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58 results about "Sonogashira coupling" patented technology

The Sonogashira reaction is a cross-coupling reaction used in organic synthesis to form carbon–carbon bonds. It employs a palladium catalyst as well as copper co-catalyst to form a carbon–carbon bond between a terminal alkyne and an aryl or vinyl halide.

Preparation method of BODIPY-based porous organic polymer and application of BODIPY-based porous organic polymer in photocatalytic production of hydrogen peroxide

The invention discloses a preparation method of a boron-dipyrrolyl porous organic polymer and application of the boron-dipyrrolyl porous organic polymer in photocatalytic production of hydrogen peroxide. The boron-dipyrrolyl porous organic polymer is a cyano-containing boron-dipyrrolyl porous organic polymer. The preparation method comprises the following steps: carrying out a Sonogashira coupling reaction on an electron acceptor boron dipyrromethene derivative and an electron donor compound to prepare a boron dipyrromethene-based porous organic polymer containing acetylenic bonds; and carrying out free radical reaction modification on the BODIPY porous organic polymer containing the acetylenic bond to prepare the BODIPY porous organic polymer containing the cyano group. The preparation method comprises the following steps: polymerizing an electron acceptor boron dipyrromethene and different electron donors by utilizing a Sonogashira coupling reaction to obtain a boron dipyrromethene-based porous organic polymer containing an acetylenic bond, and carrying out post-modification on the acetylenic bond through a free radical reaction to obtain the boron dipyrromethene-based porous organic polymer containing cyano groups with good photocatalytic performance. The polymer can be used for photocatalytic production of hydrogen peroxide in water.
Owner:LIANSHI (HUBEI) NEW MATERIAL CO LTD +1

Triphenylamine-based conjugated microporous polymer as well as preparation method and application thereof

The invention discloses a triphenylamine-based conjugated microporous polymer as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic semiconductor materials. The triphenylamine-based conjugated microporous polymer is prepared by taking triphenylamine biphenyl as a skeleton and an acetylenic bond as a connecting unit, respectively introducing pyrene, naphthalene, biphenyl or benzene, and synthesizing through a Sonogashira coupling reaction. Test results of the applicant show that the triphenylamine-based conjugated microporous polymer has high hydrogen evolution rate and good chemical stability and thermal stability during hydrogen production by photocatalytic decomposition of water.
Owner:GUANGXI UNIV FOR NATITIES

Hydrofluorine atom doped graphdiyne material and preparation method thereof

The invention discloses a hydrogen-fluorine atom doped graphdiyne material and a preparation method thereof, and relates to the technical field of carbon materials. According to the method, halogenated aromatic hydrocarbon and an alkynyl compound are taken as raw materials, a palladium catalyst and a copper catalyst are taken as a catalytic system, and an acetylenic bond of the alkynyl compound and the halogenated aromatic hydrocarbon are subjected to a Sonogashira coupling reaction to obtain the hydrogen-fluorine-doped graphite alkynyl material. The graphdiyne material provided by the invention has a large pore diameter, multiple active sites and high thermal stability and chemical stability, so that the hydrofluorine-doped graphdiyne material has excellent electrochemical energy storage property, shows reversible capacity of 1155mAh g <-1 > under 0.05 Ag <-1 > when being used as a negative electrode of a lithium ion battery, and can be used as a negative electrode of the lithium ion battery. And the density is almost 3 times that of a commercial graphite negative electrode material (300-350mAh g <-1 >). The application of the graphdiyne material in the field of electrochemical energy storage is obviously promoted.
Owner:BEIJING UNIV OF CHEM TECH

Preparation method and application of perylene covalent triazine framework material

