31 results about "Decane" patented technology

The application discloses a preparation method of an important intermediate of a pyrimidine-4(3H)-ketone heterocyclic compound shown in formula h, namely a preparation method of (3S,4S)-tert-butyl 4-((R)-1,1-dimethylethylsulfinamido)-3-methyl-2-oxa-8-azaspiro[4.5]decane-8-carboxylate, which is synthesized through a series of reactions such as substitution, reduction, nucleophilic addition, reduction and deprotection, ring closure, oxidation and reductive amination and the like by taking L-methyl lactate as a raw material. In the application, red aluminum is used to replace lithium borohydride and tetrabutylammonium fluoride in the prior art, so that the problems of the risk caused by the use of lithium borohydride and the difficulty in post-treatment caused by the use of tetrabutylammonium fluoride in the prior art are overcome, the reaction steps are shortened, and the post-treatment operation is simplified.

The invention relates to a two-component dual-curing submarine cable water-blocking pouring sealant, which is composed of a component A and a component B according to a mass ratio of 1: 0.3-1, the component A comprises tricyclodecane modified hydroxyl-terminated polybutadiene, tertiary carbonate epoxy acrylate, polybutadiene, an acrylate-silicon dioxide nano composite material and a silane coupling agent, and the component B comprises a component C, a component D and a component E according to a mass ratio of 1: 0.3-1. A catalyst, a photoinitiator, an antioxidant, a defoaming agent and a polymerization inhibitor; the component B is prepared from an organic silicon modified dual-curing prepolymer, isocyanate and polybutadiene. The dual-component dual-curing submarine cable water-blocking pouring sealant can be subjected to UV and polyurethane dual curing, has excellent flowability and infiltration permeability, can be used for quickly and completely filling even a narrow gap, does not empty, does not generate a bubble defect, has high dual curing efficiency, and has relatively good water-blocking performance, electrical insulation performance and excellent high and low temperature resistance; long-term use reliability is stable, and submarine cables are effectively protected from seawater erosion.

The application relates to the technical field of catalysts, in particular to a Pickering emulsifier silica nanonet and a preparation method and application thereof. The preparation method comprises the following steps: dissolving cetyltrimethylammonium chloride in water, uniformly mixing, and adjusting the pH to 10; placing the cetyltrimethylammonium chloride solution in a water bath, adding an ethyl silicate n-decane solution, carrying out reaction after homogenization emulsification, and cooling, suction filtering, washing, drying, crushing to obtain the Pickering emulsifier silica nanonet. The Pickering emulsifier silica nanonet preparation method is simple and can be mass-produced. The degradation efficiency of polyester is high, and a high alcoholysis efficiency can be achieved at a lower reaction temperature and in a very short reaction time.

Disclosed is a composition for cleaning and regenerating the hydrophobicity of the surface of a transparent polymeric material of high optical quality, characterized in that it comprises 20% to 40% by weight of a first liquid mixture of 0.2% to 3% by weight of paraffin and 97% to 99.8% by weight of a petroleum solvent that lies between heptane and decane, and 50% to 85% by weight of a second liquid mixture of 0.2% to 8% by weight of a surfactant having a molecular weight at most equal to 150 g / mol, 2-butoxyethanol, and 4% to 15% by weight of ethanol, the remainder to 100% being water; a method for cleaning and regenerating the hydrophobicity of the surface of a transparent polymeric material of high optical quality by means of this composition.

The invention relates to a novel salt of 8, 8-difluoro-3-(2-(4-(4-methylpyridazine-3-yl) phenyl)-2-oxoethyl)-1, 3-diazaspiro [4.5] decane-2, 4-dione, and a preparation method of the novel salt. More specifically, the present invention relates to a benzene sulfonate salt (BSA-salt). The invention also relates to a preparation method of a composition containing the salt and application of the salt.

