171 results about "Thiophenol" patented technology

The invention discloses a method for synthesizing deuterated olefin under catalysis of a palladium membrane by taking D2O as a deuterium source, and belongs to the technical field of synthesis of deuterated olefin building blocks. According to the method, a three-chamber electrolytic tank separated by a palladium membrane and an ion exchange membrane is used as a reactor, the palladium membrane is used as a working electrode, an electrolyte deuterium aqueous solution is used as an electrolyte, deuterium water is electrolyzed through a constant-potential electrolysis method, and formed active deuterium is transmitted to one side of an organic reaction taking absolute ethyl alcohol or cyclohexane as an organic solvent; and catalyzing an alkyne compound by using a palladium membrane modified by sodium thiophenol to perform reduction deuterization so as to synthesize a deuterated olefin compound with high selectivity, and further synthesizing a corresponding deuterated drug. The invention provides a green, efficient, high-universality and low-cost amplification synthesis method for synthesizing a deuterated olefin building block containing a functional group easy to reduce and hydrolyze, and the method has a wide application prospect.

The invention relates to the technical field of electrocatalytic CO2 reduction, and particularly discloses a copper-based electrocatalytic material which comprises a plurality of element-doped copper-based nanowires, and the doped elements are one or more of S, F, Br, N and O. The invention also discloses a preparation method of the copper-based electro-catalytic material, which comprises the following steps: mixing a solution containing the thiophenol ligand with a copper salt solution to obtain a turbid liquid; performing ultrasonic treatment, heating, stirring and aging treatment on the turbid liquid, and then performing centrifugation, washing and drying treatment to obtain a copper-based nanowire precursor; the copper-based nanowire precursor is subjected to roasting; and carrying out in-situ electrochemical activation treatment on the roasted copper-based nanowire precursor. The preparation method is simple and effective, and multi-step doping is not needed. When the copper-based electro-catalytic material is applied to preparation of ethylene through electro-catalytic carbon dioxide reduction reaction, the copper-based electro-catalytic material has high ethylene selectivity and can efficiently and stably work under high current density.

The invention discloses a preparation method of a dotenorad key intermediate, and belongs to the technical field of compound synthesis. In the preparation method of the dotenorad key intermediate, provided by the invention, 2-aminothiophenol and formaldehyde are used as raw materials to carry out cyclization reaction to prepare a compound as shown in a formula 1, and then the compound as shown in the formula 1 and 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 According to the method, 3-(3, 5-dichloro-4-methoxybenzoyl chloride)-2, 3-dihydro-1, 3-benzothiazole is used as a raw material, an amidation reaction is carried out on 3, 5-dichloro-4-methoxybenzoyl chloride in an aqueous solution of an organic solvent, and the key intermediate 3-(3, 5-dichloro-4-methoxybenzoyl)-2, 3-dihydro-1, 3-benzothiazole of dotenorad can be effectively prepared; the obtained dotenorad key intermediate is relatively high in yield and purity; moreover, benzothiazoline which is widely used in the prior art does not need to be used in the preparation method, an activating agent or a solubilizer does not need to be used, the operation method is simple, reaction conditions are mild, and the method is suitable for actual industrial production.

The invention discloses an aggregation-induced emission material with high fluorescence quantum yield and large Stokes shift as well as a preparation method and application of the aggregation-induced emission material, and belongs to the technical field of preparation of aggregation-induced emission materials. Comprising the following steps: carrying out Suzuki-Miyaura coupling reaction on organic boric acid and bromosalicylaldehyde to obtain an intermediate; and adding the intermediate, sodium pyrosulfite and aminothiophenol into an organic solvent, and then carrying out high-temperature reaction to prepare the aggregation-induced emission material. The aggregation-induced emission material is synthesized by a two-step method, so that the aggregation-induced emission material can be rapidly synthesized on a large scale, and the prepared aggregation-induced emission material also has the advantages of high fluorescence efficiency, large Stokes shift, good stability and the like.

