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176 results about "Tetraphenylporphyrin" patented technology

Tetraphenylporphyrin, abbreviated TPP or H₂TPP, is a synthetic heterocyclic compound that resembles naturally occurring porphyrins. Porphyrins are dyes and cofactors found in hemoglobin and cytochromes and are related to chlorophyll and vitamin B₁₂. The study of naturally occurring porphyrins is complicated by their low symmetry and the presence of polar substituents. Tetraphenylporphyrin is hydrophobic, symmetrically substituted, and easily synthesized. The compound is a dark purple solid that dissolves in nonpolar organic solvents such as chloroform and benzene.

Amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound and preparation method thereof

The invention discloses amino porphyrin-poly (N-isopropylacrylamide) europium coordination compound and a preparation method of the amino porphyrin-poly (N-isopropylacrylamide) europium coordination compound. The preparation method of the amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is characterized in that (NH2)n-TPP is prepared into an ATRP initiator which is NH2-TPP-X, wherein the X is halogen. The NH2-TPP-X is adopted to initiate NIPAM to be polymerized to obtain polymer which is (NH2)n-TPP-PNIPAM. The europium with tervalence is coordinated with the polymer (NH2)n-TPP-PNIPAM to obtain coordination compound which is (NH2)n-TPP-PNIPAM-Eu(III)-TTA through the TTA, wherein the n meets an equation that is n=1,2,3. The amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is characterized in that a short form of the amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is (NH2)n-TPP-PNIPAM-Eu(III)-TTA, wherein the TPP is tetraphenylporphyrin, wherein the shortened form of the tetraphenylporphyrin is porphyrin, the PNIPAM is the poly (N-isopropylacrylamide), the Eu(III) is the europium with the tervalence, and the TTA is alpha- thenoyltrifluoroacetone.
Owner:CHANGCHUN UNIV OF SCI & TECH

Preparation of silica gel supported metalloporphyrin compound and application method thereof

The invention belongs to the technical field of supported metalloporphyrins, and in particular relates to preparation of a silica gel supported metalloporphyrin compound and an application method thereof so as to solve the problems of preparing the metalloporphyrin compound in the prior art. The preparation steps are that: tetraphenylporphyrin, Lewis acid and trichloromethane are added with a chloromethylation reagent dropwise for thermostatic reaction, and chloromethylation tetraphenylporphyrin is obtained after treatment; the chloromethylation tetraphenylporphyrin is dissolved into DMF, the mixture is added with silica gel for temperature reaction, and the silica gel supported porphyrin is obtained after treatment; and the silica gel supported porphyrin is dissolved into the DMF, the mixture is subjected to temperature rise and added with metal salt or oxide for reaction, and the silica gel supported metalloporphyrin compound is obtained after treatment. The application method comprises that: phenylethane and the silica gel supported metalloporphyrin compound are introduced with O2 for the temperature reaction, and a main product hypnone is obtained after treatment. The invention has the advantages that: the reaction is easier, and the supported degree of the porphyrin is high; and in the application, the activity of a catalyst is effectively protected, the activities of the catalyst are promoted, and the yield and the selectivity of the main product are improved.
Owner:ZHONGBEI UNIV

Preparation method and application method of cobalt-tellurium diatomic site catalyst

The invention relates to a preparation method and an application method of a cobalt-tellurium diatomic site catalyst. The method comprises the following steps: preparing the catalyst by adopting a space confinement-etching-pyrolysis strategy, and comprises the following three steps: (1) packaging and anchoring a Te precursor by using a molecular pore channel of a metal organic framework material (ZIF-8) as a cage so as to realize uniform space distribution of the Te precursor; (2) performing etching and ion exchange on the frame material by using a metal precursor to realize atomic dispersionof the metal precursor; (3) treating and removing the ligand by using a high-temperature pyrolysis method, carbonizing, stabilizing Co and Te atoms by using a derived carbon-nitrogen framework material, and preventing the Co and Te atoms from migration and agglomeration so as to realize the synthesis of the Co/Te diatomic site catalyst, wherein the precursor is Te powder and cobalt acetylacetonate/cobalt tetraphenylporphyrin/vitamin B12/cobalt nitrate. The method is simple in process, the preparation method is simple, conditions are mild, the obtained Co/Te diatomic site catalyst has a rich micro/mesoporous structure, the specific surface area is larger than 1000 m < 2 >/g, active sites are in atomic dispersion, excellent electro-catalytic hydrogen production and oxygen reduction performance can be shown, and the cobalt-tellurium diatomic site catalyst can be used as an efficient electrolysis (sea) water and metal-air battery catalyst.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Preparation method of carbon nanotube/paraffin microcapsule with light absorption performance