The present invention relates to a process for the synthesis of the anti-haemorrhagic agent (R)-N-hydroxy-2-((4-(4-(methylcarbamoyl)phenoxy)phenyl)-sulfonyl)-8- azaspiro[4.5]decane-2-carboxamide and intermediates thereof. The invention also relates to a process for the preparation of a synthetic intermediate of said anti- haemorrhagic agent, (R)-8-(tert-butoxycarbonyl)-2-((4-fluorophenyl)sulfonyl)-8- azaspiro[4.5]decane-2-carboxylic acid and intermediates thereof.

The invention relates to the field of synthesis of drug intermediates, in particular to a preparation method of 3-oxo-1-oxa-8-azaspiro [4.5] decane-8-tert-butyl formate. The preparation method comprises the following steps: carrying out condensation reaction on a compound III (4-ethoxycarbonyl methylene-1-tert-butyl piperidinecarboxylate) and methyl glycolate to generate a five-membered ring, and preparing to obtain a compound IV; according to the preparation method, tert-butyl 3-oxo-1-oxa-8-azaspiro [4.5] decane-8-formate (compound I) is prepared through a decarboxylation reaction of the compound IV, and the total yield of the reaction can reach 88.73%. The preparation method provided by the invention has the advantages of easily available raw materials, simple operation and high reaction yield.

The present invention relates to 3(4),8(9)-bisformyltricyclo[5.2.1.0 2,6 According to the present invention, a separate catalyst recovery step is not required, and 3(4),8(9)-bisformyltricyclo[5.2.1.0]decane can be produced with high conversion and purity. 2,6 ] decane (TCDDA) can be produced.

The invention belongs to the technical field of azaspiro structure compound synthesis. The method is easy and convenient to operate, only a reaction substrate and a solvent are needed, oxygen in air serves as an oxygen source, and an oxidizing agent, a metal catalyst and the like do not need to be additionally added. Visible light is utilized to promote uniform cracking of diselenide, and selenium-based free radicals are the key of the reaction. The target product simultaneously contains a selenium and spiro bifunctional skeleton. The invention provides a synthesis method of phenylseleno-substituted 4-azaspiro [4.5] decane. The synthesis raw materials are an N-(4-methoxyphenyl)-N-(benzenesulfonyl) methacrylamide derivative and a diphenyl diselenide derivative. The synthesis method comprises the following steps of: synthesizing 4-azaspiro [4.5] decane, the reaction equation of the synthesis is shown in the specification.

The present invention describes the gold-catalyzed construction of geminocyano-substituted tricyclic [4.4.0.0] 1,5 The method for synthesizing the decane skeleton belongs to the field of organic synthesis technology. Compound 1 is added to an organic solvent, and the reaction is carried out at 25℃-80℃ for 3 hours in the presence of a gold catalyst and additives to obtain product compound 2. The gold catalyst is selected from triphenylphosphine monochloride, triphenylphosphine gold(I) 3-methylbenzotriazole salt, and triphenylphosphine gold(I) trifluoromethanesulfonate. The additive is selected from silver trifluoromethanesulfonate, silver fluoroantimonate, and silver bis(trifluoromethanesulfonylimide). The synthetic method described in this invention is simple to operate, low in cost, highly efficient, and widely applicable, possessing practical application value. Substrate 1 in this invention can be flexibly derivatized by adjusting the structure of its synthetic raw materials or through subsequent functionalization modifications, providing greater convenience for skeleton modification. This invention utilizes the properties of gold catalysts to achieve rapid and convenient synthesis of fused-ring skeletons containing three-membered rings that are difficult to synthesize under other conditions.

The application belongs to the technical field of medicine synthesis process, and particularly relates to a preparation method of high-yield and high-purity buspirone hydrochloride. The application takes 8-(2-pyrimidyl)-8-azido-5-5-azospiro[4.5]decane hydrobromide (referred to as pyrimidine piperazine quaternary ammonium salt) and 3,3-tetramethylene glutarimide as raw materials, takes a mixed solvent of toluene, normal pentanol and / or normal hexanol as a solvent, does not need to add a phase transfer catalyst, and can generate buspirone in the presence of sodium carbonate. After acid adjustment and extraction, toluene is removed in the reverse phase, the water phase is adjusted to be alkaline, toluene is extracted, hydrogen chloride ethanol solution is added, and buspirone hydrochloride solid is directly precipitated. The preparation process has a good removal effect on impurities, the obtained buspirone hydrochloride has high purity, high process yield, good atomic economy and small three-waste output.