The invention discloses an antistatic fabric and a preparation method thereof, and relates to the technical field of fabrics. When the antistatic fabric is prepared, firstly, polyamide is grafted with 2-chloro-6-vinylpyridine under the action of an initiator, then the polyamide reacts with 2-amino-4-methoxypyrimidine-5-boronic acid pinacol ester, methoxyl is removed through boron tribromide, then the polyamide reacts with 2-diphenylphosphinobenzaldehyde, and modified polyamide is obtained; secondly, grafting tea polyphenol on the multi-walled carbon nanotube which is firstly treated by nitric acid and then treated by thionyl chloride, and then reacting with 4-[2, 2 ': 6', 2 ''-terpyridyl]-4 '-yl-thiophenol to obtain a modified multi-walled carbon nanotube; and finally, carrying out melt spinning on the modified polyamide, the modified multi-walled carbon nanotubes and the antibacterial agent to obtain antistatic fibers, and weaving the antistatic fibers to obtain the antistatic fabric. The antistatic fabric prepared by the invention has excellent flame retardance, electrical conductivity, ultraviolet resistance and oxidation resistance.

The invention discloses a preparation method of a dotenorad key intermediate (a compound shown as a formula I), which comprises the following steps: alkalizing 2-aminothiophenol to generate 2-aminothiophenol sodium salt, carrying out cyclization reaction on the 2-aminothiophenol sodium salt and formaldehyde, and finally condensing the 2-aminothiophenol sodium salt and 3, 5-dichloro-4-methoxybenzoyl chloride to obtain the dotenorad key intermediate (the compound shown as the formula I).

The invention belongs to the field of lead compound library construction in medical research, and particularly relates to a construction method of an On-DNA aryl sulfide structure compound, which comprises the step of reacting On-DNA aryl mercaptan or On-DNA aryl thiophenol with a halide to generate the On-DNA aryl sulfide structure compound, the step is a photocatalytic reaction at room temperature, and the on-DNA aryl sulfide structure compound is obtained. The wavelength of the light source for reaction is 315-455 nanometers, the solvent for reaction comprises an organic solvent and water, and the organic solvent in the solvent is one or more of dimethyl sulfoxide, N, N-dimethylformamide and dimethylacetamide. The oligomeric nucleic acid-aryl sulfide structure compound with rich structures can be obtained at a time under the reaction conditions, the reaction conditions are wide in adaptability and obviously superior to the prior art, the oligomeric nucleic acid-aryl sulfide structure compound is suitable for being used as a reaction raw material of a first-stage or second-stage halide, and the conversion rate of a third-stage iodide can also reach 90% or above.

The invention belongs to the technical field of pharmaceutical analysis, and particularly relates to a method for detecting related substances in 2-aminothiophenol. According to the detection method of the 2-aminothiophenol related substances, provided by the invention, a reversed-phase HPLC (High Performance Liquid Chromatography) determination method is provided, the detection of the 2-aminothiophenol related substances can be realized, the specificity, linearity, precision, sensitivity, precision and durability of the method are good, and the method is suitable for quality control of 2-aminothiophenol.

The invention relates to a new energy optical cable and a preparation method thereof, and belongs to the technical field of optical cables. A new energy optical cable is sequentially composed of optical fibers, a loose tube, an insulating layer and a sheath layer from inside to outside, the loose tube surrounds the peripheries of a plurality of groups of optical fibers, gaps are reserved between the plurality of groups of optical fibers and the loose tube, the gaps are filled with ointment, the insulating layer covers the outer side of the loose tube, and the insulating layer is made of an aramid fiber material; the loose tube is made of a polypropylene material or a nylon material; the sheath layer wraps the outer side of the insulating layer. And the sheath layer comprises the following components: TPU, HDPE, EVA, organic modified graphene, a plasticizer, an antioxidant, an anti-ultraviolet agent, a flame retardant and an initiator. According to the invention, amino thiophenol is grafted through vinyl silicone oil, then chemical bond connection with benzaldehyde derivatives is formed, titanium oxide / graphene oxide is coated, and the organically modified graphene can significantly improve the tensile strength, elongation at break and high temperature resistance of the sheath layer.

