1229 results about "Sulfonyl" patented technology

The invention discloses a fine circuit pattern anti-diffusion agent as well as a preparation method and a use method thereof, and relates to the technical field of printed circuit board manufacturing. The fine circuit pattern anti-diffusion agent is prepared from the following components in percentage by mass: 0.05 to 0.3 percent of an oleophobic agent, 0.1 to 0.6 percent of a bonding agent, 0.2 to 1.5 percent of an adhesion promoter, 0.5 to 4.0 percent of a wetting agent, 0.5 to 5.0 percent of a cosolvent and the balance of water, the oleophobic agent is a fluorophenylethylamine derivative, the bonding agent is a carbonyl chloride derivative, the adhesion promoter is a sulfur heterocyclic alkane derivative, the wetting agent is a methylsiloxane silane derivative, and the cosolvent is a sulfonyl ketone derivative. According to the fine circuit pattern anti-diffusion agent, an organic layer can be formed on the copper surface of a circuit board, the binding force between the copper surface and printing ink is enhanced, jet printing printing ink is prevented from diffusing on the copper surface, and the product percent of pass of a jet printing solder mask process is improved.

Systems, devices, and methods described herein relate to electrolyte formulations and the incorporation thereof into batteries. In some aspects, an electrolyte composition can comprise between about 10 wt % and about 42 wt % of an electrolyte solvent, between about 13 wt % and about 59 wt % of a fluoroether. In some embodiments, the electrolyte solvent can make up between about 26 wt % and about 39 wt % of the composition. In some embodiments, the fluoroether can make up between about 18 wt % and about 36 wt % of the composition. In some embodiments, the composition can include between about 0.5 wt % and about 1.5 wt % of a first additive. In some embodiments, the composition can include between about 0.5 wt % and about 5 wt % of a second additive.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, the positive pole piece comprises a positive active material layer, and the positive active material layer comprises lithium-containing phosphate of an olivine structure; the electrolyte comprises, by mass, 8-30% of a carboxylic ester solvent, a lithium salt and an unsaturated ester additive, the lithium salt comprises lithium hexafluorophosphate and fluorine-containing lithium sulfimide, the mass content of the fluorine-containing lithium sulfimide in the lithium salt is 18-45%, the mass content of the unsaturated ester additive in the electrolyte is 0.05-5%, and the mass content of the unsaturated ester additive in the electrolyte is 0.05-5%. The unsaturated ester additive comprises one or more of vinylene carbonate, vinylethylene carbonate, allyl ethyl carbonate and a fluoro-carbonate additive; the amount of electrolyte in the battery cell is 2.8 g / Ah to 3.2 g / Ah. According to the invention, rapid charging and use reliability of the single battery can be considered.

The invention belongs to the field of preparation of medical intermediates, and particularly relates to a preparation method of an On-DNA sulfinic acid structure compound. The method for preparing the On-DNA sulfinic acid structure compound comprises a step of oxidizing On-DNA thiol (phenol) into the On-DNA sulfinic acid structure compound under alkaline and heating or illumination conditions, a solvent used in the reaction step is a mixed solution of water, dimethyl sulfoxide, N, N-dimethylformamide, acetonitrile, ethanol or tetrahydrofuran, the reaction temperature is not more than 80 DEG C, and the reaction time is not more than 2 hours. And the illumination wavelength ranges from 365 nanometers to 535 nanometers. The On-DNA sulfinic acid structure compound obtained in the invention can be directly used for constructing a structure compound with a sulfonyl group, the reaction condition is mild and convenient, a new method and a new idea are provided for construction of a DNA coding compound library, and the On-DNA sulfinic acid structure compound has a very good application prospect in lead drug development.

