32results about "Potassium organic compounds" patented technology

The invention discloses a phase transfer catalyst of metal ion complexing crown ether for efficiently preparing aquacide dichloride and application of the phase transfer catalyst. The catalyst is prepared by taking crown ethers as 18-crown-6 and dicyclohexyl-18-crown-6 ether and complex ions as lewis acid active components such as potassium ions, lithium ions, cobalt ions, copper ions and the like through a direct chemical method. The catalyst synergistically catalyzes a nucleophilic substitution reaction of a pyridine derivative and alkyl halide in an aprotic polar solvent such as acetonitrile or nitrobenzene, and synthesis of diquat dichloride can be realized under the conditions of 60-140 DEG C, normal pressure and no oxygen. The mass ratio of the pyridine derivative to the catalyst to the solvent in a reaction system is 1: (0.001-0.05): (5-8), and real-time monitoring and regulation are performed through an online infrared spectrum, a liquid chromatograph and a gas chromatograph-mass spectrometer. The purity of the product is more than 99% after the product is subjected to filtration, recrystallization with an ethanol-water mixed solvent and vacuum drying. The catalyst provided by the invention has the characteristics of high activity, strong stability and recoverability, obviously improves the atom economy of the reaction, simplifies the production process, reduces the energy consumption and pollution, and is suitable for large-scale industrial production.

The invention discloses a low-dimensional organic-alkali metal-copper (I) halide supramolecular scintillator based on crown ether assisted self-assembly, a synthesis method thereof and application of the low-dimensional organic-alkali metal-copper (I) halide supramolecular scintillator in single crystal X-ray imaging. A series of supramolecular scintillators are successfully synthesized by adopting a supramolecular coordination strategy of crown ether (L) and alkali metal ions (M) and a saturated solution volatilization method. By optimizing the crown ether coordination mode, controllable preparation of large-size single crystals is achieved, the optical and X-ray imaging performance of the large-size single crystals is improved, a new thought is provided for research and development of novel high-performance X-ray scintillators, and the application potential of the supramolecular scintillators in the field of high-resolution single crystal X-ray imaging is expanded.

The present disclosure provides: a composition for an electrolyte solution, which can suppress an increase in resistance during low-temperature storage; and an electrochemical device, a secondary battery and a lithium-ion secondary battery, each of which uses this composition for an electrolyte solution. Also provided is a novel composition. More specifically, the present disclosure is a composition for an electrolyte solution, wherein the composition contains a compound (M) represented by formula (M). (M) Rf1 - COOM (In the formula, Rf1 is a 1-6 C fluoroalkyl group, and M is an alkali metal other than Li.)

The invention relates to a method for synthesizing a 3, 3-dimethoxy cyclobutane-1, 1-isopropyl diformate compound IV, and the reaction is as follows: M is selected from potassium, sodium, lithium, calcium and magnesium; comprising the following steps: (1) carrying out salt forming reaction on a compound shown as a formula I in an organic solvent in the presence of alkali, and filtering after the reaction is completed to obtain a solid compound shown as a formula II; and (2) carrying out ring closing reaction on the solid compound as shown in the formula II and a compound as shown in a formula III in an aprotic solvent in the presence of a catalyst to obtain a compound as shown in a formula IV. The method is simple in synthesis route, mild in process condition, simple and convenient to operate, high in yield and good in product purity, solves the technical problems of tar impurities and alcohol ester exchange byproducts in the prior art, and is suitable for industrial large-scale production.

To provide a cyclodextrin metal-organic framework that can be produced without requiring a prolonged duration or an excessive amount of organic solvents, and has an increased content of pharmacologically active substance, and a method for producing the same.SOLUTION: A cyclodextrin metal-organic framework includes cyclodextrin and alkali metal and is in the form of spherical and hollow fine particles.SELECTED DRAWING: None

The present invention relates to the use of alkali metal phenolic compounds of formula (I) or (II) as catalysts in the ring-opening polymerization of heterocycles such as cyclic esters, ethers and carbonates for the industrial production of biodegradable polymers. The present invention also relates to polymerization processes using these compounds.

The present invention relates to the use of alkali-metal phenolic compounds of formula (I) or (II) as catalysts in ring-opening polymerisation of heterocycles, such as cyclical esters, ethers and carbonates, for the industrial production of biodegradable polymers. The present invention also relates to a polymerisation method using the compounds.

Systems for piezoelectric composite materials are described. Various piezoelectric composite material structures and configurations can be incorporated into piezoelectric panels. Various methods are described to recycle and heal various piezoelectric composite materials.

