90 results about "Undecane" patented technology

A method for producing jet-range hydrocarbons includes passing a stream comprising renewable C4 olefins to an oligomerization reactor containing a zeolite catalyst to produce an oligomerized effluent, separating the oligomerized effluent to produce a jet range hydrocarbon stream and a recycle stream comprising C8 olefins, and passing at least a portion of the recycle stream to the oligomerization reactor. A first at least about 10% of the jet-range hydrocarbon stream hydrocarbons boil between n-octane and n-undecane and wherein a second at least about 10% of the jet-range hydrocarbon stream hydrocarbons boil between n-dodecane and n-pentadecane.

The invention discloses semi-aromatic copolyamide resin. The semi-aromatic copolyamide resin comprises a repetitive unit derived from the following components: (A) diamine, including 30mol%-100mol% of 1,11-undecane diamine and 0-70mol% of other C4-C36 diamine based on the amount of diamine; and (B) diacid, including 30mol%-100mol% of terephthalic acid and 0-70mol% of other C6-C36 diacid based on the amount of diacid, wherein the semi-aromatic copolyamide resin contains three or more monomers, and the monomers do not contain lactam or amino acid monomers. According to the semi-aromatic copolyamide resin, C11 diamine is taken as a copolymerization component, and the proportion of diamine to diacid is controlled to met specific requirements, so that the semi-aromatic copolyamide resin with improved color performance, low water absorption rate and good dimensional stability, and a copolyamide molded composition consisting of the semi-aromatic copolyamide resin also has improved color performance, low water absorption rate and good dimensional stability.

The invention discloses a method for synchronously fermenting n-undecane (nC11) to highly yield eleven-carbon dicarboxylic acid (DC11) by utilizing a microorganism. The microorganism is Candida tropicalis ly-1, of which the preservation number is CCTCC (China Center for Type Culture Collection) NO. M 209223. The method is characterized in that within 28 hours after strains of the microorganism are connected to a culture medium using normal alkane as the substrate, the pH (hydrogen ion concentration) is controlled below 6.8, cell growth is taken as the principal task, and a certain amount of dicarboxylic acid is also produced; within 28 hours to 60 hours, the pH is controlled below 7.3, acid production is taken as the principal task, and a certain number of cells are also increased; and after 60 hours, the pH is controlled below 8.0, and various dicarboxylic acids are produced quickly. When the method is used for fermenting nC11 to produce DC11, the stains of the microorganism and nC11are fermented for 150 hours in a fermentation tank with a volume of 210m3; and the output of DC11 can reach up to 156g / L, the conversion rate can reach 86.7 percent, and the purity of DC11 can reach 98.2 percent.

The present invention provides a system and method for diagnosing, screening or monitoring a disease by analyzing the breath of a test subject using a selected definitive sensor set in conjunction with a pattern recognition analyzer, wherein the pattern recognition analyzer receives output signals of the sensor set, compares them to disease-specific patterns derived from a database of response patterns of the sensor set to exhaled breath of subjects with known diseases, wherein each of the disease-specific patterns is characteristic of a particular disease, and selects a closest match between the output signals of the sensor set and the disease-specific pattern. The present invention further provides a method of diagnosing, screening or monitoring a disease based on the determination of levels of volatile organic compounds (VOCs) from a universal biomarker set, including 2-ethylhexanol, 3-methylhexane, 5-ethyl-3-methyl-octane, acetone, ethanol, ethyl acetate, ethylbenzene, isononane, isoprene, nonanal, styrene, toluene and undecane.

The invention discloses a preparation method of Roxadustat, compound 1 and bis(dimethylamino)methane are heated in a mixed solvent of acetic acid and trifluoroacetic acid for reaction to form compound2; acetic anhydride is added to the obtained reaction solution of the compound 2 for completing reaction by heating to form compound 3; the compound 3 is dissolved in ethyl acetate and heated, then is catalyzed by Pd / C, and reduced by hydrogen to obtain compound 4; the compound 4 and glycine are dissolved in a solvent, and heated under the action of an organic base for reaction to obtain compound5; wherein the solvent is one or more of dioxane, ethylene glycol monomethyl ether, toluene, acetonitrile and n-propanol, the organic base is one or more of triethylamine, 1,8-diazabicyclo undecane-7-ene, N,N-diisopropylethylamine, N-methylmorpholine, pyridine, and ethylenediamine; the preparation method has the advantages of shorter reaction time, low reaction temperature, low equipment condition requirements and high crude product purity, is suitable for large-scale industrial production, and has a good industrialization prospect.