To provide a polyhydroxyamide compound with which it is possible to obtain a new negative photosensitive resin composition that does not include a resin component which may be targeted by PFAS regulations.SOLUTION: Provided is a polyhydroxyamide compound including: a structural unit represented by formula (1); and a structural unit wherein a fluorene group in the structure of (1) is replaced with a sulfonyl group.SELECTED DRAWING: None

The invention relates to the technical field of battery electrodes, in particular to a zinc pole piece coated with a sulfonic COF membrane, a preparation method of the zinc pole piece and an aqueous zinc battery, and the preparation method comprises the following steps: dissolving 2, 4, 6-triformyl phloroglucinol and p-phenylenediamine-2, 5-disulfonic acid in an organic solvent to obtain a mixed solution; and putting the zinc foil into the mixed solution, carrying out sealed standing at normal temperature, taking out the zinc foil coated with the sulfonic group COF film, and washing and drying the zinc foil to obtain the zinc pole piece coated with the sulfonic group COF film. The prepared zinc pole piece coated with the sulfonic COF film has good corrosion resistance and dendritic crystal inhibition capacity, and when the zinc pole piece is used as a negative electrode of a water-based zinc battery, the cycle performance of the water-based zinc battery can be improved, and the cycle life of the water-based zinc battery can be prolonged; the problems that a zinc negative electrode of an existing water-based zinc battery is prone to generating dendritic crystal and corrosion passivation side reactions in the battery circulation process, so that the use performance of the water-based zinc battery is reduced, and the service life is greatly shortened are solved.

The invention relates to an in-situ curing gel structure electrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing a resin matrix with a pore-forming agent, then adding a curing agent for mixing to obtain a mixed solution, and pouring the mixed solution into a closed mold for curing to obtain a resin film; soaking and drying the resin film to obtain porous resin; and (2) mixing 4-styrene sulfonyl (phenylsulfonyl) imide lithium salt, polyethylene glycol methyl ether acrylate, polyethylene glycol dimethacrylate, ethylene carbonate and azodiisobutyronitrile to prepare a mixed solution, and soaking the porous resin in the mixed solution to react and cure, thereby obtaining the in-situ curing gel structure electrolyte. The preparation method is simple, and the prepared in-situ curing gel structure electrolyte can improve the mechanical property, the battery capacity and the cycle performance of the in-situ curing gel structure electrolyte.

The invention discloses a preparation method for effectively reducing defects of a perovskite solar cell body. A 4-fluorobenzenesulfonamide additive is introduced into a perovskite precursor solution, a sulfonyl group, a fluorine group and the like are coordinated with lead in perovskite, the crystallization process of the film is regulated and controlled, nucleation and crystal growth of an organic lead halide perovskite light absorption layer are effectively controlled, meanwhile, non-radiative recombination is inhibited, charge transfer is promoted, and the photoelectric conversion efficiency is improved. The photoelectric conversion efficiency is obviously improved, the cost is reduced and the repeatability is good. The additive is introduced by a solution method, the process is simple and the cost is low. Experimental results show that after the 4-fluorobenzenesulfonamide additive is used, the trap state density of a perovskite layer is reduced from 4.45 * 10 < 15 > cm <-3 > to 3.26 * 10 < 15 > cm <-3 >, and the photoelectric conversion efficiency of a perovskite cell is improved from 22.20% to 24.15%. The invention provides an efficient and low-cost solution for defect passivation of the perovskite solar cell.

The invention relates to alkali-soluble light-cured resin and a preparation method thereof, a light-cured resin composition, a photosensitive dry film and a semiconductor device. The structural formula of the alkali-soluble light-cured resin is shown as a formula (I) or a formula (II), wherein in the formula (I), R1 is selected from one of a single bond, an oxygen atom, a sulfonyl group and an organic group with 1-30 carbon atoms; in the formula (I) and the formula (II), n is a natural number greater than or equal to 0; r2 is selected from organic groups with 1-50 carbon atoms; r3 is selected from an aromatic organic group or an aliphatic organic group; r4 is selected from organic groups containing unsaturated carbon-carbon double bonds; and R5 is selected from carboxyl-containing organic groups. A molecular chain of the alkali-soluble light-cured resin contains a photosensitive group, an imide structure and an alkali-soluble group, on one hand, the thermal mechanical property of the alkali-soluble light-cured resin can be enhanced, and on the other hand, the alkali-soluble light-cured resin can form a uniform and stable resin glue solution in a solvent, so that the comprehensive performance of the alkali-soluble light-cured resin is improved.