The invention belongs to the technical field of photocatalysts, provides a structure, a preparation method and application of four novel organic polymer materials, and particularly relates to a preparation method and application of a perylene covalent triazine framework material. The preparation method mainly comprises the following steps: firstly, mixing monomers containing different functional groups and structures in different solvents, and synthesizing a polymer material through simple Sonogashira coupling reaction and Suzuki coupling reaction; secondly, performing Soxhlet extraction and purification on the four materials in a Soxhlet extractor to wash off impurities and unreacted monomers; according to the novel organic polymer material, triazine rings are introduced and form a more stable and prolonged D-A structure with pyrene and perylene functional group parts, intramolecular electron transfer of photon-generated carriers is promoted, compounding of the photon-generated carriers can be inhibited, and then the performance of the obtained material for photocatalytic water production of hydrogen peroxide is improved; meanwhile, the influence of introduction of different units on the performance of photocatalytic water production of hydrogen peroxide is compared.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Synthesis method of monobromo / dibromo pyridine derivative

PendingCN121159450AOrganic chemistryMethyl pyruvateOrganic synthesis
The invention discloses a synthesis method of a mono / dibromo pyridine derivative, which comprises the following steps: reacting a pyridine derivative with dimethyl butynedioate and methyl pyruvate at room temperature by using acetonitrile as a solvent to generate a dearomatized heteroaromatic compound; in an oxygen environment, copper bromide is used for brominating the dearomatized heteroaromatic compound to realize dibromination, and if potassium carbonate is additionally added in the reaction, monobromination is realized; and finally, respectively generating mono / dibromopyridine derivatives under hydrochloric acid hydrolysis. A carbon halogen bond of bromopyridine has very high activity, and various reactions such as Suzuki coupling, Sonogashira coupling, Heck reaction, amination reaction and the like can be carried out. On the basis, the polysubstituted bromopyridine can be subjected to selective reaction, and many new ideas can be provided for organic synthesis. The method disclosed by the invention is simple and safe to operate and environment-friendly, the cost is lower by using the copper bromide, and the required reaction conditions are simple.
Owner:NANJING UNIV OF SCI & TECH

Copper porphyrin conjugated acetylene polymer composite material, preparation method and application of copper porphyrin conjugated acetylene polymer composite material in photoelectric detection of biological mercaptan

The invention discloses a copper porphyrin conjugated acetylene polymer composite material, a preparation method and application of the copper porphyrin conjugated acetylene polymer composite material in biological mercaptan photoelectric detection, the composite material comprises an electrochemical reduction graphene oxide layer, a poly (1, 4-diacetylene benzene) layer and a copper porphyrin conjugated acetylene copolymer layer, and the three layers form a layered composite structure through pi-pi interaction. The copper porphyrin conjugated acetylene copolymer is formed by copolymerization of a 1, 4-diacetylene benzene monomer and a copper-coordinated 5, 10, 15, 20-tetra (4-acetylene phenyl) porphyrin monomer through a Sonogashira coupling reaction, and the composite material utilizes a double recognition site mechanism that a Cu-S coordinate bond is formed by a porphyrin center and sulfydryl and an acetylene bond and the sulfydryl are subjected to a click reaction under illumination. The high-sensitivity and high-selectivity detection on the L-cysteine and the reduced glutathione is realized, and the detection limit on the L-cysteine can reach 2.3 mu M.
Owner:NANJING COLLEGE OF CHEM TECH

A cross-linked cyclodextrin-based polymer and a preparation method and application thereof

This invention discloses a cross-linked cyclodextrin polymer, its preparation method, and its applications, belonging to the field of compound synthesis and separation enrichment technology. This invention employs a Sonogashira coupling reaction to react α, β, and γ cyclodextrins with 2-, 3-, or 6-position fully iodine-substituted cyclodextrins with polyalkynyl groups, respectively, to obtain cross-linked cyclodextrin polymers with large specific surface areas and numerous cyclodextrin cavities. These polymers exhibit good separation effects for organic dyes, small organic molecule pollutants, and harmful components in cigarette smoke.
Owner:KUNMING UNIV OF SCI & TECH

