound. The present invention further provides an organic electroluminescent device containing the metal iridium coordination compound. According to the present invention, 2,2,6,6-tetramethyl-3,5-heptanedione is added to the ring metal ligand as the auxiliary ligand so as to increase the steric hindrance effect of the metal iridium coordination compound, such that the direction effect between the metal atoms is reduced, the self-quenching phenomenon of the triplet state excitons is reduced, and the luminescence efficiency of the organic electroluminescent device is increased.

The invention relates to a paint remover capable of being used circularly. The paint remover is prepared from D40 solvent oil, 2-ethoxyethanol, dipropylene glycol mono butyl ether, butyl acetate, alcohol solvent, ketone solvent and penetrant. The paint remover has the extremely high capacity of dissolving a paint film, the paint removing speed is high, the paint removing efficiency is high, the performance is stable, the comprehensive cost is low, recycle and reuse can be achieved, one one hand, various paint such as alcohol acid, nitryl, epoxy, polyester and polyurethane can be removed, and on the other hand, the paint remover is suitable for performing paint removing on powder coated workpiece, two-color oil coating on vacuum plating (PVD) or water plating workpiece and the like, the paint removing effect is good, the flash point is high, the safety factor is high, volatility is high, toxicity to a human body does not exist, waste paint remover generated by an enterprise in the use process can be recycled and reused through a vacuum distillation recovery machine, no sewage can be generated in the use process, sewage discharge is avoided, waterless cleaning can be achieved for theenterprise, the environmental protection pressure is reduced, and the cost is low.

The invention discloses a cover oil resin combination used for hydrographics transfer printing. The cover oil resin combination comprises 100 parts of thermoplastic (methyl) acrylic copolymer, 10-40 parts of a plasticizer and 110-260 parts of a solvent; the glass-transition temperature of the thermoplastic (methyl) acrylic copolymer ranges from 30 DEG C to 100 DEG C, a substituent group of the thermoplastic (methyl) acrylic copolymer is one of H, C1-C12 aliphatic groups and alicyclic groups, the plasticizer is phthalic acid or phthalic acid ester, the boiling point of the solvent ranges from 130 DEG C to 250 DEG C, and a naphtha solvent or a 2-ethoxyethanol solvent can be selected. When the resin combination is used for protecting pattern shapes during transfer printing in a sliding mode, in ceramic industries such as enamel and glass, under the strict firing conditions such as ultra quick firing or overprinting or thick-printing, gas holes and residues by firing cannot occur, and the fired surface is bright and clean and even.

The invention provides a blue organic electroluminescent phosphorescent material-iridium metal complex shown in a structural formula (I) in the specification. In the structural formula (I), R is a hydrogen atom, alkyl or alkoxy. A preparation method of the iridium metal complex comprises the following steps: preparing a cyclo-metal ligand through Suzuki coupling reaction; then subjecting the cyclo-metal ligand and IrCl3.3H2O to polymerization reaction in a mixed solution of 2-ethoxyethanol and water to obtain a chlorendic dimmer; subjecting the chlorendic dimmer and an ancillary ligand source to polymerization reaction, thus obtaining the blue organic electroluminescent phosphorescent material-iridium metal complex shown in the structural formula. The material can obtain good energy transmission efficiency and proper blue light emission wavelength, can be used for preparing blue or white phosphorescent electroluminescence devices and can achieve the aims of reducing the power consumption of the devices, improving the properties of the devices and prolonging the service lives.

The invention discloses a cinder-ash insulation foam board and a preparing method thereof. The cinder-ash insulation foam board comprises, by weight, 20 parts to 40 parts of polyphenyl granules, 7 parts to 13 parts of benzene, 25 parts to 40 parts of absolute ethyl alcohol, 7 parts to 12 parts of 2-ethoxyethanol, 1 part to 2 parts of epoxy resin, 2 parts to 3 parts of curing agents, 1 part to 2 parts of surfactants, 1 part to 3 parts of thixotropic agents and 10 parts to 20 parts of cinder ash. The preparing method of the cinder-ash insulation foam board includes the steps of pre-foaming the raw materials; preprocessing the foamed raw materials; placing expandable polyphenyl into a mold for mold pressing foaming forming, and obtaining the cinder-ash insulation foam board. By means of the cinder-ash insulation foam board and the preparing method, the cinder ash is efficiently used, the pollution of the cinder ash to the environment is reduced, the flame resistance and the insulation performance of the insulation foam board prepared with the preparing method are improved, and therefore the foam board is safer, more reliable and more practical.