Described herein are lithium-metal rechargeable electrochemical cells comprising a lithium-metal negative electrode, a positive electrode, and a liquid electrolyte. The liquid electrolyte comprises a core mixture and a diluent. The diluent comprises a fluorinated ether. The core mixture comprises a set of salts and a set of solvents. The set of solvents comprises a pyrrolidinium-containing ionic liquid and a molecular solvent. The molecular solvent is a non-fluorinated ether, for example including but not limited to 1,2-dimethoxyethane. In some examples, the electrolyte further comprises an electrolyte additive, for example including but not limited to tris(trimethylsilyl)phosphate. In some examples, the set of salts comprises one or more imide-containing lithium salts. In some examples, the set of salts comprises lithium bis(fluorosulfonyl)imide and an additional salt and the mole fraction of lithium bis(fluorosulfonyl)imide in the set of salts is 0.5 or greater.

The present disclosure relates to pharmaceutically acceptable salts, cocrystals, and crystalline forms thereof, of a compound which is N—((S)-1-(3-(4-chloro-3-(methylsulfonamido)-1-(2,2,2-trifluoroethyl)-1H-indazol-7-yl)-6-(3-methyl-3-(methylsulfonyl)but-1-yn-1-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)-2- ((3bS,4aR)-5,5-difluoro-3-(trifluoromethyl)-3b,4,4a,5-tetrahydro-TH-cyclopropa[3,4]cyclopenta[1,2-c]pyrazol-1-yl)acetamide, which is useful in the treatment of a Retroviridae viral infection including an infection caused by the HIV virus.

The invention discloses a perovskite precursor solution containing substituted aromatic ring group sulfonic acid, which comprises a perovskite material, an additive and an organic solvent, the additive is aromatic ring group sulfonic acid with a substituent group or a salt thereof, the aromatic ring is a benzene ring, a naphthalene ring or a pyrene ring, and the substituent group is one or more of H, halogen, C1-C4 alkenyl and C1-C4 alkyl. Polycyclic aromatic hydrocarbon (such as benzene, naphthalene and pyrene) is used as a framework, one sulfonic acid group instead of a sulfonyl group is introduced, and uncoordinated type defect passivation is realized through bonding with Pb < 2 + >; meanwhile, the electron push-pull characteristic of the substituent group is utilized, the Lewis acid-base amphoteric property is exerted, passivation of various types of defects is achieved, anchoring and passivation of multiple sites are achieved, the defects of the perovskite active layer can be remarkably reduced, non-radiative recombination can be reduced, and the performance and stability of the prepared perovskite solar cell in the large-scale preparation process are further improved.

The purpose of the present invention to provide: a novel phosphorus compound; a method for synthesizing the compound; a flame retardant containing the compound; and a resin composition containing the compound and a resin component. The purpose of the present invention is to additionally provide: a prepreg using the resin composition; a resin-equipped metal foil; a thermosetting resin film; a metal-clad laminated board; a printed wiring board; and an adhesive. The present invention relates to a phosphorus compound represented by chemical formula (I), a synthesis method, and a use thereof. (In the formula, the R1's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; R2 represents a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group, and when there are a plurality of R2's, the R2's may be the same or different; Y1 represents a phenylene group optionally substituted with a C1 to C10 alkyl group, a naphthylene group, or a group indicated by formula (A); and the n's are the same or different and represent an integer of 0-3.) (In the formula, the R3's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; and Y2 represents a single bond, a C1 to C15 alkylene group optionally substituted with a phenyl group, a C5 to C15 cycloalkylene group, a C5 to C15 cycloalkylidene group optionally substituted with a C1 to c10 alkyl group, a phenylene group, an adamantane-1,3-ylene group, an adamantane-2-ylidene group, an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, or a fluorene-9-ylidene group.)

The invention discloses a sulfanilamide thiazolyl resorcinol derivative and application of the sulfanilamide thiazolyl resorcinol derivative in preparation of a tyrosinase inhibitor and whitening cosmetics. The structural formula of the derivative is # imgabs0 #, in the formula, R represents a fat (aromatic) group substituent, and R'represents a hydrogen atom or methyl; the preparation method comprises the following steps: taking 2-chloro-1-(2, 4-dimethoxyphenyl) ethanone as an initial raw material, carrying out cyclization condensation on the 2-chloro-1-(2, 4-dimethoxyphenyl) ethanone and thiourea to obtain 4-(2-amino-1, 3-thiazole-4-yl) benzene-1, 3-dimethanol, carrying out reaction on 2-amino of thiazole and different fat (aromatic) sulfonyl chloride, and then removing methyl to prepare the 4-(2-amino-1, 3-thiazole-4-yl) benzene-1, 3-dimethanol. Pharmacological activity tests show that the compound has good inhibitory activity on tyrosinase, which indicates that the sulfanilamide thiazolyl resorcinol derivative can be researched and utilized as a novel tyrosinase inhibitor and whitening cosmetics.

