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278 results about "Halohydrocarbon" patented technology

Organic compound that contains carbon and hydrogen, with halogen atoms substituting for one or more hydrogens.

Synthetic method of water soluble ultraviolet light absorber BP-9

The invention discloses a synthetic method of a water soluble ultraviolet light absorber BP-9. The method mainly comprises the following process steps: (1) carrying out methylation on the main raw materials of 2, 2', 4, 4'-tetrahydroxyl benzophenone, a transition metal salt catalyst and a mixed solvent which is prepared from dichloroethane and anhydrous ethanol in equal parts by weight to obtain 2, 2'-dihydroxyl-4, 4'-dimethoxyl benzophenone; (2) carrying out sulfonation reaction on the main raw materials of methylate, sulfamic acid and C1-C3 halohydrocarbon to obtain 2, 2'-dihydroxyl-4, 4'-dimethoxyl benzophenone-5, 5'-disulfonic acid; and (3) carrying out neutral reaction on the main raw materials of sulfonated product, inorganic base and ethanol water to finally obtain the BP-9 product. The synthetic method disclosed by the invention is few in reaction step, low in cost, high in product purity and stable in quality, and raw materials are easily available.
Owner:HUANGGANG MEIFENG CHEM TECH +1

Dielectric material based on multi-benzocyclobutene as well as preparation method and application thereof

The invention belongs to the technical field of dielectric materials, and particularly relates to a dielectric material based on polybenzocyclobutene as well as a preparation method and application of the dielectric material. According to the multi-benzocyclobutene-based dielectric material provided by the invention, different halogenated hydrocarbon, olefin and other raw materials are used, and on the basis of containing more than two benzocyclobutene groups, a specific group can be introduced into a connecting group so as to improve the dielectric property and thermal stability of the material; meanwhile, specific groups can be introduced into R2 and R3 through secondary Heck reaction to further improve the dielectric property and thermal stability of the material, so that the dielectric material with excellent comprehensive properties such as dielectric property and thermal stability is provided, and the technical problem of lack of dielectric materials for high-frequency and high-speed printed circuit boards (PCBs) in the prior art can be solved.
Owner:WUHAN DESYTEK ENVIRONMENTAL PROTECTION NEW MATERIAL CO LTD

Antibacterial nylon material as well as preparation method and application thereof

The invention relates to the technical field of antibacterial high polymer materials, in particular to an antibacterial nylon material as well as a preparation method and application thereof. The method comprises the following steps: carrying out anion ring-opening copolymerization on a seven-membered ring lysine monomer obtained by ring formation of lysine and a lactam monomer to obtain copolyamide, dissolving the copolyamide, and carrying out complete quaternization reaction by using halogenated hydrocarbon to obtain the antibacterial nylon material. The preparation method provided by the invention effectively avoids the problems of insufficient antibacterial property, obvious mechanical property reduction, poor thermal stability and the like of an antibacterial nylon material prepared by hydrochloric acid protonation in the prior art. Meanwhile, the seven-membered cyclic lysine monomer can be copolymerized without alkylation, the synthesis process is greatly simplified, the production efficiency is high, and the production cost is low. The prepared antibacterial nylon material has the characteristics of lasting and efficient antibacterial performance, high safety, environment friendliness, excellent mechanical property and thermal stability and the like, and can be widely applied to the fields of textiles, daily necessities, packaging materials, panels and the like.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES

Method for preparing polyarylester by interfacial polycondensation method

The invention provides a method for preparing polyarylester by interfacial polycondensation, which comprises the following steps: dissolving a diphenol monomer in an alkali solution to prepare a bisphenol salt solution, and dissolving an interfacial catalyst in a bisphenol salt water phase to obtain a water phase; dissolving aromatic dicarboxylic acid acyl chloride in a halogenated hydrocarbon solvent to obtain an organic phase; s2, slowly adding the organic phase obtained in the step S1 into the water phase in a stirring state within 10-60 minutes, and continuously reacting for 10-120 minutes in the stirring state; the product is separated out in the form of precipitate, the precipitated precipitate absorbs the halogenated hydrocarbon solvent, so that a liquid phase main body is water, a solid phase is a muddy product containing the halogenated hydrocarbon solvent, and the obtained muddy product is filtered, washed and dried to obtain a powdery product. According to the method disclosed by the invention, the polymer is directly precipitated by controlling the solute concentration and the mixing ratio, so that the efficient in-situ removal of the solvent is realized, the solvent is directly separated from water through simple filtration, and'zero separation, zero crushing and zero distillation 'is realized.
Owner:HUANGHAI CHEMICAL IND RESEARCH INSTITUTE (TIANJIN) CO LTD

Organic combined polluted underground water in-situ remediation method based on micro-nano iron-based material

The invention relates to an organic combined polluted underground water in-situ remediation method based on a micro-nano iron-based material. The method comprises the following steps: acquiring underground water pollution information; establishing a composite reaction zone at a preset position, and constructing a reduction-oxidation chain reaction system; and operating the composite reaction zone, collecting monitoring data, and optimizing the composite reaction zone until the composite pollution is degraded and removed to a preset value. Through series reaction of powerful reduction of the micro-nano iron-based material and advanced oxidation of the iron-based activated persulfate, the performance of the micro-nano iron-based material serving as a strong reduction material and an active agent is fully played, pollutants such as halogenated hydrocarbon in underground water are sequentially subjected to reduction degradation, pollutants such as benzene series and volatile phenol are sequentially subjected to oxidative degradation, and the pollution to the underground water is reduced. Effective management and control of underground water combined pollution of medical and chemical parks and enterprises are realized; a monitoring well is configured based on a composite reaction zone, and remediation materials are discontinuously added in combination with management and control conditions, or other management and control materials are flexibly selected, so that long-term management and control of groundwater pollution risks are realized.
Owner:HANGZHOU DADI ENVIRONMENTAL PROTECTION ENG CO LTD

Waste gas absorption liquid for treating large-air-volume low-concentration waste gas through water-based method

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.
Owner:XIAMEN ADIT ENVIRONMENTAL PROTECTION TECH CO LTD

Antibacterial and antioxidant ultrasonic induced piezoelectric hydrogel as well as preparation method and application thereof

The invention provides antibacterial and antioxidant ultrasonic-induced piezoelectric hydrogel and a preparation method and application thereof.According to the antibacterial and antioxidant ultrasonic-induced piezoelectric hydrogel, a compound containing amido and double bonds reacts with a halogenated hydrocarbon compound through quaternization reaction to synthesize a series of cationic quaternary ammonium salt serving as an antibacterial component, and an antioxidant component is introduced; and adding the hydrogel into a hydrogel precursor solution containing acrylic acid and N-isopropylacrylamide, and synthesizing the ionized water gel with antibacterial, antioxidant and ultrasonic induced piezoelectric properties by adopting a photocuring strategy. The hydrogel shows excellent mechanical properties, good biocompatibility and adhesion, and can generate an endogenous electric field under ultrasonic excitation to regulate cell behaviors. Experimental results show that the hydrogel can effectively promote infection inhibition and alleviate oxidative stress, and has a remarkable treatment effect in diabetes infected wound and articular cartilage repair. The hydrogel is simple in preparation method, low in cost and suitable for the biomedical fields of wound treatment, tissue repair and the like.
Owner:EIGHTH AFFILIATED HOSPITAL SUN YAT SEN UNIV (SHENZHEN FUTIAN)

Supermolecular lithium battery fire inhibitor as well as preparation method and application thereof

The invention relates to the technical field of lithium ion battery safety, in particular to a supramolecular lithium battery fire inhibitor and a preparation method and application thereof. The supramolecular lithium battery fire inhibitor is prepared from the following raw materials in parts by weight: 10-50 parts of a supramolecular synergist, 30-90 parts of halogenated hydrocarbon and 0-20 parts of mineral oil, wherein the supramolecular synergist is prepared from perfluorohexanone and ethyoxyl (pentafluoro) cyclotriphosphazene. The supramolecular lithium battery fire inhibitor provided by the invention has relatively high electrical insulativity and efficient fire extinguishing characteristic, and the supramolecular acting force and fire extinguishing synergistic elements of the system are increased by introducing the supramolecular synergist, so that the stability, volatility and fire extinguishing efficiency of the inhibitor system are further improved, and the application value of the supramolecular lithium battery fire inhibitor is greatly increased.
Owner:TSINGHUA UNIVERSITY +1

