49 results about "Octyl aldehyde" patented technology

The invention relates to an air purifying agent, which is characterized by comprising the following components in proportion by weight: 0.001-0.01% of zingiberone, 0.005-0.05% of zingiberol, 0.015-0.05 % of menthol, 0.01-0.03 % of menthone, 0.02-0.04%of phellandrene, 0.01-0.03% of pinene, 0.005-0.02% of terpineol, 0.02-0.05%of citral, 0.002-0.01% of octyl aldehyde, 0.002-0.01% of pelargonic aldehyde, 0.02-0.05% of geraniol, 0.01-0.03% of linalool and 0.005-0.02% of hydratropic aldehyde. The air purifying agent of the invention is prepared by compounding pure natural plant juice and belongs toa pure natural product which has no toxicity, irritation and explosiveness. Compared with the chemical deodorizer used for deodorization in the existing market, the air purifying agent has better safety, and products obtained by reaction of the air purifying agent and odor do not have secondary pollution.

The invention relates to a method for detecting oxidative deterioration of a cured meat product. The method adopts a headspace solid phase microextraction and GC-MS technique to analyze the kinds and change of smell substances of the cured meat product, and a detection result shows that after a rancid characteristic odor appears in the storage process, people find that one or more of six substances including 2,4-heptyl diene aldehyde, 3-octylene-2-ketone, anti-2-caprylic aldehyde, 2-tridecylene aldehyde, 2,4-decadienal and 2-hendecene exit in the cured meat product; one or more of the six substances corresponding to different products and sense and peroxide value indicators of the products are contrastively analyzed, people find that the six substances exist after the rancid odor appears and also in the early stage of oxidation, and the content of the six substances is gradually increased along with the prolonging of storage time. Further, the result proves that the six substances can be used as the indicator of the fat oxidative deterioration degree of the cured meat product in the storage process.

The invention discloses a preparation method of royal jelly acid. The preparation method comprises the following steps: carrying out monoacylation reaction on 1,8-octanediol used as an original raw material and anhydride (RCO)2O to obtain a compound shown in a general formula II; carrying out Tempo oxidation reaction on the compound shown in the general formula II to obtain a compound shown in a general formula III, namely 8-alkanoyloxy octyl aldehyde; carrying out Witting-Horner reaction on 8-alkanoyloxy octyl aldehyde and triethyl phosphonoacetate to obtain a compound shown in a general formula IV; and hydrolyzing and acidifying the compound shown in the general formula IV to obtain the royal jelly acid. In the preparation method disclosed by the invention, 8-alkanoyloxy octyl aldehyde is prepared by carrying out monoesterification on 1,8-octanediol used as the raw material by use of the anhydride and then oxidizing, thus the selectivity and yield are high; in the Witting-Horner reaction, an ionic liquid is used as a catalyst and has the actions of the catalyst and phase transfer catalysis, thereby greatly shortening the reaction time; and the technical route has the characteristics of short route, simplicity in operation and easiness for industrial production, and is a very economical and simple method for synthesizing the royal jelly acid.

The invention discloses a phthorimaea operculella zell attractant comprising the following components in parts by volume: 8-10 parts of alcohol compound, 0.5-1.5 parts of ester compound, 2-3 parts of aldehyde compound, 1-3 parts of terpene compound and 0.1-0.5 part of other compound, wherein the alcohol compound is any one of 1,8-eucalyptol and palustrol; the ester compound is any one of methyl jasmonate, anti-4, cis-7-C13 diene acetate and anti-4, cis-7, 10-C13 triene acetate; the aldehyde compound is any one of heptaldehyde, octyl aldehyde and nonaldehyde; the terpene compound is any one of limonene, phellandrene, terpinene, caryophyllene, pinene, elemene, ocimene, germacrene, farnesene and isolongifolene; and the other compound is any one of nicotine, solanone, norsolandione and para-cymene. The attractant is environment-friendly, does not injure natural enemies of pests and has remarkable attracting effect on phthorimaea operculella zell adults.