The invention relates to a preparation method of a carbon nanotube/paraffin microcapsule with light absorption performance. The preparation method comprises the following steps: first acidifying and grafting a carbon nanotube to obtain a polyhydroxy carbon nanotube; nitrifying and reducing tetraphenylporphyrin to obtain amino porphyrin; secondly, placing the polyhydroxy carbon nanotube in a round-bottom flask with distilled water, ultrasonically dispersing, and adding melamine, urea and a formaldehyde solution into the system to prepare a prepolymer; then adding the amino porphyrin into molten paraffin, ultrasonically dispersing, adding an emulsifier and distilled water, and preparing an emulsion; and finally mixing the prepolymer, the emulsion, sodium chloride, glacial acetic acid and a curing agent, and reacting to obtain the microcapsule. The phase change potential heat is increased, and the carbon nanotube is uniformly dispersed in the compound paraffin to increase the heat conductivity, so that the stability of the emulsion is improved; the heat conducting performance of a wall material is improved, and the heat storage and release efficiency of the microcapsule is improved; and meanwhile, the microcapsule has an obvious absorption peak in a visible light zone, and has a photosensitive property.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Photosensitive medicinal preparation containing amino poly-carboxylic acid modification tetraphenylporphyrin compound and purpose thereof

The invention discloses a photosensitive medicinal preparation containing amino poly-carboxylic acid modification tetraphenylporphyrin compound. Each unit dose contains 1mg-100mg of the amino poly-carboxylic acid modification tetraphenylporphyrin compound. The each unit dosage is the total amount of the medicinal preparation used everyday. The amino poly-carboxylic acid modification tetraphenylporphyrin compound can be used in combination with other medicine or is singly used. Through addition of a drug carrier which is acceptable in pharmacy, the amino poly-carboxylic acid modification tetraphenylporphyrin compound accounts for 0.5%-40% the total weight of the medicinal preparation and can be prepared to any dosage form accepted clinically. The invention further provides application of the medicinal preparation on preparation of photosensitive antitumor drug and in the near infrared fluorescence imaging filed. The photosensitive medicinal preparation containing the amino poly-carboxylic acid modification tetraphenylporphyrin compound is low in toxicity, convenient to apply, wide in tumor suppression spectrum, good in tumor control rate, good in effect of malignant tumor treatment through photodynamic therapy, high in fluorescence quantum yield and optical stability in a near-infrared area, good in biocompatibility, capable of having a certain ability of penetrating the biological barrier, and wide in application prospect in the near infrared fluorescence imaging field.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Preparation method of fullerene/tetraphenylferriporphyrin self-assembled structure oxygen reduction electrocatalyst

The invention relates to a preparation method of a fullerene/tetraphenyl ferriporphyrin self-assembled structure oxygen reduction electrocatalyst. The preparation method comprises the following steps: carrying out condensation reflux on tetraphenyl porphyrin, iron nitrate nonahydrate and a DMF solvent, and carrying out vacuum drying to obtain tetraphenyl ferriporphyrin; preparing a fullerene toluene solution, mixing the fullerene toluene solution with the isopropyl alcohol suspension of tetraphenyl ferriporphyrin, performing standing, carrying out suction filtration, washing, and carrying out vacuum drying to obtain a sample with a self-assembly structure; taking a self-assembled sample and flatly spreading in a magnetic boat, putting the magnetic boat into a quartz tube protected by hydrogen and argon mixed gas, performing a heat preservation reaction at the temperature of 600-800 DEG C, performing natural cooling to the room temperature, and obtaining the fullerene/tetraphenylferriporphyrin self-assembled structure oxygen reduction electrocatalyst. The process for preparing the C60/FeTPP self-assembly structure through a liquid-liquid interface precipitation method is mature, simple to operate, low in production cost and easy for industrial production. A donor-acceptor system with charge transfer can be effectively constructed, and the half-wave potential of the donor-acceptor system can reach 0.86 V (vs.RHE).
Owner:SHAANXI UNIV OF SCI & TECH