Water-soluble fluorescent conjugated polyelectrolyte, preparation method and application

The invention discloses a water-soluble fluorescent conjugated polyelectrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out Suzuki coupling reaction or Sonogashira coupling reaction polymerization on the synthesized 3, 6-diborate carbazole or 3, 6-diethynyl carbazole monomer, and then carrying out quaternization reaction to obtain the conjugated polyelectrolyte. The 3, 6-substituted carbazole is introduced into a polymer main chain to form a non-rigid structure, so that the solubility of the polymer in a solvent is improved, and the blue fluorescence quantum yield is increased; meanwhile, the trimethylamine quaternary ammonium salt side group not only enhances the water solubility, but also is used as a molecular recognition site to be combined with negative charges of heparin through electrostatic interaction; a fluorescent sensing system is formed after the conjugated polyelectrolyte is dissolved in a buffer solution, and the fluorescence intensity of the fluorescent sensing system is remarkably quenched and responded along with increase of the heparin concentration. The heparin quantification range can be flexibly adjusted by adjusting the concentration of the conjugated polyelectrolyte; the method is suitable for detection of common heparin and low-molecular-weight heparin and analysis of heparin in complex samples.
Owner:SUZHOU UNIV

Preparation method of 6-ethynyl pyrazolo [1, 5-a] pyridine

The invention discloses a preparation method of 6-ethynyl pyrazolo [1, 5-a] pyridine, which comprises the following steps: carrying out a sonogashira coupling reaction on 2, 5-dibromopyridine to obtain 2, 5-bis ((trimethylsilyl) ethynyl) pyridine; carrying out nitrogen amination reaction by using a nitrogen aminating agent, so as to obtain 1-amino-2, 5-bis ((trimethylsilyl) ethynyl) pyridine; and carrying out ring closing under the action of a catalyst, and carrying out a desilicication methyl reaction by using tetrabutylammonium fluoride to obtain the 6-ethynyl pyrazolo [1, 5-a] pyridine. According to the preparation method of the 6-ethynyl pyrazolo [1, 5-a] pyridine, low-cost raw materials are used, reaction conditions are easy to control, the reaction selectivity is high, byproducts are few, and the preparation method is suitable for large-scale production of the 6-ethynyl pyrazolo [1, 5-a] pyridine.
Owner:JIANGNAN UNIV

Preparation method and application of C60 material containing tetrazole olefinic bond

The invention belongs to the technical field of photovoltaic materials, and particularly relates to a preparation method and application of a C60 material containing tetrazole olefinic bonds. The preparation method of the C60 material containing the tetrazole olefinic bond comprises the following steps: (1) mixing tetrazole and halogenated olefin to obtain tetrazolyl halogenated olefin; and (2) mixing halogenated C60 and tetrazolyl halogenated olefin, and carrying out Sonogashira coupling reaction to obtain the C60 material containing the tetrazolyl olefin bond. The beneficial effects of the invention are that the C60 material containing tetrazole olefinic bonds is used as the electron transport layer, and in the P2 and P3 laser scribing process, dynamically broken tetrazole halide can be bonded with Pb ions in perovskite, thereby effectively self-repairing possible damage of laser scribing to the perovskite thin film, and improving the performance of the perovskite thin film. A laser scribing area is well protected; meanwhile, non-radiative recombination of a perovskite electron transmission interface can be effectively reduced, and the efficiency and the stability of a device are improved.
Owner:华能青海发电有限公司 +1

Preparation method of BODIPY-based functional coupling type porous organic polymer photocatalyst and application of BODIPY-based functional coupling type porous organic polymer photocatalyst in photocatalytic production of hydrogen peroxide

