69 results about "Decene" patented technology

Processes for making aviation fuels include a step of forming a C16− olefin stream by oligomerizing a mixture of decenes with a C6− alpha-olefin or by subjecting the mixture of decenes and a C8− alpha-olefin to metathesis. The C16− olefin stream is then hydrogenated to form C16− paraffins, and these C16− paraffins can be used to form an aviation fuel. Particular C11-C16 olefin compositions and paraffin compositions prepared by these processes also are described.

The application discloses a high-efficiency paint-removing liquid, a preparation method thereof and a wet wipe, wherein the high-efficiency paint-removing liquid comprises, in terms of mass fractions, an alcohol ether solvent, N,N-dimethyl-9-decenamide, an emulsifier, a penetrating agent, a humectant, limonene and a preservative; the alcohol ether solvent is used to improve the polarity of the whole system, can soften and swell the paint film well, and reduce the adhesion of the paint film to a base material; the N,N-dimethyl-9-decenamide is used as a main surface-active paint remover, and the penetrating property of the N,N-dimethyl-9-decenamide can make the paint molecular chain break, so that the paint molecular structure is decomposed; the alcohol ether solvent and the N,N-dimethyl-9-decenamide can cooperate to make the paint layer easy to peel off; the penetrating agent is further used to enhance the emulsification and dispersion of the paint, help the softened and decomposed paint particles stably disperse in the solution, prevent the paint particles from being redeposited, and facilitate subsequent cleaning and removal; and the limonene is used as a complexing agent and cooperates with other components to realize the high-efficiency and thorough paint-removing effect.

The invention discloses a method for removing the fishy smell of chicken gizzards through multi-bacterium combined fermentation, and belongs to the technical field of poultry byproduct processing. According to the method disclosed by the invention, the chicken gizzards are subjected to fishy smell removal treatment by compounding the saccharomycetes Y4-1 and the bacillus SB. After fishy smell removal treatment, the content of key fishy smell substances including 1-octylene-3-alcohol, octanol, hexanal, nonanal and heptanal is greatly reduced, the total content is reduced from 25.15 mu g / g to 6.02 mu g / g and is reduced by 76.06%, heptanol, geranyl acetone, methyl heptanoate, methyl caprylate, glycerol monooleate, trans-2-decenal, 2-undecenal and other substances are completely removed, and the content of the key fishy smell substances is reduced by 76.06%. Meanwhile, elegant aroma components such as benzaldehyde and phenylacetaldehyde are generated. In conclusion, the saccharomycetes Y4-1 and the bacillus SB are compounded to remove fishy smell, so that the fishy smell substances of the chicken gizzards can be effectively removed, the flavor of the chicken gizzards can be further improved, and the edible value of the chicken gizzards is improved.

The application discloses a use method and application of a vegetable bud inhibition agent, and belongs to the technical field of plant body or local preservation and plant growth regulator. The application uses furan sulfide compounds as a bud inhibition agent to perform fumigation treatment on rhizome vegetables, so that the bud inhibition effect of the rhizome vegetables can be effectively delayed. The product has good bud inhibition effect, and the bud inhibition effect is comparable to that of 3-decene-2-butanone and menthol essential oil which are commercially used. The method has low bud inhibition cost, and can be used as a green alternative technology of traditional fumigation agents such as chloranil. The furan sulfide compounds as active ingredients are commonly used as food essence and spices, belong to food additives, and are widely applied in the food industry, are safe to use, simple to operate and low in cost.

The present application relates to the technical field of chemical essence and flavor, and particularly relates to a decenoic acid ester compound, a preparation method and application thereof, and comprises the following steps: (1) preparing 2-(4-methyl-benzylidene) heptanal: under the condition of an inorganic alkaline reagent, p-methylbenzaldehyde and n-heptanal are subjected to aldol condensation reaction to synthesize 2-(4-methyl-benzylidene) heptanal; (2) preparing 2-(4-methyl-benzylidene) heptyl alcohol: under the condition of a reducing agent, 2-(4-methyl-benzylidene) heptanal is reduced to 2-(4-methyl-benzylidene) heptyl alcohol; (3) preparing 5-decenoic acid 2-(4-methyl-benzylidene) heptyl alcohol ester: under the catalysis of an acid, 5-decenoic acid and 2-(4-methyl-benzylidene) heptyl alcohol are subjected to esterification to synthesize 5-decenoic acid 2-(4-methyl-benzylidene) heptyl alcohol ester. The compound in the present application has jasmine aroma and milk aroma, has elegant aroma, has long-lasting aroma, and has important use in the field of daily chemical flavoring.

