91 results about "Thiocyanate" patented technology

The technology of the present disclosure generally relates to the field of power storage devices, and more specifically to a solid electrolyte, an electrode, a solid-state battery, and a method for producing the same. An aspect of the present disclosure relates to a process for producing a solid electrolyte, comprising the steps of: - contacting, in the presence of a catalyst: - a polymer precursor compound comprising polyethylene glycol (PEG) and / or polytetrahydrofuran (PTHF), wherein the polymer precursor compound comprises on average per polymer precursor molecule, -at least 2.0 alkoxysilyl functional groups, with a functionality of at least 2.0, preferably at least 2.5, preferably at least 3.0; and / or -at least 1.0 alkoxysilyl functional groups, with a functionality of at least 3.0; - optionally, an organo-tri-alkoxy silane, an organo-tetra-alkoxy silane, and / or a mixture thereof comprising a metal ion (M+) chelating moiety being a cyanurate, a crown ether, an aza-crown ether, a thia-crown ether, a cryptand, a carbamate, a cyano group, a thiocyanate group, or a metallacrown,, - a metal (M+) salt, preferably does the metal salt comprises Li+, Na+, Mg+, Ca+, Al+, and / or a combination thereof, preferably lithium (Li+); - a solvent, preferably an organic solvent; and, - optionally, an ionically conductive compound; thereby obtaining a solid electrolyte; - optionally, drying the obtained solid electrolyte.

The invention relates to a method for regulating and deacidifying in a bioleaching process of low-grade copper sulphide ore, aiming at the problem of excessive acid caused by excessive oxidation of pyrite in a dump leaching system, a thiocyanate bactericide is added into the bioleaching system of the low-grade copper sulphide ore, and the thiocyanate bactericide is dissolved in a spray liquid of the bioleaching system, and is added into the spray liquid of the bioleaching system; under the catalytic action of mineral leaching microorganisms, oxidation of ferrous ions is enhanced, so that the oxidation-reduction potential of a solution is increased, oxidation of pyrite is intensified, acid accumulation is excessive, the thiocyanate bactericide can remarkably inhibit the activity of part of sulfur-oxidizing bacteria and even kill part of sulfur-oxidizing bacteria, and therefore the activity of ferrous oxide is reduced; compared with the prior art, the method has the advantages that the sulfur oxidation activity of microorganisms is greatly influenced, but the oxidation influence on iron is relatively small, so that the acid leaching is reduced under the condition that the copper leaching of the copper sulfide ore is not influenced, the copper leaching is not influenced, the acid leaching is reduced, the production cost is reduced, the environmental influence is reduced, and the like.

The invention relates to a process for degrading thiocyanate radicals in carbon leaching tailing wastewater by a plug flow type aerobic sludge method. A process for degrading thiocyanate radicals in carbon leaching tailing wastewater by a plug-flow aerobic sludge process comprises the following steps: (1) pretreatment: adding an iron-containing agent into the carbon leaching tailing wastewater to carry out a primary cyanide breaking reaction, after the reaction is finished, settling by a thickener 1, carrying out filter pressing, and separating out filter pressing residues and filter pressing liquid; (2) carrying out multi-stage buffer and sedimentation treatment on the press filtrate to obtain overflow water; (3) introducing the overflow water into a plug flow type aerobic aeration tank, and introducing a compound flora to carry out biochemical reaction; and (4) after the reaction is finished, precipitating the water in the plug-flow aerobic aeration tank to obtain supernate and bottom sludge. According to the process for degrading the thiocyanate radicals in the carbon leaching tailing wastewater by the plug flow type aerobic sludge method, the wastewater treatment effect and the treatment capacity can be greatly improved through the treatment mode of pretreatment, multi-stage buffering and biodegradation, gold recovery is achieved, and great economic benefits are achieved.

The invention relates to the field of pesticide preparations, and discloses a sterilization composition containing tetramycin and Saisentong as well as a preparation method and application of the sterilization composition. Tetramycin and Saisentong serve as active components of the composition, and a dual-structure composite lignin derivative system serves as a functional carrier; the system is composed of high-molecular-weight modified lignosulfonate and specific lignin phenol fragments with low polymerization degree. The high-molecular-weight component forms a physical barrier on the surfaces of active component particles, so that the storage stability and the application safety of the preparation are improved; the low-polymerization-degree component can be degraded by an extracellular enzyme secreted by citrus canker pathogen, so that the targeted release of the active component at the focus is realized. The composition disclosed by the invention effectively reduces the decomposition rate of the active components and the phytotoxicity risk to crops, and meanwhile, the field control effect on the citrus canker is remarkably improved. The composition provides an efficient and safe new choice with a targeting effect for chemical prevention and treatment of citrus canker.