The invention provides a lime essence for a cigarette tip as well as a preparation method and application of the lime essence. The preparation method comprises the following steps: mixing and stirringlimette oil, bergamot oil, litsea cubeba oil, grapefruit oil, sweet orange oil and 75% alcohol, and removing terpenoid, so as to obtain a terpene-removed essential oil component A; and sequentially adding black pepper oil, lavender oil, Davana oil, eucalyptus oil, fennel oil, geraniol oil, linalool, hexenyl acetate, geranyl acetate, octyl aldehyde, geranialdehyde, limonene and 2-pinene into 95% alcohol or caprylic capric triglyceride, adding the terpene-removed essential oil component A, and uniformly stirring, so as to obtain the lime essence. The lime essence can be added into glycerol triacetate, directly added into the tip in a tip formation process or added into the tip after being directly prepared into a cigarette lime drop pill together with a drop pill packaging material by virtue of a drop pill machine, so that the cigarette is endowed with a characteristic lime fragrance in the smoking process, the elegance of the cigarette fragrances are improved, and the cigarette fragrances are rich and comfortable.

The invention discloses a black soybean milk flavor and a preparation method and an application thereof. The flavor comprises isovaleric aldehyde, methyl alcohol, isopentyl alcohol, hexanal, 2-methylpyrazine, furfural, trans-2-hexenal, furfuryl alcohol, hexyl alcohol, 2-heptanone, heptanal, 2-acetylfuran, 2, 5-methylpyrazine, 2, 3-dimethyl pyrazine, trans-2-heptenal, 5-methyl-furfural, benzaldehyde, heptanol, 1-octen-3-alcohol, 2-pentyl-furan, caprylaldehyde, 2-acetyl thiazole, trans-2-octenyl aldehyde, octanol, nonanal, capraldehyde, trans,trans-2,4-nonadienal, trans-2-decenal, 2-undecanone,trans,trans-2,4-heptadienal, trans-2-undecenal and propylene glycol. The method comprises the following steps: evenly mixing the above constituents, stewing and curing for 15 days, subpackaging to obtain the black soybean milk flavor. The flavor has convenient raw materials sources, mild fragrance and high naturalness, and is applied to preparing the beans products, is especially used for preparing black soybean milk beverage, not only can enhance mouthfeel, but also can better cover soil mildewed flavor brought by beans in basic materials.

Washing essence comprising 2-pentylcyclopentanone is disclosed. The washing essence comprises following components by mass: 0.1% of ethyl 2-methylbutyrate, 0.1% of ethyl 2-methylvalerate, 0.2% of octyl aldehyde, 0.6% of D-limonene, 0.7% of p-methyl anisole, 1% of dihydromyrcenol, 0.4% of allyl hexanoate, 2% of triplal, 2% of linalool, 0.6% of methyl benzoate, 0.1% of rose oxide, 4% of phenethyl alcohol, 0.2% of camphor, 4% of benzyl acetate, 1.5% of styralyl acetate, 0.4% of terpilenol, 0.7% of decanal, 2% of citronellol, 0.2% of allyl amyl glycolate, 0.1% of citral, 0.5% of geraniol, 0.1% of linalyl acetate, 0.8% of anisic aldehyde, 3% of the 2-pentylcyclopentanone, 1.2% of dipropylene glycol, and the like. Using of the 2-pentylcyclopentanone allows the whole fragrance of the essence to be finer and fuller, and aroma reserving effects to be more durable.

The invention relates to a lemon essence and a preparation method thereof. The lemon essence is prepared from the following raw materials in parts by weight: 0.1-10 parts of natural limette juice, 0.1-10 parts of natural lemon juice, 0.5-15 parts of lemon oil, 0.3-10 parts of limette oil, 0.01-3 parts of natural acetaldehyde, 0.01-2 parts of natural octyl aldehyde, 0.01-2 parts of natural decyl aldehyde, 0.01-2 parts of natural citral and 5-99 parts of a solvent. By adding the essence provided by the invention, the freshness, natural sense, characteristic aroma, fruit juice sense and aroma concentration of a lemon juice beverage are obviously improved, and bad smell of the fruit juice concentrate is obviously reduced.

