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51 results about "Carbon–nitrogen bond" patented technology
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A carbon–nitrogen bond is a covalent bond between carbon and nitrogen and is one of the most abundant bonds in organic chemistry and biochemistry. Nitrogen has five valence electrons and in simple amines it is trivalent, with the two remaining electrons forming a lone pair. Through that pair, nitrogen can form an additional bond to hydrogen making it tetravalent and with a positive charge in ammonium salts. Many nitrogen compounds can thus be potentially basic but its degree depends on the configuration: the nitrogen atom in amides is not basic due to delocalization of the lone pair into a double bond and in pyrrole the lone pair is part of an aromatic sextet.
Boron-containing organic electroluminescent compound and application to OLED device
ActiveCN106467553AImprove applicabilityImprove luminous efficiencySolid-state devicesSemiconductor/solid-state device manufacturingFluorescenceStructural formula
The invention discloses a boron-containing efficient organic electroluminescent compound and application of the compound to an OLED device. The structural formula of the compound is as shown in the general formula (1). Boron atom as the core extends outward three six-membered rings composed of carbon-carbon single bonds, wherein the carbon-carbon single bonds also can be replaced with carbon-oxygen and carbon-nitrogen bonds; a benzene ring is sandwiched between each two six-membered rings; and each phenyl ring is respectively externally connected to hydrogen, aryl group, heteroaryl group, alkyl group, alkyloxy group, or arylamine group. The material has good fluorescence quantum efficiency and electroluminescent efficiency, is easy to form an amorphous film, and has good heat stability. Thus, the material can be used as a luminescent layer material in an organic electroluminescent device.
Owner:JIANGSU SUNERA TECH CO LTD
Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
InactiveUS6867298B2Cheap and practicalLow costUrea derivatives preparationCarbamic acid derivatives preparationCarbon–oxygen bondHydrazine compound
The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or amine moiety and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In additional embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between a nitrogen atom of an acyl hydrazine and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In other embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of a nitrogen-containing heteroaromatic, e.g., indole, pyrazole, and indazole, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-oxygen bond between the oxygen atom of an alcohol and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. The present invention also relates to copper-catalyzed methods of forming a carbon-carbon bond between a reactant comprising a nucleophilic carbon atom, e.g., an enolate or malonate anion, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. Importantly, all the methods of the present invention are relatively inexpensive to practice due to the low cost of the copper comprised by the catalysts.
Owner:MASSACHUSETTS INST OF TECH
Amine compounds and curable compositions derived therefrom
InactiveUS7132557B2Readily exposed to waterExtended shelf lifeSilicon organic compoundsSynthetic resin layered productsCarbon–nitrogen bondOrganic chemistry
Disclosed are compounds produced by a process comprising the step of reacting an amine reactant with an epoxide reactant to form a hydrolytically stable carbon-nitrogen bond therebetween, wherein at least one of the amine or epoxide reactants comprises a terminal alkoxysiyl group. Also disclosed are curable compositions comprising the compounds of the present invention and the cured products derived therefrom.
Owner:VIRGINIA TECH INTPROP INC
Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
InactiveUS6888032B2Cheap and practicalLow costOrganic compound preparationThiol preparationCarbon–carbon bondSulfide
One aspect of the present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-sulfur bond between the sulfur atom of a thiol moiety and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In other embodiments, the present invention relates to copper(II)-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-carbon bond between the carbon atom of cyanide ion and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In another embodiment, the present invention relates to a copper-catalyzed method of transforming an aryl, heteroaryl, or vinyl chloride or bromide into the corresponding aryl, heteroaryl, or vinyl iodide. Yet another embodient of the present invention relates to a tandem method, which may be practiced in a single reaction vessel, wherein the first step of the method involves the copper-catalyzed formation of an aryl, heteroaryl, or vinyl iodide from the corresponding aryl, heteroaryl, or vinyl chloride or bromide; and the second step of the method involves the copper-catalyzed formation of an aryl, heteroaryl, or vinyl nitrile, amide or sulfide from the aryl, heteroaryl, or vinyl iodide formed in the first step.
