559 results about "Chlorobenzene" patented technology

The invention belongs to the technical field of organic pollution treatment, and relates to a biochar-LDH-nZVI-GO composite material for organic pollution remediation and a preparation method and application thereof.The preparation method comprises the steps that graphene oxide is ultrasonically dispersed in deionized water, magnesium salt and aluminum salt are added to form uniform suspension liquid, then the uniform suspension liquid is mixed with biochar suspension liquid, and the biochar-nZVI-GO composite material is obtained; carrying out pH (Potential of Hydrogen) regulation and a hydrothermal crystallization reaction, so as to prepare a biochar-Mg / Al-LDH-GO compound; and dispersing the compound in an organic solvent, sequentially adding FeSO4. 7H2O and a NaBH4 solution in an inert atmosphere to carry out a reduction reaction, and finally washing and drying to obtain the biochar-LDH-nZVI-GO composite material. The material shows high-efficiency removal capacity on various organic pollutants such as trichloroethylene, chlorobenzene and polychlorinated biphenyl, is suitable for high-efficiency green remediation of organic pollutants in soil and water, and has good popularization and application prospects.

The invention provides a preparation method of a bexagliflozin intermediate, and relates to the technical field of organic synthesis. The preparation method provided by the invention comprises the following steps: S1, substitution reaction: under the action of alkali, carrying out substitution reaction on 2-(cyclopropoxy) ethanol and a compound III ((5-halogen-2-chlorphenyl) (4-halophenyl) ketone) to generate a compound II; s2, reduction reaction: under the action of lewis acid, carrying out reduction reaction on a reducing agent and a compound II ((5-halogen-2-chlorphenyl) (4-(2-(cyclopropoxy) ethyoxyl) phenyl) ketone) to generate a compound I; the method has the advantages of mild reaction conditions, high atom utilization rate, high yield, high product quality and the like.

The invention belongs to the technical field of sulfonamide synthesis, and particularly relates to a green and environment-friendly sulfonamide amidation preparation method. Comprising the following steps: adding chlorosulfonic acid into a reactor, stirring, heating, adding o-nitrochlorobenzene, carrying out staged heat preservation, cooling, and adding thionyl chloride to obtain 2-nitro-4-chlorine sulfonate-chlorobenzene; the method comprises the following steps: separating and filtering 2-nitro-4-chlorine sulfonate-chlorobenzene, adding ammonia water, stirring, preserving heat, and carrying out filter pressing to obtain 2-nitro-4-amine sulfonate-chlorobenzene; the preparation method comprises the following steps: adding liquid caustic soda into 2-nitro-4-amine sulfonate-chlorobenzene, stirring, heating, and adjusting the pH value to obtain 2-nitro-4-amine sulfonate-phenol; the method comprises the following steps: adding water, a catalyst and hydrazine hydrate into 2-nitro-4-amine sulfonate-phenol, heating, stirring, and carrying out filter pressing to obtain 4-sulfonamide-2-amino-phenol. According to the preparation method of sulfonamide, generated tail gas is subjected to falling film absorption treatment, and the product prepared by the preparation method is high in purity.

The invention relates to the field of material chemistry on-line detection, in particular to a 1, 2, 4-trichlorobenzene on-line detection material and a preparation method thereof, and provides a film-forming sensitive layer material capable of being coated on the surface of a transducer, and the film-forming sensitive layer material comprises chitosan, a crosslinking component with the content of 0.1-5wt% in terms of glutaraldehyde and magnetic core-shell molecularly imprinted particles after being dried, the magnetic core-shell molecularly imprinted particle contains a ferroferric oxide magnetic inner core, a silicon dioxide middle layer and a molecularly imprinted polymer shell layer, and the shell layer is a cyclodextrin methacrylate and ethylene glycol dimethacrylate copolymer network and takes 1, 2, 4-trichlorobenzene as a template. The material keeps the membrane integrity and long-term stability under the working conditions of circulation and regeneration and also gives consideration to quick response, and the residual 1, 2, 4-trichlorobenzene is controlled to be not greater than 0.10 wt% and the residual glutaraldehyde is controlled to be not greater than 0.5 wt%. The method is used for relieving structural mass transfer contradiction and processing and coating coupling contradiction caused by high filler load, and has online detection application value.