The invention provides lemon essence used in oil-based ink. The lemon essence is prepared from a lemon essence body, maltodextrin and starch sodium octenylsuccinate, wherein the lemon essence body is prepared from triethyl citrate, methyl dihydrojasmonate, peach aldehyde, beta-naphthol ethyl ether, dodecanenitrile, beta-ionone, gamma-decalactone,floropai, allyl cyclohexanepropionate, verdyl acetate, damacscone alpha, vanillin acetate, neryl acetate, undecanal, lauraldehyde, citronellyl formate, geranyl formate, geraniol, citronellol, nerol, citral, capraldehyde, styralyl acetate, citriodora oil, isocyclocitral, triplal, dihydromyrcenol, linalool, allyl hexanoate, ethyl-2-methylbutyrate, terpinolene, Brazil orange oil, lemon oil terpene, octyl aldehyde, paracymene, tangerine aldehyde, vanillic aldehyde, grapefruit oil and glyceryl triacetate. The invention further provides a preparation method of the lemon essence used in the oil-based ink. By means of the lemon essence used in the oil-based ink and the preparation method of the lemon essence, the fragrance retention effect and oil solubility of the essence are improved.

The invention discloses a dark black chafer luring agent composition and application thereof and belongs to the technical field of insect sex pheromone preparation. The dark black chafer luring agent composition comprises a dark black chafer sex pheromone and a synergist, wherein the weight ratio of the dark black chafer sex pheromone to the synergist is 1: (0.5-100), the main components of the dark black chafer sex pheromone include isoleucinate and R-(-)-linalool, and the synergist is at least one of 6-methyl-5-heptylen-2-ketone, 2-ethyl-1-hexyl alcohol, octyl aldehyde and nonanal. The dark black chafer luring agent composition can be accurately applied to observation and prediction of the dark black chafer situation, large-number dark black chafer entrapment and disturbed mating and has important significance on comprehensive dark black chafer control.

The invention discloses an electroplating wastewater treating agent, which is prepared from the following components in parts by weight: 20 to 30 parts of reducing agent, 50 to 60 parts of alkaline matter, 30 to 40 parts of metal ion trapping agent, 10 to 15 parts of chromic nitrate, 10 to 15 parts of n-octyl aldehyde, 5 to 10 parts of graphene, 5 to 10 parts of starch xanthate, 30 to 40 parts of flocculating agent and 3 to 5 parts of coal gangue. The electroplating wastewater treating agent provided by the invention is easily obtained in raw materials, is easy to make, is low in cost, is high in the capacity of treating comprehensive electroplating wastewater, and is further convenient to use; the settling velocity of heavy metal ions can be quickened; the removal rate of the heavy metal ion reaches 99 percent.

The invention discloses grapefruit essence for water-based ink. The grapefruit essence for the water-based ink consists of the following ingredients in percentage by weight: 1 to 30 percent of grapefruit essence, 5 to 55 percent of composite modified oligosaccharide and deionized water, wherein the grapefruit essence consists of grapefruit oil, nootkatone, sweet orange oil, lemon oil, tangerine oil, capraldehyde, caprylaldehyde, ethyl butyrate, octyl acetate, linalool, linalyl acetate, terpilenol, terpinyl acetate and ethyl alcohol. The invention also provides a preparing method of the grapefruit essence for the water-based ink. According to the preparing method, the composite modified oligosaccharide is used as a wall material; the grapefruit essence is coated to form grapefruit nanocapsule slow-release essence, so that the fragrance retention and the water solubility of the essence are improved; the preparing method is applicable to the perfuming of the water-based ink. The grapefruit essence for the water-based ink has the advantages that the fragrance is fresh, intensive and lifelike; the natural feeling is high; the fragrance retention is durable.

