36results about "Organic oxidation" patented technology

The present invention is directed to a solid state binder composition, in particular for preparing mineral fiber products.

Disclosed in the present invention is a method for directly preparing a phenol and an aldehyde or a ketone from an alkyl aromatic hydrocarbon as a raw material on the basis of a selective carbon-carbon bond oxidative cleavage reaction. The method is carried out on the basis of the following steps: mixing an alkyl aromatic hydrocarbon as represented by general formula (I) with a photocatalyst, hydrobromic acid, and an organic solvent and enabling the mixture to react under the conditions of oxygen as an oxidant and light irradiation to simultaneously prepare a phenol compound as represented by general formula (II) and a ketone or aldehyde compound as represented by general formula (III). In the present invention, bulk alkyl aromatic hydrocarbons are used as raw materials for reaction to produce phenol, aldehyde, and ketone organic chemical raw materials. Compared with traditional synthesis methods, the present invention has many advantages such as inexpensive and readily available catalysts, mild reaction conditions, simple operation, good selectivity, and high safety, is suitable for large-scale synthesis of phenols, p-cresol, cyclohexanone, etc., and exhibits wide application prospects.

The present invention is a liquid composition containing, one or more compounds selected from compounds selected from a specific uronium salt, a specific halouronium salt and a specific thiazolium salt represented by specific formulas and water, the composition being acidic.

A molecule having a formula (7) for use as a fuel in a combustion engine: and wherein said molecule is a di(2-ethylhexyl) ether.

This invention discloses a parallel-interface engineered viologen-based defective carbon nitride composite material, its preparation method, and its applications, belonging to the field of energy catalysis and photochemical materials technology. The material comprises: a defective graphitic carbon nitride support; single-atom platinum catalytic sites supported on the support; and a selenium-containing viologen compound anchored by covalent bonds in a configuration parallel to the support surface. Through a bilateral covalent bonding strategy, viologen molecules are stably anchored in a parallel configuration to the single-atom platinum-modified defective carbon nitride surface, constructing a highly efficient and stable "electron bridge" structure, significantly enhancing interfacial bonding and photogenerated electron transport efficiency. This composite material exhibits excellent photocatalytic hydrogen evolution activity and efficient coupling ability with benzylamine oxidation under visible light, and its activity retention rate reaches over 92% after 144 hours of cycling. It provides a new paradigm for solving the problem of poor interfacial stability in photocatalysts and has significant application prospects in the field of solar fuel synthesis.

A process, a composition, and an article of manufacture are disclosed. The process includes generating a cyclic monoterpene derivative. The generating includes oxidizing a cyclic monoterpene to generate a ketone derivative and oxidizing the ketone derivative to form a lactone derivative. The composition and the article of manufacture include a polymer having monomer repeat units derived from a lactone derivative of a cyclic monoterpene.

The present invention is a composition containing, (A) one or more compounds selected from a compound represented by the following general formula (A1) and a compound represented by the following general formula (A2) and water, the composition being acidic, wherein R1 is an alkyl group with 1 or more and 24 or less carbons which may contain a heteroatom, R12 is a group with 1 or more and 24 or less carbons in total which contains a carbon atom and a heteroatom of an ion paired with N+ of the pyridine ring and which may contain a heteroatom different from the heteroatom, L is n halogen atoms, n being 1, 2 or 3, and L is bonded to any n different carbon atoms at positions 2, 4 and 6 of the pyridine ring, A- is an anion, and a group other than L may be bonded to a carbon atom other than the carbon atom bonded to L of the carbon atoms of the pyridine ring.

This invention utilizes mechanical vapor compression and / or thermal vapor compression, integrating compression loops across multiple process stages. A sequential network of compressors is used to increase the pressure and condensation temperature of vapor within each process stage as an internal vapor flow, and as an inter-vapor flow branching between process stages. Because available vapor is shared between compressor stages, the number of compressors can be reduced, improving economics. By separating vapor between compressor stages to balance the vapor mass flow rate across multiple process stages in the incremental compressor stages, the entire vapor compression system can be customized to individual process energy requirements and adapt to dynamic fluctuations in process conditions.

The present document relates to a process and system for continuous oxidation of a substance comprising one or more of a primary hydroxy group, an aldehyde group and / or a carbonyl group in which process carbon dioxide formed in the oxidation reaction is separated from nitrogen-containing off-gases of the reaction The nitrogen-containing off-gases are then recycled.

The present invention provides a method for producing kakeromycin and its derivatives by chemical synthesis, which show antifungal activity and cytotoxicity and are expected to be novel antifungal agents and anticancer agents. The present invention relates to a method for producing a compound represented by formula (1) or a salt thereof, which comprises: subjecting a compound represented by formula (2) or a salt thereof to an oxidation reaction. [In formula (2), R represents an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group, and n represents 0 or 1. ][In formula (1), R and n have the same meaning as above. ].