Metal-organic frameworks (MOFs) may be prepared to contain a high loading of one or more hydrophobic adsorbates therein. Suitable metal-organic frameworks may exhibit stable retention of hydrophobic adsorbates within the pore space of the MOF, such as MOF loadings of at least 20% without appreciable environmental leaching over 24 hours. Certain hydrophobic adsorbates may exhibit unexpectedly higher photostability and UV absorption as compared to the respective free hydrophobic adsorbates.

To provide a composition for an electrolytic solution capable of suppressing resistance increase during low-temperature storage, and to provide an electrochemical device, a secondary battery and a lithium ion secondary battery using the composition for an electrolytic solution. Also provided are novel compositions.SOLUTION: A composition for an electrolytic solution, comprising a compound (M) represented by the following formula (M): (M) Rf1-COOM (wherein Rf1 is a fluoroalkyl group having 1 to 6 carbon atoms, and M is an alkali metal other than Li). ) SELECTED DRAWING: None

Disclosed are a metal-organic framework composite and a preparation method and use thereof. The metal-organic framework composite includes a cyclodextrin metal-organic framework (CD-MOF) material, and nano-silver and caffeic acid that are loaded in the CD-MOF material; wherein the nano-silver is loaded at 4% to 5% of a total mass of the composite; and caffeic acid is loaded at 11% to 12% of the total mass of the composite. The method for preparing the metal-organic framework composite includes: placing a CD-MOF material in an ethanol solution containing silver nitrate to obtain a first mixture, and subjecting the first mixture to a dynamic contact reaction in the dark to obtain a CD-MOF loaded with nano-silver; and placing the CD-MOF loaded with nano-silver in an ethanol solution containing caffeic acid to obtain a second mixture, and subjecting the second mixture to an incubation in the dark to obtain the composite.

Provided is a method by which various 2-((meth)allyloxymethyl)acrylic acid derivatives are produced in high yields with no need to load a raw material in a large excess for improving a reaction conversion ratio, and without use of a catalyst having high toxicity or a strong acid catalyst. Also provided are a novel compound that is a powder having a large bulk density and a novel compound that is a powder having a small water content, the compounds being utilizable as raw materials for synthesizing various chemical products. The method of producing a 2-((meth)allyloxymethyl)acrylic acid derivative according to at least one embodiment of the present invention includes causing the powder of a salt of a 2-((meth)allyloxymethyl)acrylic acid anion and an alkali metal cation (component A), and a halide (component B) to react with each other to produce a 2-((meth)allyloxymethyl)acrylic acid derivative. The 2-((meth)allyloxymethyl)acrylic acid alkali metal salt powder according to at least one embodiment of the present invention is the powder of a salt of a 2-((meth)allyloxymethyl)acrylic acid anion and an alkali metal cation, and has a bulk density of 0.50 g / mL or more, or a water content of 0.05 wt% or less.

A method for producing a compound of formula (1) R11X11—SO3M11, which includes reacting a compound of formula (3) R31O—SO2—OR32 and a metal alkoxide, wherein R11, X11 and M11 are as defined herein.

The invention relates to the use of alkali metal phenolic compounds of formula (I) or (II) as catalysts in the ring-opening polymerization of heterocycles, such as cyclic esters, ethers and carbonates, for the industrial production of biodegradable polymers. The invention also relates to a polymerization process using said compounds. # imgabs0 #

A one pot synthetic method for making a bridged cyclopentadienyl / fluorenyl type ligand and the corresponding ansa metallocene polymerization catalyst. In a key step, a cyclopentadienide / fluorenide dianion is prepared by combining a fluorene compound, a fulvene compound, and at least 2 molar equivalents of KN(SiMe3)2 in any order in the presence of an ether solvent under ambient conditions. Reaction of the cyclopentadienide / fluorenide dianion with a Group IV transition metal chloride, followed by alkylation gives a metallocene polymerization catalyst in good yields.

A compound is represented by Formula 1 below:wherein R1 to R4 are each independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a fluoro-substituted alkyl group having 1 to 6 carbon atoms, or a fluorine atom, wherein at least one among R1 to R4 is a fluorine atom, A is a divalent linking group, M1 and M2 are each independently potassium or sodium, and n and m are each independently an integer of 1 to 10.