The invention provides a visual array chip for gas analysis and application thereof. According to the visual array chip, functional modules from No.1 to No.36 are arranged on a substrate according to an array distribution mode, and the functional modules are prepared by coating the substrate with porphyrin and dye modified by gold nano-particles, porous organic silicate, plasticizer and materials having specific response to aldehyde volatile organic compounds. The visual array chip can be used for detecting and analyzing at least one volatile gas in benzene, methylbenzene, p-xylene, trimethylbenzene, trichlorofluoromethane, propyl aldehyde, hexanal, acetaldehyde, heptanal, acetone, 2-pentanone, tetrahydrofuran, heptane, decane, undecane, 1-hexene, isoprene, styrene, acetic acid, propionic acid, ethylenediamine, tetramethylethylenediamine, acetonitrile, propyl alcohol, thiol and butyl acetate compounds. The chip can be used for detecting multiple gas ingredients, has high sensitivity for detected objects with low detection limit, and can reach the ppbv detection level.

The invention discloses a nitro ferrous phthalocyanine / graphene composite material and a preparation method thereof, belonging to the technical field of methanol fuel cell cathode catalyst application. The nitro ferrous phthalocyanine / graphene composite material consists of nitro ferrous phthalocyanine and graphene according to a mass ratio of 1 to (0.5-2); the nitro ferrous phthalocyanine forms a nano sphere structure on the surface of a graphene sheet. In the preparation method, with 1-pentanol as a reaction solvent and 1,8-diazabicyclo undecane-7-ene as a catalyst, nitro ferrous phthalocyanine is prepared from ferrous chloride tetrahydrate by a one-step process; the nitro ferrous phthalocyanine / graphene composite material with different mass ratios is prepared by carrying out hydrothermal reaction and adjusting the ratio of graphene to nitro ferrous phthalocyanine. The nitro ferrous phthalocyanine / graphene composite material disclosed by the invention has excellent catalytic activity and catalytic stability to oxygen as well as good methanol resistance. The synthesis method provided by the invention is simple and easy to implement and simple to operate.

The present invention relates to compounds having dual pharmacological activity towards both the sigma (σ) receptor, and the μ-opiod receptor and more particularly to diazaspiro undecane compounds having this pharmacological activity, to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use in therapy, in particular for the treatment of pain.whereinY isn is 1 or 2;q is 1, 2, 3, 4, 5 or 6;X is a bond, —C(O)O—, —C(O)NR8—, —C(O)—, —O— or —C(R4R4′)—;R1 is C(O)R5 or S(O)2R5.

The invention discloses a high flame-retardant epoxy resin adhesive. The high flame-retardant epoxy resin adhesive comprises the following raw materials in parts by weight: 60 to 72 parts of epoxy resin, 6 to 11 parts of polyurethane, 3 to 8 parts of epoxidized soybean oil, 5 to 11 parts of nonyl phenol, 2 to 8 parts of polysulfide rubber, 15 to 24 parts of a phosphorus-containing curing agent, 2to 9 parts of tung oil anhydride, 0.8 to 2 parts of a silane coupling agent, 0.3 to 1.5 parts of tetrabutyl titanate, 7 to 15 parts of a compound filler, 2 to 3 parts of 2-methyl fluoride ethyl acrylate, 0.5 to 2 parts of dodecyl phosphate, 0.3 to 1.2 parts of triglycidyl isocyanurate, 1 to 5 parts of phosphenylic acid, 0.8 to 3 parts of 1-ethyl-3-methylimidazole diethyl phosphate, 2 to 3.4 partsof 1,8-diazabicyclo undecane-7-ene and 2 to 9 parts of butyl glycidyl ether. The high flame-retardant epoxy resin adhesive provided by the invention is high in tenacity and excellent in flame-retardant performance and heat resistance.

The invention relates to a process for preparing spiro compounds, more particularly, relates to a synthetic process for 3, 9-diazaspiro [5. 5] undecane template compounds. The invention is mainly to solve the technical problems that the existing synthetic method for 3, 9-diazaspiro [5. 5] undecane spiro compounds has low yield and harsh reaction conditions. The process comprises using N-benzyl piperidine-4-ketone and ethyl cyanoacetate as starting material, generating dicyanocarbodiimide B in colamine solution, hydrolyzing selective decarboxylation in acid environment to obtain carbodiimide C, reducing the carbodiimide C by Lithium aluminum hydride to obtain diamine D, combining the different protecting groups to obtain the target template compounds. The invention provides a highly effective synthetic process with mild conditions and large scale preparing value for 3, 9-diazaspiro [5. 5] undecane template compounds.