A method for synthesizing a dialkylphosphinic ester

This invention discloses a method for synthesizing dialkylphosphinates, belonging to the field of organic synthesis technology. The method uses hypophosphite and haloalkanes as starting materials. First, a hypophosphite is generated through a heated and pressurized reaction under the action of a phase transfer catalyst. The obtained hypophosphite does not require complex purification; it is directly reacted with an olefin under heated and pressurized conditions in the presence of a free radical initiator to obtain the target product, dialkylphosphinate. The method of this invention uses inexpensive and readily available raw materials, has a simple process route, includes only two core reactions, operates under mild conditions, is safe and convenient, produces few and easily treatable byproducts, has a high product yield, and is simple to purify. It is very suitable for large-scale industrial production, providing an economical and efficient synthetic route for the preparation of high-performance halogen-free flame retardants.
Owner:ZHEJIANG WANSHENG CO LTD

Pipette adapter

The utility model discloses a pipette adapter and relates to the field of chemical analysis. The adapter is used for connecting a micropipettor at the upper end and a glass tube at the lower end. The adapter is mainly composed of a silica gel outer wall and a sand core filter arranged in the middle, and a cylindrical space with a certain diameter is reserved in the adapter. The adapter can be connected with glass tubes which are made of different materials and have various shapes, and halogenated hydrocarbon, ketone and aromatic hydrocarbon organic solvents can be accurately measured according to the characteristic.
Owner:HUBEI HUACHEN ECOLOGICAL ENVIRONMENT CO LTD

Polyphenyl ether resin composition, polyphenyl ether composite material and preparation method and application thereof

The invention discloses a polyphenyl ether resin composition, a polyphenyl ether composite material and a preparation method and application thereof. The polyphenyl ether resin composition is obtained by reacting polyphenyl ether and naphthoic acid compounds in a melt, the polyphenyl ether has a repeating unit with the following structure: R1, R2, R3 and R4 are respectively and independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, halogenated alkyl, alkoxy or halogenated alkoxy; the naphthoic acid compound is at least one of naphthoic acid or hydroxyl naphthoic acid. Compared with polyphenyl ether resin, the polyphenyl ether resin not only can improve the gas barrier property of the polyphenyl ether composite material in a melt, but also can improve the high-temperature injection molding processing stability of the polyphenyl ether composite material.
Owner:KINGFA SCI & TECH CO LTD

A thiadiazole compound containing a hindered phenol group, its preparation method and its use in the field of lubricating oil additives

The present invention provides a thiadiazole compound containing a hindered phenol group, a preparation method thereof and its use in the field of lubricating oil additives. The preparation method of the thiadiazole compound containing a hindered phenol group comprises the following steps: mixing a carboxylic acid compound containing a hindered phenol group with thionyl chloride, removing impurities under reduced pressure to obtain an acyl chloride compound containing hindered phenol; stirring and mixing 2-mercapto-5-amino-1,3,4-thiadiazole with a halogenated hydrocarbon compound, filtering, washing and drying to obtain a 2-mercapto-5-amino-1,3,4-thiadiazole derivative; adding a hindered phenol acyl chloride compound, 2-mercapto-5-amino-1,3,4-thiadiazole derivative and an alkaline additive to an organic solvent, washing, drying and purifying to obtain a thiadiazole compound containing a hindered phenol group. The thiadiazole compound containing a hindered phenol group is an antioxidant, extreme pressure and anti-wear additive, which can be applied to synthetic ester lubricants and has a good antioxidant, extreme pressure and anti-wear effect.
Owner:DALIAN UNIV OF TECH PANJIN INST OF IND TECH +1