The invention discloses a synthesis method and application of 7-methoxy-3,7-dimethyloctyl aldehyde. The synthesis method comprises the following steps: synthesis of intermediate enamine I: reacting a dimethyl amine deionized water solution with a certain concentration, a 4A molecular sieve and 3,7-dimethyl-6-octenal, carrying out vacuum filtration, and stratifying; and synthesis of 7-methoxy-3,7-dimethyloctyl aldehyde: reacting methanol, strong-acid solid composite catalyst, I, cyclohexane, potassium hydroxide and sodium carbonate, washing and stratifying. The low-price 3,7-dimethyl-6-octenal is used as the raw material, amines are utilized to implement carbonyl protection to convert the 3,7-dimethyl-6-octenal into enamine compounds, and the strong-acid solid composite catalyst is utilized to catalyze the etherification between the C=C bond and the methanol and implement neutralization and amine removal, thereby obtaining the target product. The invention has the advantages of simple production technique, mild operating conditions, low requirements for production equipment, cheap and accessible raw materials and high yield. The 7-methoxy-3,7-dimethyloctyl aldehyde has fresh subtle fragrance as well as fragrance of leaves, Convallaria majalis flowers and the like, and can be used in cosmetic essence.

There are provided methods of efficiently producing compounds that are, for example, sex pheromones of San Jose Scale. For example, there is provided a method for producing a 7-methyl-3-methylene-7-octenyl carboxylate compound (4), the method including the steps of: hydrolyzing a 7-methyl-3-methylene-7-octenal acetal compound (1) to obtain 7-methyl-3-methylene-7-octenal (2); reducing the 7-methyl-3-methylene-7-octenal (2) to obtain 7-methyl-3-methylene-7-octenol (3); and esterifying the 7-methyl-3-methylene-7-octenol (3) to obtain a 7-methyl-3-methylene-7-octenyl carboxylate compound (4).

The invention relates to the field of preparation processes of electronic atomized liquids, and particularly discloses a special sweet orange essence for an electronic atomized liquid. The sweet orange oil essence which is prepared from the following raw materials in parts by weight: 0.02 to 0.10 part of purified sweet orange oil, 0.09 to 0.20 part of sweet orange aldehyde, 0.05 to 0.3 part of octanal, 0.10 to 0.25 part of capraldehyde, 0.08 to 0.22 part of citral, 0.02 to 0.14 part of myrcene, 0.080 to 0.110 part of an alcohol mixture, 0.45 to 0.62 part of an ester mixture and 5 to 13 parts of a solvent, wherein the solvent is formed by mixing propylene glycol, water and ethanol; the purified sweet orange oil is prepared by removing terpenoids from sweet orange oil; and the electronic atomized liquid has the advantage that the essence is not easy to layer after being added into the electronic atomized liquid. In addition, the invention also provides a preparation method of the special sweet orange essence for the electronic atomized liquid.

The invention relates to a method for one-step synthesis of isooctylaldehyde from n-butyraldehyde catalyzed by a solid catalyst. The method comprises the following steps: adding a solid catalyst and n-butyraldehyde into an autoclave or a fixed-bed reactor, filling with hydrogen, and reacting at 120-200° C. to obtain isooctaldehyde; the solid catalyst is Pd / solid acid -Basic@C catalyst, wherein, the mass fraction of metal Pd in ​​the catalyst is 0.1-0.5%, the mass fraction of solid acid-base in the catalyst is 80-95%, and the rest is C. The invention has the advantages of short process flow, low equipment and operating costs, and environmental friendliness; at the same time, the designed and prepared Pd / solid acid-base@C catalyst has the characteristics of high activity, stability and selectivity.

The invention discloses flame-retardant antifouling paint, comprising the following raw material components in parts by mass: 45-55 parts of an aqueous solution, 4-6 parts of zinc oxide, 4-6 parts of zinc sulfide, 35-45 parts of silicon powder, 25-35 parts of titanium dioxide, 15-20 parts of zinc white, 8-16 parts of nano silica, 5-10 parts of starch, 3-6 parts of octyl aldehyde, 5-8 parts of a flame retardant, 2-3 parts of a thickener, 2-3 parts of a preservative, 2-3 parts of a bonding agent, 15-15 parts of solvent gasoline (paint solvent oil), and 2-3 parts of a coalescing agent. Paint particles smaller than 1 micron can be formed on the surface of the flame-retardant antifouling paint disclosed by the invention, so that the flame-retardant antifouling paint is smooth and durable, is improved in flame-retardant antifouling and self-cleaning properties, is easy to clean, and has a good using effect.