The invention relates to a microemulsion comprising water in an amount of 1-30 w%; sodium or potassium oleate, Na / K salts of tall oil fatty acid, and / or Na / K salts of C16-C18 saturated or unsaturated fatty acids in an amount of 10-40 w%; oleic acid, tall oil fatty acid, or C16-C18 saturated or unsaturated fatty acids in an amount of 2-40 w%; ethanol in an amount of 0-40 w%; glycerol in an amount of 5-40 w%; and liquid hydrocarbon(s) in an amount of 5-40 w%, up to a maximum or total of components parts of 100 w%. Moreover, methods of manufacture and uses of the microemulsion are disclosed.

The present application relates to a series of compounds methyl trifluoroborate and methyl trifluoroborate nonlinear optical crystal and preparation method and use, the molecular general formula of the series of compounds is A3[CH3BF3]X2, wherein A=NH4, K, Rb, Cs, X=[NO3], Cl, Br, the molecular weight is 207.86-641.37, top seed method is prepared, orthorhombic system, space group Cmc 21 (No.36), the cell parameter is a=11.9141 (17)-12.6254 (2) Å, b=8.1556 (12)-8.4654 (17) Å, c=10.9621 (14)-11.5625 (15) Å, α =90, β =90, γ =90, Z =4, V=1065.2 (3)-1261.9 (1) Å 3 The series of compounds methyl trifluoroborate nonlinear optical crystal obtained by the method has the advantages of wide light transmission waveband, stable physical and chemical properties, moderate mechanical hardness, not easy to break, easy to cut, polish processing and preservation and the like.

The application discloses a kind of dimethylene pyridine bridged double aminophenol alkali metal complex and its preparation method and application in high activity catalytic lactone ring-opening polymerization.The preparation method includes the following steps: dimethylene pyridine bridged double aminophenol ligand is reacted with metal hydride in organic medium, then is filtered, concentrated, and the target dimethylene pyridine bridged double aminophenol alkali metal complex is obtained by recrystallization step.The dimethylene pyridine bridged double aminophenol alkali metal complex of the application is a kind of high-efficiency lactone ring-opening polymerization catalyst, and can be used for the polymerization reaction of high activity catalytic lactide etc.The dimethylene pyridine bridged double aminophenol alkali metal complex of the application has very obvious advantages: raw material is easy to obtain, synthesis route is simple, has high catalytic activity, can obtain high molecular weight polyester material, meets the needs of industrial department.The structural formula is as shown below:

The present invention relates to the use of alkali-metal phenolic compounds of formula (I) or (II) as catalysts in ring-opening polymerisation of heterocycles, such as cyclical esters, ethers and carbonates, for the industrial production of biodegradable polymers. The present invention also relates to a polymerisation method using the compounds.

Covalent organic frameworks (COFs), methods of making the COFs, and metal-ion batteries incorporating the COFs as solid electrolytes are provided. The COFs comprise a crosslinked core that includes triazine groups crosslinked to phenylene groups. Anionic substituents covalently bonded to the benzene rings of the phenylene groups in the crosslinked core provide immobilized hopping sites that lower the energy barrier for the migration of metal cations through the COF. The low migration energy barriers and directional channels within the COFs impart the COFs with a high ionic conductivities, even the absence of additional salts and solvents. The metal cations can be installed in the COFs during a one-step synthesis from available reactants.

The present disclosure relates to various compositions, related systems and articles, and methods of manufacture and use. In certain aspects, the present disclosure relates to compositions comprising nanostructured organic compounds, compositions comprising an organic compound and a metal organic framework embedded within the organic compound, and compositions comprising at least partially crystalline organic compounds and crystalline metal oxides dispersed within the organic compounds, related methods of manufacture (e.g., methods of depolymerizing polymers), methods of use (e.g., energy storage, contaminant removal), articles (e.g., electrodes), and systems (e.g., energy storage systems, systems including such energy storage systems). In certain aspects, the present disclosure relates to compositions comprising a silicon-containing material and a polymer made from an imide monomer, and related systems and articles, and methods of manufacturing and using the same.

To provide a method and a compound useful for depositing a metal and a metal-containing layer in a gas phase.SOLUTION: The invention relates to the use of a metal complex, which has at least one ligand of the formula R1-N3-R2, wherein R1 and R2 are hydrocarbon moieties, for depositing the metal or a compound of the metal from the gas phase. The invention further relates to methods for depositing metals from the metal complexes, and to metal complexes, substituted triazene compounds and methods for the production thereof.SELECTED DRAWING: Figure 14

Metal-organic frameworks (MOFs) may be prepared to contain a high loading of one or more hydrophobic adsorbates therein. Suitable metal-organic frameworks may exhibit stable retention of hydrophobic adsorbates within the pore space of the MOF, such as MOF loadings of at least 20% without appreciable environmental leaching over 24 hours. Certain hydrophobic adsorbates may exhibit unexpectedly higher photostability and UV absorption as compared to the respective free hydrophobic adsorbates.

