348 results about "Suzuki reaction" patented technology

The invention belongs to the technical field of photoelectric materials, and particularly relates to luminescent materials based on thioxanthene-fluorene spiral structures and organic photoelectric devices adopting the materials as luminescent layers. The luminescent materials adopts the thioxanthene-fluorene spiral structures as skeleton units. Intermediates are prepared through Ullmann reactions, and then the target compounds are obtained through Ullmann reactions or Suzuki reactions. The materials are single in structure and definite in molecular weight. The spiral structures of the materials can adjust an intermolecular accumulation manner, thus effectively inhibiting exciplex luminescence. The materials have deep meaning for development of high-effect devices. The organic photoelectric devices adopting the materials as the luminescent layers have good luminescent properties and can be used for small organic molecule light emitting diodes.

The invention discloses an aggregation-induced emission molecule as well as a preparation method and use thereof. The aggregation-induced emission molecule has a structural formula (shown in the description), wherein when Ar1 and Ar2 are same groups, Ar2 is a group shown in the description; and when Ar2 is hydrogen, Ar1 is a group shown in the description. The preparation method comprises the steps of: starting from a group shown in the description, wherein X=br, and Y=H or X=H, and Y=Br and tetraphenyl ethylene boric acid ester, obtaining derivatives of fluorene containing toluene and triphenylamine units by utilizing an acid-induced intramolecular dehydration reaction, linking tetraphenyl ethylene to a ninth site of the fluorine in a conjugated manner by utilizing a Suzuki reaction, and finally obtaining a target compound. According to the compound disclosed by the invention, the heat stability and the aggregation-induced emission property are good, the solid fluorescence quanta of the compound are high in yield and are emitted by blue lights, and the compound can be applied to a luminescent layer material of a blue-light inorganic light emitting diode; and the reaction conditions of the preparation method are mild, and the yield is high.

The invention discloses a novel diamine compound, and a preparation method and an application thereof. The preparation method of the novel functional diamine compound comprises the following steps: a large conjugate structure comprising benzophenone carbonyl group is obtained; the ketone carbonyl group is subjected to a Wittig or Wittig-Horner reaction, such that a large conjugate system with a triphenylethylene / tetraphenylethylene structure and comprising a halogen atom is obtained; the halogen atom is further subjected to a Suzuki reaction or a plurality steps of reactions, such that a monoamine compound comprising a triphenylethylene / tetraphenylethylene large conjugate system is obtained; the monoamine compound is subjected to a reaction with halogenated nitrobenzene, such that a dinitro monomer comprising triphenylamine and the triphenylethylene / tetraphenylethylene large conjugate system is obtained; and the dinitro monomer is reduced into the novel diamine compound, such that the novel functional diamine compound comprising triphenylamine and a triphenylethylene / tetraphenylethylene structure is obtained. The synthesis method provided by the invention is simple. Purification is easy. The method is suitable for industrial productions. The synthesized diamine compound has a significant aggregation-induced emission property, and can be used for synthesizing high-performance and functional polymers such as polyamide, polyimide, polyamideimide, polyesterimide, and the like.

The invention relates to a method for preparing an oxazolidinone compound and an intermediate thereof. Specifically, two fragments are coupled to prepare the oxazolidinone compound by virtue of Suzuki reaction. The method is simple in process, short in reaction time and high in yield and is suitable for industrial production. Furthermore, the method for preparing the intermediate of the oxazolidinone compound has the advantages of simplicity in operation, high yield and low cost.