The invention discloses a preparation method of a BODIPY-based functional coupling type porous organic polymer photocatalyst and application of the BODIPY-based functional coupling type porous organic polymer photocatalyst in photocatalytic production of hydrogen peroxide. Suzuki or Sonogashira coupling reaction is utilized, and the photoelectric property and catalytic performance of a polymer are regulated and controlled by adjusting the polarity of a polymeric monomer. The obtained polymer is a good photocatalyst, hydrogen peroxide can be directly synthesized through water and oxygen under illumination, and a simple and feasible new method and a new idea are provided for design and development, performance improvement and practical application of the photocatalyst.
Owner:LIANSHI (HUBEI) NEW MATERIAL CO LTD +1

Preparation Method and Application of a Sulfonated Photocatalyst

The present invention provides a preparation method and application of a sulfonated photocatalyst, belonging to the technical field of photocatalyst materials. The preparation steps include: reacting 2,5-dibromopyrimidine with trimethylsilylacetylene in anhydrous triethylamine and tetrahydrofuran, followed by extraction and purification to obtain a first intermediate; dissolving the first intermediate in tetrahydrofuran, dropping tetrabutylammonium fluoride for hydrolysis at a temperature below -40 °C, followed by extraction and purification to obtain a second intermediate; dissolving the second intermediate and 5,10,15,20-tetra(4-bromophenyl)porphyrin in N,N-dimethylformamide and diisopropylamine, and carrying out a Sonogashira coupling reaction under catalytic action; after the coupling reaction is completed, filtering, extraction and vacuum drying are carried out to obtain an initial polymer. The preparation method of the sulfonated photocatalyst provided by the present invention is simple, efficient and environmentally friendly. The prepared sulfonated photocatalyst has both excellent hydrophilicity and high oxygen adsorption capacity, and can efficiently produce H2O2.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Ionic pair-type homo- / heteronuclear bimetallic complexes, simple synthesis method thereof and application

The present invention belongs to the technical field of the synthesis of metal-organic complexes, and particularly relates to an ion-pair type homo- / hetero-nuclear bimetallic complex, a simple synthesis method thereof and an application thereof. The bimetallic complex is prepared by a metathesis reaction between a quaternary ammonium cationic monoazaheterocyclic carbene palladium complex and a sulfonic acid anionic monoazaheterocyclic carbene palladium / platinum / copper complex. In the Sonogashira coupling reaction, the complexes of the present invention exhibit more excellent catalytic activity compared with the individual complexes.
Owner:CHANGZHOU UNIV

A class of a-d-a type polymeric photovoltaic material based on porphyrin and preparation method and application thereof

PendingCN122356440AAccurate comparison systemEnhance the "push-pull" electronic effectPorphyrinCharge carrier mobility
This invention discloses a class of porphyrin-based A-D-A type polymer photovoltaic materials, their preparation methods, and applications. The invention utilizes a porphyrin-DPP system constructed through Sonogashira coupling, placing the donor unit at the center of the A-D-A structure. This A-D-A structure more effectively enhances the intramolecular push-pull electronic effect, promoting intramolecular charge transfer and thus significantly broadening and redshifting the light absorption range of the polymer. Furthermore, the A-D-A structure facilitates more ordered and compact intermolecular stacking, promoting the expansion of π-π conjugation and potentially increasing the carrier mobility of the material. This lays the material foundation for obtaining higher short-circuit current densities and fill factors in devices.
Owner:SOUTH CHINA UNIV OF TECH

Organic near-infrared photothermal conversion material as well as preparation method and application thereof