The invention discloses a preparation method and application of a sulfonylurea structure thermosensitive color developing agent, and relates to the technical field of color developing agents. The core of the thermosensitive color developing agent is a # imgabs0 # compound in a formula 1 containing a sulfonylurea structure. The preparation method comprises the following three steps: synthesizing an intermediate 1 through esterification of raw materials, obtaining an intermediate 2 through boric acidification, and synthesizing a target compound through Suzuki reaction. Through the synergistic effect of sulfonyl and ureido, hydrogen bond network regulation and electron transfer efficiency optimization are realized, and the technical bottlenecks of high-temperature activation requirements and insufficient color development stability of a traditional thermosensitive color developing agent are solved.

The invention belongs to the technical field of medicinal chemistry, and particularly relates to a 3-sulfamoyl benzamide compound as well as a preparation method and application thereof. The 3-sulfamoyl benzamide compound has a structure as shown in a formula I. In the formula I, X is chlorine or trifluoromethyl; r1 and R2 are independently C1-4 alkyl or R1, R2 and N atoms connected with R1 and R2 jointly form a heterocyclic group, and the heterocyclic group is a substituted or unsubstituted five-membered or six-membered heterocyclic group; and when the heterocyclic group is a substituted heterocyclic group, the substituent group in the substituted heterocyclic group is one or more of C1-4 alkyl, phenyl and acetyl. The 3-sulfamoyl benzamide compound disclosed by the invention has a remarkable proliferation inhibition effect on HCT116 colon cancer cells, HeLa human cervical cancer cells, MDA-MB-231 human breast cancer cells and A375 human malignant melanoma cells.

The invention discloses sulfo group modified silicon-based hybridized super-hydrophilic anti-fog resin as well as a preparation method and application of the sulfo group modified silicon-based hybridized super-hydrophilic anti-fog resin. The silicon-based hybrid super-hydrophilic anti-fog resin is based on polysiloxane modified acrylic resin, a functional monomer containing a sulfonic acid group is introduced, the dosage is controlled, a spraying process is combined, a prepared coating has excellent anti-fog performance, high transparency and mechanical stability, the water contact angle of an obtained coating film is 5-6 degrees, the hardness is 2-3H, the adhesive force is 0 grade, and the anti-fog performance is good. The acid and alkali resistance test lasts for more than 30 hours, and super hydrophilicity is realized. The coating shows excellent antifogging performance under the steam environment of 80 DEG C and the freezing environment of-15 DEG C, and is suitable for antifogging treatment of substrates such as optical devices and automobile glass.

The invention provides a preparation method of an imrecoxib intermediate as shown in a formula I. The preparation method is characterized by comprising the following steps: reacting p-tolueneacetic acid with 4-methylsulfonyl chloroacetophenone in the presence of halogenated salt and an organic solvent to generate the imrecoxib intermediate I: # imgabs0 #. The method is low in cost, green and environment-friendly, simple in process operation, less in side reaction, simple and convenient in post-treatment and high in purity of the obtained finished product, and sulfoxide impurities are not easy to form; the preparation method greatly alkalifies the technological process, is mild in reaction condition, controllable in reaction process quality and high in yield, has the cost advantage and is suitable for industrial mass production.

The invention discloses a precise construction strategy of a dibenzothiophene sulfuryl covalent organic framework material and systematically explains efficient application of the dibenzothiophene sulfuryl covalent organic framework material in photocatalytic synthesis of thiadiazole and derivatives thereof. The achievement relates to a plurality of leading subjects such as catalytic chemistry, organic synthesis, material science, environmental engineering and green chemistry. According to the method, 2, 4, 6-triformyl phloroglucinol and 3, 7-diaminodibenzo [b, d] thiophene-5, 5-dioxide are taken as construction units, and the crystalline S-COF rich in sulfuryl active sites can be quantitatively obtained through topology-oriented Schiff base condensation under the conditions of protonic acid catalysis, no water and no oxygen. Under the radiation condition of visible blue light, S-COF is used as a heterogeneous photocatalyst to drive green synthesis of 3, 5-di-p-tolyl-1, 2, 4-thiadiazole and series of derivatives thereof; the invention provides a new catalyst design normal form for light-induced organic conversion, and lays a solid foundation for sustainable development-oriented efficient synthesis chemistry.

