14 results about "Nonene" patented technology

This invention provides a tert-nonylthiol and its synthesis method. The synthesis steps are as follows: nonene and hydrogen sulfide are preheated separately, then the preheated nonene and hydrogen sulfide are mixed, and the mixture is reacted under the action of a catalyst to obtain tert-nonylthiol. The preheating temperature of nonene is 40-50℃, and the preheating temperature of hydrogen sulfide is 50-60℃. This invention provides mild reaction conditions and precise preheating of nonene and hydrogen chloride separately. The product prepared by this method has a purity of over 99.0%, meeting the requirements of high-end industrial applications for high-purity tert-nonylthiol.

The invention discloses a preparation method of alpha-hexylcinnamyl aldehyde, which is characterized in that under the protection of nitrogen, an inorganic alkali aqueous solution is used as a catalyst, a composition of a non-polar solvent and an ether solvent is used as a solvent, and benzaldehyde and octanal react to prepare the alpha-hexylcinnamyl aldehyde. By adopting the method disclosed by the invention, the content of hexyl nonenal which is a condensation product of octanal can be effectively reduced, the selectivity of alpha-hexylcinnamyl aldehyde (relative to octanal) is improved, the product quality is ensured, and the jasmine flower fragrance is characterized; in addition, the wastewater amount can be effectively reduced, the technological process is simplified, and the product competitiveness is improved.

The invention belongs to the technical field of nanocellulose, and discloses a preparation method of ionic liquid dissolved nanocellulose. The method comprises the following steps: 1) mixing a cellulose raw material with ionic liquid, heating, stirring and dissolving to obtain a cellulose solution; the ionic liquid is one or more of a 1-propyl-3-methylimidazole chloride (brominated) compound, a 1-butyl-3-methylimidazole chloride (brominated) compound, a 1-ethyl-3-methylimidazole chloride (brominated) compound, a 1, 5-diazabicyclo [4.3. 0]-5-nonene-alkane chloride, and a 1, 8-diazabicyclo [4.3. 0]-5-nonene-alkane chloride; and 2) adding the cellulose solution into an ethanol-water anti-solvent for nanocrystallization treatment, washing with water, separating out nanocellulose, and recovering the ionic liquid. The method disclosed by the invention is simple, green and efficient, the yield of the nanocellulose is high, the energy consumption is low, the ionic liquid can be recycled and is easy to recover, and the method has a good application prospect.

This invention discloses a cyclononenyl bicovalent macroporous covalent organic framework and its preparation method. The framework contains both C-C and B-O covalent bonds, exhibiting a ring-shaped macroporous structure. The preparation method involves mixing 10,15-dihydro-5H-tribenzo[a,d,g][9]cyclononen-2,3,7,8,12,13-hexanol with a diboronic acid monomer at a molar ratio of 3:2, dissolving the mixture in a mixed solvent of mesitylene and dioxane, reacting at 90°C under nitrogen protection, and obtaining the target product after filtration, washing, and drying. The diboronic acid monomer is 1,4-phenylenediboric acid or 4,4''-biphenylenediboric acid. This material has the characteristics of good thermal stability, ideal specific surface area and pore size greater than 2nm. It exhibits excellent adsorption capacity and selectivity for CO2, low-carbon alkanes, acetylene and other substances. It can be used in the separation of low-carbon alkanes, adsorption of dye macromolecules, photoelectrocatalytic carriers and other fields. Moreover, no external transition metal catalyst is required in the synthesis process, which makes it low-cost and environmentally friendly.

To provide a perfume composition for deodorization capable of deodorizing all of feces and urine odor, food odor and body odor without generating chemical odor.SOLUTION: The perfume composition for deodorization contains the following components (A) and (B), wherein the mass ratio [(B) / (A)] of the component (B) to the component (A) is 0.12 or more. (A) an aromatic ring-free unsaturated aldehyde having a molecular weight of 100 to 160 and 9 to 10 carbon atoms, and (B) one or more selected from the group consisting of 2-methyl-2-pentenoic acid, cis-3-hexenyl benzoate, citronellyl butyrate, benzaldehyde, trans-3-hexenol, cis-6-none-1-ol, and thymol SELECTED DRAWING: None

The present application discloses a composition comprising A and B, wherein the A is selected from one or more of the following: a compound represented by formula (I) and its salt and / or hexamethylenetetramine, 1,5-diazabicyclo[4.3.0]-non-5-ene, 1,8-diazabicyclo[5.4.0]undec-7-ene; the B is selected from a compound represented by formula II, and a method for preparing a compound of formula VI by using the above composition, wherein the definitions of the substituents in formula III, formula V and formula VI are the same as those in the description. The A and the B in the composition of the present application have a synergistic effect.

The invention discloses a heat-triggered in-situ reinforced polyolefin high polymer material and a preparation method thereof, and belongs to the technical field of high polymer materials. The preparation method comprises the following steps: carrying out a ring-opening metathesis polymerization reaction on 9-tosyl-9-azabicyclo [6.1. 0] nonyl-4-ene and cyclooctene under the catalysis of a ruthenium-based catalyst to obtain a ring-opening metathesis polymerization reaction product, mixing the ring-opening metathesis polymerization reaction product with elemental sulfur, and carrying out a cross-linking reaction under the catalysis of an organic alkali to obtain the thermal-trigger in-situ reinforced polyolefin polymer material. The heat-triggered in-situ reinforced polyolefin high polymer material provided by the invention has the characteristics of glass-like high polymers in an initial state, and can realize preliminary recycling of waste materials or precise molding of special-shaped parts; the thermosetting resin also has mechanical properties close to those of traditional thermosetting resin, and can be competent for high-load and high-temperature extreme service environments; the reinforcing process is spontaneously or inductively generated after the part is formed, and additional reinforcing fibers or fillers do not need to be added.