Compositions and coatings for thin films designed to protect surfaces and windows from environmental abrasion (e.g., sand, dust, and rubbing) that are transparent in visual and infrared wavelengths are disclosed. The compositions comprise thiol-containing copolymers comprising: (1) 10-(3-butyl-2-hexyl-6-(9-mercaptononyl)cyclohexyl) decane-1-thiol; and (2) a multifunctional terminally unsaturated hydrocarbon monomer; wherein (1) and (2) are combined to form a UV curable crosslinked thermoset polymer network and no particulate fillers are added to the composition. The films exhibit a specular transmission of greater than 70% in the visual spectrum at about 400-700 nm, and IR wavelengths at about 4-5 μm, and about 7.5-12 μm when applied to a surface of a substrate in a coating thickness of about 1-500 μm. A method for making the films involving an UV initiated thiol-ene curing mechanism is also provided.

The invention discloses a preparation method of a flame-retardant reinforced polypropylene composite material, and belongs to the technical field of polypropylene composite materials. The preparation method of the flame-retardant reinforced polypropylene composite material comprises the following steps: mixing the modified ammonium polyphosphate and the carbon microspheres for reaction to obtain a first mixture; polypropylene and modified hydrotalcite are mixed, and a second mixture is obtained; mixing and reacting the first mixture and the second mixture to obtain a third mixture; and finally, mixing the third mixture, melamine urate and an auxiliary agent, carrying out melt blending, extrusion and granulation on a double-screw extruder, and carrying out injection molding to obtain the composite material. Wherein the modified ammonium polyphosphate is obtained by modifying ammonium polyphosphate with a silane coupling agent; the modified hydrotalcite is obtained by modifying calcium aluminum hydrotalcite with 1, 10-bis (4-benzoic acid oxygen group) decane; the carbon microspheres are obtained by taking beer as a precursor, performing hydrothermal reaction and activating by adopting zinc chloride; the flame-retardant reinforced polypropylene composite material prepared by the preparation method disclosed by the invention is relatively good in flame retardance and relatively good in mechanical property.

The present invention provides a chemical liquid having excellent defect suppressing properties. The present invention further provides a chemical liquid storage body containing the chemical liquid. The chemical liquid of the present invention is a chemical liquid containing a compound other than an alkane and an alkene, and one or more organic solvents selected from the group consisting of decane and undecane, in which the chemical liquid further contains one or more organic components selected from the group consisting of alkanes having 12 to 50 carbon atoms and alkenes having 12 to 50 carbon atoms, and a content of the organic component is 0.10 to 1,000,000 mass ppt with respect to a total mass of the chemical liquid.

To provide a method for synthesis of diazabicyclo[6.2.0]decane compounds.SOLUTION: The synthesis proceeds by stereoselective synthesis of a chiral lactone followed by azetidine formation via a series of chemoselective reactions. Bicyclization results with the formation of diazobicyclo[6.2.0]decane related compounds.SELECTED DRAWING: None

The application relates to a preparation method of buspirone hydrochloride: (1) 1-(2-pyrimidyl)-piperazine is reacted with hydrogen chloride ethanol solution to prepare 1-(2-pyrimidyl)-piperazine dihydrochloride; (2) 1-(2-pyrimidyl)-piperazine dihydrochloride is reacted with alkali and 1,4-dibromobutane to prepare 1-(4-bromobutyl)-4-(2-pyrimidyl)-piperazine; (3) 1-(4-bromobutyl)-4-(2-pyrimidyl)-piperazine is reacted with alkali and 3,3-tetramethylene glutarimide to prepare 8-[4-[4-(2-pyrimidyl)-1-piperazine]butyl-8-azaspiro[4,5]decane-7,9-diketone; (4) 8-[4-[4-(2-pyrimidyl)-1-piperazine]butyl-8-azaspiro[4,5]decane-7,9-diketone is added into isopropyl alcohol to react to obtain the product. The application improves product purity and reaction yield, does not use a catalyst, reduces cost, and shortens a production cycle.