The invention discloses a fluorine-containing functional diamine monomer with a large conjugated structure as well as a synthesis method and an application thereof. The synthesis method comprises the following steps of: firstly allowing di-halogenated fluorine to react with halogenated nitrobenzene, linking halogen atoms with other chemical groups to form a large conjugated system, and finally reducing binitro into diamine; or firstly carrying out a chemical coupling reaction between two active hydrogen atoms in fluorine to form the large conjugated structure, carrying out a Suzuki reaction on the large conjugated structure and two halogen atoms to obtain the diamine, and finally obtaining the novel fluorine-containing functional diamine monomer. By means of the specific structure of the diamine monomer, the polymer obtained by the diamine monomer has the advantage of good solubility, and the diamine monomer and the polymer can also achieve certain photoelectric properties; and the synthesis method has the advantages of simple process and easy purification procedure, thus being applicable to industrial production. The fluorine-containing functional diamine monomer has obvious characteristics of luminescence aggregation and induction, thus the diamine monomer can be used for synthesizing high-performance functional polymers such as polyamide, polyimide, polyamideimide, polyesterimide and the like.

The invention discloses a diamine monomer containing a carbazole structure and having a high planarity, a synthetic method and an application thereof. In the method, the diamine is directly prepared from dihalogenated carbazole through ammoniation by liquid ammonia; or is directly prepared through a Suzuki reaction; or is directly prepared by performing cyanidation, hydrolysis and acylating chlorination to the dihalogenated carbazole to synthesize diacyl chlorocarbazole and then performing a reaction to the diacyl chlorocarbazole with a hydroxyl group or an amino group to form an ester bond or an amido bond; or is prepared by performing a Ullmann coupling reaction with the halogen atoms in the dihalogenated carbazole to form an ether bond, secondary amine or the like and finally reducing the dinitro group. The diamine synthetic process is simple, is simple in purification and is suitable for industrial production. A minimum energy state 3D molecular structure of the diamine monomer is high in planarity so that the diamine monomer can be used for preparing a high barrier polymer which is strong in interaction force among molecular chains and is small in free volume. The diamine monomer can be used for preparing high-performance and functionalized polyamides, polyimides, polyamideimides, polyesterimides and such polymers.

The invention relates to a Pd @MIL-101 composite and a preparation method and application thereof. According to the adopted technical scheme, palladium chloride is added to methyl alcohol while sodium chloride is added, ultrasonic dispersion is conducted, stirring is conducted for 10-20 hours, and sodium tetrachloropalladate is obtained; a sodium tetrachloropalladate solution is dropwise added into MIL-101 crystals slowly, pd<2+>@MIL-101 is obtained; a methanol solution of asaturated sodium borohydride is added to the pd<2+>@MIL-101, reduction is conducted under the condition of ice-water bath, and the Pd @MIL-101 composite is obtained. The synthesized Pd @MIL-101 composite has special selectivity catalytic activity for phenylboronic acid and 1,4-dibromo-benzene in a suzuki reaction, and the yield of an intermediate product 4-bromobiphenyl is effectively raised.

The invention discloses a palladium nano-composite catalyst loaded by N-doped three-dimensional graphene and a preparing method and application thereof. The method includes the steps that a formaldehyde solution and a nitrogen source are added into an oxidized graphene solution, a N-doped three-dimensional graphene composite material is prepared through a hydrothermal method, then a H2PdCl4 solution and a reducing agent are added to obtain the palladium nano-composite catalyst loaded by N-doped three-dimensional graphene, a carrier of the catalyst is graphene of a N-doped three-dimensional structure, loaded active ingredients are palladium nano particles, the loading capacity of the Pd nano particles accounts for 5-15% of the total mass of the catalyst, and the particle size is 5-10 nm. The palladium nano-composite catalyst loaded by N-doped three-dimensional graphene is applied to a Suzuki reaction of halogeno benzene and phenylboronic acid and shows high catalytic activity and high reusability.

The invention discloses a novel function diamine monomer containing carbazole and a large conjugated structure and a preparation method and application thereof. The novel function diamine monomer is started from a basic monomer element and obtained through a series of chemical reaction of helogenation reaction, Wittig-Horner reaction, UIImann reaction, Suzuki reaction and the like. A synthetic method of the novel function diamine monomer is simple in process, easy to purify and suitable for industrial production. The monomer has a large non-planar large conjugated structure, has the effect of aggregation-induced emission, and can be used for synthetizing high-performance functionalized polymers of polyamide, polyimide, polyamide-imide, polyester-imide and the like.