Owner:MASSACHUSETTS INST OF TECH
N-type water and alcohol soluble conjugated polymer material containing naphtho-diamide ring, and preparation method and application of material
ActiveCN104725613AEasy transferSimple processFinal product manufactureSolid-state devicesFuranDouble bond
The invention discloses an n-type water and alcohol soluble conjugated polymer material containing a naphtho-diamide ring, and an application of the material. The material is in the following structure as shown in the description, wherein Ar is an aromatic group; A and B are hydrogen atoms or water and alcohol soluble strong polar groups; at least one of A and B is the water and alcohol soluble strong polar group; pi units are benzene, naphthalene, thiophene, bithiophene, selenophene, tellurophene, furan, pyrrole, silole, thiazole, oxazole, triazole or other conjugated units containing carbon-carbon double bonds and carbon-nitrogen bonds; m is an integer of 0 to 3; x is greater than 0 and less than 1; y is greater than 0 and less than 1; x plus y is equal to 1; and n is a natural number of 1 to 10000. The material can serve as an electron transfer layer with good charge transfer capability to be applied to luminous and photovoltaic photoconducting devices, etc., and a processing technology and the performance of the devices are improved.
Owner:SOUTH CHINA UNIV OF TECH
Method for concentrating viruses, method for concentrating cells or bacteria, and magnetic composite
ActiveUS20110027854A1Concentrating viruses safely, efficiently and selectivelyConcentrating cells or bacteria safely, efficiently and selectivelySsRNA viruses negative-senseBioreactor/fermenter combinationsMagnetite NanoparticlesChemistry
A method for concentrating viruses includes applying a magnetic force to a mixture containing: sugar chain-immobilized magnetic metal nano-particles each having a structure in which a sugar chain-immobilized metal nano-particle is bound to a first magnetic nano-particle; second magnetic particles with mean particle size larger than that of the sugar chain-immobilized magnetic metal nano-particles; and a specimen. Each sugar chain-immobilized metal nano-particle has a structure where a ligand-conjugate is bound to a metal nano-particle via sulfur atoms. The ligand-conjugate has a structure where a linker compound's amino group is connected to a sugar chain having a reducing terminal. The linker compound includes, in molecules thereof, an amino group, sulfur atoms, and a hydrocarbon chain having carbon-nitrogen bonds. This allows short-time concentration of viruses in a sufficient amount almost equal to that of centrifugation concentration, allowing safely and effectively concentrating target viruses, resulting in prompt, easy, and highly sensitive detection and identification of viruses.
Owner:SUDX BIOTEC CORP
Nano coating and preparation method and application thereof
InactiveCN102719189AAvoid reunionImprove stabilityPolyurea/polyurethane coatingsRadiation-absorbing paintsCarbon–carbon bondUltraviolet absorption
The invention provides nano coating comprising nano dispersion liquid, light-cured resin and auxiliaries. The nano dispersion liquid at least comprises nano materials and dispersants, the dispersants account for 5-50% of the weight of the nano materials, and the light-cured resin accounts for 100-600% of the weight of the nano materials. The auxiliaries at least comprise photoinitiators, adhesion promoters, flatting agents, surface anti-wear agents and diluting solvent. The dispersants and the light-cured resin form ionic bond or covalent bond combination, and chemical bonds at least include ester bonds, urea bonds, carbon-carbon bonds, carbon-nitrogen bonds and chemical bonds having the structural characteristics of -o-, carbamic acid ester, acid amide, acid imide, oxazolidinone and the like, so that re-agglomeration of the nano materials in films can be avoided, and further stability and weather resistance of the nano functional films are improved, and the service life of the nano functional films is prolonged. The nano coating further has the advantages of high visible light transmittance, high infrared barrier rate and high ultraviolet absorption rate.
Owner:SUZHOU GENER NANO TECH
Carohydrate-Ligand Conjugates and Their Application for the Analysis of Carbohydrate-Protein Interaction
ActiveUS20070287195A1Good reproducibilitySugar derivativesBiological material analysisCarbon–nitrogen bondCarbon–oxygen bond
A novel ligand conjugate which is effectively utilizable for analyzing a function of a protein; a ligand-supporting object; and a method of analyzing a protein. The ligand conjugate has a structure which comprises: a linker compound having a structure represented by the following General Formula (1): (wherein n and p each is an integer of 0 to 6) in which X is a structure comprising one, two, or three hydrocarbon derivative chains which have an aromatic amino group at the end and may have a carbon-nitrogen bond in the main chain, Y is a hydro-carbon structure containing one or more sulfur atoms, and Z is a straight-chain structure comprising a carbon-carbon bond or carbon-oxygen bond; and a sugar which has a reducing end and is bonded to the linker compound through the aromatic amino group.