The invention discloses a catalytic system based on liquid organic hydrogen carrier hydrogenation and dehydrogenation and application, and belongs to the technical field of hydrogen energy storage and transportation. The catalytic system provided by the invention comprises an LOHC composition and a bimetallic catalyst composition, wherein the LOHC composition comprises decane and perhydrogenated N-ethyl carbazole in a mass ratio of 80: 20, and the bimetallic catalyst composition comprises a Pt / Ni bimetallic catalyst and a supporting material. The catalytic system can be used in the LOHC dehydrogenation and hydrogenation reaction process, the whole system is excellent in stability, and compared with an existing precious metal single-component catalyst and a single LOHC system, the cost is reduced by 40%; the hydrogen storage and release system has the advantages of high-efficiency hydrogen storage and release, normal-temperature liquid-state safe transportation, environmental protection and no blockage, and can be widely applied to the scenes of fuel cell vehicle hydrogen energy supply, industrial large-scale hydrogen storage and the like.

The application provides a phase diagram drawing method, device, system and storage medium, and belongs to the field of oil and gas development.The method comprises the following steps: obtaining initial methane molar percentage and initial decane molar percentage from a fluid component sample, and importing methane property parameters, decane property parameters and environmental parameters; analyzing gas-liquid coexistence of the initial methane molar percentage, the initial decane molar percentage, the methane property parameters, the decane property parameters and the environmental parameters, and obtaining a to-be-processed molar percentage parameter according to an analysis result; calculating fugacity of the to-be-processed molar percentage parameter, the methane property parameters, the decane property parameters and the environmental parameters, and obtaining a target gas phase molar percentage according to a calculation result.The application improves the drawing precision, reduces the drawing difficulty, saves the drawing time, and solves the problem of not easy convergence in calculating critical parameters.

The application discloses a simulation method of a carbon hydrogen fuel regenerative cooling coking process based on CFD, and belongs to the field of active thermal protection of hypersonic aircrafts. The simulation method comprises the following steps: carbon hydrogen fuel is replaced by n-decane, a coking process of the carbon hydrogen fuel comprises catalytic coking and aromatic cluster coking, and a secondary cracking model of n-decane is adopted for simulation and adaptation of the coking process. A two-dimensional circular tube geometric model is adopted, a suitable model and a solver are selected in ANSYS Fluent, relevant physical properties and boundary conditions are defined, and steady-state calculation is carried out; the steady-state calculation result is used as an initial condition of a transient coking process, and a dynamic accumulation process of a coking layer is realized through a dynamic mesh technology in ANSYS Fluent. The application belongs to direct simulation of coking, realizes simulation of accumulation and growth of the coking layer, and can be used for evaluating the influence of coking on the flow heat exchange performance of the regenerative cooling fuel, thereby providing a reference for subsequent optimization and improvement of the regenerative cooling.

The invention discloses a regeneration liquid of a diphenylamine catalyst synthesized from aniline. The regeneration liquid is prepared from the following components in parts by mole: 15 to 65 parts of N, N-dimethylformamide, 10 to 30 parts of tetrahydrofuran, 10 to 40 parts of N-methyl pyrrolidone and 10 to 60 parts of n-decane. The regeneration liquid provided by the invention can effectively soften and dissolve carbon deposits generated at the initial stage in the process of synthesizing diphenylamine from aniline, especially polyaniline-like carbon deposits, and coke carried outside the polyaniline carbon deposits and further generated falls off together, so that the catalyst can be thoroughly decarbonized to obtain a better regeneration effect.

The application provides a synthesis method of (3R,4S)-3-methyl-2-oxa-8-azaspiro[4.5]decane-4-amine hydrochloride (compound I), and a synthesis route of the compound I is as follows: wherein X is halogen. The preparation method has the advantages of short synthesis steps, single reaction product configuration, avoidance of chiral resolution in post-treatment and high yield, and provides an efficient synthesis method for the compound.