The present invention relates to a treatment process for mining sludge and sewage, and belongs to the technical field of mining sludge and sewage treatment. A treatment process for mining sludge and sewage treats mining sludge and sewage through a treatment system, wherein the treatment system comprises a water distribution tank, a reaction tank and a sedimentation tank connected in sequence, the reaction tank is used to add a flocculant for flocculation reaction, wherein the flocculant is made of activated carbon as a raw material, metal oxides are generated on its surface to form composite particles, and then modified with cardanol and aminothiophenol. The treatment system for mining sludge and sewage of the present invention comprises a water distribution tank, a reaction tank and a sedimentation tank, which helps to improve the treatment efficiency, and also helps to protect the environment and ensure the stable operation of the mine water treatment system. The flocculant prepared by the scheme of the present invention adsorbs perfluorinated compounds through hydrophobic effect, hydrogen bond, ion exchange and electrostatic interaction, and has an excellent removal effect on them.

The invention is applied to the technical field of compound preparation, and discloses a synthesis method of o-aminothiophenol, which comprises the following steps: uniformly mixing 2-chloronitrobenzene, water and strongly basic anion exchange resin, heating, dropwise adding a hydrosulfide aqueous solution, carrying out heat preservation reaction, cooling and filtering after the reaction is finished, and drying to obtain the o-aminothiophenol. Eluting the filter cake with liquid alkali, acidifying and layering to obtain an o-aminothiophenol crude product, and distilling to obtain the product. The thiophenol and the basic group of the resin are salified, the main reaction for generating 2-nitrothiophenol is promoted in the early stage, and the generation of a nitroreduction byproduct 2-aminochlorobenzene is greatly reduced, so that the product yield is greatly improved; the product stability is improved by salifying, so that disulfides are prevented from being formed by bimolecular oxidation of thiophenol, reduction is not needed, the product can be obtained by acidification after alkali elution, the process is shortened, and the cost is reduced; the production process is simple to operate, pressure reaction is avoided, the requirement on equipment is low, and the yield is high and can reach 95% or above; the purity of the obtained product can reach 99% or above.

The application discloses a preparation method of perfluoroalkyl aryl sulfide, and a structural formula of the perfluoroalkyl aryl sulfide is shown as formula (I); the method comprises the following steps: firstly, obtaining corresponding aryl sulphenyl chloride by chlorination of thiophenol; under the condition that fluoride and crown ether exist, obtaining perfluoro-1,1-dimethylbutyl negative ion by addition of D-2 ‑ And the aryl sulphenyl chloride added is subjected to a nucleophilic substitution reaction to synthesize a product (1,1,1,3,3,4,4,5,5,5-decafluoro-2-trifluoromethylpent-2-yl)(aryl)sulfide. The application adopts a reaction strategy of efficient coupling of thiophenol and perfluoroalkyl, and can be used for preparing various fluorine-containing benzene sulfide compounds.

The present invention relates to a method for enhancing the photooxidative coupling reaction of 4-aminothiophenol and its application, the method comprising: adding 4-nitrothiophenol to the photocatalytic oxidative coupling reaction system of 4-aminothiophenol, performing a catalytic reaction under the mediation of 4-nitrothiophenol, and oxidizing 4-aminothiophenol to 4,4'-dimercaptoazobenzene. The present invention proposes for the first time to enhance the photooxidative coupling reaction of 4-aminothiophenol by the mediation of 4-nitrothiophenol, which can be judged by the phenomenon that the Raman characteristic peak intensity of the photooxidative coupling product 4,4'-dimercaptoazobenzene is significantly enhanced, and it is found that the Raman characteristic peak intensity under the method is significantly greater than the linear sum of the characteristic Raman peak intensities of 4,4'-dimercaptoazobenzene detected by the catalytic reaction of two thiophenols alone. The method provides a new idea for enhancing and regulating the photooxidative coupling of 4-aminothiophenol.