The invention discloses a preparation method of a spherical carbon nano polymer steel slag cement grinding aid, which comprises the following steps: (1) mixing and dissolving a polycarboxybenzene compound, an amino alcohol compound and a condensing agent in an organic solvent to prepare a solution A, stirring and activating at a first temperature, then keeping stirring and heating to a reaction temperature, and reacting at a certain pressure to obtain a reaction solution B; after the reaction is finished, centrifuging and taking supernate, and filtering to obtain a polymer solution; (2) mixing the obtained polymer solution with hydrochloric acid to prepare a solution B, placing the solution B in an ice salt bath, dropwise adding a nitrite solution, and stirring for a first reaction; and adding thiocyanate and a cuprous salt catalyst, removing the ice salt bath, heating, carrying out a second reaction, and cooling to room temperature after the reaction is finished to obtain the spherical carbon nano polymer steel slag cement grinding aid. The grinding aid can improve the grinding efficiency of the steel slag cement, the performance of the steel slag cement is improved, and the process is simple and efficient.

The invention relates to the technical field of organic chemistry, in particular to a method for efficiently constructing a thiocyano substituted aromatic organic intermediate, which is characterized in that a reaction system consisting of CFBSA and KSCN is utilized, acetonitrile is used as a solvent, aromatic amine, indole and aromatic ring compounds are used as reaction substrates to generate thiocyanation reaction at room temperature, and the thiocyano group is efficiently introduced. The method has the advantages of low price, environmental friendliness, convenience in use, simplicity and convenience in operation, insensitivity to water and oxygen, no need of metal catalysis, wide substrate application range and application to thiocyanation reaction of aromatic amine compounds, indoles and phenols through thiocyanate sources such as KSCN, NH4SCN and the like.

The application belongs to the technical field of thiocyanate detection, and specifically relates to a method for detecting thiocyanate based on inherent internal standard surface-enhanced Raman scattering substrate, which comprises the following steps: S1. Preparing a thiocyanate standard curve: taking the thiocyanate concentration as the horizontal coordinate, and the ratio of the peak intensity at the characteristic peak of thiocyanate with different concentrations to the peak intensity at the internal standard peak of a bare silver SERS chip as the vertical coordinate to establish a linear regression equation, thereby obtaining the thiocyanate standard curve; S2. Detecting experimental precision; S3. Quantitatively detecting the thiocyanate content: detecting the SERS signals of the thiocyanate sample to be measured and the bare silver SERS chip, and comparing the SERS signals with the thiocyanate standard curve in step S1 to obtain the thiocyanate content to be measured. In the application, the inherent peak generated by the substrate silver oxide in the bare silver SERS chip is used as an internal standard reference, no additional internal standard substance is added, the substrate detection performance is not affected, the linear fitting of the standard curve equation is better, the influence of errors is greatly reduced, the quantification is more accurate, and the thiocyanate can be rapidly detected.

A novel bis-ligand chalcopyrite collector and a preparation method and application thereof. The collector is prepared by first synthesizing an intermediate oxalyl diisothiocyanate from oxalyl chloride and thiocyanate, and then reacting the intermediate with an amine or an alcohol using a one-pot method. The collector provided by the present disclosure can form more stable dual-site adsorption on the chalcopyrite surface, thereby generating a more stable double-chelate-ring structure than the single-site adsorption of a traditional chalcopyrite collector such as xanthate and dithiophosphate. The collector not only has higher collection ability and excellent selectivity, but also can achieve efficient copper-sulfur separation even under a low-alkalinity condition. The preparation process of the collector is simple and operable, facilitating the flotation of chalcopyrite and its separation from pyrite.