The invention discloses an organic near-infrared photothermal conversion material as well as a preparation method and application thereof, and belongs to the technical field of photothermal materials, the organic near-infrared photothermal conversion material is prepared through Suzuki coupling reaction and / or Sonogashira coupling reaction, 6-(2-ethylhexyl)-[1, 2, 5] thiadiazole [3, 4-F] benzotriazole or benzobisthiadiazole is used as an acceptor core, and the organic near-infrared photothermal conversion material is prepared through a one-step reaction. The same or different donor units are connected through a triple-bond pi bridge. The synthesis method of the organic near-infrared photothermal conversion material is simple, the molecular conjugated structure is prolonged and the intermolecular interaction is enhanced by introducing a triple bond pi bridge, and the organic near-infrared photothermal conversion material has longer-wavelength sunlight absorption capacity and excellent photothermal conversion capacity, can reach a high temperature of 300 DEG C or above under the action of laser and condensed sunlight, and has a wide application prospect. The method has a wide application prospect in the fields of photo-thermal device preparation, laser ignition, laser metal processing and the like.
Owner:SOUTH CHINA UNIV OF TECH

Alkynyl-containing conjugated microporous polymers in a helical structure, and methods of making and using the same

The application discloses acetylenic group-containing conjugated microporous polymers in a spiral structure and a preparation method thereof. A preparation process takes TNP-3Br and 1,4-diethynylbenzene or 1,3,5-triethynylbenzene as raw materials, takes tetra(triphenylphosphine palladium) and CuI as a catalyst, and takes toluene as a solvent. Through structural optimization and modular design of target CMPs, two kinds of conjugated microporous polymers CMP-1 and CMP-2 are prepared based on a Sonogashira coupling reaction mechanism by a solvothermal method. The conjugated microporous polymers have the characteristics of novel raw material structure, simple synthesis process, low cost, mild reaction condition and high yield. The synthesized CMP-1 and CMP-2 have an extended pi electron system, so that the CMP-1 and CMP-2 exhibit good electronic transmission performance. The materials have potential application values in photoelectric devices, such as organic light-emitting diodes, solar cells and the like.
Owner:HENAN UNIV OF SCI & TECH

Synthesis of 1-methyl-4-(phenylethynyl)benzene by using a palladium-catalyzed tetrafluorothianthrene salt

The invention discloses a novel method for synthesizing 1-methyl-4-(phenylethynyl)benzene by using palladium-catalyzed tetrafluorothianthrene salt. Under the action of AntPhos phosphine ligand and metal Pd(OAc)2, tetrafluorothianthrene salt is used as a novel coupling reagent to participate in the Sonogashira coupling reaction. The present invention uses Pd / AntPhos as a catalyst to efficiently synthesize 1-methyl-4-(phenylethynyl)benzene. Compared with the traditional method, the method has mild reaction conditions, high reaction activity, high yield, simple process, and good application and promotion value.
Owner:INNER MONGOLIA UNIVERSITY

Process for the preparation of 6-ethynylpyrazolo[1,5-a]pyridines

The application discloses a preparation method of 6-ethynylpyrazolo[1,5-a]pyridine, which comprises the following steps: 2,5-dibromopyridine is subjected to a sonogashira coupling reaction to obtain 2,5-di((trimethylsilyl)ethynyl)pyridine; a post-nitrogen amination agent is used for nitrogen amination reaction to obtain 1-amino-2,5-di((trimethylsilyl)ethynyl)pyridine; then, ring closing is carried out under the action of a post catalyst, and a tetrabutylammonium fluoride is used for desilylation to obtain 6-ethynylpyrazolo[1,5-a]pyridine. The preparation method of 6-ethynylpyrazolo[1,5-a]pyridine disclosed by the application has the advantages of low-cost raw materials, easy-to-control reaction conditions, high reaction selectivity, few by-products and suitability for large-scale production.
Owner:JIANGNAN UNIV

A process for the preparation of 4-bromothieno[2,3-c]pyridine-2-carboxylic acid ethyl ester

The application discloses a preparation method of 4-bromothieno[2,3-c]pyridine-2-carboxylic acid ethyl ester, which comprises the following steps: 5-bromo-4-iodopyridine-3-thiol and propargyl acid ethyl ester are subjected to a Sonogashira coupling and a ring-closing series reaction under the action of a catalyst and an alkali to obtain 4-bromothieno[2,3-c]pyridine-2-carboxylic acid ethyl ester. The raw material adopted by the method is cheap and easy to obtain, the synthesis method is simple to operate, the reaction condition is mild, the requirement for equipment is low, and the method is suitable for the needs of industrial large-scale production.
Owner:ANHUI UNIV +1