The present application relates to the field of cosmetic technology, in particular to a quick-drying and shaping spray and a preparation method thereof, in particular to a hair styling product which is quickly dried, permanently shaped and has hair care effect through the synergistic effect of specific film-forming agents and volatile systems, comprising the following components: ethanol 30-50%, aminomethyl propanol 0.1-1%, butanediol 1-5%, octyl acrylamide / acrylate / methyl acrylate copolymer 5-15%, PEG-12 dimethicone 0.5-2%, keratin 0.1-2%, hydrolyzed keratin 0.1-2%, oxidized keratin 0.1-2%, aloe barbadensis leaf extract 0.5-3%, selaginella kurata extract 0.5-3%, radix falatoniae extract 0.5-3%, radix salviae miltiorrhizae extract 0.5-3%, water 20-40%, essence 0.1-2%, cetrimonium chloride 0.1-1%, phenoxyethanol 0.5-1.5%, propylene glycol 1-5%, p-hydroxyacetophenone 0.5-1.5%, chlorphenesin 0.1-0.5%, ethylhexylglycerin 0.5-1.5%.

To provide an ophthalmic product in which an ophthalmic composition is filled in a container in which a pressing deformation part is formed by using an elastic material, and although the ophthalmic composition contains chlorpheniramine, diphenhydramine or a salt thereof, adsorption of these components is suppressed.SOLUTION: An ophthalmic product comprising an ophthalmic composition and a container filled with the ophthalmic composition, wherein the container comprises a container body having a discharge port and a press-deforming part, and a cap, and the press-deforming part is formed using an elastic material, (A) one or more selected from the group consisting of chlorpheniramine, diphenhydramine, and pharmaceutically acceptable salts thereof, and (B) one or more selected from the group consisting of an amino acid and a salt thereof, glycyrrhizic acid and a salt thereof, a mucopolysaccharide and a salt thereof, trometamol and a salt thereof, ethylenediaminetetraacetic acid and a salt thereof, and a vitamin and a derivative thereof.SELECTED DRAWING: Figure 1

The invention discloses a method for preparing a perovskite solar cell based on a fused salt doped Spiro-OMeTAD hole transport layer, and the method comprises the steps: dissolving lead iodide and formamidine iodide in a mixed solvent of N, N-dimethylformamide and dimethyl sulfoxide according to a molar ratio of (0.8-1.5): 1 to prepare an FAPbI3 perovskite precursor solution; the method comprises the following steps: mixing cyclohexylamine trifluoroacetic acid and 4-tert-butylpyridine according to a molar ratio of 1: (8-14), dissolving the mixture in a 70-110 mg / mL Spiro-OMeTAD chlorobenzene solution, adding an acetonitrile solution of LiTFSi, and stirring at normal temperature to obtain a hole transport material Spiro-OMeTAD solution; spin-coating the FTO substrate with an electron transport layer material, spin-coating the electron transport layer with the FAPbI3 perovskite precursor solution, and annealing to form a perovskite thin film; the method comprises the following steps: spin-coating an ammonium butyrate iodide solution on a perovskite thin film to obtain an interface modification layer, spin-coating a hole transport material Spiro-OMeTAD solution on the interface modification layer to obtain a cyclohexylamine trifluoroacetic acid doped Spiro-OMeTAD hole transport layer, and evaporating an interface modification layer and a metal electrode on the Spiro-OMeTAD hole transport layer.

Provided are novel formulations of 2-{[3,5-bis(trifluoromethyl)phenyl]carbamoyl}-4-chlorophenyl dihydrogen phosphate as described below and uses thereof.