The present invention is a liquid composition containing, one or more compounds selected from compounds selected from a specific uronium salt, a specific halouronium salt and a specific thiazolium salt represented by specific formulas and water, the composition being acidic.

Disclosed are methods for converting a hydrocarbon reactant to an alcohol compound and / or a carbonyl compound, wherein the hydrocarbon reactant is irradiated with a light beam having a wavelength in the ultraviolet-visible spectrum, optionally in an oxidizing atmosphere, with a supported transition metal catalyst comprising molybdenum, tungsten, or vanadium to form a reduced transition metal catalyst, followed by hydrolysis of the reduced transition metal catalyst to form a reaction product comprising the alcohol compound and / or the carbonyl compound.

The present invention relates to a process for the preparation of (15α,16α,17β)-estra-1,3,5(10)-triene-3,15,16,17-tetrol, also known as estetrol, and estetrol monohydrate, having the formulas shown below:

Processes for converting a hydrocarbon reactant into an alcohol compound and / or a carbonyl compound are disclosed in which the hydrocarbon reactant and a supported transition metal catalyst—containing molybdenum, tungsten, or vanadium—are irradiated with a light beam at a wavelength in the UV-visible spectrum, optionally in an oxidizing atmosphere, to form a reduced transition metal catalyst, followed by hydrolyzing the reduced transition metal catalyst to form a reaction product containing the alcohol compound and / or the carbonyl compound.

A catalyst containing, as an essential component, molybdenum; bismuth; and cobalt, in which a sum (S) of ratios of peak intensities expressed by the following formula in an X-ray diffraction pattern obtained by using CuKα rays as an X-ray source is 42 or more and 113 or less. S=peakintensityat2θ=14.1°±0.1°+peakintensityat2θ=25.4°±0.1°+peakintensityat2θ=28.5°±0.1° / peakintensityat2θ=26.5°±0.1°×100

The present disclosure relates to methods for dealkenylative amination. The present disclosure additionally relates to methods for dealkenylative azidation.

The present invention belongs to the technical field of organic intermediate synthesis, and provides a method for light-promoted oxidation of a compound containing a saturated carbon-hydrogen bond, comprising: mixing a compound containing a saturated carbon-hydrogen bond with a catalyst, and oxidizing the compound containing a saturated carbon-hydrogen bond in an oxygen or air atmosphere at a temperature of 20°C to 100°C under light irradiation to generate an oxidation product. The present method is a method for the light-promoted direct oxidation of a compound containing a saturated carbon-hydrogen bond, which only requires a relatively low temperature to be carried out, has good compatibility with functional groups, short reaction time, high reaction efficiency, low reaction costs, high added value, simple operation and good safety, and is a mild, green and environmentally friendly oxidation method.

The invention discloses a carrier with high specific surface area, a preparation method and application, the carrier is prepared from a polymer, the polymer is polyethylene glycol, and the carrier structure is a shell structure. According to the process for preparing the shell structure by using PEG (800, 1000, 2000 and 4000) with different molecular weights on the gamma-AlO carrier, the thickness of the coating is reduced along with the increase of the molecular weight, so that the performance of the film layer can be optimized by regulating and controlling the molecular weight of PEG. The method is simple in process, environment-friendly, easy to industrially amplify and suitable for the fields of petrochemical engineering, fine chemical engineering, environmental governance, energy, pharmacy and the like, and an innovative path is provided for efficient and green catalyst development.

The present disclosure relates to methods for dealkenylative amination. The present disclosure additionally relates to methods for dealkenylative azidation.

The invention discloses a super-gravity nano-micro bubble generating device for a large-circulation-volume reaction system and application. The super-gravity nano-micro bubble generating device comprises a rack, a motor, a coupler, a rotating shaft, a rotor, a gas-liquid inlet, a super-gravity outlet liquid distributor, a circulation liquid phase inlet and a gas-liquid outlet. The rack comprises a rack lower part and a rack upper part; a first containing cavity is formed in the lower portion of the rack and used for containing the motor and the coupler. The motor is fixedly connected with the rotor through a coupler and a rotating shaft penetrating through the top of the first containing cavity from bottom to top in sequence. The top end of the lower rack part is fixedly connected with the lower end of the upper rack part in a matched mode, and a hollow second containing cavity is formed in the upper rack part and used for containing a rotor; the device can effectively solve the problems that when a supergravity nano-micro bubble generating device is applied to hydrogenation, oxidation, hydroformylation and other reactions, strong heat release is achieved, and in the circulation process of a large number of materials, the device treatment load is high, and energy consumption is large.