A rechargeable lithium battery includes an electrolyte. The electrolyte comprises a non-aqueous organic solvent, a lithium salt, and an additive including an azide group and a sulfonyl group substituted with a halogen element.

The invention relates to a lithium battery electrolyte additive, an electrolyte and a lithium battery, and belongs to the technical field of lithium batteries, a sulfonyl borate compound is used as the electrolyte additive, the boron-containing compound additive is fully decomposed, compact and stable interfacial films containing boron and sulfur elements are formed on the surfaces of a positive electrode and a negative electrode, and the lithium battery electrolyte additive is formed. The decomposition of the electrolyte is inhibited, the corrosion damage of HF to a positive electrode interface is blocked, meanwhile, the dissolution of transition metal ions and the damage to a negative electrode are inhibited, and the cycle performance of the lithium ion battery is improved.

The present invention provides solid forms of N-[(1S,2E)-1-cyclopropyl-3- (methanesulfonyl)prop-2-en-1-yl]-2-(1,1-difluoroethyl)-4-phenoxypyrimidine-5-carboxamideide and solvates thereof, as well as therapeutic uses thereof and pharmaceutical composition comprising them.

The invention discloses a sulfonyl-containing uracil compound and an application thereof. The structure of the compound is shown as a general formula I, wherein the definition of each substituent group in a # imgabs0 # formula is shown in the specification; also disclosed in the specification are their use as herbicides.

The invention provides a polymer electrolyte, a secondary battery and a preparation method of the polymer electrolyte and the secondary battery. The non-aqueous electrolyte comprises an organic solvent, an electrolyte salt, a borate derivative with the mass fraction of 0.1%-15%, a sulfonyl-containing cross-linking agent A with the mass fraction of 0.1%-4%, a cross-linking agent B at least containing three carbon-carbon double bonds and an initiator, the mass ratio of the cross-linking agent B to the cross-linking agent A is (1-100): 1, the mass fraction of the borate derivative is 0.1%-15%, the mass fraction of the sulfonyl-containing cross-linking agent A is 0.1%-4%, and the mass fraction of the initiator is 0.1%-1%. The mass ratio of the sum of the mass of the borate derivative, the cross-linking agent A and the cross-linking agent B to the mass of the initiator is (1000-20): 1. The polymer electrolyte provided by the invention has high ionic conductivity, can improve the safety performance of a battery in a high proportion state, and can maintain good cycle performance at the same time.

The invention is applicable to the technical field of fuel cells, and provides a blending modified polybenzimidazole proton exchange membrane and a preparation method thereof, and the preparation method comprises the following steps: S1, preparing 4-methyl-N-toluenesulfonyl benzene sulfonamide; s2, preparing 4, 4 '-[imino bis (sulfonyl)] dibenzoic acid; s3, preparation of PSI: dissolving CBSI and a proper amount of anhydrous lithium chloride in a proper amount of a mixed solution of pyridine, triphenyl phosphite and pyrrolidone, adding diamino molecules after complete dissolution, heating and stirring the solution for 12 h, pouring the solution into methanol, filtering and collecting a product, washing with water, and drying to obtain the product PSI; and S4, preparing the PSI / OPBI blended membrane. The blended membrane prepared by the invention has excellent proton conductivity and good mechanical properties, and meets the performance requirements of the proton exchange membrane of the fuel cell; moreover, the raw materials are low in cost and easy to obtain, the synthesis conditions are mature, the yield is high, the feasibility is high, and the application prospect is wide.