The invention discloses a cleaning agent for printing ink. The cleaning agent comprises the following ingredients: 3-7% of oleic acid, 6-10% of isopropanol, 15-25% of solvent oil, 5-15% of 2-ethoxyethanol, 2-5% of fatty alcohol-polyoxyethylene ether sulfate, 1-2.5% of fatty alcohol-polyoxyethylene ether, 0.5-2% of benzotriazole, 0.5-2% of sodium benzoate, 0.5-1.5% of sodium silicate, 0.5-1.5% of ethylene diamine tetraacetic acid tetra-sodium salt, 0.5-1.5% of urea, 0.5-1.5% of sodium gluconate and the balance of water. The cleaning efficiency can reach 99.5% after the four solvents of oleic acid, isopropanol, solvent oil and 2-ethoxyethanol are compounded; fatty alcohol-polyoxyethylene ether sulfate and fatty alcohol-polyoxyethylene ether can generate synergistic interaction, so that a better emulsification effect is achieved, and microemulsion with better stability can be prepared. According to the cleaning agent disclosed by the invention, the excellent cleaning efficiency is ensured, at the same time, the volatility of organic solvents is reduced, the working environment of a printing workshop is improved, and the safety of work is greatly improved.

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and the cyclomedtalating ligand to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.

The invention discloses a red light-emitting organic electrophosphorescent material iridium complex having a structure shown in the formula (1), and in the formula, R represents hydrogen or methyl. A preparation method of the red light-emitting organic electrophosphorescent material iridium complex comprises the following steps that a ring metal main ligand is prepared by a Suzuki coupling reaction, the ring metal main ligand and IrCl3.3H2O undergo a polymerization reaction in a 2-ethoxyethanol-water mixed solvent to produce a chlorine-bridged bipolymer, and the chlorine-bridged bipolymer and diacetone undergo a ligand exchange reaction to produce the red light-emitting organic electrophosphorescent material iridium complex. The red light-emitting organic electrophosphorescent material iridium complex is prepared by synthesis of 1-phenoxy-4-phenylphthalazine or its derivative as the ring metal main ligand and diacetone as an assistant ligand, and can adjust luminescence wavelength and produce approximately-standard red light. An organic electroluminescent device prepared from the red light-emitting organic electrophosphorescent material iridium complex can emit high-purity red light and has high luminescence efficiency. The preparation method has simple processes and is suitable for industrial production.

The invention provides an iridium complex and a preparation method thereof. The iridium complex uses aromatic ring and nitrogen heterocycle as a first main ligand and azo-heterocyclic phosphate as a second main ligand; in the aromatic ring and nitrogen heterocycle of the first main ligand, Ar is substituted phenyl ring, substituent is F, CF3 or CN, and N is pyridyl; in the azo-heterocyclic phosphate of the second main ligand, R is aryl or pyridyl, substituent is F or CF3, and N is pyridyl. The iridium complex is prepared by mixing iridium dimer bridged complex, azo-heterocyclic phosphate and an alkali carbonate as materials, adding 2-ethoxyethanol solution to a mixture and thermally reacting. The iridium complex of the invention is simple to prepare, high in yield and applicable to the preparation of organic electroluminescent devices.

The invention relates to the technical field of paint, in particular to anti-corrosion finishing paint for doors and a preparation method thereof. The anti-corrosion finishing paint for doors is characterized by comprising, by weight, 45-60 parts of PTFE latex, 7-10 parts of amino resin, 35-50 parts of HDI, 6-10 parts of methyl alcohol, 5 parts of 2-ethoxyethanol, 10-15 parts of Ti-Ni composite pigment, 2-5 parts of silica colloidal, 2-3 parts of 50% ammonia water and 8-9 parts of water. The anti-corrosion finishing paint for doors and the preparation method thereof provided by the invention have the beneficial effects that the technology is simple, the toxicity of products is small, and the moistureproof effect is good.