The application relates to a quality inspection technology of inorganic salt, and discloses a detection reagent and a rapid detection method for high-purity lithium carbonate. A water-soluble fluorescent probe detection reagent is obtained by using 2-(4-chlorophenyl) benzoxazole, 2-(2-hydroxyphenyl) benzoxazole and other benzoxazole compounds as a substrate, and by modifying the substrate with glycerol, tris(hydroxyl) aminomethane and other compounds; high-purity lithium carbonate is detected by using the detection reagent; the high-purity lithium carbonate is solid-phase prepared into lithium carbonate suspension liquid; the upper liquid phase of the lithium carbonate suspension liquid is taken; the fluorescent probe detection reagent is added into the upper liquid phase; and the high-purity lithium carbonate is rapidly detected according to the fluorescent spectrum and a working curve. The application can realize the rapid detection of the high-purity lithium carbonate in a water-soluble environment, and the detection response time can be as short as 3-10 seconds.

The present disclosure relates to a crystalline form of trans-4-[1-(3-Chloro-phenyl)-7-methoxy-2,4-dioxo-3,4-dihydro-2H-pyrimido[5,4-c]quinolin-3-yl]-cyclohexanecarboxylic acid hydrochloride, methods of preparation, and its use as a therapeutic agent to treat inflammatory diseases.

The invention relates to the technical field of pesticide preparations, in particular to ultra-low volume liquid containing sodium p-chlorophenoxyacetate as well as a preparation method and application of the ultra-low volume liquid. The invention discloses a water-soluble detergent which comprises the following components in percentage by mass: 0.01-1% of sodium p-chlorophenoxyacetate, 3-5% of plant small molecule signal peptide, 1-5% of organic silicon, 3-10% of nano silicon dioxide, 30-50% of ethylene glycol, 10-20% of nutrient elements and the balance of water, wherein the total percentage is 100%. The organic silicon component comprises at least one polyether modified polysiloxane and at least one polyether compound. The ultra-low volume preparation containing sodium p-chlorophenoxyacetate is good in stability and high in evaporation and deposition resistance, can improve the absorption and utilization rate of plant surfaces, can promote yield increase when being applied to crops, and is higher in efficiency and better in yield increase effect compared with a conventional soluble concentrate.

The invention discloses high-temperature-resistant high-purity low-chlorine epoxy resin and a preparation method thereof. On one hand, the high-purity low-chlorine epoxy resin resistant to high temperature is provided, the high-purity low-chlorine epoxy resin is prepared by curing an epoxy resin base material through a composite curing agent, and the epoxy resin base material is prepared from, by mass, 100 parts of low-chlorophenyl multifunctional epoxy resin and 12-20 parts of epoxy silicon resin; the composite curing agent comprises the following raw material components in parts by mass: 100 parts of a DDS curing agent, 30-40 parts of a bio-based phenolic aldehyde amine curing agent and 6-12 parts of boron modified phenolic resin. On the other hand, the invention provides a preparation method of the high-temperature-resistant high-purity low-chlorine epoxy resin. The epoxy resin material disclosed by the invention has relatively high glass transition temperature, relatively excellent high-temperature resistance and high-temperature aging resistance, low moisture absorption rate and excellent electrical insulation performance.

The invention discloses a 96-hole preassembled plate fat-soluble vitamin pretreatment kit, and belongs to the technical field of in-vitro diagnostic reagents. Comprising magnetic bead suspension liquid, equilibrium liquid, leacheate 1, leacheate 2 and eluent which are carried on a preassembled plate, and the magnetic bead suspension liquid comprises absolute ethyl alcohol and magnetic beads; the preparation process of the magnetic beads comprises the following steps: activating carboxyl of the carboxyl magnetic beads through EDC and NHS; then nitrochlorobenzene and triethylamine are added for a coupling reaction; mixing the coupling reaction product with pyrrolidone, ammonium persulfate and a pore-foaming agent to obtain target magnetic beads; the magnetic beads can be specifically combined with fat-soluble vitamins in human serum or plasma, efficient separation and release of an object to be detected are achieved through a magnetic separation technology, and the magnetic beads are suitable for follow-up mass spectrum quantitative analysis. The kit disclosed by the invention has the characteristics of simplicity and convenience in operation, high extraction efficiency and good stability, the pretreatment time can be remarkably shortened, the detection accuracy is improved, and an efficient solution is provided for clinical detection of fat-soluble vitamins.

