1611 results about "Methyl group" patented technology

The invention relates to the technical field of quantum computing and molecular electronic devices, in particular to a probabilistic bit device based on polyfluoroaryl methyl free radicals and a preparation method of the probabilistic bit device. According to the probabilistic bit device, the coupling efficiency of molecules and electrodes is improved by virtue of the characteristic that the paramagnetic unpaired electron spin state of tri (polyfluoroaryl) methyl free radical molecules can be used as a random expansion physical entropy source and high electronegativity and stability formed by modification of a plurality of strong electron-withdrawing fluorine atoms in the molecules. During the operation period of the device, the spin fluctuation can efficiently regulate and control tunneling current passing through molecules, promote random conversion between output high and low current states, show excellent random binary fluctuation characteristics, and simultaneously have high sensitivity and long coherence time. Compared with the prior art, the device has remarkable advantages in the aspects of device stability, energy efficiency ratio and external field controllability. The preparation method is simple and convenient to operate, mild in reaction condition and beneficial to large-scale production.

The invention belongs to the technical field of organic radiation luminescence and radiation imaging, and discloses an aggregation-induced delayed fluorescence (AIDF) type organic scintillator material and a preparation method thereof, and a preparation method and application of a flexible organic scintillation film. The molecular structure of the material comprises carbonyl, methylene, sulfuryl and other connecting units, phthalonitrile is used as an acceptor unit, carbazole is used as a donor unit, an aggregation-induced excitation state is formed through space charge transfer among molecules, efficient AIDF luminescence and large Stokes shift characteristics are realized, the self-absorption phenomenon is effectively avoided, and the luminescent efficiency is improved. The X-ray fluorescence probe is suitable for a luminescence process under an X-ray excitation condition, the sensitivity of X-ray detection is remarkably improved, and the lowest detection limit can reach 276nGy.s <-1 > and is far superior to the 5.5 mu Gy.s <-1 > standard required by medical diagnosis. Besides, the flexible scintillator film prepared based on the material system radiates and emits light within the waveband range of 450-750 nm and is perfectly matched with the response area of a silicon-based detector, X-ray imaging with the high signal-to-noise ratio is achieved, and the imaging resolution is as high as 20.01 lp.mm <-1 >.

The invention relates to the field of organic synthesis, in particular to a synthetic method of 1-(2, 6, 6-trimethyl-1, 3-cyclohexadiene-1-yl) ethanone, and particularly relates to a synthetic method of 1-(2, 6, 6-trimethyl-1, 3-cyclohexadiene-1-yl) ethanone by taking 4-acetyl-3, 5, 5-trimethylcyclohexene as a raw material and carrying out bromination and elimination steps to synthesize the 1-(2, 6, 6-trimethyl-1, 3-cyclohexadiene-1-yl) ethanone. The method has the advantages of easily available raw materials and high reaction yield, and can be industrially implemented on a large scale.

The invention relates to application of a heterocyclic compound as a fluorescent probe. The structural formula of the heterocyclic compound is shown as a general formula I, and R1, R2, R3, R4, R5, R6, R7 and R8 are independently one of hydrogen, alkyl, hydroxyl, phenyl, hydroxyphenyl, indole and oxymethyl. According to the present invention, the heterocyclic compounds represented by the general formula I can be specifically positioned in mitochondria, and have long fluorescence lifetime, such that the heterocyclic compounds are suitable for being used as mitochondria fluorescence probes.

The embodiment of the invention discloses a preparation method of trifluoromethyl sulfinate. The preparation method comprises the following steps: reacting a trifluoromethyl sulfinyl reagent with an amino compound containing hydroxyl to obtain a trifluoromethyl sulfinate intermediate; and reacting the trifluoromethyl sulfinate intermediate with alkali metal salt in an organic solvent to obtain the trifluoromethyl sulfinate. According to the embodiment of the invention, firstly, the trifluoromethyl sulfinyl reagent reacts with the amino compound containing the hydroxyl group to obtain the trifluoromethyl sulfinate intermediate, and then the trifluoromethyl sulfinate and the alkali metal salt react in the organic solvent, so that the high-purity trifluoromethyl sulfinate can be prepared with high yield under mild conditions. The yield and the purity of the target product are effectively improved, and meanwhile, the production condition requirement and the environmental pollution degree are reduced, so that large-scale production and application are facilitated.