Owner:JAPAN SCI & TECH CORP +1
Linker compound, ligand, and producing method thereof
InactiveUS7320867B2Good reproducibilityBioreactor/fermenter combinationsBiological substance pretreatmentsCarbon–nitrogen bondChemical compound
A linker compound has a structure represented by general formula (1) below, where n is an integer of 1 to 6, and X has a structure serving as a multi-branched structure moiety including three or four hydrocarbon derivative chains each having an aromatic amino group at an end and a carbon-nitrogen bond in a backbone. A ligand includes the linker compound and a sugar introduced into the linker compound
Owner:JAPAN SCI & TECH CORP +1
Method for preparing nitrogen-doped porous spherical disordered carbon material
ActiveCN106207119ALarge specific surface areaHigh specific capacityCell electrodesSecondary cellsPorous carbonArgon atmosphere
The invention provides a method for preparing a nitrogen-doped porous spherical disordered carbon material. The method comprises the steps of taking glycine and SiO<2> as a carbon-nitrogen source and a template agent; after performing spray granulation, carrying out high-temperature pyrolysis in argon atmosphere; and etching by using NaOH, and washing to obtain a target product. In the spray drying process, fine suspension liquid fog drops are rapidly dried by high-temperature airflow to form a spherical precursor which consists of glycine and SiO<2>; in the high-temperature pyrolysis process in the argon atmosphere, a part of carbon-nitrogen bonds are kept in the pyrolysis and carbonization of glycine, so that an effect of nitrogen doping is achieved; the prepared porous carbon spheres are mesoporous materials; the dimensions of the holes are about 10nm; the carbon spheres are uniform in particle diameter; the diameter of the carbon spheres is about 1-3[mu]m; the content of the doped nitrogen is about 10.86%; and the prepared nitrogen-doped porous spherical disordered carbon material, which is used as a negative electrode material of a lithium ion battery, has good electrochemical performance.
Owner:TIANJIN UNIV
Copper-catalyzed formation of carbon heteroatom and carbon-carbon bonds
InactiveUS20050215794A1Cheap and practicalLow costUrea derivatives preparationCarbamic acid derivatives preparationCarbon–oxygen bondHydrazine compound
The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or amine moiety and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In additional embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between a nitrogen atom of an acyl hydrazine and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In other embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of a nitrogen-containing heteroaromatic, e.g., indole, pyrazole, and indazole, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-oxygen bond between the oxygen atom of an alcohol and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. The present invention also relates to copper-catalyzed methods of forming a carbon-carbon bond between a reactant comprising a nucleophilic carbon atom, e.g., an enolate or malonate anion, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. Importantly, all the methods of the present invention are relatively inexpensive to practice due to the low cost of the copper comprised by the catalysts.
Owner:MASSACHUSETTS INST OF TECH
Dye, photoelectric conversion element using the same, photoelectrochemical cell, and method of producing dye
InactiveUS20140102540A1Improve featuresImprove photoelectric conversion efficiencyOrganic chemistryLight-sensitive devicesCarbon–nitrogen bondPhotoelectrochemical cell
A dye, having a structure represented by formula (1A):wherein A represents a group of atoms necessary for forming a ring together with the carbon-nitrogen bond; at least one of Y1A and Y2A represents an acidic group, in which when they each represent an acidic group, they may be the same as or different from each other, or when only one of them represents an acidic group, the other represents an electron-withdrawing group; D represents a group to give a dye; n represents an integer of 1 or greater; L represents a single bond or a divalent linking group; and Y3A represents an acidic group.