The invention discloses a chlorphenesin coupling crystallization-adsorption purification method based on a deep eutectic solvent, and belongs to the technical field of chemical purification. According to the technical scheme, the method comprises the following steps: S1, mixing crude chlorphenesin with supercritical CO2, and extracting to obtain pretreated chlorphenesin; s2, dissolving the pretreated chlorphenesin in a choline chloride-glycerol DES system, adding an adsorbent after sufficient dissolution, cooling, and separating out chlorphenesin. The technical problems that an organic solvent is used in an existing chlorphenesin purification method, and the solvent is inflammable, toxic, large in dosage, long in purification time and high in energy consumption are solved, and the chlorphenesin coupling crystallization-adsorption purification method based on the eutectic solvent is safe, environmentally friendly, capable of improving production efficiency and high in product purity and yield.

This invention discloses an analytical method for benzothiazole contaminants, comprising the following steps: detection by high performance liquid chromatography (HPLC), with the following chromatographic conditions: a phenylhexyl column as the stationary phase, mobile phase A being water, mobile phase B being acetonitrile, and gradient elution; wherein the benzothiazole contaminants are at least one of 2-aminobenzothiazole, 2-hydroxybenzothiazole, benzothiazole, 2-methylbenzothiazole, 2-mercaptobenzothiazole, 2,5-dimethylbenzothiazole, 2-cyanobenzothiazole, ethyl 2-carboxylate benzothiazole, 2-chlorobenzothiazole, 2-bromobenzothiazole, 2-methylthiobenzothiazole, phenylthiocyanate, N-tert-butyl-2-benzothiazole sulfenamide, 2-(2-hydroxyphenyl)-benzothiazole, N-cyclohexyl-2-benzothiazole sulfinamide, dibenzothiazole disulfide, and N,N-dicyclohexyl-2-benzothiazole sulfonamide.

This invention discloses a method for synthesizing a venetum intermediate, specifically as follows: Step 1: In an organic solvent, 2,4-difluorobenzoic acid and 5-hydroxy-7-azaindole undergo an etherification reaction under the action of an acid-binding agent. After the reaction, post-treatment yields 2-((1h-pyrrolo[2,3-b]pyridin-5-yl)oxy)-4-fluorobenzoic acid; Step 2: 2-((1h-pyrrolo[2,3-b]pyridin-5-yl)oxy)-4-fluorobenzoic acid reacts with 1-((2-(4-chlorophenyl)-4,4-dimethylcyclohexene-1-)methyl)piperazine in… An amination reaction occurs under the action of a base. After the reaction, post-treatment yields 2-(7-azaindole-5-oxy)-4-(4-((2-(4-chlorophenyl)-4,4-dimethylcyclohexene-1-)methyl)piperazine-1-)benzoic acid, i.e., Venetantora intermediate III. The synthetic process provided by this invention avoids Grignard reactions and subsequent hydrolysis reactions, shortens the operation steps, simplifies the synthetic process, and provides a simple and easy-to-operate synthetic process. The raw materials are inexpensive and readily available, while avoiding the use of highly toxic raw materials. The production process is green and environmentally friendly, and suitable for industrial production.