The invention provides an optical monomer as well as a preparation method and application thereof, the structural general formula of the optical monomer is shown in the specification, in the formula, R1 and R2 are groups with the structural formula shown in the specification; or, one of R1 and R2 is hydrogen, and the other one of R1 and R2 is a group shown in the structural formula; r0 in the group represents hydrogen or methyl. The optical monomer provided by the invention has a (methyl) acrylate group and has the properties of high refractive index and low volume shrinkage; the monomer contains a plurality of aromatic rings with high molar refractive index and low molar volume, sulfur atoms with higher molar refractive index and dibenzothiophene groups with both aromatic rings and sulfur, so that the whole molecule of the monomer has extremely high refractive index, and the whole optical monomer is small in molecular weight and convenient to migrate.

The invention provides an Au nanocluster-Cu monatomic / titanium dioxide photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalysis. According to the invention, the Cu monatomic atom is used as a catalyst for hydrogen evolution reaction, the Cu monatomic atom and the Au nano-cluster are loaded at the same time, the Cu monatomic atom can be used as an electron transport bridge to regulate the electronic structure of the Au nano-cluster, the synergistic effect of the Cu monatomic atom and the Au nano-cluster is realized, the catalytic activity is regulated and controlled together, and efficient series connection of multi-step reaction is realized; therefore, the product selectivity can be accurately regulated and controlled; the catalytic oxidation reaction can be dynamically adjusted through carrier mediation or direct contact by virtue of the electron interaction between the Cu monatomic and the Au nano-cluster, so that the electron distribution in the catalytic process is favorably optimized, the reaction energy barrier of C-C bond breakage and hydroxymethyl oxidation is regulated and controlled, and the dynamic performance of generating GA and hydrogen through photocatalytic oxidation of EG is improved.

The present invention provides a composition for forming a gel polymer electrolyte which includes a lithium salt; an organic solvent; and a crosslinking compound represented by Formula 1. wherein in Formula 1, L1, L2, L3, and L4 are each independently selected from a direct bond or an alkylene group having 1 to 3 carbon atoms, L5 and L6 are each independently an alkylene group having 1 to 20 carbon atoms in which at least one methylene group is optionally substituted with an ether group and at least one hydrogen is substituted with fluorine, and R1 and R2 are each independently selected from hydrogen, an alkyl group having 1 to 3 carbon atoms, or a halogen.

A photoelectric composite cable for an underwater buoy, and a preparation process therefor. A polyurethane, a self-repairing polyurethane prepolymer, and a composite nano zinc oxide are selected as an outer sheath base material. A modified polysiloxane having a B-O six-membered ring dynamic cross-linked network and a long-chain alkane group and an amino is introduced into the self-repairing polyurethane prepolymer; 5,5'-methylenedisalicylaldehyde and isophorone diisocyanate are together subjected to stepwise polymerization with the modified polysiloxane, and the 5,5'-methylenedisalicylaldehyde is cross-linked with diphenylmethane diisocyanate to obtain a self-repairing polyurethane prepolymer; and nano zinc oxide is subjected to a modification treatment, wherein dodecyltrimethoxysilane and 3-glycidoxypropyltrimethoxysilane are used for dual modification, such that super-hydrophobic nano zinc oxide having good thermal stability and high dispersity is prepared in a toluene system.

This polarizing film containing a base material is characterized in that the base material includes an azo compound represented by formula (1) or a salt thereof (compound A), and an azo compound represented by formula (2) or a salt thereof (compound B). (In formula (1), X1 represents an amino group which may have a substituent, a phenylamino group which may have a substituent, a naphthylamino group which may have a substituent, a benzoylamino group which may have a substituent, or a naphthotriazole group which may have a substituent, Q1 and R1 to R4 each independently represent an optional substituent, and m represents an integer of 1 to 3.) (In formula (2), X2 represents an amino group which may have a substituent, a phenylamino group which may have a substituent, a naphthylamino group which may have a substituent, a benzoylamino group which may have a substituent, or a naphthotriazole group which may have a substituent, Q2 and R5 to R8 each independently represent an optional substituent, R9 represents a hydrogen atom or a methyl group, and n represents an integer of 1 to 3.)

The invention relates to an optical monomer and a preparation method and application thereof, the structural general formula of the optical monomer is shown as G1, G2, G3, G4, G5 and G6, R1 represents hydrogen, phenyl, halogen and C1-C4 alkyl, and A1 represents C1-C4 alkyl or phenyl; r2 represents hydrogen or methyl; n is a positive integer selected from 1-10. The optical monomer provided by the invention contains a plurality of aromatic rings with high molar refractive index and low molar volume, and also contains sulfur atoms with relatively high molar refractive index, so that the whole molecule of the whole monomer is extremely high in refractive index. The monomer structure provided by the invention has a plurality of branched chains, the overall molecular weight is small, and the molecules are not easy to agglomerate.