The application discloses a preparation method of a key intermediate of dapagliflozin, and belongs to the technical field of preparation of medical intermediates. The preparation method of the key intermediate of dapagliflozin comprises the following steps: 1, 1-ethoxy-4-methylbenzene is prepared by using p-cresol, sodium hydroxide and diethyl sulfate; 2, (4-ethoxybenzyl) phenyl sulfide is prepared by using 1-ethoxy-4-methylbenzene, thiophenol, a palladium catalyst, an alkali and an oxidant; 3, 1-benzyl-4-ethoxybenzene is prepared by using (4-ethoxybenzyl) phenyl sulfide under a hydrogen atmosphere; 4, 4-ethoxy-2'-chlorobenzhydrol is prepared by carrying out chlorination reaction on 1-benzyl-4-ethoxybenzene; and 5, 5-bromo-2-chloro-4'-ethoxybenzhydrol is prepared by carrying out bromination reaction on 4-ethoxy-2'-chlorobenzhydrol. The yield and purity of 5-bromo-2-chloro-4'-ethoxybenzhydrol prepared by the method are higher, the process is safer, and the production cost is reduced.

The invention discloses a preparation method of an Elobixibat intermediate 2, 4-dibromo-5-methoxybenzene sulfonyl chloride (I), and belongs to the field of preparation of drug intermediates. The method comprises the following steps: oxidizing 3-methoxythiophenol serving as a raw material with hydrogen peroxide to generate a compound II, halogenating the compound II with bromine to generate a compound III, and finally oxidizing and chlorinating with zirconium chloride and hydrogen peroxide to generate the compound 2, 4-dibromo-5-methoxybenzenesulfonyl chloride (I). The preparation method of the intermediate compound III has the advantages of stable property, high yield, high purity, good product appearance, simple post-treatment, suitability for industrial production and the like.

This invention provides a polynuclear metal cluster based on salicylaldehyde acetal-2-thiophenol ligand, its preparation method, and its application. The chemical formula of the polynuclear metal cluster is Co4(C 13 H9NOS)6·2CH3CN·CH3OH, where C 13 H9NOS is salicylaldehyde acetal-2-thiophenol, with Co forming a six-coordinate octahedral configuration with N, O, and S. The salicylaldehyde acetal-2-thiophenol ligand in the polynuclear metal cluster of this invention can effectively stabilize the active center of metallic cobalt, resulting in a polynuclear metal cluster with significant OER activity and broad prospects for practical applications.

The invention discloses a benzothiazole-tetraphenyl ethylene derivative as well as a preparation method and anti-counterfeiting application thereof, 4-(1, 2, 2-triphenyl vinyl) acetophenone and o-aminothiophenol are reacted in dimethyl sulfoxide by taking I2 as a catalyst, and after the reaction is finished, separation and purification are performed to obtain a compound molecule 1-1. And 2, carrying out heating reaction on the obtained compound 1-1 and malononitrile under the action of alkali and a solvent, and separating and purifying to obtain a compound 1-2. The compound disclosed by the invention is low in preparation cost, simple and convenient to operate and simple in method, the compound shows fluorescence characteristics and can be applied to the fields of printing and dyeing, printing ink, cosmetics and the like, and meanwhile, the synthesis method can be used for synthesis in the fields of fine organic chemical engineering such as luminescent materials and trace detection technologies.