The invention discloses a novel functional triamine monomer containing a carbazole structure and a preparation method and application thereof. Starting from carbazole, the novel functional triamine monomer containing carbazole is prepared through a nitration reaction, a Ullmann coupling reaction, a reduction reaction and other reactions; or starting from mono-halogenated carbazole or dihalogenated carbazole, the novel functional triamine monomer containing carbazole is prepared through a Ullmann coupling reaction, a Suzuki reaction, a reduction reaction and other reactions. The novel functional triamine monomer containing carbazole is simple in synthesis method and technology, high in yield and easy to purify, and therefore the novel functional triamine monomer containing carbazole is suitable for industrial production. The novel functional triamine monomer can be used for synthesizing hyperbranched and functional polyamide, polyimide, polyamide imide, polyester imide and other polymers.

The invention belongs to the technical field of nanometer material science and micro-fluidic chips, and relates to a preparation method of a paper chip modified based on fluorescent molecular imprinting silicon dioxide nanometer microspheres. The problem that the paper chip cannot achieve complex functional modification easily is solved. The preparation method comprises the steps that monodispersity silicon dioxide nanoparticles are prepared through a sol-gel method, and surface amidated modification is carried out on the silicon dioxide nanoparticles; fluorescent conjugated polymers having high selectivity and sensitivity for nitrobenzene are synthesized through an Suzuki reaction; the conjugated polymers are bonded through a covalent bond and crosslinked to the surfaces of the silicon dioxide nanoparticles to form the fluorescent molecular imprinting silicon dioxide nanometer microspheres; the fluorescent molecular imprinting silicon dioxide nanometer microspheres are evenly fixed to the surface of the detection area of the paper chip, and therefore the paper chip modified based on the fluorescent molecular imprinting silicon dioxide nanometer microspheres is obtained. Functional modification can be rapidly and easily carried out on the paper chip, and therefore high-sensitivity detection on micro nitrobenzene in water is achieved.

The invention discloses a supported palladium catalyst Fe3O4 / SiO2 / Pd for Suzuki reaction, and a preparation method of the supported palladium catalyst Fe3O4 / SiO2 / Pd. The compound is a supported palladium catalyst material containing Fe3O4 / SiO2 / Pd, obtained by composite reaction of a precursor-based Fe3O4 / SiO2 composite particles and Pd; the supported palladium catalyst Fe3O4 / SiO2 / Pd has the molecular characteristics that the compound structure contains a magnetic nanometer material Fe3O4 and porous absorption materials SiO2 and Pd; the supported palladium catalyst has relatively good magnetism, is easy to recover and reuse, and is a relatively ideal material as the supported palladium catalyst. The supported palladium catalyst is simple in synthesis route, mild in reaction condition, relatively high in yield and convenient to apply; post-treatment is simple; meanwhile, a secondary resource generated in biological mineral separation preparation and simulation and coal biological desulphurization by adopting thiobacillus ferrooxidans as a raw material; and a reference is provided for a comprehensive utilization technology of developing a metallurgical tail liquid or a desulphurization waste solution.

The invention discloses a preparation method for tedizolid as shown in a formula IV. According to the method, tedizolid is prepared through chemical combination of a compound as shown in a formula I and a compound as shown in a formula II via a coupling reaction; and tedizolid phosphate with medical purposes can be prepared by subjecting the obtained tedizolid to esterification by phosphate. The preparation method has the advantages of milder reaction conditions, a few produced impurities and simple post-treatment. According to the invention, the reaction mechanism of Suzuki-Miyaura coupling is employed to connect boric acid as shown in the formula I and derivatives thereof with the compound as shown in the formula II, so reaction selectivity is high, a few impurities are produced, and a synthetic ratio is more than 90%; and oxazolidinone borate is used to react with tetrazole, so conditions are milder, and the generation rate of impurities is lower.