Owner:FUJIFILM CORP
Magnetic solid polyamino adsorbent granular material, preparation method and application thereof
InactiveCN106807335ASolve the purification problemSimple methodOther chemical processesSpecific water treatment objectivesSorbentChemical adsorption
The invention relates to a polyamino-coated magnetic solid polyamino adsorbent granular material of which the particle size is 0.5-500.0 mu m. The granular material has the inorganic / organic multi-shell core-shell structure and the stable structure of connecting the polyamino adsorptive groups by carbon nitrogen bonds. The preparation method mainly comprises the following basic steps: (1) preparing an inorganic matter coating; (2) carrying out surface double bond modification; (3) preparing an organic matter coating; and (4) preparing the magnetic solid polyamino adsorbent granular material. The magnetic solid polyamino adsorbent granular material can generate selective chemical adsorption effects with heavy metal substances in a water body or solid-liquid suspension (mixed) system within a wide pH range, can be easily separated from the water body or solid-liquid suspension (mixed) system by a magnet or magnetic separator, is renewable and reusable, can implement centralized treatment on heavy metals, and can be widely used in environmental protection, pollution treatment, heavy metal substance recovery, mineral separation, hydrometallurgy and other industries.
Owner:CUG WUHAN GOLDEN SHIELD ENVIRONMENTAL TECH CO LTD
Versatile linker compound and ligand, and method for preparation thereof
InactiveUS20060030699A1Easy to carryGood reproducibilityBioreactor/fermenter combinationsBiological substance pretreatmentsCarbon–nitrogen bondChemical compound
A linker compound has a structure represented by general formula (1) below, where n is an integer of 1 to 6, and X has a structure serving as a multi-branched structure moiety including three or four hydrocarbon derivative chains each having an aromatic amino group at an end and a carbon-nitrogen bond in a backbone. A ligand includes the linker compound and a sugar introduced into the linker compound.
Owner:JAPAN SCI & TECH CORP +1
Amination process
InactiveUS20020128490A1Isocyanic acid derivatives preparationOrganic compound preparationCarbon–nitrogen bondPyrrolidine
The present invention provides methodology for carbon-nitrogen bond formation via vinyl or aryl amination. In the process of the invention, an sp.sup.2 hybridized radical is reacted with an azomethine moiety to form pyrrolidine and indole compounds. The methodology provides a facile process for the synthesis of compounds having the pyrrolidine or indole subunit and is especially advantageous for compounds having acid or base labile functional groups andor is comprised of chiral centers susceptible to acidbase epimerization.
Owner:ADVANCED RES TECH INST
Sensitively responsive polymer nano-particles, and preparation method and application thereof
ActiveCN104224721AAvoid combiningProlong blood circulation timePowder deliveryPharmaceutical non-active ingredientsPolymer scienceParticle stability
The embodiment of the invention provides sensitively responsive polymer nano-particles which comprise poly(cystamine bisacrylamide-alt-spermine) and polyethylene glycol-b-polylysine(2,3-dimethyl maleate); in poly(cystamine bisacrylamide-alt-spermine), a cystamine bisacrylamide monomer and a spermine monomer are connected through a carbon-nitrogen bond; in polyethylene glycol-b-polylysine(2,3-dimethyl maleate), a polyethylene glycol chain segment is methyl-polyethylene glycol-amino; one end of a polylysine chain segment is connected with the amino end of the polyethylene glycol chain segment through an amide bond; and 2,3-dimethyl maleate is connected with amino on the side chain of the polylysine chain segment through an amide bond. The sensitively responsive polymer nano-particles are good in stability and can be effectively enriched at a tumor site; loaded medicinal molecules can enter tumor cells easily; in addition, the sensitively responsive polymer nano-particles are good in biocompatibility and easy to degrade.
Owner:SHENZHEN INST OF ADVANCED TECH
Synthetic method of aminoisoindole derivatives
ActiveCN108997194AWide variety of sourcesEase of commercial purchaseOrganic chemistryCarbon–nitrogen bondOrganic synthesis
The invention belongs to the technical field of organic synthesis chemistry, and particularly relates to a synthetic method of aminoisoindole derivatives. According to the invention, continuous carbon-nitrogen bond construction is catalyzed by rare earth, so that synthesis of aminoisoindole derivatives with diversified structures is realized. Specifically, a compound 2-phenylethynyl benzonitrile and secondary amine are used as raw materials, and the aminoisoindole derivatives are prepared under a rare-earth catalysis system. According to the method disclosed by the invention, the raw materialsare wide in source or are easy to prepare, the operation is simple and convenient, selectivity is controllable, the yield is high, conditions are mild, and universality is wide.