The application provides a method for preparing calcium thiocyanate by using desulfurization waste liquid, calcium nitrate and ammonium thiocyanate are respectively dissolved into 30-50% solution, the calcium nitrate solution is slowly dropped into the hot ammonium thiocyanate solution under the conditions of heating and stirring, under the heating state, the double decomposition reaction occurs to generate calcium thiocyanate and ammonium nitrate, with the continuous heating and the evaporation of water, the concentration of calcium thiocyanate gradually increases, the ammonium nitrate is heated and decomposed to generate nitrogen oxide and ammonia gas, the generated process gas rich in nitrogen oxide and ammonia gas is condensed and introduced into the coking ammonia removal and denitration section for treatment, and finally the evaporation and concentration obtain about 50% calcium thiocyanate product. The method uses industrial waste to provide raw materials, and the production cost is low; the process tail gas generated in the reaction only needs to be treated by the existing ammonia removal and denitration device of the coking enterprise, without increasing additional equipment, thereby saving the expenditure; and the method has environmental protection benefit, social benefit and economic benefit.

This invention discloses a method for preparing a micro-electrolysis packing material for thiocyanate-containing wastewater: Raw materials are sieved, mixed, and formed into spheres of 1-1.5 cm in size, then dried. The raw materials include 14-50 parts iron powder, 6-47 parts activated carbon powder, 4-35 parts copper powder, 20-40 parts sodium-based bentonite, and 1-5 parts pore-forming agent. The iron powder is sieved through a 60-mesh sieve, and the undersize is then sieved through an 80-mesh sieve, with the remaining material collected. The activated carbon powder is sieved through an 80-mesh sieve, and the undersize is then sieved through a 100-mesh sieve, with the remaining material collected. The copper powder is sieved through a 160-mesh sieve, and the undersize is then sieved through a 200-mesh sieve, with the remaining material collected. The binder is sieved through a 200-240-mesh sieve, and the undersize is collected. After calcination, the spheres are magnetized in a 10-40 Mt magnetic field for 10-40 min. This invention also discloses the application of the prepared packing material in the micro-electrolysis treatment of thiocyanate. The micro-electrolysis packing material prepared by this invention for thiocyanate-containing wastewater has a high removal rate and a long service life in the pH range of 3 to 9 of the wastewater.

The invention discloses a method for recovering precious metals from an extracted organic phase. According to the method for recycling the precious metal from the extracted organic phase, thiourea-thiocyanate (TU-SCN-) is adopted to cooperate with a complexing back-extraction agent A to conduct multi-stage back-extraction on the extracted organic phase O, and metal recycling in the extracted organic phase is achieved. According to the method for recovering the precious metal from the extracted organic phase, a thiourea-thiocyanate (TU-SCN-) synergistic complexing back extraction system is adopted for recovering the metal from the extracted organic phase, the back extraction efficiency is high, and the metal recovery rate is high (gt; and precious metals such as gold and silver can be recovered from an organic phase at a relatively low cost.

The present invention provides a corrosion-preventive coating composition that allows each step in the corrosion prevention process to be carried out in fewer steps, reduces the risk of re-corrosion, and, when applied to a corroded structure, restores the surface to its pre-corrosion state. [Solution] A corrosion-resistant coating film is used, formed from a corrosion-resistant coating composition (Y) which contains an ionic liquid (X) consisting of a thiocyanate anion and a cation (B) and has a pH of 5 to 9 at 25°C, preferably having a halogen content of 20 ppm or less.

This invention discloses a perovskite active layer passivating agent, a perovskite solar cell, and a preparation method thereof, relating to the field of perovskite solar cell technology. The invention uses a combination of formamidine thiocyanate (FASCN) and dodecyl ammonium bromide (DABr) as passivating agents. Through the "phase screening" effect of FA⁺ and the coordination regulation of SCN⁻, n=3 single-phase quasi-two-dimensional perovskite is selectively generated on the wide-bandgap perovskite surface, completely suppressing the n=2 phase and eliminating multiphase energy level disorder. Simultaneously, it achieves triple synergistic passivation: SCN⁻ coordinates and passivates lead defects, Br⁻ fills halogen vacancies, and FA⁺ occupies A-site vacancies, resulting in a 27% reduction in trap density and a 12-fold increase in carrier lifetime. The resulting perovskite solar cell exhibits a 6.8% increase in efficiency, significantly enhanced thermal stability, and a 4-fold increase in T80 lifetime. Furthermore, it is fully compatible with existing preparation processes and suitable for large-scale production.

The application discloses a reverse perovskite material. Specifically, a thiocyanate doped modified reverse perovskite material, a preparation method and application thereof are provided. The reverse perovskite material has a quantum luminous efficiency of 99.8%, has a wide application prospect in the photoelectric field, and has a high conductivity, and has a wide application prospect in a solid-state electrolyte of a solid-state lithium battery.