Simultaneous preparation method of micro-nano-scaled and stabilized zero-valent iron based on ball milling of terephthalic acid

This invention discloses a method for the simultaneous preparation of micronized and stabilized zero-valent iron (ZVFe) based on ball milling with terephthalic acid, belonging to the field of groundwater pollution remediation materials. The method includes the following steps: 1) incorporating terephthalic acid into micron-sized ZVFe powder and mechanically ball milling it; 2) cleaning the material with a solvent and drying it to obtain micronized and stabilized ZVFe reducing material. This invention simultaneously achieves the micronization and stabilization of ZVFe. This method enhances the reducing activity, internal surface hydrophobicity, and electron selectivity of ZVFe materials, improves their reducing performance and electron selectivity for pollutants such as halogenated hydrocarbons and heavy metals, effectively inhibits the oxidative deactivation of ZVFe materials in the aquatic environment and the hydrogen evolution side reaction with water, enabling ZVFe materials to maintain high reducing activity stably in water for a long period. This invention solves the technical problems of poor stability and difficult storage of micronized ZVFe materials in water, which is beneficial for reducing material replacement frequency and resource consumption.
Owner:ZHEJIANG UNIV

A method of cleaning a reactor for producing aluminum trihydride

The application discloses a cleaning method of a cauldron for preparing aluminum trihydride, which comprises the following steps: (1) under an inert gas atmosphere, adding a polyhalogenated hydrocarbon solvent and an inorganic salt abrasive into the cauldron, and stirring intensively to grind off the wall-bonding substances in the cauldron; (2) emptying the cauldron, and slowly feeding a buffer solution into the cauldron through a bottom pipe in a vacuum-extraction mode, so that the buffer solution is immersed into the cauldron from the bottom of the cauldron; and (3) sequentially using dilute alkali, dilute acid and water to completely immerse the wall-bonding layer, and then washing the cauldron with water. The method can safely and effectively remove the wall-bonding substances on the cauldron.
Owner:LIMING RES INST OF CHEM IND

Method for separating composite material, and recycling method

PCT designated stageWO2025192276A1Plastic recyclingPolymer scienceHalohydrocarbon
The present invention addresses the problem of efficiently separating and recovering a polyamide resin from a composite material containing the polyamide resin. The present invention provides a method for separating a composite material, said method comprising: preparing the composite material, which contains a first material containing a polyamide resin and a second material and a first solvent containing formic acid and a halogenated hydrocarbon; bringing the composite material into contact with the first solvent to selectively dissolve the first material in the first solvent, whereby a first mixture containing the second material and a first solution in which the first material is dissolved in the first solvent is obtained; separating the first solution and the second material from the first mixture; precipitating the first material by adding to the separated first solution a second solvent that is a poor solvent of the first material, whereby a second mixture containing the precipitated first material and a mixed solvent of the first solvent and the second solvent is obtained; and separating the deprecipitated posited first material and the mixed solvent from the second mixture.
Owner:NAT INST FOR MATERIALS SCI

Preparation method of ionic liquid

A method of preparing an ionic liquid includes the following steps. A halogen-containing compound is reacted with a first compound to form a second compound. The halogen-containing compound includes a halohydrocarbon, a sulfonyl halide, or a combination thereof. The first compound includes an amine compound having a tertiary amine group, a phosphine compound, or a combination thereof. The second compound includes a first quaternary ammonium salt, a first quaternary phosphonium salt, or a combination thereof. The second compound and a lithium salt are reacted in a microwave device to form a third compound. The third compound includes a second quaternary ammonium salt, a second quaternary phosphonium salt, or a combination thereof. Anions of the second compound and the third compound are different. A microwave power of the microwave device is 700 watts to 1400 watts.
Owner:HON HAI PRECISION INDUSTRY CO LTD +1

Process for the preparation of block copolymers and block copolymers obtained therefrom