This invention relates to a catalyst for the selective reduction of NOx, said catalyst being based on IZM-10 AEI zeolite and at least one transition metal, and a method for its preparation, said method comprising at least mixing the following substances in an aqueous medium: FAU-type zeolite, whose SiO2... 2(FAU) / Al2O 3(FAU) The process involves: ii) a molar ratio of 10 to 60 (inclusive) and less than 0.005% by mass of sodium in cationic form, a nitrogen-containing organic compound R (wherein R is (6R,10S)-6,10-dimethyl-5-aza-onium spiro[4,5]decane in hydroxide form), and optionally sodium hydroxide, until a homogeneous precursor gel is obtained; iii) a hydrothermal treatment step; iii) a step of at least one ion exchange with a solution containing at least one substance capable of releasing a transition metal; and iv) a heat treatment step by drying and calcination.

The application relates to the technical field of cetane number testing, and discloses standard fuel and application of the standard fuel in a fuel cetane number determination method. The standard fuel comprises low-cetane-number normal standard fuel and high-cetane-number normal standard fuel; wherein the low-cetane-number normal standard fuel is a hanging type tetrahydrodicyclopentadiene, and the high-cetane-number normal standard fuel is selected from one of normal dodecane, normal decane and normal tetradecane. The standard fuel provided by the application has a good volume linear relationship, strictly meets the requirements of normal standard fuel, can expand the cetane number determination range of test fuel to 21.88-81.19, can greatly reduce the test cost, and is suitable for promotion.

The invention discloses a deodorizing method of a regenerated polypropylene material. According to the deodorizing method of the regenerated polypropylene material, supercritical CO2 extraction treatment is carried out on the regenerated polypropylene material by adopting an extracting agent, wherein the extracting agent comprises supercritical CO2 and a cosolvent; wherein the volatile odor substance of the regenerated polypropylene material comprises one or more of isoparaffin with 10 to 20 carbon atoms, isoolefin with 10 to 20 carbon atoms, decane, n-dodecane, n-tetradecane, octanal, hexanal, limonene, isoterpinene, octanone and terpene alcohol. The odor removal method can effectively remove volatile odor substances in the regenerated polypropylene material, and the odor grade of the obtained regenerated polypropylene material can meet the application requirements of automotive interiors.

A small crystal borosilicate zeolite having the framework structure of SSZ-43 is provided. The zeolite may be synthesized by (a) preparing a synthesis mixture comprising a boron atom source, a silicon atom source, a structure directing agent comprising a (6R, 10S)- 6,10-dimethyl-5-azaspiro[4.5]decane cation, a source of hydroxide ions, a source of an alkaline and / or alkaline-earth metal, beta zeolite seeds, and water; (b) heating the synthesis mixture under crystallization conditions including a temperature of from 100°C to 200°C for a time sufficient to form crystals of the borosilicate zeolite; and (c) recovering at least a portion of the borosilicate zeolite from step (b).

The invention discloses a process route for synthesizing 4-[4-(1, 1-dimethylethyl) phenyl]-1, 4-oxothiaonium salt and 1-(5, 5, 6, 6-tetrafluorospiro [1, 3-dioxane naphthene-2, 2 '-tricyclo [3.3. 1.13, 7] decane]-5'-yl) 2, 2-difluoro-2-sulfoacetate, cation fragments are provided by bis (4-tert-butylphenyl) iodine trifluoromethanesulfonate, and the cation fragments are provided by bis (4-tert-butylphenyl) iodine trifluoromethanesulfonate. According to the synthetic route, thioxane sulfonate is formed through substitution, then ion exchange is carried out, and finally the obtained intermediate is subjected to ketal to obtain the target photoacid generator product. By optimizing reaction conditions and a process route, the use amount of resin is reduced, side reactions are effectively controlled in the front stage of the process, the purity, stability and yield of the photoacid generator are improved, the metal content and halogen content of the compounds are reduced, and the yield of the photoacid generator is improved. The requirements of modern microelectronic manufacturing on a high-performance photoacid generator are met.