The invention provides a method for improving the energy storage density of a polythiourea film through block copolymerization, which comprises the following steps: adding thiocyanate into a polar solvent, and stirring to dissolve the thiocyanate to obtain a dissolved solution; adding excessive aromatic ring diamine into the dissolved solution for multiple times, and reacting in an inert gas atmosphere to obtain an amino-terminated polythiourea precursor; adding dianhydride and m-phenylenediamine into the amino-terminated polythiourea precursor, and continuously reacting to obtain a segmented copolymer solution; uniformly coating a carrier with the segmented copolymer solution, heating to remove the polar solvent, then heating at a preset rate step by step, and respectively keeping preset time at different temperatures to complete imidization; the carrier is placed in deionized water to be soaked and demolded, the obtained polythiourea-based segmented copolymer film is dried under the vacuum condition, and the energy storage density of the polythiourea film is improved. The obtained polythiourea film has high breakdown strength, the energy storage density is improved, the cost is low, and the polythiourea film has good application prospects in the field of film capacitors.

The application belongs to the technical field of fluorocarbon surfactant application, and particularly discloses a synthesis method of sodium perfluorohexylethyl sulfonate, which comprises the following steps: (1) under the protection of nitrogen, perfluorohexylethyl iodine, potassium thiocyanate and a phase transfer catalyst are added into water and stirred to react, an organic layer is separated, and rotary evaporation is performed to obtain perfluorohexylethyl thiocyanate; (2) the perfluorohexylethyl thiocyanate is added into water and heated, and then chlorine is continuously introduced to stir to react, and filtration separation is performed to obtain perfluorohexylethyl sulfuryl chloride; and (3) the perfluorohexylethyl sulfuryl chloride is added into sodium hydroxide water solution drop by drop, and stirred to react, and after filtration, water washing, recrystallization and drying, the sodium perfluorohexylethyl sulfonate is obtained. The sodium perfluorohexylethyl sulfonate has high yield and high purity, has excellent surface activity, has excellent compounding performance with a hydrocarbon surfactant, has very good thermal stability, salt resistance and chemical stability, and meets the environmental protection requirements.

The invention discloses a preparation method of a benzylsulfonyl fluoride compound, which comprises the following steps: taking benzylthiocyanate as a substrate, in a solvent, taking benzylthiocyanate shown as a formula (1) as a substrate, reacting under the action of an additive, an F source and a gas atmosphere, and obtaining the benzylsulfonyl fluoride compound shown as a formula (2) after the reaction is finished, in the formulas (1) and (2), R is selected from one or more of H, alkyl, aryl, halogen, cyano, nitryl, alkoxy, acyl and amido. According to the method disclosed by the invention, the target product can be synthesized by only 4-8 hours, so that the target product can be obtained with relatively high yield, and the method is relatively rapid and efficient. According to the synthesis method disclosed by the invention, the benzyl sulfuryl fluoride compound is synthesized from simple and easily available benzyl thiocyanate under relatively simple conditions, and the fluorine-containing building block compound which is widely applied to the fields of medicines, pesticides and petrochemical engineering is realized.

The invention provides a preparation method of a prothioconazole intermediate, which comprises the following steps: (1) reacting a hydrazino substance with formaldehyde under an alkaline condition to obtain an intermediate product, and (2) reacting the intermediate product, thiocyanate and a polymerization inhibitor under an acidic condition to obtain the prothioconazole intermediate, the structural formula of the intermediate is as follows: the polymerization inhibitor is selected from one or more of a phenol polymerization inhibitor and an inorganic salt polymerization inhibitor. The intermediate prepared by the preparation method provided by the invention has higher purity and yield, and is simple to operate and especially suitable for industrial production.

The invention relates to a preparation method of a heating functional material in outdoor down jacket fabric, and belongs to the technical field of textile materials.The heating functional material is functional fibers.The preparation method comprises the specific steps that firstly, polyamide acid, lithium thiocyanate, 1-ethyl-3-methylimidazolium acetate and water are evenly mixed to obtain ionic liquid; adding the cashmere protein fiber, the mulberry fiber and the lithium tungsten bronze nano powder into the ionic liquid, fully stirring to obtain a spinning solution, and performing wet spinning processing and freeze drying treatment on the spinning solution to obtain the functional fiber. The functional fiber is prepared from the spinning solution containing the lithium tungsten bronze nano powder, the lithium thiocyanate, the 1-ethyl-3-methylimidazolium acetate and other components in cooperation with the processing technology combining wet spinning and freeze drying, and the functional fiber can achieve the heating effect by absorbing heat radiation of the human body; when the fabric is applied to production of down jacket fabrics, the heating and warm-keeping effects of down jackets can be enhanced.