The invention discloses a primer paste for preventing wooden articles from shrinking, swelling and cracking, which comprises the following components by weight: 150g of beeswax, 70g of whale wax, 80g of microcrystal wax, 100g of octodecyl alcohol, 60g of stearic acid, 100g of oubulum oil, 100g of 2-ethoxyethanol, 50g of normal butanol, 90g of trolamine, 150g of walnut oil, 100g of lanoline, 30g of Tween 80, 100g of acrylic acid-ethylparaben, 80g of ethyl methyl ketone, 50g of butyl acrylate and 80g of butadiene. The primer paste has simple process and is easy for mass production. The primer paste ensures that a particular isolated layer is formed in a wooden surface, does not volatilize permanently in the wood and keeps moist so as to maintain the balance of water content in the wood without being influenced by exterior environment change, thereby furthest suppressing shrinkage, swelling and cracking caused by the change of humidity and meeting the requirement on protecting high-quality wooden articles of people.

The invention discloses a soft hydrophilic corneal contact lens manufacturing formula, and relates to the field of production of contact lenses. The soft hydrophilic corneal contact lens manufacturing formula mainly comprises the following components: 500 grams of 2-ethoxyethanol, 25 grams of methyl methacrylate, 20 grams of methacrylic acid, 20 grams of styrene, 800 grams of butyl acetate, 10 grams of 2-mercaptoethanol, 100 grams of propylene glycol, 1,000 grams of hydroxyethyl methacrylate and 5 grams of hexamethylene diisocyanate. A manufactured soft hydrophilic corneal contact lens is high in softness and elasticity and difficult to fade, is stable when being formed and colored, can be more comfortable to wear, and is free of strong irritation effects.

The invention relates to a high-strength antistatic polyethylene terephthalate composite material and a preparation method thereof, and belongs to the technical field of composite materials. The invention solves the problem of improving the antistatic property of a polyethylene terephthalate composite material on the basis of ensuring the strength of the polyethylene terephthalate composite material. The composite material disclosed by the invention consists of the following components: 70-90 parts by weight of polyethylene terephthalate, 5-7 parts by weight of a nucleating agent, 10-20 partsby weight of polyaniline fibers, 1-2 parts by weight of carbon fibers, 2-2.5 parts by weight of sodium dodecyl benzene sulfonate, 1.5-2 parts by weight of 2-ethoxyethanol, 1-2 parts by weight of an antioxidant, 2-2.5 parts by weight of a coupling agent, 2-4 parts by weight of a solubilizer, 0.5-1 part by weight of an anti-fiber exposure agent and 0.5-1 part by weight of a heat stabilizer. The composite material has both high strength and excellent antistatic property.

The invention provides a blue organic electroluminescent phosphorescent material-iridium metal complex shown in a structural formula (I) in the specification. In the structural formula (I), R is a hydrogen atom, alkyl or alkoxy. A preparation method of the iridium metal complex comprises the following steps: preparing a cyclo-metal ligand through Suzuki coupling reaction; then subjecting the cyclo-metal ligand and IrCl3.3H2O to polymerization reaction in a mixed solution of 2-ethoxyethanol and water to obtain a chlorendic dimmer; subjecting the chlorendic dimmer and 2-picolinic acid to polymerization reaction in 1,2-dichloroethane, thus obtaining the blue organic electroluminescent phosphorescent material-iridium metal complex shown in the structural formula (I). The material can obtain good energy transmission efficiency and proper blue light emission wavelength, can be used for preparing blue or white phosphorescent electroluminescence devices and can achieve the aims of reducing the power consumption of the devices, improving the properties of the devices and prolonging the service lives.

The invention relates to a manufacturing method for double-color printing oily leather, and belongs to the technical field of leather manufacturing. The manufacturing method of the double-color printing oily leather comprises the following steps that a dry cow split leather blank is taken and sequentially subjected to leather fluffing, primary milling, oil roll painting, standing, printing, dryingand secondary milling, and the double-color printing oily leather is obtained; in the step of oil roll painting, oil is roll-painted on the surface of the leather blank obtained after primary milling, and the roll painting amount is 10-15 g per square foot; and in the step of printing, a printing material is roll-painted on the surface of the leather, a mixture of water-based acetic acid cotton gloss oil, 2-ethoxyethanol and dye water is taken as the printing material, the mass ratio of the water-based acetic acid cotton gloss oil to the 2-ethoxyethanol is 8:1, and the dye water is added according to the color needs. According to the manufacturing method for the double-color printing oily leather, the oily leather varieties are enriched, the application range of the oily leather is widened, and the manufactured double-color printing oily leather has the good water resistance and wear resistance.