Indigo-based porous organic polymers, synthesis and their application in lithium-ion battery cathode materials

The application belongs to the technical field of lithium ion battery cathode materials, and provides an indigo dye-based porous organic polymer, synthesis and application thereof in lithium ion battery cathode materials. Through a Sonogashira coupling reaction, an indigo molecule containing a carbonyl structure is copolymerized with 1,3,5-triethinyl benzene monomers to synthesize a novel porous organic polymer containing indigo dye in a molecular chain. The material has a large specific surface area, and is the first porous organic polymer based on an indigo structure. Then, a multi-walled carbon nanotube is used to in-situ polymerize the porous organic polymer to obtain a composite material with good electrical conductivity, and a novel indigo-based organic electrode material with high rate performance and good cycle performance is developed. Compared with traditional inorganic materials, the material has simple synthesis, does not need high temperature, is rich in dye material sources, is low in price and can be applied in industrialization.
Owner:DALIAN UNIV OF TECH

Calixarene derivative as well as preparation method and application thereof

The invention discloses a calixarene derivative and a preparation method and application thereof, the structure of the calixarene derivative is as shown in formula I: R1 is CO2-NH4 < + >; r2 is any one of straight-chain alkyl, branched-chain alkyl, straight-chain alkyl containing double bonds and branched-chain alkyl containing double bonds. According to the invention, iodobalix [4] arene and an alkynyl-containing phenyl compound are connected through a Sonogashira coupling reaction to construct an extended aromatic macrocyclic skeleton, and then an ionic water-soluble structure is obtained through upper edge ester group hydrolysis. The calixarene derivative has the following innovative advantages that the depth and the volume of a cavity are remarkably increased, and large-volume guest molecules can be efficiently included; the extended cavity realizes effective inclusion of guest molecules through hydrophobic interaction and Van der Waals force; an upper edge carboxylate radical ion group specifically recognizes a cationic object through electrostatic interaction, so that the multi-site recognition function of enzyme is simulated; the water solubility is enhanced, and the method is suitable for the biological medicine fields of drug delivery, ion sensing and the like.
Owner:NINGBO UNIVERSITY OF TECHNOLOGY +1

Preparation method of idebenone

The invention discloses a preparation method of idebenone, which comprises the following steps: S1, carrying out Sonogashira coupling reaction on 2-iodo-3, 4, 5-trimethoxytoluene and 9-decyne-1-alcohol in an aprotic solvent under the catalytic action of bis (triphenylphosphine) palladium chloride, cuprous iodide and organic alkali to obtain an alkynyl intermediate IM 1; s2, carrying out catalytic hydrogenation reduction on the intermediate IM 1 in a protic solvent by using palladium carbon to obtain an unoxidized intermediate IM 2; and S3, oxidizing the intermediate IM 2 in a tetrahydrofuran aqueous solution by using potassium hydrogen peroxymonosulfate to obtain the final product idebenone. According to the preparation method of idebenone, provided by the invention, the conversion rate of reaction is effectively improved, the reaction steps are reduced, the operation of purifying an intermediate is omitted, the product yield is high, the process is simple, the operation is convenient and fast, and large-scale industrial production is facilitated.
Owner:苏州满元生物科技有限公司

Alkynyl-containing conjugated microporous polymer with helical structure as well as preparation method and application of alkynyl-containing conjugated microporous polymer