Owner:WENZHOU UNIVERSITY
Methods for forming aryl carbon-nitrogen bonds using light and photoreactors useful for conducting such reactions
ActiveUS20190345122A1Amino preparation from aminesOrganic-compounds/hydrides/coordination-complexes catalystsCarbon–nitrogen bondElectrical polarity
The disclosure relates to a method for forming aryl carbon-nitrogen bonds and to photoreactors useful in these and other light-driven reactions. The method comprises contacting an aryl halide with an amine in the presence of a Ni salt catalyst solution and an optional base, thereby forming a reaction mixture; exposing the reaction mixture to light under reaction condition sufficient to produce the aryl carbon-nitrogen bonds. In certain embodiments, the amine may be present in a molar excess to the aryl halide. In certain embodiments, the Ni salt catalyst solution includes a Ni(II) salt and a polar solvent, wherein the Ni(II) salt is dissolved in the polar solvent. In certain embodiments, the reactions conditions include holding the reaction mixture at between about room temperature and about 80° C. for between about 1 hour and about 20 hours such that at least about 50% yield is obtained.
Owner:COLORADO STATE UNIVERSITY
Method for catalyzing amino protection by imidazole hydrochloride
ActiveCN110028422AShort reaction timeSuitable for industrial productionOrganic compound preparationCarboxylic acid amides preparationCarbon–nitrogen bondNitrogen
The invention provides an amino protection method which realizes multi-substituted amino protection by using imidazole hydrochloric acid as an accelerator to push derivatives of primary amine, secondary amine and acrylamide to perform Michael addition at a relatively low temperature, wherein the imidazole hydrochloric acid promotes a carbon-nitrogen bond to crack back to the derivatives of primaryamine and acrylamide at a high temperature. The method provided by the invention is simple and economical, high in practicability, free of any other catalysts or additives, capable of protecting amino to have good functional group tolerance and excellent yield and purity, short in reaction time, free from harsh reaction conditions and suitable for industrial production.
Owner:CHONGQING MEDICAL UNIVERSITY
Linker Compound, Ligand Conjugate, and Production Methods Thereof
InactiveUS20070213523A1Good reproducibilityOrganic active ingredientsBiocideCarbon–nitrogen bondSulfur
The present invention provides a novel linker compound which minimizes any nonspecific hydrophobic interactions and is capable of easily adjusting the length to a disulfide group subjected to metal bond to thereby enable effective formation of a metal-sulfur bond; novel ligand conjugate and ligand carrier, and a process for producing them. The linker compound is of a structure represented by the following general formula (1) where a, b, d, e are independently an integer of 0 to 6. X has a structure serving as a multi-branched structure moiety including three or more hydrocarbon derivative chains, wherein the hydrocarbon derivative chains each include an aromatic amino group at an end thereof, and may or may not include a carbon-nitrogen bond in a main chain thereof. The ligand conjugate includes the linker compound having a sugar molecule introduced therein.
Owner:JAPAN SCI & TECH CORP +1
Structure and method for synthesizing and using dialkyl(2,4,6- or 2,6-alkoxyphenyl)phosphine and its tetrafluoroborate
ActiveUS20120197030A1Easy to operateEfficient activationOrganic-compounds/hydrides/coordination-complexes catalystsCatalytic reactionsTetrafluoroboratePalladium catalyst
The current invention relates to the structure, synthesis of dialkyl(2,4,6- or 2,6-alkoxyphenyl)phosphine or its tetrafluoroborate, as well as its applications in the palladium catalyzed carbon-chlorine bond activation for Suzuki coupling reactions and carbon-nitrogen bond formation reactions. The dialkyl(2,4,6- or 2,6-alkoxyphenyl)phosphine or its tetrafluoroborate could coordinate with the palladium catalyst to activate the inert carbon-chlorine bond highly selectively and catalyze Suzuki coupling reaction with arylboronic acid or carbon-nitrogen bond formation reaction with organic amines. The current invention uses only one step to synthesize dialkyl(2,4,6- or 2,6-alkoxyphenyl)phosphine and its tetrafluoroborate is stable in the air. Compared with known synthetic routes of ligands used in activating carbon-chlorine bonds, the method of current invention is short, easy to operate. Moreover, with this type of ligands, the Suzuki coupling products of optically active chlorolactones and arylboronic acids would maintain their configuration and optical purity.