The invention provides a blue organic electroluminescent phosphorescent material-iridium metal complex with a structural formula shown in a formula (I) in the specification. In the formula (I), R is a hydrogen atom, alkyl or alkoxy. A preparation method of the iridium metal complex comprises the following steps: firstly preparing a cyclo-metal ligand through Suzuki coupling reaction; then subjecting the cyclo-metal ligand and iridium (III) acetylacetonate to polymerization reaction in glycerin or 2-ethoxyethanol, thus obtaining the blue organic electroluminescent phosphorescent material-iridium metal complex with the structural formula shown in the formula (I). The material can obtain good energy transmission efficiency and proper blue light emission wavelength, can be used for preparing blue or white phosphorescent electroluminescence devices and can achieve the aims of reducing the power consumption of the devices, improving the properties of the devices and prolonging the service lives.

The present invention provides a red light organic electrophosphorescence material metal iridium coordination compound, which adopts 1-methyl-4-phenyl phthalazine or a derivative as a ring metal main ligand, adopts acetylacetone as an auxiliary ligand, and has a structural formula represented by a formula (1), wherein R is hydrogen or methyl. The preparation method comprises that: a Suzuki coupling reaction is performed to prepare a ring metal main ligand, the ring metal main ligand and IrCl3.3H2O are subjected to polymerization in a 2-ethoxyethanol and water mixed solvent to obtain a chloro-bridge dimer, and the chloro-bridge dimer and acetylacetone are subjected to a ligand exchange reaction to obtain the red light organic electrophosphorescence material metal iridium coordination compound. According to the present invention, 1-methyl-4-phenyl phthalazine or a derivative thereof is adopted as the ring metal main ligand, acetylacetone is adopted as the auxiliary ligand, and the emission wavelength can be adjusted so as to obtain the red light near the standard red color; and the organic electroluminescent device prepared from the material can emit high purity red light, the luminescence efficiency is high, and the preparation method is simple and is suitable for industrial production.

The invention relates to a synthesis method of 2, 2-ethoxyethanol, belonging to the technical field of medicine and chemical industry. The method comprises the steps of: taking compound of a formula (I) as a raw material, and hydrolytically reacting the raw material with inorganic acid to obtain dichloroacetic acid; reacting the obtained dichloroacetic acid with caustic alcohol in absolute ethyl alcohol in a backflow way, adding hydrochloric acid ethanol solution in a cooling way after the reaction, adjusting PH value, filtering and distilling to obtain 2, 2-ethyl diethoxyacetate; and reacting the 2, 2-ethyl diethoxyacetate obtained in step b with KBH4 and inorganic catalyst in inorganic catalyst in a backflow way to obtain the 2, 2-ethoxyethanol. The synthesis method has the advantages that the raw material is easily obtained, the technical process is simple, the reaction condition is stable, the reaction can be performed without high pressure, and the synthesis method is suitable for the industrial production on a large scale. The solvent ethanol can be recovered and used mechanically, the atom economy is good, the cost is low, the product yield is high, and the product quality is more than 98%.

The present invention provides a red light organic electrophosphorescence material metal iridium coordination compound, which has a structure formula represented by a formula (1), wherein R is methyl. The preparation method comprises that: a Suzuki coupling reaction is performed to obtain a ring metal ligand, the ring metal ligand and IrCl3.3H2O are subjected to a polymerization reaction in a 2-ethoxyethanol and water mixed solvent to obtain a chloro-bridge dimer, and the chloro-bridge dimer and the ring metal ligand are subjected to a ligand exchange reaction to obtain the red light organic electrophosphorescence material metal iridium coordination compound. According to the present invention, 1-phenoxy-4-(substituted phenyl)phthalazine is adopted as the ring metal ligand to synthesize to obtain the material, wherein the emission wavelength can be adjusted so as to obtain the red light near the standard red color; and the organic electroluminescent device prepared from the material can emit high purity red light, the luminescence efficiency is high, and the preparation method is simple and is suitable for industrial production.