The invention relates to a process for preparing a block copolymer, the process comprising: a) adding at least one ethylenically unsaturated hydrophilic monomer and a composition Y to a reactor for polymerization; b) adding at least one ethylenically unsaturated hydrophobic monomer to the reactor for polymerization after the polymerization of step a) to obtain an amphiphilic diblock copolymer; c) adding at least one ethylenically unsaturated hydrophobic monomer to the reactor for polymerization after the polymerization of step b); wherein the composition Y contains: A) at least one halogen molecule or halogenated hydrocarbon optionally substituted by cyano, B) at least one iodide salt, and C) at least one free radical polymerization initiator, wherein the equivalent ratio of the at least one ethylenically unsaturated hydrophobic monomer in step b) to the polymer formed from the at least one ethylenically unsaturated hydrophilic monomer in step a) is in the range of 5 to 60.
Owner:BASF SE +1

Biogas fermentation system and method

The invention belongs to the technical field of biomass energy utilization, and particularly relates to a biogas fermentation system and method. The biogas fermentation system comprises a pretreatment section, a desulfurization section, a hydrolysis section, an acid production section and a methane production section which are sequentially arranged from top to bottom. A discharge pipe at the bottom of the pretreatment section penetrates through the liquid distributor to reach the middle part of the desulfurization section; the return pipe is connected with the liquid distributor through the pump; gas in the hydrolysis section enters the desulfurization section for desulfurization through a gas guide pipe and a floating valve group in the desulfurization section; gas in the acid production section enters the hydrolysis section through a gas guide pipe and a floating valve group in the hydrolysis section to be hydrolyzed; and gas in the methane production section enters the acid production section through a gas guide pipe and a floating valve group in the acid production section to be subjected to acid production treatment. According to the invention, CO2 removal, H2S removal, oxygen removal, ammonia removal, mercaptan removal, halogenated hydrocarbon removal and siloxane removal are carried out on the fermentation system through a plurality of strengthening means, so that high-quality biogas and functionalized biogas slurry are obtained.
Owner:ENERGY RES INST OF SHANDONG ACAD OF SCI

Synthesis method of novel acrylate monomer with bifunctional structure

The invention belongs to the field of organic synthesis, and provides a synthesis method of a novel acrylate monomer with a bifunctional structure, which comprises the following steps: S1, reacting an ester group-containing alcohol compound with a carbonylation reagent to obtain an intermediate product A; s2, acidifying an alcohol amine compound, and reacting with an acryloyl reagent to obtain an intermediate product B; s3, reacting the intermediate product A with the intermediate product B to obtain a target product C, namely the novel acrylate monomer with the bifunctional structure; wherein R1 is hydrogen or alkyl, R2 is an organic group containing an ester group, m is an integer greater than or equal to 1, R3 and R4 are independently selected from at least one of arene oxyl, halogenated hydrocarbon oxyl or heterocyclic ring containing nitrogen atoms, R5 is alkylene, and L is selected from at least one of halogen atoms, hydroxyl or hydrocarbon oxyl. The method is simple to operate, the reaction process is easy to control and realize, and industrial production is easy.
Owner:CHANGSHU CHANGJI CHEM

Halohydrocarbon and heavy metal combined pollution natural attenuation life cycle benefit evaluation method

The invention discloses a halogenated hydrocarbon and heavy metal combined pollution natural attenuation life cycle benefit evaluation method, and belongs to the technical field of environmental science and engineering. The method comprises the following steps: constructing an MNA full-life-cycle system boundary, and establishing a list database including monitoring well network full-life-cycle operation and maintenance, long-term sampling analysis and natural attenuation asset accounting; establishing a biogeochemical coupling evaluation model, and introducing a coupling factor to quantify the synergistic environmental benefit of halogenated hydrocarbon anaerobic degradation and heavy metal reduction fixation; selecting global warming potential, primary energy consumption and secondary environment risk indexes to carry out characterization evaluation; a net environmental benefit (NEB) is calculated based on a time discount principle. According to the method, the ecological and economic comprehensive advantages of the MNA technology in the specific combined pollution area can be scientifically and quantitatively revealed, and a decision basis is provided for green restoration technology screening and long-term monitoring scheme optimization.
Owner:ZHEJIANG UNIV