The invention discloses a method for efficiently preparing benzo [e] [1, 2, 3] oxathiazide 2, 2-dioxide derivatives with various structures by catalyzing aromatic benzo [e] [1, 2, 3] oxathiazide 2, 2-dioxide and NHC catalytic oxidation cross dehydrogenation coupling of amine, alcohol, phenol, thiol and thiophenol through carbene, and is characterized in that benzo [e] [1, 2, 3] oxathiazide 2, 2-dioxide, a nucleophilic reagent, a carbene catalyst and alkali are used as raw materials for preparing the benzo [e] [1, 2, 3] oxathiazide 2, 2-dioxide derivatives with various structures. The preparation method comprises the following steps: putting benzo [e] [1, 2, 3] oxathiazide 2, 2-dioxide as a raw material, an oxidant and a solvent in an air atmosphere, reacting at room temperature or under a heating condition, removing the solvent in vacuum to obtain a coarse material, and performing silica gel column chromatography purification on the coarse material to obtain the target compound benzo [e] [1, 2, 3] oxathiazide 2, 2-dioxide derivative. The reaction is carried out under extremely mild conditions, the substrate range is wide, and the tolerance of functional groups is good. In addition, the biological activity research of the target compound shows that the compound has the potential of being developed into an effective antifungal agent for crop protection. The compound can be used as a potential candidate drug for inhibiting phytopathogen fungi, and has good research and development value.

The invention discloses a surface-enhanced Raman probe as well as preparation and application thereof. The surface-enhanced Raman probe comprises a silver nanorod and a 4-amino thiophenol molecular layer adsorbed on the surface of the silver nanorod, pATP molecules and the surface of the silver nanorod form an Ag-S bond through sulfydryl (-SH) to form AgNRs (at) PATP, the two AgNRs (at) PATP molecules easily form a corresponding azo compound DMAB, and a pi-pi conjugated structure between the DMAB and nitro explosive molecules can effectively promote electron transfer, combine into AgNRs (at) PATP (at) TNT and generate a hot spot signal, so that a Raman signal is enhanced, the detection limit is reduced, the accuracy is high, and the method is suitable for industrial production. The trace detection of the nitro explosives is realized.

The invention belongs to the technical field of biological medicines, and particularly relates to a thiophenol compound as well as a preparation method and application thereof. The prepared thiophenol compound is applied to human kidney cells HK-2 and living mice, it is found that the compound can remarkably inhibit peroxidation of cell membrane lipid molecules induced by hypoxia-reoxygenation and further induce cell ferroptosis, and the thiophenol compound has a long-term stable inhibition effect. By pretreating the compound, the levels of creatinine and urea nitrogen in serum after kidney injury can be remarkably reduced, which indicates that the compound can relieve acute kidney injury. Besides, the compound prepared by the invention is used for pretreatment, so that kidney external marrow region injury caused by ischemia-reperfusion is remarkably relieved, lesions such as renal tubular epithelial cell necrosis and the like are effectively relieved, and a new treatment strategy is provided for ferroptosis inhibitors when the compound is applied to kidney ischemia-reperfusion injury repair.

The present application relates to the fine chemical technology field, specifically to a kind of preparation of bis (4-tolyl sulfenyl) di-deuteromethane method.The domestic research and synthesis of bis (4-tolyl sulfenyl) di-deuteromethane are less reported, only a few foreign literatures provide corresponding preparation method.Aiming at the above problems, the present application provides a kind of preparation of bis (4-tolyl sulfenyl) di-deuteromethane method, the present application is reacted by 4-methyl phenyl sulfenol and 1-(chloro di-deuteromethyl)-1,4-diazabicyclo [2.2.2] octane-1-ammonium chloride in the acetonitrile solution containing HI, bis (4-tolyl sulfenyl) di-deuteromethane is successfully prepared, the synthetic route of the present application is simple and efficient, raw material is easy to obtain, and has good commercial value.