The invention belongs to the technical field of electron transport materials and discloses an organic micro-molecular electron transport material and preparation thereof, and an n-doped electron transport layer and application thereof. The organic micro-molecular electron transport material has a structure shown as the formula I. The preparation method of the organic micro-molecular electron transport material comprises (1) subjecting 2-chloro-4, 6-diphenyl-1, 3, 5-triazine and 3-bromo-phenylboronic acid to coupling reaction, and then performing subsequent processing to obtain a bromine-containing intermediate; (2) subjecting the bromine-containing intermediate and bis-(pinacolato)-diboron to Suzuki reaction and then performing subsequent processing to obtain a borate intermediate; (3) subjecting the borate intermediate and 3-bromo-1, 10-phenanthroline to coupling reaction and performing subsequent processing to obtain the organic micro-molecular electron transport material. The organic micro-molecular electron transport material is simple in structure and high in thermostability and topographic stability; when n-doped, the organic micro-molecular electron transport material can beprepared into the n-doped electron transport layer, which achieves high luminous efficiency and stability when applied to organic electroluminescence devices.

The invention discloses a metal organic frame / graphene carried palladium nano-composite catalyst and a preparing method and application thereof. Firstly, anhydrous zirconium tetrachloride, terephthalic acid and N,N-diamide are added in a graphene oxide solution to prepare a metal organic frame / graphene composite; secondly, normal hexane, an H2PdCl4 solution and a reducing agent are added to obtain the metal organic frame / graphene carried palladium nano-composite catalyst, wherein a carrier of the catalyst is composed of the metal organic frame and graphene, palladium nano-particles serve as carried active components, the carrying quantity of the palladium nano-particles accounts for 1-10% of the total mass of the catalyst, and the particle size ranges from 10 nm to 20 nm. The metal organic frame / graphene carried palladium nano-composite catalyst shows high catalytic activity and good reuse performance when applied to a Suzuki reaction of halogeno benzene and phenylboronic acid.

The invention relates to a synthesis method of 2,2'-diaryl-4,4',5,5'-biphenyl tetraacid dianhydride monomer, which comprises the following steps of: firstly reacting 3,3',4,4'-biphenyl tetraacid dianhydride as a raw material with aliphatic amine to generate 3,3',4,4'-biphenyl diimide; then reacting the 3,3',4,4'-biphenyl diimide with I2 / KIO3 under concentrated acid conditions to generate 2,2'-diiodo-4,4',5,5'-biphenyl diimide; furthermore, converting the biphenyl diimide to 2,2'-diiodo-4,4',5,5'-biphenyl tetraester; then carrying out Suzuki reaction on the 2,2'-diiodo-4,4',5,5'-biphenyl tetraester and large conjugated arylboronic acid to obtain 2,2'-diaryl-4,4',5,5'-biphenyl tetraester containing the large conjugated arylboronic acid; and finally hydrolyzing, acidifying and dehydrating the 2,2'-diaryl-4,4',5,5'-biphenyl tetraester to obtain the 2,2'-diaryl-4,4',5,5'-biphenyl tetraacid dianhydride.

The invention discloses a ridge-ground shatan ester and making method of prosoma compound, wherein the prosoma compound is 2-ethoxy-1-[[2'-(1-R-tetrazole-5-base) [1, 1'-biphenyl]-4-base] methyl]-1H-benzimidazole-7- carboxyl acid1-(cyclohexaoxy carbonyloxygen) carbethoxy (III), which is reacted by 2-ethoxy-1-(4'-halogenated phenyl) methyl-1H-benzimidazole-7-carboxyl acid1-[[(cyclohexaoxy) carbonyl] oxygen] carbethoxy (I) and 2-(1-R-1H-tetrazoline-5-base) borophenylic acid or 2-(1-R-1H-tetrazoline-5-base) borophenylic acid ester (II) in the organic dielectric and catalyst allowed by Suzuki reaction under soluble alkaline compound condition; hydrolyzing the prosoma compound under acid condition to obtain the medical product.