According to the preparation process, TNP-3Br and 1, 4-diacetylene benzene or 1, 3, 5-triacetylene benzene are used as raw materials, tetrakis (triphenylphosphine palladium) and CuI are used as catalysts, toluene is used as a solvent, through structural optimization and modular design of target CMPs, a solvothermal method is adopted based on a Sonogashira coupling reaction mechanism, and the alkynyl-containing conjugated microporous polymer with a helical structure is prepared. The two conjugated microporous polymers CMP-1 and CMP-2 are prepared, and the conjugated microporous polymers have the characteristics of novel raw material structure, simple synthesis process, low cost, mild reaction conditions, high yield and the like; the synthesized CMP-1 and CMP-2 have extended pi electronic systems, so that the CMP-1 and CMP-2 show good electronic conduction performance. The materials have potential application value in photoelectric equipment, such as organic light emitting diodes, solar cells and the like.
Owner:HENAN UNIV OF SCI & TECH

Method for synthesizing benzofuran derivative through copper-catalyzed alkynylation reaction

The invention discloses a method for synthesizing a benzofuran derivative through copper-catalyzed alkynylation reaction, and relates to the technical field of organic synthetic chemistry and medicinal chemistry. According to the method, halogenated anisole and terminal alkyne are used as raw materials, under the combined action of a copper catalyst and alkali, ethanol is used as a green solvent, an aryne intermediate is generated in situ through a Sonogashira coupling reaction, then an electrophilic reagent R-Se-X1 is directly added to induce cyclization without separation and purification, and a benzofuran skeleton is efficiently constructed. Compared with a traditional palladium catalysis system, the method has the advantages that the copper catalyst which is low in cost and easy to obtain is adopted, the problems of high cost and difficult recovery of precious metal (such as palladium) are solved, meanwhile, the use of cocatalysts of heavy metal (such as lead and antimony) is eliminated, and the economical efficiency and the environmental protection property of the process are remarkably improved. In addition, the reaction for synthesizing the aryne intermediate does not need inert gas protection, and the reaction conditions (heating and room temperature) are mild. In addition, the method provided by the invention also has excellent substrate universality.
Owner:LIUPANSHUI NORMAL UNIV

Fluorenyl bisphosphine ligands, methods for their preparation and use

The application belongs to the technical field of organic phosphine ligands, and particularly relates to a fluorenyl biphosphine ligand and a preparation method and application thereof. The fluorenyl biphosphine ligand is prepared by using an easily available aryl halide as a starting material, constructing a phosphine-containing intermediate, and further converting the phosphine-containing intermediate to realize efficient construction of a fluorene skeleton biphosphine structure. The method has a clear reaction route, the raw materials are widely available, the reaction can be completed under mild conditions, is suitable for synthesis of different biphosphine substitution systems, and the prepared fluorenyl biphosphine ligand exhibits excellent catalytic performance in a Sonogashira coupling reaction, and has good practicability and promotional value.
Owner:HENAN ACADEMY OF SCI CHEM RES INST CO LTD +3

Application of hyperbranched conjugated fluorescent polymer in fluorescence detection of gasoline, diesel and kerosene

The application provides application of a hyperbranched conjugated fluorescent high polymer in fluorescence detection of gasoline, diesel and kerosene, and relates to the technical field of organic synthesis and fluorescence sensing. The hyperbranched conjugated fluorescent high polymer has a structure shown in general formula (I), and is characterized in that a triethynylbenzene structure in the center of the polymer is subjected to a sonogashira coupling reaction with a hydroxyl-substituted benzene derivative to form a two-dimensional network structure, thereby bringing excellent sensing performance to a sensitive film; the sensitive film has on-site rapid detection sensitivity and sub-second (less than 1s) rapid response capability for gasoline, diesel and kerosene, meets on-site emergency detection requirements, and can realize effective anti-interference capability for various substances, and realizes high selectivity detection in a complex matrix environment.
Owner:TONGJI UNIV

Circularly polarized chiral organic fluorescent light-emitting material, preparation method and application thereof