The invention belongs to the field of superoxide anion free radical detection, and particularly relates to a reversible fluorescent probe for detecting superoxide anion free radicals as well as a synthesis method and application of the reversible fluorescent probe. The fluorescent reversible probe is 3-(benzothiazole-2-yl)-[1, 1 '-biphenyl]-2, 3', 4 '-triphenol. The preparation method comprises the following steps: dissolving 3-bromo-2-hydroxybenzaldehyde in absolute ethyl alcohol, adding sodium hydrogen sulfite and o-aminothiophenol, and carrying out heating reflux reaction; dissolving a reaction product and 3, 4-dimethoxyphenylboronic acid in tetrahydrofuran, adding a potassium carbonate solution and tetrakis (triphenylphosphine) palladium, and carrying out heating reflux reaction; and dissolving the product obtained by the reaction in dichloromethane to completely dissolve the solid, adding boron tribromide, and reacting under the ice salt bath condition to obtain the target probe. The fluorescent reversible probe can be used for superoxide anion free radical detection, and the detection method is simple, convenient to operate, good in selectivity, high in sensitivity, long in emission wavelength, large in Stokes shift and high in signal-to-noise ratio.

The present invention belongs to the field of biomedicine technology, and in particular to a thiophenol compound and its preparation method and application. The present invention uses the prepared thiophenol compound for human kidney cells HK-2 and live mice, and finds that the above-mentioned compound can significantly inhibit the peroxidation of cell membrane lipid molecules induced by hypoxia-reoxygenation, and then induces cell ferroptosis, and has a long-term stable inhibitory effect. The levels of creatinine and urea nitrogen in serum after kidney damage can be significantly reduced by pre-treating the compound, indicating that it can alleviate acute kidney injury. In addition, the compound pre-treatment prepared by the present invention significantly reduces the damage to the outer medullary region of the kidney caused by ischemia-reperfusion, and effectively alleviates lesions such as renal tubular epithelial cell necrosis, and its application in the repair of renal ischemia-reperfusion injury provides a new treatment strategy for ferroptosis inhibitors.

The application belongs to the technical field of biological medicine, and discloses a synthesis method of aryl F-18 labeled sulfuryl chloride and application of the aryl F-18 labeled sulfuryl chloride in amine compound labeling. The method takes thiophenol derivative as a labeling precursor, obtains F-18 labeled thiophenol intermediate through photocatalytic aryl F-18 fluorination reaction, and then obtains aryl F-18 labeled sulfuryl chloride through N-chlorosuccinimide oxidation chlorination. The obtained aryl F-18 labeled sulfuryl chloride (4-[ 18 F] fluorobenzenesulfonyl chloride) can occur sulfurylization reaction with various amine compounds at room temperature, and the radiochemical conversion rate is as high as 98%. The application is successfully applied to novel synthesis of AMPA receptor PET imaging agent[ 18 F]2 (the conversion rate is 96%, which is much higher than 13% reported in the literature). The application has the advantages of mild reaction condition, high conversion rate and wide substrate application range, and provides an efficient method for innovative preparation of F-18 labeled PET probes.

The invention relates to the field of rubber materials, and particularly discloses a golf ball inner core material, a preparation method thereof and a high-elasticity golf ball. The invention discloses an inner core material of a golf ball. The inner core material comprises the following raw materials in parts by weight: 100 parts of butadiene rubber, 25-30 parts of zinc acrylate, 0.5-1.5 parts of a vulcanizing agent, 4-8 parts of zinc stearate, 0.4-0.8 part of pentachlorothiophenol, 4-8 parts of zinc oxide and 15-20 parts of filler. The golf ball inner core material has the advantages of being good in rebound resilience and good in hitting resistance, the service life can be prolonged, and a better ball hitting feeling can be brought.

The invention relates to a method for adsorbing sulfydryl or thiophenol molecules on the surface of a platinum catalyst to enhance electro-catalysis formic acid oxidation and methanol oxidation, in particular to a method for enhancing formic acid and methanol electro-oxidation reaction by modifying a platinum electrode with cysteamine molecules to form a platinum-cysteamine heterogeneous interface, and belongs to the technical field of catalytic energy. According to the invention, mercaptan / thiophenol molecules represented by cysteamine (CYS) are modified on the surfaces of platinum nanoparticles through chemical adsorption, so that a molecule-metal composite catalytic system with an optimized electronic structure is constructed. X-ray photoelectron spectroscopy, in-situ Raman spectroscopy and theoretical calculation prove that the catalytic performance of surface adsorption molecules is remarkably improved through a dual-action mechanism, on one hand, the electronic structure of platinum is regulated and controlled to reduce a reaction energy barrier, on the other hand, interface charge transfer kinetics is promoted, and the oxidation process of formic acid through a formate path is effectively optimized. The technical scheme has universality to various mercaptan / thiophenol molecular systems, and the strategy can also be used for improving the performance of methanol oxidation reaction. The invention provides a novel catalytic material system for developing efficient direct formic acid and methanol fuel cells, and has important application value in the field of clean energy conversion devices.