The invention discloses a decorative film material. The decorative film material is characterized by comprising a weather-proof protecting layer, a printing layer and a base material layer from top tobottom in sequence, wherein the printing layer is formed by printing a grease paint drawing on the base material layer by a printer; the weather-proof protecting layer and the printing layer are in layered lamination through an adhesive; the weather-proof protecting layer is prepared from a fluorosilicone carbonate contained sulfone copolymer doped with 3,3,7,7,10,10-hexaphenyl-2,4,6,8,9,11-hexaoxa-1,5-diarsa-3,7,10-trisilabicyclo[3.3.3]undecane. The invention further discloses a preparation method of the decorative film material. The decorative film material has a remarkable decorative effect, is resistant to scratching, heat and aging, has good compressive property, excellent comprehensive performance, performance stability, weather fastness, mechanical properties and flame retardance,high flatness, fine and smooth hand-feeling, higher adsorption capacity for printing ink and higher image-text definition and fastness and is safer and more environmentally friendly to use.

The invention discloses a gabapentin synthesis method which comprises the following steps: enabling addition cyclization reaction on cyclohexanone and ethyl cyanoacetate in an anhydrous isopropanol solution of liquid ammonia; enabling hydrolysis reaction on 2,4-dioxo-3-aza-spiro[5,5]undecane-1,5-dinitrile ammonium salt in high temperature liquid water by using H2SO4 as a catalyst; enabling dehydration reaction in a dichloroethane solvent by adding phosphorus pentoxide into 1,1-cyclohexyl diacetic acid; enabling ammonolysis reaction on 1,1-cyclohexyl diacetic anhydride in ammonia water; conducting Hofmann degradation reaction on 1,1-cyclohexyl diacetic acetamide. Cyclohexanone which is cheap and easy to obtain is used as a raw material to obtain gabapentin through addition cyclization reaction, hydrolysis, dehydration, ammonolysis and Hofmann degradation reaction, the reaction route is simple, and the yield of each step of reaction is relatively high, so that the final total yield and purity of gabapentin are ensured.

A resist composition comprising a base polymer and a salt is provided. The salt consisting of an anion derived from a carboxylic acid having an iodized or brominated hydrocarbyl group and a cation derived from a 2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane, biguanide or phosphazene compound. The resist composition exerts a high sensitizing effect and an acid diffusion suppressing effect, causes no film thickness loss after development, and is improved in resolution, LWR and CDU when a pattern is formed therefrom by lithography.

A resist composition comprising a base polymer and a 2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane salt compound offers a high dissolution contrast, minimal LWR, and dimensional stability on PPD.

The invention relates to a synthetic method of 3-oxymethylene-7-oxa-2,10-diazaspiro[4,6] undecane-10-tert-butyl formate and primarily solves the technical problem that no proper industrial synthetic methods are available in the prior art. The method comprises the following three steps: S1, first dissolving a compound 1 in tetrahydrofuran and adding sodium hydride and triethyl phosphonoacetate to carry out a Wittig reaction to obtain a compound 2; S2, dissolving the compound 2, nitromethane and Tetrabutyl ammonium fluoride in tetrahydrofuran and heating the solution to react to generate a compound 3; and S3, dissolving the compound 3 ethanol and carrying out reduction and ring closing by raney nickel to obtain a compound 4; the reaction formula as shown in the description.

The invention provides a combustion improver for a boiler. The combustion improver is prepared from the following raw materials in parts by weight: 4 parts of sulfuric acid, 4 parts of hydrochloric acid, 4 parts of iron oxide, 4 parts of zinc oxide, 4 parts of copper oxide, 4 parts of calcium oxide, 4 parts of magnesium oxide, 4 parts of aluminum oxide, 16 parts of selenium dioxide, 16 parts of strontium oxide, 16 parts of difluorine monoxide, 16 parts of No. 97 gasoline, 16 parts of No. -20 diesel oil, 16 parts of ethanol, 16 parts of kerosene, 10 parts of paraffin, 10 parts of n-octane, 10 parts of nonane, 10 parts of decane, 10 parts of undecane, 10 parts of dodecane, 10 parts of eicosane, 10 parts of triacontane and 10 parts of tetracontane. The combustion improver provided by the invention can reduce pollution, improve combustion efficiency and prolong the service life of the boiler. The invention further provides a preparation method and application of the combustion improver.