The invention discloses a synthesis method of cis (trans)-8-dodecenol acetate. The method comprises the following steps: placing 1, 8-octylene glycol in an acetic acid aqueous solution at normal temperature, and continuously stirring to react by taking sulfuric acid as a catalyst; continuously extracting the reaction system with petroleum ether in a centrifugal extractor, and obtaining 8-acetoxy-1-octanol after petroleum ether is recovered through distillation; adding water, ethyl acetate, sodium bromide and sodium acetate trihydrate into 8-acetoxy-1-octanol, stirring, adding tetramethylpiperidine oxide, dropwise adding sodium hypochlorite, stirring while dropwise adding, and reacting to generate 8-acetoxy-1-octanal; adding butyl triphenyl phosphonium bromide into tetrahydrofuran, dropwise adding organic alkali while stirring to react, continuously dropwise adding 8-acetoxy-1-octanal, and carrying out wittig reaction to generate the cis (trans)-8-dodecenol acetate. The method has the advantages of short period, few steps, high yield, simple post-treatment and the like, and is suitable for large-scale industrial production.

The invention provides a compound capable of increasing female thrips luring rate and indoor spawning quantity. The compound is prepared by mixing the solutions of octyl aldehyde, hexyl alcohol, geraniol, benzyl alcohol and cis-3-hexene acetate according to the mass ratio of (1-5):(1-20):(1-20):(5-25):(1-25), wherein the solution concentration of each component is 30microgram / ml. The compound is an active substance screened from various thrips host plant volatile substances and is evident in effect, harmless to thrips and the like. The reproduction behavior of the thrips can be stimulated whenthe compound exists, the thrips spawning quantity can be increased greatly, and female thrips luring rate can be evidently increased by more than 50% as compared with male thrips luring rate. The compound provides an important technical approach for indoor thrips population reproduction and provides a great number of stable insect sources for the researches of thrips invasion biological mechanismand drug resistance.

The invention provides a foot care solution preparation method, and relates to the field of foot care products. The foot care solution preparation method comprises the following steps of: mixing gypsum, brewer's grains and water, grinding into slurry, and filtering by using a 200-mesh screen to obtain filtrate; and adding bamboo charcoal to the filtrate, continuously stirring for 45 minutes, heating to 65 DEG C through microwave heating in a stirring process, then adding aucubin, 8-acetyloxy octyl aldehyde and caffeic acid, and continuously stirring for 25 minutes to obtain a foot care solution for softening foot cutin. The foot care solution is added to warm water for soaking soles of feet, has a relatively good softening effect on the foot cutin, a relatively good care effect on feet, a bacterium inhibition effect and a foot barbiers treatment effect and is capable of removing dead skin for feet.

The invention discloses a tableware cleaning agent and a preparation method thereof, wherein the tableware cleaning agent comprises the following components in parts by weight: 110-150 parts of an ethanol aqueous solution, 60-90 parts of octyl aldehyde, 75-105 parts of pelargonic aldehyde, 20-50 parts of 2,6-3-naphthalenedicarboxylic acid, 35-55 parts of paratoluenesulfonic acid sodium salt, 15-55 parts of laurate dihydroxyethylamide, 40-70 parts of methyl sulfate, 20-40 parts of diisopropylbenzene hydroperoxide and 5-15 parts of an anionic surfactant. The preparation method comprises the following steps: uniformly mixing ethanol aqueous solution, octyl aldehyde, pelargonic aldehyde, 2,6-3-naphthalenedicarboxylic acid and paratoluenesulfonic acid sodium salt, and then sequentially adding laurate dihydroxyethylamide, methyl sulfate, diisopropylbenzene hydroperoxide and the anionic surfactant, and then uniformly mixing again, so as to obtain the tableware cleaning agent. The tableware cleaning agent prepared by adopting the preparation method provided by the invention can more easily remove stains.