The invention discloses a sulfur-resistant and water-resistant catalyst for efficiently removing CVOCs as well as a preparation method and application of the sulfur-resistant and water-resistant catalyst, and belongs to the field of air pollution purification. The preparation method of the sulfur-resistant and water-resistant catalyst for efficiently removing the CVOCs comprises the following steps: S1, carrying out high-temperature roasting on a molecular sieve, and cooling; s2, a precious metal precursor and a transition metal precursor are weighed according to the proportion, and a mixed aqueous solution is prepared; and S3, mixing the molecular sieve treated in the step S1 with the mixed aqueous solution, exchanging, washing, carrying out suction filtration, and drying and roasting a solid to obtain the sulfur-resistant and water-resistant catalyst for efficiently removing the CVOCs. The catalyst prepared by the invention has excellent water resistance and SO2 poisoning resistance, has efficient low-temperature catalytic activity, and can be used for efficient catalytic conversion of chlorobenzene.

The present disclosure relates to a crystalline form of trans-4-[1-(3-Chloro-phenyl)-7-methoxy-2,4-dioxo-3,4-dihydro-2H-pyrimido[5,4-c]quinolin-3-yl]-cyclohexanecarboxylic acid hydrochloride, methods of preparation, and its use as a therapeutic agent to treat inflammatory diseases.

The present application relates to the technical field of pharmaceutical chemistry, and particularly relates to a preparation method of fenofibrate and impurities thereof. The present application carries out Friedel-Crafts acylation reaction on 4-chlorobenzoyl chloride, anisole, Lewis acid and benzene solvent, then carries out demethylation reaction, and then separates and purifies to obtain compound II, impurity compound IV and impurity compound V; the compound II (or impurity compound IV), 2-bromoisobutyric acid isopropyl ester, an alkaline reagent and an alcohol solvent are mixed to carry out etherification reaction, and then separated and purified to obtain fenofibrate (or impurity compound VI). The preparation method provided by the present application has high yield and high purity of fenofibrate, can realize identification of impurities in the preparation process of fenofibrate, and provides a convenient condition for quality control of bulk drug. Moreover, the raw materials and solvents used are widely sourced, low in cost and small in danger, the preparation method is high in safety factor, simple in operation, and suitable for large-scale industrial production.

The invention discloses a preparation method and a post-treatment preservation method of triphenyl boron (TPB), and the preparation method comprises the following steps: taking raw materials of triisopropyl borate (TiPB), metal sodium, chlorobenzene, isopropanol and benzene, adding the raw materials into a solvent toluene, and carrying out a reaction to obtain a reaction solution; and extracting the reaction solution with deionized water to obtain a triphenylboron-sodium hydroxide aqueous solution, carrying out post-treatment acid regulation and drying to obtain a triphenylboron (TPB) solid, and finally storing the triphenylboron solid in an organic solution such as toluene and the like. Under the preferable condition, the yield reaches 89.8%. The synthesis method disclosed by the invention is simple, and the prepared TPB is used as a Lewis acid and is widely used as a ligand and a (assistant) catalyst.

The invention relates to a preparation method of suvorexant, which comprises the following steps: (1) dissolving a compound VIII (R)-4-(5-chlorobenzo [d] oxazole-2-yl)-7-methyl-1, 4-diazacycloheptane-1-carboxylic acid tert-butyl ester in a reaction solvent, adding an acidic reagent at the temperature of 5-15 DEG C, and reacting at the temperature of 25-35 DEG C to prepare a compound IX (R)-5-chloro-2-(5-methyl-1, 4-diazacycloheptane-1-carboxylic acid tert-butyl ester; 2, 4-diazacycloheptane-1-yl) benzo [d] oxazole is used as a raw material; and (2) in an alkaline environment and an aprotic solvent, carrying out acylation nucleophilic reaction on the compound IX and 5-methyl-2-(2H-1, 2, 3-triazole-2-yl) benzoic acid to obtain the suvorexant. According to the preparation method, the obtained product is high in yield, the purity reaches 99.9% or above, and the intermediate product is good in character, few in impurity and suitable for industrial production.