A resist composition comprising a 2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane, biguanide or phosphazene salt of tetraiodophenolphthalein, tetraiodophenolsulfonphthalein or tetraiodofluorescein exhibits a sensitizing effect and an acid diffusion suppressing effect and forms a pattern having improved resolution, LWR and CDU.

The invention discloses a high-flash-point hydrocarbon cleaning agent for removing dirt in slits, and a preparation method thereof. The cleaning agent comprises the following raw materials by volume:10 to 90% of undecane and 10 to 90% of diethylene glycol tert-butyl ether. Undecane has very low surface tension and extremely strong penetration capability and can enter small slits; diethylene glycol tert-butyl ether dissolves both water-soluble and oil-soluble dirt; and undecane carries diethylene glycol tert-butyl ether to enter gaps between metal and plastic, and then diethylene glycol tert-butyl ether dissolves and wraps dirt and then carries the dirt out together. The high-flash-point hydrocarbon cleaning agent of the invention can dissolve inorganic substances and organic substances atthe same time and completely remove dirt in slits; and the preparation method is simple in process and easy for mass production.

Provided is a laminate in which a fluororubber and an epichlorohydrin rubber are strongly vulcanization-bonded to each other. A rubber laminate in which an epichlorohydrin rubber layer and a fluororubber layer are vulcanization-bonded to each other, wherein the epichlorohydrin rubber layer comprises at least (a) magnesium oxide, (b) a polythiol-type vulcanizing agent, (c) at least one compound selected from 1,8-diazabicyclo(5,4,0)undecane-7, 1,5-diazabicyclo(4,3,0)nonene-5 and salts thereof, (d) at least one compound selected from an organic phosphonium salt and an organic ammonium salt and (e) maleic anhydride-modified polybutadiene, said rubber laminate being characterized in that the contents of the polythiol-type vulcanizing agent (b) and the maleic anhydride-modified polybutadiene (e) are 0.3 to 1.2 parts by weight and 0.3 to 1.5 parts by weight, respectively, relative to 100 parts by weight of the epichlorohydrin rubber.

The invention discloses an attractant composition for agrotis ypsilon larvae and an application of the attractant composition. The attractant composition comprises the following components in parts by weight: 0.1 to 0.8 part of 2-ethylhexanol, 2 to 8 parts of (2E,6E,11Z)-3,7,13-trimethyl-10-(2-propyl)-2,6,11-cyclotetradecatriene-1,13-diol, 0.08 to 0.3 part of undecane, 1 to 3 parts of styrene, 0.8 to 2.5 parts of dibutyl phthalate and 0.1 to 0.8 part of hexadecane. The synergist provided by the invention is low in component price, can reduce the cost of making a lure, and is suitable for popularization and promotion.

The invention relates to a process for preparing spiro compounds, more particularly, relates to a synthetic process for 3, 9-diaza-2-oxo-spiro [5. 5] undecane template compounds. The invention is mainly to solve the technical problems that the existing synthetic method for 3, 9-diaza-2-oxo-spiro [5. 5] undecane has low yield and harsh reaction conditions and is not suitable for large scale product. The process comprises using N-benzyl piperidine-4-ketone A and ethyl cyanoacetate as starting material, generating dicyanocarbodiimide B in colamine solution, hydrolyzing selective decarboxylation in acid environment to obtain carbodiimide C, selectively reducing the carbodiimide C to obtain diamine D, combining the different protecting groups to obtain the target template compounds after hydrogenating and debenzyl. The invention provides a synthetic process with a short reaction line, low cost and large scale preparing value for 3, 9-diaza-2-oxo-spiro [5. 5] undecane template compounds.