The invention discloses hydrolysis-resistant liquid phosphite ester and a preparation method and application thereof.The hydrolysis-resistant liquid phosphite ester is prepared by the steps that 2, 2, 4-trimethyl-1, 3-pentanediol and phosphorus trichloride or phosphite triester serve as raw materials, a cyclization reaction is conducted firstly, and then the hydrolysis-resistant liquid phosphite ester is obtained; and then carrying out nucleophilic substitution on Cl or aryl and alkyl on the cyclized intermediate by using higher saturated monohydric alcohol with more than C8, wherein the molecular structure is as shown in formula I in the specification. The liquid phosphite ester is novel liquid phosphite ester, the main body of the liquid phosphite ester is of a six-membered ring structure, the basic structure of the phosphite ester is reserved to the maximum extent, and the anti-oxidation effect of the phosphite ester is guaranteed; hydrophobic aliphatic chain structures on phosphorus atoms and branched chains of the phosphorus atoms prevent water molecules from approaching P-O bonds, so that the phosphorus atoms and the branched chains are prevented from being attacked by the water molecules, and the hydrolysis resistance is improved under the conditions that any additional amine hydrolysis-resistant agent is not used and any steric hindrance group is not introduced; good practical value, economic value and market prospect are realized.

The invention relates to the technical field of finishing agents, and discloses a fluoride-free leather water-repellent finishing agent and a preparation process thereof. The preparation method comprises the following steps: reacting hydrogen-containing silicone oil, N-methylallylamino hydroxypropyl alkane and a bromoalkane monomer to obtain hydroxyl quaternary ammonium salt silicone oil; the fluorine-free leather water-repellent finishing agent contains hydrophobic silicone oil and a plurality of alkyl long carbon chains, and the hydrophobic silicone oil and the alkyl long carbon chains are introduced into a polyurethane molecular chain through a polymerization chain extension reaction, so that the hydrophobic and water-repellent properties of the polyurethane finishing agent and the leather are remarkably improved, and the water-repellent property of the leather is improved. And the hydroxyl quaternary ammonium salt silicone oil contains an organosilane quaternary ammonium salt antibacterial group which is introduced into a polyurethane molecular chain, so that the finishing agent and the leather are endowed with excellent antibacterial performance.

The present invention is an addition-curable silicone composition containing components (A) to (C): (A) An addition reaction product of an organopolysiloxane represented by formula (1) and a compound represented by formula (2), the addition reaction product having two addition-reactive carbon-carbon double bonds per molecule. (1) (R1 is a C1-12 monovalent hydrocarbon group, R2 is a methyl group or a phenyl group, a is an integer of 0-50, and b is an integer of 0-300. ), (2) (R3 represents a C1-12 divalent hydrocarbon group.), (B) an organosilicon compound having a hydrogen atom bonded to at least two silicon atoms per molecule, and (C) a hydrosilylation reaction catalyst. Thus, provided are an addition-curable silicone composition that has high transparency and a high refractive index and yields a cured product having high strength and high elongation and a highly reliable optical semiconductor device sealed by a cured product thereof.

The application discloses a kind of rapamycin 40-position hydroxyl alkyl synthesis method, belong to the technical field of drug synthesis.The method is: in inert gas atmosphere, rapamycin is sequentially added into microwave reaction tube, molecular sieve and additive, additive is triphenyl phosphine oxide, tri (4-fluorophenyl) phosphine oxide, tri (4-methoxyphenyl) phosphine oxide, tricyclohexyl phosphine oxide, triphenyl phosphine sulfide, triphenyl phosphine selenide or hexamethylphosphorus triamide;Subsequently, alkylating agent, base and organic solvent are added, sealed, reacted in microwave reaction instrument, cooled, filtered, washed, dried, filtered, purified, to obtain the alkylated product of rapamycin 40-position hydroxyl group.The method compared with the existing rapamycin 40-position hydroxyl group alkyl modification method, simple operation, low cost, short reaction time, less impurities, easy separation, higher yield, up to 79.1%, suitable for industrial production, can provide new ideas for synthesis and development of rapamycin derivatives such as everolimus.