The invention belongs to the technical field of photoelectric material, and concretely relates to a benzene-substituted phenothiazine unit-based luminescent material, an intermediate thereof and an organic photoelectric device made by the luminescent material. The luminescent material takes phenothiazine as an initial reaction raw material, the intermediate is prepared through an Ullmann reaction, and a target compound is obtained through the Ullmann reaction or a Suzuki reaction. The material has the advantages of single structure and definite molecular weight; has high decomposition temperature and low sublimation temperature, and the luminescent material with high purity cab can be easily obtained through sublimation. The material has good luminescence performance as a luminescent layer of the organic photoelectric device and can be used for an organic micromolecule light emitting diode.

The invention discloses functional diamine monomers having high planarity and containing a naphthaline structure and a synthesis method and application thereof. The novel functional diamine monomers are prepared from raw materials monomers such as dihalogenated naphthaline, naphthalic acid, naphthalenediol or naphthylenediamine through a series of chemical reactions such as substitution reaction, Suzuki reaction, amidation reaction, esterification reaction, Grignard reaction, Kumada coupling reaction. The diamine monomers containing a naphthaline structure, which have a lowest energy state 3D molecular structure and have high planarity, can be obtained. Due to planar space structure, the diamine monomers disclosed by the invention can serve as monomers used for preparing polymers with strong molecular chain interaction force, tight molecular chain packing and small free volume and the polymers can be endowed with an excellent barrier property. The synthesis method of the diamine monomers is simple in process and purification operation is easy; therefore, the synthesis method is suitable for industrial production. The diamine monomers disclosed by the invention can be used for synthesizing functional polymers such as polyamide, polyimide, polyamide-imide and polyester-imide.

The invention relates to the organic semiconductor field, and provides a fluorene based sulfonic acid type water / alcohol-soluble conjugated polymer and a preparation method thereof. The method comprises the following steps: reacting 2,7-dibromofluorene with an alpha, beta-unsaturated carbonyl compound under an alkaline condition to generate a sulfonic acid-containing dibromofluorene monomer; and carrying out a Suzuki reaction of the sulfonic acid-containing dibromofluorene monomer, a monomer with two ends having bromo groups and a monomer with two ends having different structures of borates under a weakly alkaline condition to synthesize the sulfonic acid-containing conjugated polymer. The sulfonate-containing functional monomer is synthesized through the above one step method, and the sulfonic acid monomer participating in the above reaction is cheap and can be easily obtained; and the polymer synthesis method has the advantages of simplicity, air insulation, no need of water insulation, and implementation of the reaction only through heating to 85-90DEG C.

The invention relates to a preparation method of Lapatinib. The method comprises the steps of carrying out condensation, cyclization, reduction, addition, twice Suzuki reaction, deprotection, addition, condensation, Boc protection removal and salification reaction on 2-amino-5-bromobenzylcyanide and 5-bromo furan-2-carboxylic acid methyl ester as starting raw materials to obtain Lapatinib. The method is easily available in starting raw materials, simple in process operation and mild in reaction conditions and does not need specific reaction equipment; in the preparation process, no compounds difficult to separate exist, and the obtained intermediates and finished product can be obtained by recrystallization; and the method is suitable for industrialized amplification production.