The invention discloses a solid electrolyte, a lithium-based energy storage device and a preparation method, the solid electrolyte is obtained by curing an electrolyte through an ultraviolet lamp, the electrolyte comprises polyethylene glycol dimethacrylate, an initiator and a monomer, and the monomer contains a fluorosulfonyl group and an ester group; a monomer side chain contains fluorosulfonyl, so that the crystallinity of the polymer can be reduced, a passivation layer is effectively formed on the surface of a lithium negative electrode, and an electrochemical window of the battery is expanded, so that the cycle life of the battery is prolonged, and a formed flexible polymer skeleton can increase the compatibility between an electrolyte and an electrode, so that the interface resistance is reduced; the passivation layer can homogenize an interface electric field and regulate and control diffusion of lithium ions, so that dendritic crystal growth is effectively inhibited, and compact and uniform deposition is realized; according to the lithium-based energy storage device applying the electrolyte containing the monomer, the cycle life of a lithium half battery can be greatly prolonged, the utilization rate of a lithium metal negative electrode is remarkably improved, the polarization voltage of the battery is effectively reduced, and the coulombic efficiency of the battery is remarkably improved.

An electrolyte for sodium ion batteries can comprise a salt comprising one or more of sodium bis (fluoro sulfonyl) imide (NaFSI) salt, NaOTf, NaTFSI, NaBF4, NaPFe, and NaCICh, and an electrolyte solvent comprising at least one carboxylate ester as a dominant solvent. A sodium ion battery cell (100) can comprise the electrolyte (140) having a salt comprising one or more of NaFSI salt, NaOTf, NaTFSI, NaBF4, NaPFe, and NaC104, and an electrolyte solvent comprising at least one carboxylate ester as a dominant solvent. The battery cell (100) can also include an anode (130) in electrical contact with the electrolyte (140) and a cathode (150) in electrical contact with the electrolyte (140). A casing (120) can enclose the electrolyte (140), the anode (130), and the cathode (150) sufficient to prevent oxygen and moisture from entering the casing (120).

The invention discloses a preparation method of alpha-chloro-4-methylsulfonyl acetophenone. The preparation method comprises the following steps: step A, reacting a compound as shown in a formula I with trimethyl orthoformate and N-chlorosuccinimide in an organic solvent to obtain a compound as shown in a formula II; and B, reacting the compound shown in the formula II with a sulfuric acid aqueous solution in an organic solvent to obtain a compound shown in a formula III. The chlorination method provided by the invention has the advantages of high yield, no generation of dichloro impurity and high product purity, and can be used as a rofecoxib or imrecoxib intermediate; the method is simple to operate, mild and controllable in reaction condition, capable of being amplified to kilogram-level reaction and suitable for industrial production.

Provided is an electrolyte solution which contains a bis(fluorosulfonyl) imide salt, a hexafluorophosphate, a compound that contains an anion represented by general formula (1), and a nonaqueous solvent, wherein: the ratio of the mass of the hexafluorophosphate to the mass of the bis(fluorosulfonyl) imide salt in the electrolyte solution is 0.45 or less; and the content of the compound that contains an anion represented by general formula (1) is 0.03 mass% or more in 100 mass% of the electrolyte solution.　General formula (1): R1SO3 - (R1 represents a halogen atom.)

The invention relates to the technical field of 1-methylimidazole and synthesis thereof, in particular to 1-methylimidazole based on an ionic liquid catalytic system and an efficient synthesis process of the 1-methylimidazole, glyoxal, methylamine and formaldehyde are used as raw materials, and the ionic liquid catalytic system is prepared by compounding sulfonic acid group and carboxyl functionalized ionic liquid according to the ratio of 2: 1. The cocatalyst is formed by compounding transition metal salt and organic alkali according to the ratio of 1: 2, the molar ratio of the raw materials is 1: 2: 2, and the sulfonyl ionic liquid is subjected to microwave activation, carboxyl ionic liquid loading, transition metal salt ultrasonic pretreatment and organic alkali rectification purification to synergistically promote the reaction, so that efficient synthesis of 1-methylimidazole is realized, and the yield and purity of the product are improved. According to the process, a specially treated ionic liquid catalytic system and a cocatalyst are adopted, operations such as pulse stirring and multiple extraction are combined, efficient synthesis of 1-methylimidazole is achieved, the product purity exceeds 99%, the yield exceeds 90%, the cost is reduced, pollution is reduced, the green chemistry concept is met, and the application prospect is wide.