A composition (100) for pan fire suppression is disclosed. The composition includes one or more chemicals adapted to suppress pan fire. The one or more chemicals includes 35-60 percent by weight of potassium acetate (120), 2-12 percent by weight of potassium citrate (130), 0-0.5 percent by weight of acticide (140), and 30-70 percent by weight of water (150). The composition (100) is a fire suppressant liquid adapted to extinguish fire when deployed in an oil pan (160) by a user.

To provide a complex catalyst that allows repeated use and is available at relatively low cost, the complex catalyst having hydrosilylation catalysis.SOLUTION: A hydrosilylation catalyst aid contains an alkali metal salt, the alkali metal salt being a salt represented by MalORal or a salt represented by MalOCORal (Mal is an alkali metal and Ral is a C1-6 linear or branched alkyl group or aryl group), or at least one selected from the group consisting of a carbonate, hydrogencarbonate, sulfate, phosphate, hydrogen phosphate, dihydrogen phosphate, nitrate, nitrite, and halide salt of alkali metal.SELECTED DRAWING: None

The invention relates to the technical field of organic synthesis, in particular to a deuterated alkyl metal compound and a preparation method and application thereof, and the deuterated alkyl metal compound is obtained by deuteration reaction of an alkyl metal compound and deuterium gas; through the specific preparation method, the deuterated alkyl metal compound with the deuterated rate of 100% can be obtained without using a large amount of deuterated water and without carrying out water separation operation for multiple times after the reaction; and when the prepared deuterated alkyl metal compound is used as an anionic polymerization initiator, the chemical stability is higher, so that the side reaction is reduced and the chain termination rate is reduced in the polymer preparation process, the molecular weight distribution index PDI of the finally obtained polymer is less than or equal to 1.1, the fluctuation of the molecular weight value between each batch is less than 5%, and the molecular weight is more than or equal to 1. The purpose of accurately controlling the molecular weight is achieved.

The invention relates to a deuterated near-infrared luminous rare earth complex and a preparation method thereof. The ionic type rare earth complex is [Yb (D-biqO2) 4] OTf3, D-biqO2 is a deuterated isoquinoline ligand, OTf is a trifluoromethanesulfonate radical, and the ionic type rare earth complex is an ionic type rare earth complex. According to the nonionic complex [(D-Binol) 3YbNa3 (thf) 6], D-Binol is a deuterated binaphthol anion ligand, and thf is a tetrahydrofuran solvent molecule. The emission spectrums of the two Yb (III) complexes are located in a near-infrared region, and the two Yb (III) complexes have high photoluminescence quantum yield and can be used as photoluminescence materials.

The disclosure relates to various compositions, related systems and articles, and methods of making and using the same. In some aspects, the disclosure relates to compositions containing a nanostructured organic compound, compositions containing an organic compound and a metal-organic framework embedded within the organic compound, and compositions containing an organic compound that is at least partially crystalline and a crystalline metal oxide distributed within the organic compound, as well as related methods of making (e.g., methods of depolymerizing polymers), methods of use (e.g., energy storage, contamination removal), articles (e.g., electrodes), and systems (e.g., energy storage systems, systems containing such energy storage systems) from the compositions of the disclosure. In some aspects, the disclosure relates to a composition that includes a silicon-containing material and a polymer made of imide monomers, as well as related systems and articles, and methods of making and using the same.

The invention relates to the technical field of organic synthesis, in particular to a method or a chemical synthesis route for synthesizing C5H5K (potassium cyclopentadienyl) and C5H10 (cyclopentane) by taking carbon dioxide and water in air as raw materials, and an equivalent amount of oxygen is inevitably produced while the C5H5K is produced. Stirring and reacting the carbon dioxide, water and 40-70% of KOH aqueous solution at the reaction temperature of 140-210 DEG C to obtain C5H5K; the carbon dioxide, water and 40-70% KOH aqueous solution are stirred to react at the reaction temperature of more than 210 DEG C and not more than 270 DEG C to prepare the cyclopentane. According to the method, the KOH aqueous solution is adopted to continuously absorb carbon dioxide in air to generate K2CO3, a large amount of reaction heat is inevitably and continuously released, and the raw material cost is almost zero, so that the cost for producing C5H6 (cyclopentadiene) and C5H10 (cyclopentane) by the method is reduced by 50-60% or above compared with the cost for industrially producing cyclopentadiene and cyclopentane at present.