The invention relates to a method for catalytically synthesizing 2, 4-disubstituted phthalazine 1-(2H)-ketone from 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene. According to the method, 3-alkenyl phthalide and hydrazine compounds are taken as initial raw materials, TBD which is low in price and easy to obtain is taken as a catalyst, sodium tert-butoxide is taken as alkali, reaction is carried out at room temperature, and the 2, 4-disubstituted phthalazine 1-(2H)-ketone is obtained at high yield. According to the method, the cheap TBD is adopted as the catalyst, the reaction is carried out under the room temperature condition, and compared with a traditional reaction strategy, the economic cost is greatly reduced, the steps are simple, heating and a transition metal catalyst are not needed, operation is convenient, the yield is high, the cost is low, and good economic benefits are achieved.

Processes for making aviation fuels include a step of forming a C16- olefin stream by oligomerizing a mixture of decenes with a C6- alpha-olefin or by subjecting the mixture of decenes and a C8- alpha-olefin to metathesis. The C16- olefin stream is then hydrogenated to form C16- paraffins, and these C16- paraffins can be used to form an aviation fuel. Particular C11-C16 olefin compositions and paraffin compositions prepared by these processes also are described.

The present invention provides a (6Z)-6-tridecenyl metal compound (1) wherein M1 represents Li or MgZ1, and Z1 represents a halogen atom or a (6Z)-6-tridecenyl group; also provided is a method for preparing a compound (1) comprising the steps of: preparing a (3Z)-3-decenyl metal compound (3) from a 1-halo-(3Z)-3-decenyl compound (2), where X1 represents a halogen atom, where M2 represents Li or MgZ2, and Z2 represents a halogen atom or a (3Z)-3-decenyl group; a coupling reaction of the compound (3) with a 1, 3-dihalopropane compound (4), where X2 and X3 independently of each other represent a halogen atom, to form a 1-halo-(6Z)-6-tridecene compound (5), where X4 represents a halogen atom; and preparing a (6Z)-6-tridecenyl metal compound (1) from the compound (5).

The application discloses a sorghum aphid repellent, wherein the efficacy component is trans-2-decenal, and the trans-2-decenal can be configured into a liquid paraffin solution of trans-2-decenal for use, preferably a liquid paraffin solution of 0.1 mu g / mu L-0.5 mu g / mu L trans-2-decenal. The sorghum aphid repellent is prepared from existing chemical products, the components are stable, the preparation method is simple, the repellent effect on the sorghum aphid is obvious, and the sorghum aphid repellent is expected to be used in the prevention and control of the sorghum aphid. The repellent can be used for preventing the harm of the sorghum aphid, the compound in the application is an industrial raw material, the preparation method is simple, the price is low, the compound is safe for human and livestock, and the environment is not polluted, so the application has a wide application prospect.

The invention discloses a high-efficiency catalyst composition for preparing optical-grade PC (polycarbonate), the catalyst composition comprises a non-metal catalyst and a rare earth oxide, and the mass ratio of the non-metal catalyst to the rare earth oxide is 1: (0.1-1); the non-metal catalyst is prepared from at least one of N-heterocyclic carbene borate, 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene, N, N '-di-tert-butyltetramethylguanidine or 1, 3-di (2, 6-diisopropyl phenyl) imidazole-2-subunit, and the non-metal catalyst is prepared from at least one of N-heterocyclic carbene borate, 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene, N, N'-di-tert-butyltetramethylguanidine and 1, 3-di (2, 6 In the efficient catalyst for preparing the optical grade PC, the nonmetal catalyst has a high steric hindrance effect and can inhibit Fries side reaction, meanwhile, the rare earth oxide is introduced to serve as a cocatalyst, carbonyl is activated through Lewis acid, and the catalytic activity and catalytic efficiency are greatly improved.