The invention discloses a water-soluble aggregation-induced emission quinoxaline compound, a preparation method thereof and an application of the compound. According to the method, 1, 4-dibromo-2, 3-diaminobenzene and o-diketone with an equal molar weight react to obtain 1, 4-dibromo-quinoxaline, the 1, 4-dibromo-quinoxaline is sequentially subjected to Suzuki reaction with triphenyl ethylene boric acid ester and pyridine boronic acid to obtain a quinoxaline neutral compound containing triphenylethylene and pyridine components, and the quinoxaline neutral compound further reacts with a nucleophilic reagent containing active methylene to obtain the pyridinium salt functionalized water-soluble aggregation-induced emission quinoxaline compound. The prepared water-soluble aggregation-induced emission quinoxaline compound can be dissolved in mixed solvents of water / organic solvents with the water volume percent content of 95%-60%. The compound has excellent aggregation-induced emission performance and water solubility and can be used as a fluorescent probe and a solid light-emitting material.

The invention discloses a magnetic palladium composite catalyst, and a preparation method and a use thereof. The magnetic palladium composite catalyst adopts superparamagnetic Fe3O4@SiO2 microspheres as a carrier, the surface is covalently modified with supported amino Pd (II) particles, and the catalyst is obtained through the steps of sequentially preparing Fe3O4 nanoparticles, preparing core-shell structured magnetic nanometer microspheres Fe3O4@SiO2 and preparing a Fe3O4@SiO2 supported amino ligand. The magnetic amino palladium composite catalyst can be applied in a Suzuki reaction, can realize approaching equal conversion of halobenzene with an electron donating group or an electron withdrawing group, and has unobvious decreasing activity after the catalyst is continuously used 5 times due to no obvious decrease of the supported amount of an active ingredient.

The invention discloses a covalent organic framework material loaded Pd catalyst and a preparation method and application thereof. The covalent organic framework material loaded Pd catalyst comprisesa covalent organic framework material and Pd2+ loaded on the covalent organic framework material. The preparation method comprises the following steps: 1) mixing an aldehyde precursor, an amine precursor and absolute ethyl alcohol, carrying out aldehyde-amine condensation reaction, and separating and purifying the product to obtain a covalent organic framework material; and 2) mixing the covalentorganic framework material, soluble Pd salt and dichloromethane, carrying out impregnation loading, and separating and purifying the product. The covalent organic framework material loaded Pd catalystdisclosed by the invention has the advantages of high catalytic activity, good selectivity, the wide substrate application range, easiness in recycling, mild reaction conditions, the green and environment-friendly reaction solvent and the like when being used for Suzuki reaction, and is simple in preparation process, easily available in raw materials, low in production cost and the like.

The invention discloses a method for preparing high-purity 9-allyl-10-hydroxycamptothecine (compound 1). The method comprises the following steps of: (1) reacting 10-hydroxycamptothecine with a halogenated reagent to obtain 9-bromine-10-hydroxycamptothecine and 9-iodine-10-hydroxycamptothecine; (2) protecting 10-position hydroxyl; (3) introducing a Suzuki reaction into the allyl; and (4) removing the protective group to obtain the compound 1. The product has the characteristics of high purity and capability of meeting the clinical requirement.

The invention belongs to the field of medicine synthesis and specifically relates to a preparation method of an anidulafungin side chain intermediate 4'-orthopentyloxy-1,1':4',1'-terphenyl-4-carboxylic acid. The preparation method comprises the following steps: initiating a 1,4-dibromo-benzene material which serves as a starting material to carry out Grignard reagent reaction with magnesium by iodine; then, preparing 1,4-benzene hypoboric acid by virtue of addition and hydrolysis with trimethyl borate; and preparing 4'-orthopentyloxy-1,1':4',1'- terphenyl-ethyl carboxylate by virtue of Suzuki reaction of 1,4-benzene hypoboric acid, 4-pentyloxy bromobenzene and 4-halogenated ethyl benzoate in dioxane-ethanol liquor under catalysis of [1,1'-bis(diphenyl phosphino) ferrocene] palladium dichloride, and then, hydrolyzing to obtain a target product. The preparation method disclosed by the invention can lower process cost, is simple, convenient, safe and reliable to operate, and suitable for industrial production.