The present application relates to the technical field of polyimide film preparation, and in particular to a preparation method of high-toughness polyimide nanofiber film. The preparation method comprises a step of synthesizing polyamide acid, and further comprises a step of property regulation of a spinning solution containing the polyamide acid; the mixed solvent used for the property regulation of the spinning solution is selected from at least two of N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, dimethyl sulfoxide, 1,4-dioxane, methanol, ethanol, toluene, chloroform, tetrahydrofuran, n-hexane, n-heptane and n-decane. The film prepared by the method has a breaking strength of 30 MPa and an elongation at break of 60%, various diamine and dianhydride monomers and solvent systems can be prepared by the method, and the mechanical properties are improved, the preparation process has a wide application range, and the polyimide film prepared by the method can be used for oil-water separation and has the ability of cyclic use and hot oil separation.

This invention relates to a method for preparing AEI-based IZM-10 zeolite, the method comprising at least mixing the following substances in an aqueous medium: FAU-based zeolite, whose SiO2... 2(FAU) / Al2O 3(FAU) The precursor gel obtained at the end of step i) is then subjected to hydrothermal treatment, comprising a molar ratio of 10 to 60 (inclusive of endpoints) and less than 0.005% by mass of sodium in cationic form, a nitrogen-containing organic compound R, wherein R is (6R,10S)-6,10-dimethyl-5-aza-onium spiro[4.5]decane in hydroxide form, and optionally sodium hydroxide. The invention also relates to AEI-based zeolites having a SiO2 / Al2O3 molar ratio of 10 to 60 (inclusive of endpoints) and a purity greater than or equal to 98% by weight, preferably greater than or equal to 99% by weight, wherein the zeolite is in a partially or fully protonated form and is obtained by the method described.

The invention belongs to the technical field of hydrometallurgy, and particularly relates to a non-silicon defoaming agent, the structure of which is shown as a general formula (I), in the general formula (I), R1 and R2 are respectively and independently selected from one of H, 2, 4, 7, 9-tetramethyl-5-decane-4, 7-diol and 2, 5, 8, 11-tetramethyl-6-dodecane-5, 8-diol, and R1 and R2 are not H at the same time. The non-silicon defoaming agent does not contain a silicon element, so that the negative influence of free silicon on the metal extraction agent and the metal recovery rate is effectively avoided; and when the leaching agent is applied to the leaching process of copper oxide concentrate, the leaching rate of copper reaches up to 90.78%.

To provide a resin powder composition, a three-dimensional molded body, and a method for producing a three-dimensional molded body, which are suitable for producing a three-dimensional molded body excellent in impact strength and tensile modulus of elasticity. 【Solution means】(a-1) MFR (230 ° C, 2.16 kg load) is 0.1 g / 10 min to 20 g / 10 min, (a-2) the amount of the 23 ° C n-decane soluble part (D sol ) is 6% by mass to 15% by mass with respect to the total mass of the 23 ° C n-decane soluble part amount (D sol ) and the 23 ° C n-decane insoluble part amount (D insol ), and (a-3) the powder aggregation stress at 160 ° C is 0 N to 2.5 N A resin powder (A) containing a propylene-based polymer powder that satisfies the above conditions, (b-1) MFR (230 ° C, 2.16 kg load) is 25 g / 10 min to 150 g / 10 min, (b-2) the amount of the 23 ° C n-decane soluble part (D sol ) is 6% by mass to 15% by mass with respect to the total mass of the 23 ° C n-decane soluble part amount (D sol ) and the 23 ° C n-decane insoluble part amount (D insol ), and (b-3) the powder aggregation stress at 160 ° C is 0 N to 2.5 N. A resin powder composition comprising a resin powder (B) containing a propylene-based polymer powder that satisfies the above conditions, wherein the mass ratio of the resin powder (B) to the resin powder (A) is 30 / 70 to 70 / 30.