The invention discloses a method for synthesizing jasmine lactone through photocatalytic reaction, and belongs to the field of fine chemicals. The synthesis method comprises the following steps: taking (E)-1, 6-octadiene-3-ketone-2 and iodoacetic acid as raw materials, carrying out photocatalytic reaction to obtain (E)-5-oxo-8-decenoic acid, then reacting with sodium borohydride to obtain (E)-5-hydroxy-8-decenoic acid, and carrying out esterification reaction on a crude product under the catalysis of acid without separation to obtain jasmonlactone. The method for obtaining the jasmine lactone has the advantages of easiness in synthesis of raw materials, mild reaction conditions, low cost and few steps, shows the superiority and simplicity of the synthesis method, and provides a simple way for preparation of the compounds.

The application discloses a method for synthesizing N-(hetero) aryl sulfonamide compounds. The method uses bipyridine as a ligand, nickel acetate or nickel chloride as a catalyst, low-cost low-activity (hetero) aryl chloride and different types of sulfonamides as substrates, 1,8-diazabicycloundec-7-ene, tetramethyl guanidine, 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene and the like as organic bases, and tetra-n-butylammonium iodide as an additive. The C-N coupling reaction of (hetero) aryl chloride and sulfonamide is realized by light-induced nickel catalysis in an argon atmosphere, so as to realize the synthesis of various (hetero) aryl sulfonamide compounds. The reaction system is simple, the operation is simple, the reaction condition is mild, the post-treatment is simple, the yield is good, the substrate range is wide, the use of traditional expensive metal catalysts and inorganic bases is avoided, the problems of complex catalytic system reaction and poor functional group compatibility are solved, and the method is a simple and efficient method for synthesizing (hetero) aryl sulfonamide compounds. The method has good application prospect.

The invention discloses an acrylic acid type rust conversion agent and a preparation method thereof, and belongs to the technical field of metal surface treatment. The acrylic acid type rust conversion agent is prepared from the following raw materials: 50 to 60 parts of pure acrylic emulsion, 4 to 6 parts of cross-linking agent, 10 to 12 parts of rust conversion agent, 0.8 to 1.2 parts of defoaming agent, 1 to 1.2 parts of flatting agent, 2 to 3 parts of coalescing agent, 8 to 10 parts of nano silicon dioxide, 20 to 25 parts of deionized water and 0.1 to 0.3 part of N, N-dibenzylaniline. The preparation method of the cross-linking agent comprises the following steps: reacting amino-terminated silicon oil with perfluorobromooctane to obtain an intermediate 1, reacting with 10-bromo-1-decene to obtain an intermediate 2, and finally preparing the cross-linking agent under the action of formic acid and hydrogen peroxide. The prepared acrylic acid type rust conversion agent has good adhesive force and salt spray resistance.

This invention relates to the field of micro / nano manufacturing technology, and in particular to a high-refractive-index fluidized nanoparticle, a hybrid photoresist, a patterned coating, and methods for preparing the respective. The high-refractive-index fluidized nanoparticle comprises a core, the core being modified with a first ligand and a second ligand; the first ligand is one or more selected from methacrylic acid, 4-pentenoic acid, methacryloxypropyltrimethoxysilane, and sodium methacrylate sulfonate; the second ligand is one or more selected from piperidine, N,N-diisopropylethylamine, 1,5,7-triazabicyclo[4.4.0]decene-5-ene, tetramethylguanidine, triethylamine, and tetrahydropyrrole. This invention, through the design of ultra-small metal oxide nanoparticles and innovative organic ligands, successfully solves the technical contradiction of traditional photoresist materials in achieving high resolution, high refractive index, and low curing shrinkage.