A kind of circularly polarized chiral organic fluorescent light emitting material and its preparation method and application belong to the technical field of design, preparation and application of chiral polymer functional materials.The chiral binaphthyl compound R / S-2 prepared as chiral monomer is coupled with the monomer of fluorenyl chromophore group with single bond, double bond and triple bond connector to prepare three intrinsic chiral polymer functional fluorescent light emitting materials R / S-P1, R / S-P2 and R / S-P3 with different conjugated main chain conformations by Suzuki, Heck and Sonogashira coupling polymerization reaction, and their photophysical properties and chiral luminescence performance in thin film state are studied.The experiment proves that the product prepared by the application embodies the controllable photophysical properties in test, and has certain circular dichroism and circularly polarized luminescence properties, indicating that it is expected to be applied in the field of chiral solid-state display material and optoelectronic device.
Owner:HEFEI UNIV

Fluorescent systems for biological imaging and uses thereof

The invention discloses a dye sensitizer molecule taking triazole as a core and a preparation method of the dye sensitizer molecule. According to the dye molecule, a triazole ring is introduced to the design of a molecular structure, and the electronic absorption and transmission capability among D-pi-A dye molecules are greatly improved by substituting donors with different carbon chain lengths and receptors with triple bonds at the periphery, so that a novel triazole dye with high efficiency is obtained. The preparation method of the compound comprises: click chemical reaction, detrimethylsilyl reaction, Sonogashira coupling reaction and the like; and the prepared dye molecule can be applied to a dye-sensitive solar cell and can show favorable photoelectric conversion property so as to have wide application prospects on the aspects of energy development and utilization. In addition, the material also has liquid crystal property under a certain condition so as to also have a huge potential on the aspect of application to photoelectric devices.
Owner:LIGHTOX LTD

An organic high-temperature photothermal material based on a tetraphenyl aromatic (hetero) ring as a core and a preparation method and application thereof

This invention discloses an organic high-temperature photothermal material based on a tetraphenyl aromatic (hetero) ring core, its preparation method, and its applications. This organic high-temperature photothermal material is prepared through a simple four-step reaction, involving classic Sonogashira coupling and [2+2] click cycloaddition reactions. The tetraphenyl aromatic (hetero) ring serves as the backbone, connecting different donor units and click acceptor units. The donor units are aromatic amine groups, heteroaromatic amine groups, and alkyl amine groups, while the acceptor units are click reagents. The molecular backbone of this organic high-temperature photothermal material exhibits high rigidity and conjugation, maintaining a stable chemical structure under high-temperature conditions. Furthermore, this organic high-temperature photothermal material possesses high near-infrared absorption efficiency and high photothermal conversion efficiency. Further, this organic high-temperature photothermal material is used for laser initiation, achieving precise control of the initiation process through materials chemistry design. This lays a crucial material foundation for the development of a new generation of low-cost, high-safety laser initiation systems.
Owner:SOUTH CHINA UNIV OF TECH

Two-dimensional acetylene-rich carbon frame fast-charging negative electrode material and preparation method and application thereof

The invention belongs to the technical field of electrochemistry, and relates to a two-dimensional acetylene-rich carbon frame fast-charging negative electrode material and a preparation method and application thereof. The negative electrode material is prepared by respectively dissolving two monomers in an upper layer and a lower layer of mutually insoluble solvents and carrying out Sonogashira coupling polymerization at an interface, the two monomers are bromine-containing organic lithium and 1, 4-diacetylene benzene. The two monomers can also be added into an organic solvent, and corresponding products can be obtained through an oil bath heating reaction. The highly ordered structure of the material can significantly improve the transmission kinetics of lithium ions. In addition, the introduction of the carboxyl lithium group can optimize the electronic structure of the material, so that the electrode interface desolvation process and SEI interface film components are regulated and controlled, and excellent fast charging performance is shown. The invention provides a high-performance electrode material and an innovative preparation method for the fast-charging lithium ion battery.
Owner:SHANDONG UNIV