The invention relates to the field of pesticide preparation, and discloses a method for preparing a pyrithiobac-sodium intermediate and application of the pyrithiobac-sodium intermediate. The method comprises the following steps: carrying out diazotization reaction on 2-chloro-6-aminobenzoic acid and a diazotization reagent to obtain diazonium salt; carrying out thiocyanation reaction on the diazonium salt and thiocyanate to obtain thiocyanate as shown in a formula (I); and carrying out hydrolysis reaction on the thiocyanate and first acid to obtain the pyrithiobac-sodium intermediate as shown in a formula (II). The raw materials adopted by the method are easy to obtain, the reaction conditions are mild, the yield of intermediate products and target products is high, and industrial production is facilitated. Formula (I) and formula (II).

Compositions and methods are disclosed for improving seed quality. For example, treating a stand of seed crops with a seed crop treatment that includes an effective amount of cyanate, thiocyanate, an acceptable salt of cyanate or thiocyanate, an ester of cyanate or thiocyanate, an isocyanate or isothiocyanate, or a combination thereof results in one or more improved seed qualities compared to a control. The improved seed qualities may include, but are not limited to, enhanced seed vigor, increased quantity of saleable seed, increased proportion of saleable seed, increased uniformity of seed shape and size, and desirable bag weight.

The application belongs to the field of electroluminescence, and discloses an organic light-emitting compound, an organic electroluminescent composition, a light-emitting device and a display device. The structure of the organic light-emitting compound is shown in formula I; formula I; wherein L1 and L2 are independently selected from a substituted or unsubstituted aromatic group or heteroaromatic group with 6-30 ring atoms; R1 and R2 are independently selected from H, D, a cyano group, a carbamoyl group, a halogen formyl group, a formyl group, an isocyano group, an isocyanate group, a thiocyanate group, an isothiocyanate group, a hydroxyl group, a nitro group, CF3, Cl, Br, F, a first group with 1-20 carbon atoms, a second group with 2-20 carbon atoms, a third group with 3-20 carbon atoms, a fourth group with 7-20 carbon atoms, a fifth group with 5-40 ring atoms, or a combination of the groups. The organic light-emitting compound provided by the application has good photoelectric performance and can be applied to an organic electroluminescent device as a light-emitting guest material.

The invention discloses a perovskite precursor solution, a perovskite active layer prepared from the perovskite precursor solution and application of the perovskite active layer. The perovskite precursor solution contains a mixture of formamidine thiocyanate (FASCN) and rubidium thiocyanate (RbSCN). According to the invention, the mixed additives formamidine thiocyanate FASCN and rubidium thiocyanate RbSCN are added into the precursor solution to effectively promote phase transformation from an inactive phase delta to an active phase alpha, so that the efficiency and the stability of the methylamine-free perovskite battery are remarkably improved, and the methylamine-free perovskite battery has a relatively good commercial application prospect.

The invention relates to the technical field of biological sewage treatment, in particular to an autotrophic flora coupling denitrification method by taking desulfurization waste liquid in the coking industry as electron donors, which comprises the following steps: taking thiocyanate and thiosulfate in the desulfurization waste liquid in the coking industry as the electron donors; efficient removal of nitrate nitrogen in the wastewater is achieved through the coupling effect of the sulfur autotrophic denitrification process and the anaerobic ammonia oxidation process, and meanwhile resource utilization of the desulfurization waste liquid is achieved. In the sulfur autotrophic denitrification process, reducing state sulfur is used as an electron donor to reduce nitrate nitrogen into nitrogen and nitrite nitrogen, meanwhile, thiocyanate is converted into ammonia nitrogen and sulfate, and thiosulfate is converted into sulfate; ammonia nitrogen and nitrite nitrogen are converted into nitrogen in the anaerobic ammonia oxidation process, and a small amount of generated nitrate nitrogen can be continuously used as a substrate in the sulfur autotrophic denitrification process. The method does not need additional organic carbon sources, is low in operation cost, low in sludge yield and environment-friendly, realizes treatment of wastes with wastes, and has economic benefits and environmental protection values.