The present invention discloses a preparation method of an iridium dimer catalyst, and the iridium dimer catalyst is Ir2Cl2C 16 H 24 dimer, comprising: dissolving an iridium-containing and chlorine-containing compound in distilled water and injecting it into a raw material tube to obtain solution A; mixing cyclooctadiene and a reducing agent acid and injecting them into another raw material tube to obtain solution B; slowly injecting solutions A and B into a continuous reactor simultaneously for cyclic reaction. The method of the present invention abandons the conventionally used reactants (alcohols and aldehydes), uses a novel reactant (acid), and adopts a continuous flow reaction, which can shorten the reaction time and obtain high-purity Ir2Cl2C 16 H 24 dimer with a yield as high as 97%; and potassium permanganate is used to neutralize the mercury catalyst during the waste liquid treatment process to generate a mercury complex precipitate from the excess cyclooctadiene in the waste liquid, greatly reducing the environmental pollution of the waste liquid and facilitating batch industrialization. The present invention reduces the dosage of cyclooctadiene, reduces waste liquid treatment, and lowers the production cost.

A molecule having a formula (7) for use as a fuel in a combustion engine: and wherein said molecule is a di(2-ethylhexyl) ether.

The present invention provides a method for producing kakeromycin and its derivatives by chemical synthesis, which exhibit antifungal activity and cytotoxicity and are expected to be novel antifungal and anticancer agents. The present invention relates to a method for producing a compound represented by formula (1) or a salt thereof, which comprises: subjecting a compound represented by formula (2) or a salt thereof to an oxidation reaction. [In formula (2), R represents an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group, and n represents 0 or 1. ][In formula (1), R and n have the same meanings as above. ]

The present invention is a composition containing, (A) one or more compounds selected from a compound represented by the following general formula (A1) and a compound represented by the following general formula (A2) and water, the composition being acidic, wherein R1 is an alkyl group with 1 or more and 24 or less carbons which may contain a heteroatom, R12 is a group with 1 or more and 24 or less carbons in total which contains a carbon atom and a heteroatom of an ion paired with N+ of the pyridine ring and which may contain a heteroatom different from the heteroatom, L is n halogen atoms, n being 1, 2 or 3, and L is bonded to any n different carbon atoms at positions 2, 4 and 6 of the pyridine ring, A- is an anion, and a group other than L may be bonded to a carbon atom other than the carbon atom bonded to L of the carbon atoms of the pyridine ring.

The present invention belongs to the field of organic intermediate synthesis technology and provides a method for the photo-promoted oxidation of a saturated carbon-hydrogen bond-containing compound, which comprises mixing the saturated carbon-hydrogen bond-containing compound with a catalyst, and oxidizing the saturated carbon-hydrogen bond-containing compound under an oxygen gas or air atmosphere, irradiating light and at a temperature of 20° C. to 100° C. to produce an oxidation product. This method is a direct oxidation method for a saturated carbon-hydrogen bond-containing compound promoted by light, which can be carried out at a relatively low temperature, has good compatibility of functional groups, a short reaction time, high reaction efficiency, low reaction cost, high added value, simple operation, good safety, and is a mild and environmentally friendly oxidation method.

Provided are a catalyst loaded with a TEMPO-type compound, and a preparation method and use thereof. The catalyst loaded with the TEMPO-type compound uses a polymer resin as a carrier, and the polymer resin is a polystyrene resin containing a chloromethyl or bromomethyl, herein the content of the chloromethyl or bromomethyl in the polymer resin is 0.5-5.0 mmol g−1.

The present invention is a liquid composition containing (A) an isoxazolium salt and water, the composition being acidic.

α,β-Unsaturated aldehydes are useful products as such in agrochemistry, but also potential intermediates for the preparation of important insect pheromones and kairomones. Until now, primarily the thermodynamically more stable (E)-α,β-unsaturated aldehydes have been identified as useful intermediates in the production of conjugated diene pheromone compounds, however, their practical and cost-effective synthesis on an industrial scale remains challenging. The problem to be solved by the present invention is to provide a method for selective oxidation of alkenes to α,β-unsaturated carbonyls which can be further transformed into pheromones and kairomones preferably without isolation and significant loss of the existing stereochemical purity.

The present invention relates to a process for preparation of 3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazo 1-4-ylmethylsulfonyl]-4,5-dihydro-5,5-dimethyl-1,2-oxazole and its intermediates. The present invention provides a process for preparation of 3-({[5-fluoro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl}sulfanyl)-5,5-dimethyl-4,5-dihydro-1,2-oxazole and 3-({[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl}sulfanyl)-5,5-dimethyl-4,5-dihydro-1,2-oxazole in the absence of N,N-dimethyl formamide.