The present invention provides a repellent composition for mites which is excellent in mite-repelling effect against indoor mites even after a long period of time and is also excellent in safety to humans and animals. The present invention relates to a repellent composition for mites, which contains: (a) 1,8-cineol and / or 1,4-cineol and (b) a perfume ingredient, wherein the perfume ingredient contains one or two or more kinds of perfume compounds having a logP value of 2.0 to 5.5. The mixing ratio (a) / (b) of the (a) ingredient to the perfume compounds contained in the (b) ingredient is set to 5 to 100 on a mass basis. The perfume compounds contained in the (b) ingredient are at least one selected from the group consisting of ethyl cinnamate, allyl caproate, 3-methyl-5-phenyl-1-pentanol, citronellol, δ-dodecalactone, β-ionone, benzyl benzoate, linalyl acetate, geranyl acetate, tricyclo decenyl propionate, benzyl salicylate, limonene, and amyl salicylate.

The present application relates to a kind of containing fatty acyl-coa dehydrogenase engineering bacteria and its application method, belong to microbial fermentation technical field.The engineering bacteria containing fatty acyl-coa dehydrogenase gene in the present application include fatty acyl-coa dehydrogenase gene and fatty acyl-coa thioesterase gene, the fatty acyl-coa dehydrogenase gene is derived from Candida tropicalis or Yarrowia lipolytica, its nucleotide sequence is SEQ ID NO.1 or SEQ ID NO.2;The nucleotide sequence of the fatty acyl-coa thioesterase gene is SEQ ID NO.3.Fatty acyl-coa dehydrogenase from Candida tropicalis and Yarrowia lipolytica, combined with existing fatty acyl-coa thioesterase, jointly convert 10-hydroxy decanoic acid, significantly improve the conversion rate of 10-hydroxy-2-decenoic acid, so that the industrialization production of 10-hydroxy-2-decenoic acid becomes possible.

The present application relates to polypropylene material and its preparation method, disclose a kind of high molecular weight propylene-based elastomer toughened polypropylene blend composite material and its preparation method;Its preparation method is, using high molecular weight propylene-based elastomer toughened polypropylene, the high molecular weight propylene-based elastomer is by propylene monomer and its comonomer (1-butene, styrene, 1-hexene, 1-octene, 1-decene and the like one or several) preparation by quinoline amine-based binuclear metal hafnium catalyst and cocatalyst (three five fluorophenyl boron, triphenyl carbonium tetrakis (five fluorophenyl) borate, aluminoxane, alkyl aluminum, alkyl aluminum chloride and the like one or several);While meeting the improvement PP toughness, keep its excellent strength and rigidity, and continue to give its excellent low temperature toughness, specifically, after toughening modification, the toughness of polypropylene-based blend composite material at room temperature (25 DEG C) and low temperature (-25 DEG C) are obviously improved, simultaneously, its tensile strength changes little.Therefore, the present application has originality innovation, provides new direction for the development of polyolefin material field.

The present invention specifies an unpleasant odor, which is a semi-dry odor generated by a fibrous product such as clothing, towels, bedding, and the like, and provides a perfume composition, a common consumer product, and the like, which are capable of reducing the unpleasant odor. The perfume composition according to the present invention can exert a deodorizing (masking) effect on unpleasant odors, which are half-dry odors, by containing, as a masking active ingredient, one or more compounds selected from the group consisting of 3-(4-tert-butylphenyl) propionaldehyde, 3-tricyclo [5.2. 1.02, 6] deca-3-alkenyl acetate, 3-(4-ethylphenyl)-2, 2-dimethylpropionaldehyde, ethyl 2-cyclohexyl propionate, and the like.

The embodiment of the application discloses an epoxy resin composition, and relates to the technical field of packaging materials. The epoxy resin composition provided by the embodiment of the application comprises an epoxy resin matrix containing a dynamic covalent bond, a curing agent and TBD modified nanoparticles; wherein the TBD modified nanoparticles comprise a nanoparticle body and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) located on the surface of the nanoparticle body, and the TBD is reversibly fixed on the surface of the nanoparticle body; the mass ratio of the epoxy resin matrix, the curing agent and the TBD modified nanoparticles is (4-12):(2-8):(1-12) in terms of mass fraction. The epoxy resin composition provided by the embodiment of the application has a low thermal expansion coefficient, and meanwhile has high toughness and stress release capacity.