The invention discloses a structure and a preparation method of a truxene-based star-like compound (TBP-C60). The preparation method is implemented by the following steps: by taking 7,12-dibromo-truxene-aldehyde derivative as a raw material and taking tetrahydrofuran as a solvent, performing Suzuki reaction on the raw material, the solvent and a BODIPY borate derivative under the catalysis action of tetra(triphenylphosphine) palladium, thus obtaining a truxene-BODIPY binary system compound TB; then by taking the TB and a porphyrin borate derivative as raw materials, performing reaction under the catalysis action of the tetra(triphenylphosphine) palladium, thus obtaining a BODIPY-truxene-porphyrin ternary system compound TBP; then performing cycloaddition reaction on the TBP, sarcosine and fullerene through 1,3-dipole, thus obtaining the star-like compound TBP-C60 in which the truxene is used as a core and the porphyrin, the BODIPY and the fullerene are used as arms. The preparation method of the star-like compound is simple, mild in reaction condition and easy and convenient to operate, shows excellent energy transfer efficiency and high heat stability and can be used for a light absorption antenna, a solar panel, light-simulated biological photosynthesis and other aspects.

The invention relates to a donor-acceptor compound light-emitting material based on a dicyanopyrazine and dicyanobenzopyrazine derivative, and an electroluminescent device for preparation, and belongsto the technical field of organic electroluminescence. According to the present invention, the dicyanopyrazine and dicyanobenzopyrazine derivative as the good electron acceptor nucleus can be linkedto different donor groups through a Suzuki reaction or Ullmann reaction to synthesize a series of electron donor-acceptor type organic small molecule light-emitting materials, wherein the materials have characteristics of large rigid planar skeleton, good thermal stability and high TADF fluorescence quantum yield, can achieve deep red light emission and near infrared light emission, are used for preparing deep red light and near infrared electroluminescent devices, and further have characteristics of simple synthesis, high yield, easy purification and the like. According to the present invention, the electroluminescent device has one or a plurality of light-emitting layers, and at least one layer of the light-emitting layer of the electroluminescent device contains one or a plurality of the compounds of the present invention, wherein further 0.1-100.0% by mass of the compound of the present invention is doped in the main body material so as to prepare the light emitting layer.

The invention discloses fluorine copolymer containing thiophene and pyrrole-pyrrole units and a preparation method as well as application thereof. The polymer is a compound which has a general formula shown in the specification, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are uniformly or differently expressed as H or C1-C20 alkyl groups; x and y meet the requirements that x+y is equal to 1, x is more than 0 and y is more than 0; and n is an integer of 1-200. The preparation method comprises the following step of: performing suzuki reaction on a dibromo product of a fluorine compound or a thiophene compound and a dibromo product of a pyrrole-pyrrole-dione compound serving as monomer raw materials to obtain the fluorine copolymer containing thiophene and pyrrole-pyrrole units. The fluorine copolymer containing thiophene and pyrrole-pyrrole units is used as an organic semiconductor material, and has the advantages of high matching degree with sunlight emission spectrum, capability of increasing photoelectric conversion efficiency, wide application, mild conditions of synthesis method and easiness in control.

The invention discloses an aggregation-induced light-emitting molecule based on tetraphenylethylenes and a preparation method and a use thereof. The aggregation-induced light-emitting molecule based on tetraphenylethylenes has a structure represented by the formula I or II. Through a Suzuki reaction, a pyrene nucleus is modified by applying four tetraphenylethylenes or derivatives thereof to obtain the target product. Pyrene and tetraphenylethylenes are in meta-position connection or methyl is added between pyrene and tetraphenylethylenes, to make a torsion angle between pyrene and tetraphenylethylenes increased, so that the degree of conjugation between pyrene and tetraphenylethylenes is reduced, and a spectrum is subjected to blue shift. The aggregation-induced light-emitting molecule based on tetraphenylethylenes has a good aggregation-induced light-emitting property, moreover, emits blue light, can be used as a blue-light organic light-emitting diode light-emitting layer material, and is simple in preparation.