The invention provides a photocatalytic method for degrading polystyrene into benzoic acid, which comprises the following steps: dissolving polystyrene in a mixed solvent containing acetonitrile and chlorobenzene, adding a catalyst FPQL-OMe and iron trifluoromethanesulfonate, and reacting under the conditions of oxygen atmosphere and illumination to generate benzoic acid, wherein the FPQL-OMe and the iron trifluoromethanesulfonate are synergistically used as a photocatalyst. The invention provides a method for photocatalytic degradation of polystyrene, which is mild in condition, rapid, efficient and high in selectivity, and particularly provides a photocatalytic method for degrading and converting polystyrene into benzoic acid at a relatively high yield.

The present application relates to the technical field of detection, and particularly relates to a method for measuring intrinsic viscosity of rubber by using chlorobenzene solution, comprising the following steps: obtaining initial mass of insoluble polymer sample; filtering solution of the sample to obtain mass of insoluble substance intercepted by filter medium; cleaning container of the sample of the solution and collecting cleaning liquid to obtain mass of container residue; determining real sol mass based on the mass of the residue, the mass of the insoluble substance and the mass of the container residue; and determining concentration of the solution based on the real sol mass and volume of the solution. The present application effectively solves the technical problem of large error in measuring intrinsic viscosity by using tetrahydrofuran solvent, and simultaneously provides an alternative scheme for evaluating quality of natural rubber.

This invention discloses a modified adsorbent and a noble metal-supported modified adsorbent, their preparation methods, and applications, belonging to the technical field of chemical catalyst synthesis and application. The modified adsorbent is a hydrogen-form zeolite molecular sieve HZSM-5 or 2XHZSM-5 with improved pore structure obtained by treating HZSM-5 with 2% NaBH4. The noble metal-supported modified adsorbent uses HZSM-5 as a carrier. The noble metal-supported modified adsorbent uses HZSM-5 as a carrier, and the modified adsorbent is prepared by reducing the supported Ru with NaBH4. 3+ On the support surface, Ru accounts for 1% of the mass fraction of the support HZSM-5, and NaBH4 accounts for 2% of the mass of the noble metal-supported modified adsorbent. Both the modified adsorbent and the noble metal-supported modified adsorbent are used for the adsorption of chlorobenzene. Both are low-cost and highly efficient, significantly improving the adsorption capacity of commercial molecular sieves.

The invention belongs to the technical field of pesticide chemistry, and particularly relates to an application of a substituted phenylhydrazine copper salt complex as an agricultural fungicide, the structural general formula of the substituted phenylhydrazine copper salt complex is [Cu (ArNHNH2) 2] Xn, Ar is selected from 3-chlorphenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, 2, 4-dichlorophenyl-, the compound is prepared from 2, 6-dichlorophenyl, p-trichloromethoxyphenyl, 4-trifluoromethylphenyl, 4-trifluoromethoxyphenyl, 4-bromophenyl, 4-nitrophenyl, 4-cyanophenyl and 4-carboxyphenyl, and the compound is prepared from 2, 6-dichlorophenyl, p-trichloromethoxyphenyl, 4-trifluoromethylphenyl, 4-trifluoromethoxyphenyl, 4-bromophenyl, 4-nitrophenyl, 4-cyanophenyl and 4-carboxyphenyl. X is selected from SO4 <->, Cl <-> and NO3 <->; n is equal to 1-2. The substituted phenylhydrazine copper salt complex disclosed by the invention has remarkable inhibitory activity on plant pathogenic bacteria, has very high inhibition rate on three plant pathogenic fungi, namely fusarium graminearum, rhizoctonia solani and sclerotium rolfsii, can be used as a safe and efficient novel bactericide, and is applied to prevention and treatment of various crop diseases.

The application discloses a conjugated polymer of chlorobenzene, o-dichlorobenzene or m-dichlorobenzene and EDOT as well as a preparation method and application thereof, and belongs to the field of polymer electrochromic materials. By introducing chlorine atoms as intermediates in different active sites of benzene and EDOT as a strong electron-donating group, the obtained conjugated polymer has the characteristics of a wider redox peak, good optical contrast, fast response time, high coloring efficiency, good stability and the like.