The invention relates to the field of macromolecules, in particular to hydrogenated dimer decene as well as a preparation method and application thereof. The invention provides hydrogenated decene with lower kinematic viscosity required in the field of cosmetics, a preparation method of the hydrogenated decene and application of the hydrogenated decene in preparation of cosmetics, a catalyst and a step process which are completely different from those in the prior art are adopted, the preparation method is more specific to quality control of dimers, generation of polymers is reduced, and the production cost is reduced. The yield of the dimer is increased, the effect of reducing the kinematic viscosity of the product is achieved, and industrial production is easier to realize.

The application discloses a recrystallization method of borate, and belongs to the technical field of purification. The recrystallization method of the borate adopts a mixed system of at least one of a recrystallization agent A of n-heptane, n-hexane and petroleum ether and at least one of a recrystallization agent B of isopropyl alcohol, dichloromethane and tetrahydrofuran as a recrystallization agent, so that a crystal of 4,4,5,5-tetramethyl-2-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)-1,3,2-dioxaborinane with high purity is prepared at a high yield, is resistant to storage and is convenient to use.

The present application relates to a kind of compound 2-[(full-E)3,7,11,15,19,23,27,31,35,39-decamethyl-2,6,10,14,18,22,26,30,34,38-tetracosaalkyl]-5,6-dimethoxy-3-methyl-p-benzoquinone crystal form and its preparation method and application, belong to chemical engineering crystallization field.The technical problem to be solved is to provide a crystal form with significantly improved stability, significantly improve the light stability of the compound, and further more conducive to storage and transportation, better ensure the consistency of therapeutic effect, reduce the effect fluctuation or adverse reaction caused by dissolution difference.Characteristic diffraction peak of X-ray powder diffraction pattern expressed by 2θ value ± 0.2° using Cu-Kα radiation includes 4.70, 6.25, 15.65, 17.22, 19.18, 20.45, 27.39.

The invention relates to the technical field of plastic particles, in particular to toughened high-barrier plastic particles. The plastic particles prepared by the invention overcome the problems of insufficient mechanical properties and poor vapor, oxygen and ultraviolet ray barrier properties of plastic particles in the prior art. The anti-aging agent, alkenyl-terminated polysiloxane modified polyvinyl alcohol and acrylic emulsion modified epoxy resin prepared by using perfluorooctyl ethyl acrylate as a functional monomer are used, nano silicon dioxide is modified by using dodecafluoro-9-decenetrimethoxysilane, and the flexibilizer and related auxiliaries are added, so that the anti-aging and anti-aging composite material is prepared. The toughened high-barrier plastic particles are prepared through melt extrusion; polysiloxane is used for modification, so that the tensile property of the plastic particles is improved; the flexibilizer is added, so that the impact strength of the plastic particles is improved; the modified nano inorganic matter is used for improving the oxygen barrier property of the particles; by introducing the fluorine-containing compound, the water vapor barrier property of the plastic particles is improved; by controlling the dosage of the anti-aging agent, the ultraviolet barrier property of the plastic is improved.

To provide a technique relating to treatment of nausea and / or vomiting.SOLUTION: Administering to a subject in need thereof a therapeutically effective amount of a C50 carotenoids compound. The C50 carotenoids compound is selected from the group consisting of decaprenoxanthin, C50 - astaxanthin, C50 - beta-carotene, C50 - carotene (n = 3) (1616 - diisopentenylphytoene), C50 - zeaxanthin, C50 - caroxanthin, C50 - nostoxanthin, sarsinaxanthin, sarprenoxanthin, acyclic C50 carotenoids bacterioruberin, C50 - canthaxanthin, - lycopene, - phytoene, and combinations thereof. C50 C50.SELECTED DRAWING: Figure 1A

The present invention relates to a process for the preparation of aromatic carboxyamides of formula I, which can be obtained by a palladium-catalyzed carbonylation reaction of aromatic chlorides of formula II, amines of formula III and carbon monoxide in the presence of 1,5,7-triazabi-cyclo[4.4.0]dec-5-ene. The invention further relates to a process for the preparation of aryl-5-trifluoromethyl-1,2,4-oxadiazoles, which are known for controlling phytopathogenic fungi.