The present application relates to the technical fields of medical and pharmaceutical chemical synthesis, and particularly relates to a synthesis method of 3-thiocyanatospiro cyclobutyl oxindole compounds, which comprises the following steps: in a reactor, compound 1, compound 2, a catalyst, an additive and a solvent are stirred for 30 minutes at room temperature, after the reaction is completed, the crude product is obtained by reduced pressure distillation, and the 3-thiocyanatospiro cyclobutyl oxindole compound is obtained by column chromatography and thin layer chromatography purification. N The present application takes phenyl bicyclo[1.1.0]butane-1-formamide compounds and thiocyanate as raw materials, and promotes the synthesis of 3-thiocyanatospiro cyclobutyl oxindole compounds by an oxidant. The present application has the advantages of simple synthesis steps, mild conditions, safe operation, good functional group compatibility, high reaction conversion, low cost and the like, and is conducive to industrial production.

This invention provides a method for purifying erythromycin thiocyanate. The method first involves dissolving crude erythromycin thiocyanate in an ester solvent under alkaline conditions; then adding thiocyanate and crystallizing under neutral to slightly alkaline conditions; followed by membrane-assisted cooling for secondary crystallization; and finally, filtration and drying to obtain purified erythromycin thiocyanate. This invention uses a membrane-assisted cooling coupled crystallization method instead of the traditional cooling crystallization method, successfully controlling the nucleation rate, eliminating explosive nucleation, and significantly improving the content and yield of erythromycin thiocyanate A.

The application discloses a method for detecting thiocyanate in a complex serum sample and application. The method comprises the following steps: pretreating a serum sample, performing SERS detection, performing on-chip spectral quality control, and performing ratio type quantification. The application realizes rapid, trace, accurate and reliable quantitative detection of SCN ‑ In the complex serum sample by combining an interface self-assembly gold nano array base, 4-MBA ratio type internal standard correction and an on-chip quality control strategy based on ultrafiltration induced spectral transformation, and can be applied to the fields of smoking exposure evaluation and smoking cessation process monitoring.

The invention discloses a perovskite thin film for a flexible indoor photovoltaic module and a preparation method and application of the perovskite thin film, and belongs to the technical field of photovoltaic modules. The technical problem to be solved is to provide a perovskite precursor film and a photovoltaic module which are high in crystallinity, good in hydrophobicity, high in weak light energy conversion efficiency and high in stability through combination of material design and process optimization. The key point of the technical scheme is that the preparation method of the perovskite thin film comprises the following steps: preparing a perovskite precursor solution, wherein the preparation raw materials of the perovskite precursor solution comprise a thiocyanogen-containing additive; coating a flexible substrate with the perovskite precursor solution, and removing the solvent to obtain a perovskite intermediate phase film; and performing first-stage infrared radiation annealing on the perovskite intermediate phase thin film, and performing second-stage high-temperature annealing on the perovskite intermediate phase thin film with the front face facing upwards or downwards.

The application discloses a kind of concrete anticorrosive coating with antibacterial and self-repairing and preparation method thereof, the anticorrosive coating includes the following weight parts of raw materials: 20-50 parts alicyclic epoxy resin, 100-150 parts vinyl resin, 30-50 parts multifunctional curing agent, 5-15 parts polyvinylamine resin, 10-25 parts silicone resin, 1-3 parts silane coupling agent, 0.5-2 parts initiator, 3-8 parts epoxy resin curing agent and 30-50 parts filler;The multifunctional curing agent includes the following weight parts of raw materials: 10-15 parts vinyl epoxy, 15-20 parts allyl thiocyanate and 5-15 parts allyl methyl disulfide.The concrete anticorrosive coating of the application contains multifunctional curing agent, which has thiocyanate group and disulfide group, the thiocyanate group can effectively inhibit the activity of escherichia coli and staphylococcus aureus, prevent escherichia coli and staphylococcus aureus from corroding the coating, and improve the service life of the anticorrosive coating;Disulfide group can undergo reversible rupture and recombination, with self-repairing ability.

The application discloses a preparation method of a 7-position-hydrogen-substituted pyrazolo[1,5-a]pyrimidine compound. The preparation method comprises the following steps: contacting a compound shown in a formula (I) with a compound shown in one of formula (II) or formula (III), a thiocyanate, an iodine-containing oxidant and a solvent to react. The preparation method has the characteristics of simple operation, low cost of raw materials, wide application range of substrates and high yield, and the obtained product is an important pharmaceutical intermediate.