The invention discloses an aluminum oxide coated diaphragm and a preparation method thereof in the field of lithium ion battery diaphragms. The diaphragm comprises aluminum oxide particles, a fluorine-containing porous organosilicon compound, a phosphorus heterocyclic covalent organic framework, a binder, a dispersant and deionized water. The fluorine-containing porous organosilicon compound is prepared by mixing methyltrimethoxysilane, perfluorohexyltrimethoxysilane and water, adding ammonia water to adjust the pH value, then reacting to form a sol-gel system, adding amino silane to continue reacting, and then carrying out rotary evaporation, calcination and grinding. The phosphorus heterocycle covalent organic framework is prepared by dissolving cyanuric chloride, triphenylphosphine oxide and anhydrous tetrahydrofuran, adding imidazole bromide to react to form an intermediate, then adding ethylene glycol to continuously react, and performing vacuum drying and grinding to obtain the phosphorus heterocycle covalent organic framework. According to the diaphragm, the interface adhesion and electrolyte wettability are enhanced synergistically through the bifunctional compound, and the thermal stability and the cycle performance are improved.

The invention relates to the technical field of organic synthetic chemistry, in particular to a preparation method of ethyl 2-n-butyl acetoacetate, which comprises the following specific steps: S1, preparation of a composite solid base catalyst, S2, synthesis of ethyl 2-n-butyl acetoacetate, S3, post-treatment of a reaction solution, and S4, separation and purification of a product. The preparation method has the following beneficial effects that the magnesium-aluminum composite oxide is used as a carrier, and the composite solid base catalyst loaded with potassium and lanthanum has relatively high catalytic activity and selectivity; the magnesium-aluminum composite oxide carrier has a relatively large specific surface area and rich alkaline sites, so that a good catalytic environment is provided for the reaction; as a main active component, potassium ions can effectively activate alpha-active methylene of ethyl acetoacetate and promote formation of negative ion intermediates; the introduction of lanthanum ions can adjust the electronic structure of the catalyst, enhance the stability of the active center and inhibit the occurrence of side reactions.

The invention discloses a dithiocarbamate monomer, a holographic recording medium, a preparation method and a related device, the structural general formula of the monomer is as shown in G1 and G2, R1 represents any one of hydrogen, halogen and C1-C4 alkyl, R3 represents any one of hydrogen, halogen and C1-C4 alkyl, A1 represents C1-C4 alkyl, A2 represents hydrogen or methyl, n is a positive integer, and n = 1-10. The dithiocarbamate monomer provided by the invention has high refractive index, and the holographic recording medium with high sensitivity, high diffraction efficiency and high refractive index modulation degree can be obtained by applying the dithiocarbamate monomer to preparation of the photopolymer holographic recording medium; holographic recording media can be used to prepare volume holographic gratings, holographic optical elements, and optical devices.

A magnetic toner comprising a toner particle comprising a binder resin and a magnetic body, wherein the binder resin comprises a styrene-acrylic resin, the styrene-acrylic resin comprises a monomer unit represented by Formula (1):where, in Formula (1), R1 represents a hydrogen atom or a methyl group; and R2 represents a linear alkyl group having CB carbon atoms, CB being an integer from 10 to 15; the magnetic body comprises an alkyl group having CM carbon atoms, on a surface of the magnetic body, CM being an integer from 4 to 20; CB and CM satisfy Formula (3):|CM−CB|≤10  (3), andin a cross-sectional observation of the magnetic toner using a transmission electron microscope, a coefficient of variation of an occupied area ratio of the magnetic body in a specific square grid, is 80.0% or lower.

The invention belongs to the technical field of organic electroluminescence, and discloses an organic metal iridium complex, a preparation method and an organic electroluminescence device containing the organic metal iridium complex. The structure of the organic metal iridium complex is as shown in formula I. According to the organic metal iridium complex provided by the invention, a nitrogen-containing heterocyclic functional group is introduced to a pyridine ring, and meanwhile, some electron withdrawing groups such as cyano or methyl and the like are added, so that the molecular configuration is changed, a conjugated system is enlarged, and the electrochemical characteristics of a compound are adjusted; after the obtained organic compound is applied to the organic electroluminescent device, the starting voltage of the device is reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The invention discloses a polyolefin self-repairing material and a preparation method thereof, a main chain of the polyolefin self-repairing material contains structural units shown in a general formula (I) and a general formula (II), a side chain of the polyolefin self-repairing material contains a structural unit shown in a general formula (III), the main chain and the side chain are connected through a covalent bond, in the formulas, x and y are molar percentages of the structural units in the main chain, and in the formulas, x and y are the molar percentages of the structural units in the main chain. X and y are positive numbers satisfying x > 0, y > 0, x > y, and 80% < = x + y < = 100%; r is a halogen atom, and R1 and R2 are aliphatic methylene chains or aromatic groups with the carbon atom number of 1-10; and R3 is amino, hydroxyl or carboxyl. The polyolefin self-repairing material has both a physical effect and a chemical effect, the self-repairing time of the material can be shortened, and the self-repairing efficiency is improved. Meanwhile, dynamic chemical bonds endow the material with a cross-linked structure, and the mechanical property of the material can be improved.