Owner:ZHEJIANG UNIV
A kind of poly(aryl ether ketone) and preparation method thereof
The invention provides polyaryletherketone and a method for preparing the polyaryletherketone. The polyaryletherketone is shown in the chemical formula (I). Compared with existing polyaryletherketone, the polyaryletherketone is characterized in that firstly, due to the fact that carbon-carbon bonds and ketone carbonyl bonds are used as connecting bonds in the aromatic nucleuses of the main chain of the polyaryletherketone, the content of oxygen atoms in the structure of the main chain is reduced, due to the fact that ether bonds are not contained, the trans-etherification effect produced when the molecular chains are heated is avoided, and heat resistance of polymer is improved; secondly, due to the fact that the number of the aromatic nucleuses in the main chain is increased, the rigidity of the main chain is improved, the thermal motion of the molecular chains is limited, and the polyaryletherketone has better dimensional stability; thirdly, due to the fact that imidazole monomers are introduced, the ether bonds which are connected to form the main chain are replaced by carbon-nitrogen bonds, the rigidity of the main chain is also improved due to the fact that imidazole rings are introduced, and the heat resistance of the polyaryletherketone is improved.
Owner:浙江帕尔科新材料有限公司
N-heterocyclic carbene palladium complex crystal, synthetic method thereof, and application thereof in preparation of amide compounds
ActiveCN110483582AIncrease electron densityHigh electron affinityOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsSynthesis methodsCarbene
The invention discloses an N-heterocyclic carbene palladium complex crystal, a synthetic method thereof and application thereof in preparation of amide compounds. The structural formula of the complexcrystal is shown in the specification, or the complex crystal is prepared from an N-heterocyclic carbene ligand, Pd(CH3CN)2Cl2 and Ag2O in acetonitrile serving as a solvent. The N-heterocyclic carbene palladium complex crystal is relatively stable, wherein the raw materials used in the synthesis method are cheap and easy to obtain, so that the synthetic method is simple, convenient and easy to implement is simple in post-treamtent and is high in yield; and the N-heterocyclic carbene palladium complex crystal is used for catalyzing carbonylation carbon-nitrogen bond coupling reaction to prepare amide compounds and is high in catalytic activity, easy to operate and high in atom economy.
Owner:SHAANXI NORMAL UNIV
Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
InactiveUS20050250959A1Cheap and practicalLow costOrganic compound preparationThiol preparationCarbon–carbon bondSulfide
Owner:MASSACHUSETTS INST OF TECH
Arylquinoline derivative synthesis method
The invention belongs to the technical field of organic synthesis, and specifically relates to an arylquinoline derivative synthesis method, wherein the synthesis of arylquinoline derivatives with diversified structures is achieved through palladium-catalyzed continuous carbon-carbon / carbon-nitrogen bond construction, and specifically a 2-arylquinoline derivative is prepared by using a compound (E)-3-(2-aniline)acrylonitrile and arylboronic acid as raw materials under a palladium catalyst system. According to the present invention, the method has characteristics of wide raw material source oreasy preparation, simple operation, controllable selectivity, high yield, mild conditions and wide applicability.
Owner:WENZHOU UNIVERSITY
Immobilized glycosidase reagent and preparing method thereof
InactiveCN105039302AGuaranteed stabilityImprove stabilityOn/in organic carrierOn/in inorganic carrierCarbon–nitrogen bondMagnetite Nanoparticles
The invention discloses an immobilized glycosidase reagent. The immobilized glycosidase reagent comprises a thermo-sensitive magnetic fluid carrier material and glycosidase. The glycosidase is fixed to the thermo-sensitive magnetic fluid carrier material. The thermo-sensitive magnetic fluid carrier material comprises thermo-sensitive monomers, monomers with active functional groups capable of being combined with the glycosidase and magnetic nano-particles with an initiator for surface-initiated atom transfer radical polymerization. The thermo-sensitive monomers and the monomers with the active functional groups capable of being combined with the glycosidase are copolymerized into a polymer chain, the copolymerized polymer chain and the magnetic nano-particles are connected through coordinate bonds. The polymer chain and the glycosidase are connected through carbon-nitrogen bonds. By means of the immobilizated glycosidase reagent, the immobilized carrying amount of the glycosidase of unit mass immobilized glycosidase reagent and the stability of the immobilized glycosidase reagent are obviously improved, the enzymolysis efficiency is improved, the time needed by the thermo-sensitive magnetic fluid immobilized enzyme to complete glycoprotein enzymolysis is extremely short, the sample treating efficiency is obviously improved, the sample purity is improved, and the mass spectrum identification result is improved.