Process for making sustainable aviation fuel (SAF) from specific bio-ethylene oligomerization reactions producing a C4-C8 alpha-olefin and a by-product mixture of C10 olefins. This mixed decene stream is upgraded by further oligomerizing with at least one C4-C6 alpha-olefin to provide a C16− olefin stream, which is hydrogenated to C16− paraffins which is used to form a SAF. Employing bio-ethylene to produce the mixed decene stream, which is relatively low-value due in part to its non-selectivity, leverages that non-selectivity into a desirable sustainable aviation fuel product where the low selectivity is preferable. These and other embodiments and aspects are described herein.

The application discloses an environment-friendly plant-based degradable high molecular material and a preparation method thereof, and relates to the technical field of high molecular materials. In the preparation of the environment-friendly plant-based degradable high molecular material, chitosan is sequentially reacted with 5-aldehyde furan-3-boronic pinacol ester and 1-bromo-1,2,2-triphenyl ethylene to obtain modified chitosan; hesperetin is reacted with 4-(chloromethyl)-1,3-dioxolane-2-ketone to obtain functionalized hesperetin; dimethyl adipate, a phosphorus-containing diacid ester monomer and 1,6-hexanediamine are subjected to polycondensation to obtain polyamide; the polyamide is reacted with formaldehyde to obtain modified polyamide; the modified polyamide, the modified chitosan, the functionalized hesperetin and 1,5,7-triazabicyclo[4.4.0]dec-5-ene are mixed and injection molded to obtain the environment-friendly plant-based degradable high molecular material. The environment-friendly plant-based degradable high molecular material prepared by the application has excellent anti-aging, flame-retardant and mechanical properties.

This invention belongs to the field of cosmetic technology, specifically relating to a composition containing 10-hydroxy-2-decenoic acid and its application. The composition is obtained by compounding probiotic-fermented brown algae, pterostilbene, and 10-hydroxy-2-decenoic acid in a certain proportion. Experiments have shown that the components of the above composition can produce a synergistic effect, significantly inhibiting the production of inflammatory factors, resisting inflammatory aging, and inhibiting lipid peroxidation. Furthermore, this invention unexpectedly discovered that compounding probiotic-fermented brown algae, 10-hydroxy-2-decenoic acid, and pterostilbene can significantly improve the light and heat stability of pterostilbene, thus possessing good practical application value.

The invention provides a method for catalyzing metathesis reaction of aluminum oleate based on a ruthenium-based catalyst, and belongs to the field of olefin metathesis and the technical field of olefin synthesis. The method for catalyzing the metathesis reaction of the aluminum oleate based on the ruthenium-based catalyst comprises the following steps: in the presence of an organic solvent, carrying out acid-base reaction on oleic acid and an aluminum alkyl reagent to obtain an aluminum oleate homogeneous solution; adding a ruthenium-based catalyst and a cocatalyst into the aluminum oleate homogeneous solution, and catalyzing the aluminum oleate and ethylene to generate a metathesis reaction in the presence of ethylene to obtain a metathesis product; wherein the metathesis product comprises a cross metathesis product of 9-decenoic acid aluminum salt and 1-decene, and the cross metathesis product is obtained by carrying out cross metathesis reaction on aluminum oleate and ethylene. The method disclosed by the invention has the effects of relatively mild reaction conditions, relatively high oleic acid conversion efficiency and relatively high product selectivity.

Processes for making aviation fuels include a step of forming a C16− olefin stream by oligomerizing a mixture of decenes with a C6− alpha-olefin or by subjecting the mixture of decenes and a C8− alpha-olefin to metathesis. The C16− olefin stream is then hydrogenated to form C16− paraffins, and these C16− paraffins can be used to form an aviation fuel. Particular C11-C16 olefin compositions and paraffin compositions prepared by these processes also are described.