Polyethylene catalysts and methods for their preparation and ultra-high molecular weight polyethylene and methods for their preparation

This invention relates to the field of catalysts, specifically to a polyethylene catalyst and its preparation method, as well as ultra-high molecular weight polyethylene and its preparation method. The method includes the following steps: (1) under diluent conditions, a magnesium halide precursor, an alcohol compound, and a first internal electron donor undergo a first contact reaction to obtain a first reaction solution; (2) a second internal electron donor is added to the first reaction solution to undergo a second contact reaction to obtain a second reaction solution; (3) a titanium precursor is added to the second reaction solution to undergo a third contact reaction to obtain a third reaction solution; (4) a haloalkane is added to the third reaction solution, followed by a third internal electron donor to undergo a fourth contact reaction. The catalyst prepared by this invention exhibits good catalytic performance.
Owner:PETROCHINA CO LTD

A biomimetic amphoteric surfactant, its preparation method and application

The application relates to the technical field of fine chemicals, in particular to a biomimetic amphoteric surfactant as well as a preparation method and application thereof; the preparation method of the biomimetic amphoteric surfactant comprises the following steps: reacting a fatty amine polyoxyethylene ether with a halogenated hydrocarbon to obtain a benzyl quaternary ammonium salt intermediate; cooling the benzyl quaternary ammonium salt intermediate, then adding phosphorus pentoxide to react; after the addition is completed, water is added, the reaction is continuously carried out, and the biomimetic amphoteric surfactant is obtained; the biomimetic amphoteric surfactant simultaneously integrates three characteristics of phosphate anion, polyether non-ion and benzyl quaternary ammonium salt cation, effectively solves the industry problem that traditional phosphates and cationic settling agents are incompatible, and is applied to metal processing fluid, can realize stable compounding with cationic settling agents while retaining excellent extreme pressure lubricity and hard water resistance, and can replace traditional extreme pressure agents such as environmentally-unfriendly chlorinated paraffin.
Owner:NANJING VIROSEC CO LTD

Non-aqueous electrolyte and secondary battery

In order to solve the problem that the existing electrolyte is difficult to give consideration to the high-temperature storage life and the improvement of the battery performance, the invention provides a non-aqueous electrolyte, the non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt, an additive and a stabilizer, the stabilizer comprises a compound as shown in a structural formula 1, and the additive comprises a compound as shown in a structural formula 2; in the structural formula 1, R1 is selected from C1-C5 halogenated alkyl; in the structural formula 2, n is 0 or 1, and R2 is selected from H, halogen, C1-C3 alkyl or C1-C3 halogenated alkyl. The invention also provides a secondary battery comprising the non-aqueous electrolyte. The non-aqueous electrolyte provided by the invention has a relatively long high-temperature storage life on the basis of improving the electrochemical performance of the secondary battery.
Owner:NANTONG CAPCHEM ELECTRONICS MATERIALS CO LTD

Porous crystal material for air purification as well as preparation method and application of porous crystal material

The invention discloses a porous crystal material for air purification and a preparation method and application thereof. The crystal material belongs to a tetragonal system, the space group is P43212, the simple formula of the chemical structure is [Ni (Htbc) (fdpy) (H2O)], the molecular formula is C54H42NiN2O7, and the cell parameter is # imgabs0 # alpha = beta = gamma = 90 degrees; the prepared crystal material has a clear space structure and an accurate molecular formula, has good adsorption performance on harmful gas micromolecules, is used as a porous crystal material for removing harmful gas pollutants such as formaldehyde, acetylene, ethylene, halogenated hydrocarbon, nitric oxide, nitrogen dioxide, ammonia or sulfide and the like for air purification, and has a wide application prospect. The technology has the advantages of simplicity in operation, low cost, stable performance, suitability for large-scale production and the like.
Owner:NINGBO UNIV

Process for the modification of a beta-ketimine ligand precursor and products thereof