Organic multi-component carrier lead ion selective electrode and preparation method thereof

The invention discloses an organic multi-component carrier lead ion selective electrode and a preparation method thereof. The organic multi-component carrier lead ion selective electrode comprises a selective film, a polrvinyl chloride pipe, an Ag/AgCl internal reference electrode, internal filled liquid and an electrode lead. The preparation method is characterized by comprising the following steps of: sufficiently mixing macrocyclic compounds such as calixarene, tetraphenylporphyrin and 18-crown ether-6 and organic matters containing soft active atoms (O, S, P), such as triphenylphosphine and dimethyl sulfide, to prepare a physical blending carrier; and dissolving the blending carrier, polrvinyl chloride powder, dibutyl phthalate and sodium tetraphenylborate into tetrahydrofuran, and carrying out ultrasonic dispersion to obtain a lead ion selective film. The purpose of carrier modification is achieved through physical mixing, so that the property of the lead ion selective electrode is extremely high, and the carrier is avoided being subjected to chemical modification with a complicated chemical synthesis process and a large quantity of organic reagents. The organic multi-component carrier lead ion selective electrode has the advantages of simple manufacturing, Nernst response, good selectivity and high stability and can be used for quickly and accurately detecting lead ions in a solution.
Owner:BENGBU COLLEGE

Beta-(2,3-dihydro-naphthyl[1,2,e]-m-oxazinyl) tetraphenylporphyrin, and preparation method and application thereof

The invention discloses beta-(2,3-dihydro-naphthyl[1,2,e]-m-oxazinyl)tetraphenylporphyrin of which the structural general formula is disclosed as Formula (I) or Formula (II), and a preparation method and application thereof. The preparation method comprises the following steps: 1) preparing 5,10,15,20-tetraphenyl porphyrin from pyrrole and benzaldehyde, carrying out coordination with copper to obtain 5,10,15,20-tetraphenyl copper porphyrins, carrying out regioselective nitration to obtain beta-nitro-substituted-5,10,15,20-tetraphenyl copper porphyrins, carrying out decoppering and reduction to obtain beta-amino-substituted-5,10,15,20-tetraphenyl porphyrins, and reacting with acetate to obtain beta-amino-substituted-tetraphenyl metalloporphyrins (beta-NH2-MTPP); 2) carrying out condensation reaction on the beta-NH2-MTPP, formaldehyde and 2-naphthol, separating the product by column chromatography to obtain a beta-(2,3-dihydro-1H-naphthyl[1,2,e]-m-oxazinyl)-substituted tetraphenyl porphyrin metal complex; and decoppering to obtain the beta-(2,3-dihydro-naphthyl[1,2,e]-m-oxazinyl)tetraphenylporphyrin. The compounds can be used for preparing photodynamic-therapy photosensitizers and antineoplastic drugs with small toxic and side effects and high activity.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Two-dimensional metal-organic framework structure nano-sheet, preparation method and applications thereof

The invention discloses a two-dimensional metal-organic framework structure nano-sheet, a preparation method and applications thereof. The preparation method comprises the following steps: providing amixed solution containing tetraphenylporphyrin, gadolinium metal ions, an organic solvent and water, adjusting the ratio of the organic solvent to the water in the mixed solution, and carrying out asolvothermal reaction to obtain a two-dimensional metal-organic framework structure nano-sheet with uniform size distribution; and carrying out hydrogen protonation treatment on the nano-sheet to obtain the protonated nano-sheet with the two-dimensional metal-organic framework structure. According to the invention, the obtained two-dimensional metal-organic framework structure nano-sheet can be used for magnetic resonance imaging analysis or photodynamic therapy of tumors; and the nano-sheet with uniform size distribution is obtained by adjusting the proportion of the mixed solution and carrying out solvothermal treatment, and the ultraviolet and visible absorption intensity and the ultraviolet and visible absorption intensity range of the nano-sheet are improved through hydrogen protonation treatment, so that the nano-sheet generates sensitive magnetic resonance imaging and photodynamic treatment effects on tumors.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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