The invention discloses a thiophenol-heptamethine cyanine dye derivative as well as self-assembled nanoparticles, a preparation method and application thereof. The derivative is a thiophenol-heptamethine cyanine dye monomer derivative or a 1, 3, 5-benzene trithiophenol-heptamethine cyanine dye triad derivative; the thiophenol or the 1, 3, 5-benzene trithiophenol is connected with a meso-carbon atom of the heptamethine cyanine dye through a sulfur atom, and the heptamethine cyanine dye is formed by connecting two nitrogen-containing heterocyclic ring units through a conjugated methine chain; the nanoparticles are obtained by dropwise adding a derivative solution into water and then removing an organic solvent. The synthesis method of the thiophenol-cyanine dye derivative is simple and easy to implement, stable nanoparticles can be formed, the tumor targeting property can be improved, the aggregation effect far better than that driven by traditional weak interaction is achieved, synchronous optimization of high tumor accumulation and extremely high heat production efficiency is successfully achieved through self-assembly of nanoparticles, and the thiophenol-cyanine dye derivative has good application prospects. An innovative strategy is provided for the development of a high-performance tumor photo-thermal reagent.

The invention discloses an efficient and simple synthesis method of a dibenzotetrathiafulvalene derivative, which is characterized in that benzene-1, 2-thiophenol or a derivative of benzene-1, 2-thiophenol is subjected to dimerization in a solvent containing acetic acid under a solvothermal reaction condition to obtain the dibenzotetrathiafulvalene or the derivative of dibenzotetrathiafulvalene. The solvothermal reaction conditions are mild, the operation is simple, and the method is suitable for large-scale preparation and environment-friendly. No toxic by-product is generated in the reaction, the reaction product does not need to be purified, the high-purity crystal compound can be obtained, the product efficiency is improved, and the selectivity is guaranteed.

The invention discloses a green light-emitting diode device and a preparation method thereof. FAPbBr3 perovskite nanocrystals are synthesized by a ligand-assisted reprecipitation method, wherein FABr and PbBr2 serve as FA sources, Pb sources, and Br sources, chloroform serves as an antisolvent, and acetonitrile serves as a reaction quencher. The green light-emitting diode device comprises a substrate printed with an anode, a hole transport layer, a hole injection layer, a light-emitting layer, a first electron transport layer, a second electron transport layer, and a cathode, which are arranged in sequence from bottom to top. By adding thiophenol as a new organic ligand to acetonitrile to replace part of the traditional ligand, the surface defects of the material are significantly passivated, thereby improving the photoluminescence quantum yield of the material and the photoelectric performance of the LED prepared from the material. Unlike traditional ligands, thiophenol does not contain a long alkyl chain but has a benzene ring with better conductivity, so the electrical performance of the LED prepared using the thiophenol is also improved. In addition, it can be proved that the introduction of thiophenol does not affect the emission wavelength of the LED.

The present invention belongs to the technical field of organic synthesis, and particularly relates to a method for synthesizing thiosemicarbazone compounds. The method for synthesizing thiosemicarbazone compounds uses (isocyanimino) triphenylphosphine and one of thiophenol substances, thiol substances, and disulfide substances as reactants, and uses methanol or a mixed solution of methanol and water as a solvent for reaction. After separation and purification, thiosemicarbazone compounds are obtained. The synthesis method of the present invention has mild conditions, does not require additional metals and additives, the product is easy to separate and has a high yield, and the reaction is green and efficient.