Owner:BEIJING PROTEOME RES CENT
His-Vx3-eGFP protein-nano aluminum covalent coupling ubiquitinated protein containing carbon-nitrogen bonds as well as extraction method and application thereof
ActiveCN105777873AMild reaction conditionsReaction is easy to controlDepsipeptidesPeptide preparation methodsCarbon–nitrogen bondAdjuvant
The invention discloses a His-Vx3-eGFP protein-nano aluminum covalent coupling ubiquitinated protein containing carbon-nitrogen bonds as well as an extraction method and application thereof. The ubiquitinated protein is prepared through the following steps of: forming a conjugate of His-Vx3-eGFP protein and modified nano aluminum by virtue of carbon-nitrogen double bonds and incubating the conjugate and a treated tumor cell lysis solution. Compared with the prior art, obtained alpha-Al2O3-His-Vx3-eGFP is stable in property, is capable of greatly improving the ubiquitinated protein collection effect and simplifying experiment operation; in addition, the defect that adjuvants are added in use of an existing ubiquitinated protein vaccine is overcome.
Owner:SOUTHEAST UNIV
Highly durable antifogging coating film and coating composition
ActiveUS20190055410A1Good anti-fogging propertiesExcellent waterproofnessAntifouling/underwater paintsPolyether coatingsColloidal silicaCarbon–nitrogen bond
The present invention pertains to a coating film, and more particularly, to an antifogging coating film having excellent antifogging properties, ability to retain antifogging properties, and water resistance. The coating film according to the present invention contains a metal oxide (A) and a hydrophilic compound (B), wherein the elemental concentration ratio (C1s / M), which is between the element C and a metal element and which is obtained from a metal (M) spectrum derived from the metal oxide and a C1s spectrum in an elemental analysis of the surface using XPS, is within the range of 0.2-10. The relative elemental concentration of the element C obtained from a C1s spectrum derived from carbon-oxygen bonds and / or carbon-nitrogen bonds in elemental analysis of the surface using XPS may be within the range of 5-50 atomic %. The metal oxide may be colloidal silica. The coating film according to the present invention can be particularly preferably used as an antifogging coating film and a coating film for automotive exterior parts.
Owner:ASAHI KASEI KK
Synthesis method of nitrogenous heterocyclic quaternary salt compounds
InactiveCN109608459AImprove compatibilitySimple and safe operationOrganic chemistryCarbon–nitrogen bondOrganic solvent
The invention discloses a preparation method of nitrogenous heterocyclic quaternary salt compounds,and belongs to the field of organic synthesis. In an organic solvent, Rh(III) serves as a catalyst,inthe presence of an additive and an oxidizing agent, substituent 8-methylquinoline and eneyne react at a heating condition, and subsequently, hexafluoroantimonate is added to react to obtain nitrogenousous quaternary salt. According to the preparation method of the nitrogenous heterocyclic quaternary salt compounds, substituent 8-methylquinoline serves as a substrate and reacts with preliminarilyprepared 1,3-eneyne to directly build carbon-nitrogen bonds and carbon-carbon bonds,and the nitrogenous heterocyclic quaternary salt compounds are efficiently synthesized. The preparation method has relatively mild reaction conditions, a wide substrate range, high efficiency and excellent regioselectivity.
Owner:HENAN NORMAL UNIV
Versatile linker compound, ligand, and producing method thereof
InactiveUS7183067B2Good reproducibilitySugar derivativesEnzymologyCarbon–nitrogen bondChemical compound
A versatile linker compound has a structure represented by following general formula (1), wherein Y has a structure represented by O or NH, and X has a structure serving as a multi-branched moiety including four hydrocarbon derivative chains each of which has an aromatic amino group at an end thereof, and may or may not have a carbon-nitrogen bond in a backbone thereof. With the versatile linker compound, sugar molecules can be two-dimensionally arranged on a surface of a protein-analyzing supporter with high reproducibility. Also, a ligand includes the versatile linker compound and a sugar molecule introduced thereinto.
Owner:JAPAN SCI & TECH CORP +1
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