The invention provides a method for preparing n-octanal. Comprising the following steps: (1) carrying out gas phase condensation reaction on crotonaldehyde to obtain 2, 4, 6-octyltrienal; and (2) carrying out hydrogenation reaction on the 2, 4, 6-octyltrienal to obtain the n-caprylic aldehyde. The step (1) is carried out under the action of a modified basic catalyst, and the modified basic catalyst comprises an active component, a cocatalyst silver, cadmium oxide, lead oxide and a carrier. In the step (2), under the action of the modified palladium-carbon catalyst, the catalyst comprises the following components: palladium, nitrogen, phosphorus, sulfur, boron and a carbon-based carrier. The synthesis route is novel, the cheap and easily available crotonaldehyde is used as the starting raw material, the n-caprylic aldehyde is obtained through two-step reaction, the synthesis route is short, and the method has the potential of replacing an existing traditional process route. The modified basic catalyst is used as the catalyst, so that the selectivity of the condensation reaction is high. And completing high-selectivity hydrogenation of the 2, 4, 6-octyltrienal intermediate by adopting a modified palladium carbon catalyst to obtain an n-octanal product.

The invention belongs to the technical field of chemical synthesis, and particularly relates to octanal diuracil as well as a preparation method and application thereof. The octanal diuracil is prepared from 6-amino-1,3-dimethyluracil and octanal. According to the national standard GB2113-82 Plastic Whiteness Experimental Method, compared with an auxiliary agent used by a traditional calcium-zinc stabilizer, the caprylic aldehyde diuracil PVC heat stabilizer prepared by the invention has the advantages of excellent initial whiteness and good heat stability. A whiteness contrast test shows that a board produced by using the octanal uracil PVC heat stabilizer has higher initial whiteness. A dynamic stability performance comparison test also shows that the octanal uracil serving as the auxiliary agent of the PVC heat stabilizer prepared by the invention can be used for enabling the initial whiteness of a PVC bathroom board to be higher and the dynamic and static heat stabilization time to be obviously prolonged.

The invention relates to a graphene-based composite micro-sphere for cigarettes and a preparation method of the composite micro-sphere and application of the composite micro-sphere to cigarettes, andbelongs to the technical field of cigarette additives. The method includes the steps: firstly, reducing graphene oxide by natural reducing agents, and performing reaction on the acquired reduced graphene oxide, fruity aldehyde compounds and dopamine hydrochloride; secondly, performing Soxhlet extraction on mixture to obtain graphene-based composite materials with molecular recognition functions; finally, compounding various graphene-based composite materials prepared by different aldehyde compounds to prepare the graphene-based composite micro-sphere. The micro-sphere selectively adsorbs isovaleraldehyde, octyl aldehyde, nonyl aldehyde, decyl aldehyde and melonal from complex natural flavors and fragrances, adsorption objects and capacity can be controlled, the acting force between micro-spheres adsorption molecules mainly serves as non-covalent bond force, and the micro-sphere has good heat conductivity and can be rapidly desorbed in the using process. The micro-sphere is prepared into additives and added into a filter tip, fruity taste can be provided, smoking aroma quality of the cigarettes is improved, smoking comfort is improved, and structural thermal collapse can be prevented.

The invention relates to a preparation method of an anionic surfactant. Fatty aldehydes (caprylic aldehyde, n-capraldehyde and lauric aldehyde), malonic acid and sodium hydrogen sulfite are used as raw materials, and the surfactant is synthesized through a Doebner method and an addition reaction. The anionic surfactant is characterized in that the anionic surfactant simultaneously contains carboxyl and sulfonic acid groups, and has good temperature resistance, salt resistance, biological activity and acid and alkali resistance.

The present invention relates to an asymmetric synthesis method of Tricholoma matsutake alcohol enantiomers such as (R)-Tricholoma matsutake alcohol and (S)-Tricholoma matsutake alcohol. The asymmetric synthesis method comprises: obtaining an alkynyl zinc reagent from trimethylsilyne and diethyl zinc under the catalysis of a chiral catalyst BINOL, carrying out an asymmetric addition reaction on octanal, and carrying out a desilylation reaction and a reduction reaction to finally obtain the (R)-Tricholoma matsutake alcohol and the (S)-Tricholoma matsutake alcohol. According to the present invention, the route has advantages of simpleness, easy performing and environmental protection.