The invention discloses a preparation method of a sulfonic acid type covalent organic framework material and a preparation method of 5-hydroxymethylfurfural. The material is prepared by carrying out covalent condensation reaction on a monomer containing a sulfonic acid group precursor and a connecting ligand of a skeleton through a hot solvent method, and the catalyst has the characteristics of high crystallinity, large specific surface area, ordered pore structure, high sulfonic acid group density and uniform distribution. The preparation method is simple, convenient, efficient, mild in condition and high in yield. Compared with a traditional lewis acid catalyst for preparing 5-hydroxymethylfurfural through fructose dehydration, the material has the advantages of being uniform and adjustable in porosity, higher in active site, capable of promoting fructose hydrolysis and the like, efficient conversion can be achieved, side reactions and product transition polymerization are inhibited, and better industrialization prospects are shown.

This nonspecific reaction inhibitor is a copolymer containing a first repeating unit represented by formula (1) and a second repeating unit represented by formula (2). In formula (1), R1, R2, and R3 are each independently a hydrogen atom or a methyl group, X is NH or an oxygen atom, Y is SO3 - or COO-, and Yn and m are each independently an integer from 1 to 5. In formula (2), R4 is a hydrogen atom or a methyl group, Z is NH or an oxygen atom, and A is a linear or branched alkyl group with 12 to 40 carbon atoms.

The invention discloses a nano-enzyme-SERS (Surface Enhanced Raman Scattering) bifunctional sensor for detecting colorectal cancer markers with high sensitivity as well as a preparation method and application of the nano-enzyme-SERS bifunctional sensor. The preparation method comprises the following steps: coating a layer of platinum (Pt) on the surface of gold nanoparticles (AuNPs) by utilizing a chemical reduction method so as to form gold-platinum nanoparticles (Au (at) Pt NPs); assembling the synthesized Au (at) Pt NPs into an aminated capillary tube through electrostatic adsorption, so as to prepare a capillary tube SERS (Surface Enhanced Raman Scattering) substrate; the surface of Au (at) Pt NPs is modified with a marker aptamer through an Au-S bond, and the nano enzyme-SERS dual-function sensor is prepared. In the presence of hydrogen peroxide (H2O2), the Au (at) Pt NPs can catalyze the oxidation of 3, 3 ', 5, 5'-tetramethyl benzidine (TMB) to generate oxidized TMB (oxTMB) with a strong SERS (Surface Enhanced Raman Scattering) signal. When Hcy exists, the reductive sulfydryl of Hcy consumes hydroxyl free radicals (. OH) generated by H2O2 decomposition, so that TMB oxidation is inhibited, and SERS signal intensity is weakened. A linear regression equation of the logarithm of the Hcy concentration and the signal intensity is drawn according to the SERS signal intensity, so that quantitative detection of the Hcy is realized.

The present disclosure relates to a perovskite system comprising a perovskite film including perovskites having a three-dimensional heterostructure of formula ABX3 characterized by a tetragonal perovskite surface. A comprises at least one of methylammonium, formamidinium, cesium, or guanidinium. B is Pb or Sn. X comprises at least one of I, Br, or Cl. The perovskite system further comprises an interfacial capping layer including anilinium-based surface-capping ligands, the ligands being distributed at the tetragonal perovskite surface of the perovskite film and non-reactive with the perovskites, as determined by time-of-flight secondary ion mass spectrometry. Also described are methods of preparing the perovskite system, and solar cells or modules comprising the perovskite system.