The present invention relates to an efficient antirust type environmentally-friendly hydrocarbon cleaning agent and a preparation method thereof, wherein the efficient antirust type environmentally-friendly hydrocarbon cleaning agent comprises 1-5% of undecane, 90-95% of decane, 0.4-0.8% of di-n-octylamine, and 0.1-0.5% of RP333H. According to the present invention, the efficient antirust type environmentally-friendly hydrocarbon cleaning agent is mainly used for the cleaning and short-term antirust of oil stains on the surface of carbon steel, cast iron and other work-pieces, wherein the antirust cycle is up to 30 days, the cleaning and the antirust are integrated, the problem that the cleaning agent and the antirust agent in the same industry can be only subjected to single use is solved, the two requirements are met with the one product, the industrial production efficiency is substantially improved, the complex process comprising the separate cleaning and antirust is saved, and thecomprehensive production cost of the enterprise is reduced; and the efficient antirust type environmentally-friendly hydrocarbon cleaning agent has advantages of rapid cleaning, environmental protection, safety and excellent antirust property, and does not corrode metals, plastics, rubbers and other materials.

The invention discloses a synthesis method for an aryl azide compound. The synthesis method includes the steps of: adding an iodo-aryl compound, sodium azide, 1,8-diazabicyclo[5.4.0]undecane-7-ene and a catalyst into a reaction container filled with a solvent, performing a stirring reaction to the reaction mixture at 60-105 DEG C with TLC tracing detection until the reaction is completed, adding ammonia water to the reaction mixture, extracting the reaction mixture for 3 times by ethyl acetate, washing the reaction mixture for 1 time by saturated salt water, drying an organic phase, performing suction filtration and spinning solvent removal, and performing column chromatographic purification to obtain a target product. The method employs easy-to-obtained raw materials and has wide selection range of copper source of the catalyst, has mild reaction condition, simple operation and high yield.

A novel minimum boiling binary azeotrope of n-undecane and n-butyl-3-hydroxybutyrate is shown to have utility as a solvent for degreasing of both nonpolar and polar contaminants. The components of the azeotrope are stable against degradation and the composition is largely invariant with pressure, yielding a unique solvent that can be used in cold cleaning and in vapor degreasing at elevated temperatures and over a wide range of pressures.

A method of making an electrode for an organic electronic device comprises the steps of depositing an ink on a light emitting layer, and drying said ink to form said electrode. The ink comprises conductive metal or carbon particles, a binder and a hydrocarbon solvent selected from 1, 1′-bicyclohexyl, cis-decalin trans-decaiin or n-undecane.

The invention discloses a preparation method of 2,6,10-trimethyl-2,5,9-undecane triene-1-aldehyde and relates to the technical field of synthesis of a lycopene intermediate. The preparation method is characterized by comprising the following steps of using 4,8-dimethyl-3,7-violetleaf-1-aldehyde and propionaldehyde to serve as raw materials, and conducting a one-step condensation reaction to generate the key lycopene intermediate 2,6,10-trimethyl-2,5,9-undecane triene-1-aldehyde. The preparation method is simple and rapid in process route, prone to obtain the raw materials and low in cost and has industrial value. In particular, a catalytic agent can be simply layered to recover and use indiscriminately after the reaction is finished.

Drugs comprising a combination of triazaspiro[5,5]undecane derivatives represented by the following general formula I: I wherein each symbol is as will be defined hereinafter quaternary ammonium salts thereof, N-oxides of the same or nontoxic salts of the same with at least one cytochrome P450 isozyme 3A4 inhibitor and / or at least one P-glycoprotein inhibitor. The drugs comprising such a combination, wherein the bioavailability of the compounds represented by the general formula I is elevated, are efficaciously usable as oral preparations in treating various diseases.

The invention discloses a method for rapidly synthesizing 3,9-di(4-carboxylphenyl)-2,4,8,10-tetraoxaspiro[5.5]undecane. The intermediate 3,9-di(4-carboxylphenyl)-2,4,8,10-tetraoxaspiro[5.5]undecane is synthesized through a solvent-free technology, so the problems of high boiling point and difficult removal of a solvent N,N-dimethyl formamide are solved; a catalyst adopts a routine protonic acid, such as p-toluenesulfonic acid and hydrochloric acid, so the catalyst has low price and solves the problem of high price of a ZrCl4 catalyst; a non-acidic reactant methyl p-formylbenzoate is adopted to substitute 4-formylbenzoic acid, so a reaction is instantly finished, and the problem of long reaction time is solved; and synthesis in the invention is carried out in a two-step manner, the yield of the first step is greater than 80%, the alkaline hydrolysis and acid precipitation yield of the second step is greater than 95%, and the comprehensive yield is greater than 76%, so the yield is near 21% higher than those in literature methods, and the problem of low yield is solved.