This invention relates to a simple method for modifying β-ketoimine ligand precursors, wherein L... Ph The reaction involves a lithium compound with H2 solution; then a haloalkane is added for C-C coupling; followed by the addition of an acid solution to complete the modification of the β-ketoimine ligand precursor, yielding a terminally alkylated ketoimine. This invention relates to a simple method for modifying β-ketoimine ligand precursors, specifically involving the removal of the proton at the α-position of the β-ketoimine ligand precursor from commercially available n-butyllithium to form a deprotonated β-ketoimine lithium compound, followed by C-C coupling to achieve alkylation at the α-position of the ketocarbonyl group, thus providing a convenient modification of the β-ketoimine ligand precursor.
Owner:SUZHOU UNIV

Highly efficient stable grignard reagent and green preparation method thereof

This invention relates to the field of organic synthesis technology, specifically to a highly efficient and stable Grignard preparation and its green preparation method. By weight, it comprises 8-18 parts of a magnesium source, 40-92 parts of a halogenated hydrocarbon, 150-200 parts of a green solvent, 15-20 parts of ethylene glycol dimethyl ether, and 2.3-3.2 parts of a synergistic stabilizer. The green solvent is 2-methyltetrahydrofuran, or a composite solvent with a weight ratio of 2-methyltetrahydrofuran:methyl tert-butyl ether of 150-160:40-50. The synergistic stabilizer is composed of 1.5-2.0 parts of N,N,N',N'-tetramethylethylenediamine and 0.8-1.2 parts of butylated hydroxytoluene, or composed of 1.5-2.0 parts of N,N,N',N'-tetramethylethylenediamine and 1.0 part of phenothiazine. This invention uses a green solvent system to replace traditional toxic and harmful solvents, and combines it with a solvent recovery process to achieve solvent recycling, which greatly reduces waste emissions and makes the production process safer and more environmentally friendly, in line with the development direction of green chemical industry.
Owner:LANZHOU HONGSHENG FINE CHEM CO LTD

Ice source and low-temperature air source heat pump combined energy supply system based on halogenated hydrocarbon refrigerant

The utility model provides an ice source and low-temperature air source heat pump combined energy supply system based on a halogenated hydrocarbon refrigerant, which relates to the technical field of heat pumps and comprises a cold and hot dual-system heat pump subsystem, an ice mold subsystem and a finned tube heat exchanger subsystem, the two ends of one side of the cold and hot dual-system heat pump subsystem are connected with a water supply loop and a water return loop on the user side respectively. Two ends of the other side of the cold and hot dual-system heat pump subsystem are respectively connected with one side of the ice mold subsystem and one end of the finned tube heat exchanger subsystem; the other side of the ice mold subsystem is also connected with the other end of the finned tube heat exchanger subsystem; and an ice-making medium on the other side of the cold and hot dual-heating heat pump subsystem is a halogenated hydrocarbon refrigerant. The system is simple in structure, easy to operate and rapid and convenient to install, the medium adopted by the system is halogenated hydrocarbon refrigerant, the operation cost is low, and the effect is obvious.
Owner:XIAN ZHONGYA TECH DEV CO LTD

An N^N^N type terpyridine platinum complex and its preparation method and application

The present invention discloses an N^N^N type terpyridine platinum complex, its preparation method, and application. The present invention relates to the technical field of fluorescent probe material preparation, and specifically to an N^N^N type terpyridine platinum complex, its preparation method, and application. The present invention mixes 4'-(3,4-bisethoxyphenyl)-2,2':6',2''-terpyridine (S1) with K2PtCl4, adds a halogenated hydrocarbon solvent and an alcohol solvent, and conducts a heating reaction. After the reaction, the solvent is removed by reduced pressure distillation, and column chromatography is used for purification to obtain an N^N^N type terpyridine platinum complex. The preparation method of the N^N^N type terpyridine platinum complex of the present invention has readily available raw materials, a simple reaction process, and can be industrially produced. It has specific targeting to lysosomes, low cytotoxicity, and good two-photon absorption activity, and has good application prospects in lysosomal analysis and imaging products.
Owner:SHANDONG HAIHUA GRP CO LTD