The application provides a preparation method of a dihydroquinazoline compound and belongs to the technical field of organic synthesis. 1 comprises hydrogen, methyl, tert-butyl, methoxy or halogen; R 2 comprises phenyl; R 3 comprises phenyl; R 4 comprises phenyl, p-tolyl, p-methoxyphenyl, o-tolyl, p-fluorophenyl, p-chlorophenyl, naphthyl, pyridyl or thienyl; Ar comprises phenyl, naphthyl or pyridyl; R 5 comprises phenyl, cyclopropyl, cyclohexyl or [1,1'-biphenyl]-4-yl. The preparation method provided by the application has the advantages of short reaction route, no need to add a transition metal catalyst, good functional group compatibility, high yield, high production efficiency and green environmental protection.

The invention relates to a dapagliflozin impurity and a preparation method thereof, 5-bromo-2-chlorobenzoic acid (IV) is used as a raw material, (5-bromo-2-chlorphenyl) (4-ethyoxyl phenyl) ketone (III) is prepared through chlorination and Friedel-Crafts acylation, (5-bromo-2-chlorphenyl) (4-ethyoxyl phenyl) methanol (II) is obtained through reduction, and the benzhydryl ether impurity (I) is obtained through condensation under the catalysis of iodine. The preparation method has the advantages of simple operation, low cost, easily available raw materials and good product purity.

The invention discloses amido-modified hypercrosslinked resin, a preparation method thereof and application of the amido-modified hypercrosslinked resin to adsorption of chlorine-containing VOCs (Volatile Organic Compounds). The preparation method comprises the following steps: chloromethylation: swelling hypercrosslinked NDA-88 resin in 1, 2-dichloroethane, adding anhydrous FeCl3 as a catalyst, and carrying out chloromethylation reaction at 35-40 DEG C to obtain chloromethylated resin; and amination: mixing the chloromethylated resin with an amination reagent diethylenetriamine, carrying out amination reaction at 140-150 DEG C, and carrying out post-treatment to obtain the amino modified hypercrosslinked resin. The amino-modified hypercrosslinked resin has high adsorption capacity and long penetration time for chlorine-containing VOCs (Volatile Organic Compounds) such as dichloromethane, chlorobenzene and the like, is stable in performance under the relative humidity of 50%, and is small in adsorption performance attenuation after multiple times of thermal regeneration. The resin is simple in preparation method, excellent in performance and suitable for efficient purification treatment of industrial chlorine-containing VOCs waste gas.

The invention discloses a synthesis method of 1-(4-chlorphenyl) pyrazolidine-3-ketone, which comprises the following steps: by taking p-chlorophenylhydrazine hydrochloride and acrylamide as raw materials and toluene as a solvent, carrying out azeotropic dehydration under the normal pressure condition, cooling, adding flaky sodium hydroxide or potassium hydroxide, adding acrylamide, carrying out condensation reaction at 40-80 DEG C, filtering, washing and drying to obtain the 1-(4-chlorphenyl) pyrazolidine-3-ketone. And after the reaction is finished, acidifying, desolventizing, crystallizing and filtering to obtain the high-purity 1-(4-chlorphenyl) pyrazolidine-3-ketone. Compared with the prior art, the method provided by the invention has the following advantages: firstly, the inorganic base is adopted to replace the traditional sodium alkoxide organic base, so that the problems of flammability, danger and the like are avoided, and the reaction safety is greatly improved; process conditions are mild, operation steps are simplified, and repeated heating and cooling or negative pressure maintaining are not needed; and thirdly, the process is more environment-friendly, the molecular utilization rate is higher, by-products of alcohols are not generated compared with the traditional process, and the burden of sewage treatment is reduced. Sodium alkoxide is replaced by inorganic base, production cost is saved, and economic benefits are good.