The invention relates to the technical field of photocatalysts, in particular to a bismuth-defect bismuth oxybromide-sulfur-defect bismuth sulfide bromide heterojunction and a preparation method and application thereof in photocatalytic CO2 reduction, Bi (NO3) 3.5 H2O, thiourea, cetyltrimethylammonium bromide (CTAB) and the like are used as raw materials, and the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction is prepared through a two-step hydrothermal method. According to the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction, bismuth vacancies and sulfur vacancies are introduced, the visible light absorption range of the material is expanded through a proper amount of double vacancies, more electron capture centers are provided, and the separation efficiency of photo-induced electrons and the vacancies is improved, so that the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction has excellent performance of photocatalytic reduction of CO2, and the preparation method of the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction is suitable for large-scale production and application of the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction. CO2 can be reduced into a single product CO, and the photoreduction efficiency of the carbon dioxide can be improved.

The invention discloses a polyacid-based metal viologen framework crystalline material as well as a preparation method and application thereof, and belongs to the technical field of heterogeneous catalytic materials. The crystalline material is synthesized in one step through a hydrothermal method, the molecular formula is Cu2 (H2O) 2 (L) 2 [PW12O40] [OH]. 2H2O, the crystalline material belongs to a monoclinic system, the space group is P21, the cell parameters are alpha = 90 degrees, beta = 114.208 (2) degrees and gamma = 90 degrees, and the structure of the crystalline material is determined through X-ray diffraction. According to the material, accurate compounding of polyacid clusters and metal viologen on the molecular level is achieved, an effective electron transmission channel is constructed, separation of photon-generated carriers is remarkably promoted, and excellent photocatalytic activity is shown. At the ambient temperature, the crystalline material can be used as a catalyst to efficiently degrade dye pollutants (such as methylene blue and rhodamine B) in a water body, the degradation rate within 60 minutes exceeds 90%, and the crystalline material has good cycle stability and structural durability.

An organometallic complex having an emission peak in a long wavelength region (a visible region having a wavelength of 700 nm or greater or a near-infrared region) is provided. The organometallic complex has a structure represented by General Formula (G1), in which a ligand having a quinoxaline skeleton is coordinated to a central metal, and an electron-withdrawing group (e.g., fluorine, a cyano group, a trifluoromethyl group, a trifluoromethylsulfonyl group, or a pentafluorosulfanyl group) is included as a substituent at at least one substitutable position of the benzene ring of the quinoxaline skeleton of the ligand.

The invention discloses a method for synthesizing a chlorfenapyr bisamide intermediate by a one-pot method, which comprises the following steps: by taking aniline as an initial raw material, reacting the aniline with 2-bromoheptafluoropropane under the action of a catalyst and an acid-binding agent to generate 4-heptafluoroisopropylaniline, distilling to recover excessive 2-bromoheptafluoropropane after the aniline is completely converted, and separating the 2-bromoheptafluoropropane from the 4-heptafluoroisopropylaniline to obtain the chlorfenapyr bisamide intermediate. Adding bromotrifluoromethane into the reaction liquid to react to obtain 2-trifluoromethyl-4-(heptafluoroisopropyl) aniline, then carrying out oxidation-reduction reaction on the dropped hydrogen peroxide and excessive sodium hydrosulfite, and after the sodium hydrosulfite is completely consumed, reacting to obtain 2-trifluoromethyl-4-(heptafluoroisopropyl) aniline; and carrying out benzene ring bromination reaction on dropwise added hydrogen peroxide, the brominating agent in the reaction liquid and the 2-trifluoromethyl-4-(heptafluoroisopropyl) aniline to obtain the 2-bromo-4-(heptafluoroisopropyl)-6-(trifluoromethyl) aniline, wherein the brominating agent in the reaction liquid and the 2-trifluoromethyl-4-(heptafluoroisopropyl)-6-(trifluoromethyl) aniline are subjected to benzene ring bromination reaction. The method is simple in process, high in yield, low in raw material cost and suitable for industrial production.

The invention relates to the field of acetylene purification and new materials, and particularly provides a double-interspersed MOF (Metal Organic Framework) and a preparation method and application thereof in acetylene purification, and the specific synthesis method comprises the following steps: reacting a tricarboxylic acid ligand 1, 3, 5-tris (4-carboxylphenyl) benzene (H3btb) with a nitrogen-containing methyl-containing ligand 3-methyl-1H-1, 2, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3-tetramethyl-1 The MOF (Zn-btb-fmtrz) with ultrahigh stability performance is synthesized from 2, 3, 4-triazole (fmtrz) and a zinc-containing compound, and the material can be used as an adsorbent, has strong acetylene adsorption action force, high selectivity and good stability, is suitable for industrial production, and shows a more excellent separation effect on low-concentration acetylene compared with a traditional method. The synthesized material is stable and has good acetylene adsorption capacity, and a new direction is provided for using MOF as an acetylene purification material.