The application relates to the technical field of adsorbents, and particularly discloses an adsorbent for efficiently separating 1-nonene and 2-methyl-1-octene and a preparation method thereof. The method specifically comprises the following steps: S1: preparing an aqueous solution of 0.5-3 mass parts of a transition metal salt, and impregnating 10 mass parts of a porous carrier; the transition metal salt is at least one selected from FeCl3, CuCl2 and CoCl2; the porous carrier is at least one selected from gamma-Al2O3, ZIF-8 and ZIF-20; and S2: performing solvent removal treatment on the impregnated porous carrier under an inert gas atmosphere to obtain the adsorbent. The adsorbent is mainly composed of the porous carrier and an active metal component. Compared with the porous carrier without the loaded transition metal salt, the adsorbent can improve the purity of 1-nonene. The method has a simple process flow, low raw material price and large-scale preparation potential.

The invention belongs to the technical field of fine chemical engineering, and particularly relates to a synthesis method of cis-6-nonene-1-ol. The preparation method comprises the following steps: enabling 1, 6-hexanediol to react with tert-butyldimethylsilyl chloride, so as to obtain 6-((tert-butyldimethylsilyl) oxy) hex-1-alcohol; and adding an oxidizing agent into the 6-((tert-butyldimethylsilyl) oxy) hexane-1-alcohol to obtain the 6-((tert-butyldimethylsilyl) oxy) hexanal. And adding triphenyl (propylidene)-phosphorus into the 6-((tert-butyldimethylsilyl) oxy) hexanal to obtain the (Z)-tert-butyldimethyl (6-alkene-1-oxy) silane. The preparation method comprises the following steps: adding triphenyl (propylidene)-phosphorus into the 6-((tert-butyldimethylsilyl) oxy) hexanal; tetrabutylammonium fluoride is added into the (Z)-tert-butyl dimethyl (6-ene-1-oxy) silane, and the cis-6-nonene-1-ol is obtained. The synthetic route is mild in reaction condition, low in cost and suitable for industrial production, and the total yield can reach 29%. And secondly, the synthetic route does not generate harmful substances or dangerous compounds, and is environment-friendly.

The invention relates to a method for preparing coal-based mPAO and the prepared mPAO.The method comprises the steps that 1, coal-based Fischer-Tropsch synthesis light oil containing C5-C9 fractions is subjected to first fraction cutting and first deoxidation treatment, and 1-nonene is obtained; the coal-based Fischer-Tropsch synthesis heavy oil containing the C10-C18 fractions is subjected to second fraction cutting and second deoxidation treatment, and 1-tridecene is obtained; and (2) in an inert atmosphere, in the presence of a metallocene catalyst and an auxiliary agent, contacting the 1-nonene with the 1-tridecene, and carrying out a polymerization reaction. The method disclosed by the invention is mild in condition, the application field of the olefin raw material of the coal-based Fischer-Tropsch synthetic oil can be widened, the use efficiency of odd-carbon alpha-olefin is improved, and the prepared mPAO is high in viscosity, high in VI value and low in pour point.

The invention discloses a cyclooctyne-derived phosphoramidite monomeric compound as shown in a formula I and a preparation method and application thereof, and belongs to the field of chemical modification of oligonucleotide and development of functional nucleic acid, the preparation method comprises the following steps: cyclopropanation is carried out on cyclooctyl-1, 5-diene and ethyl diazoacetate to obtain bicyclo [6.1. 0] non-4-ene-9-carboxylic acid ethyl ester, and the bicyclo [6.1. 0] non-4-ene-9-carboxylic acid ethyl ester is subjected to cyclopropanation to obtain the cyclooctyne-derived phosphoramidite monomeric compound as shown in the formula II; the preparation method comprises the following steps: carrying out an addition reaction with bromine and a subsequent elimination reaction to obtain bicyclo [6.1. 0] nonyl-4-alkyne-9-carboxylic acid ethyl ester, carrying out ester hydrolysis to obtain bicyclo [6.1. 0] nonyl-4-alkyne-9-carboxylic acid, carrying out a condensation reaction on the bicyclo [6.1. 0] nonyl-4-alkyne-9-carboxylic acid and 6-amino-1-hexanol to obtain N-(6-hydroxyhexyl) bicyclo [6.1. 0] nonyl-4-alkyne-9-carboxamide, and carrying out a condensation reaction on the N-(6-hydroxyhexyl) bicyclo [6.1. 0] nonyl-4-alkyne-9-carboxamide and 2-cyanoethyl-N, N-dimethylformamide to obtain the target product. And reacting with N, N-diisopropyl phosphoramidite chloride to obtain a target product. The compound is applied to oligonucleotide alkynyl modification, and a new thought and a valuable intermediate are provided for functionalization of DNA / RNA.

The present application relates to the field of catalysts, in particular to a kind of high-efficiency propylene trimerization multi-active center catalyst and its preparation method.The propylene trimerization multi-active center catalyst is composed of porous carrier and Lewis acid, wherein the Lewis acid is any two or more combinations in AlCl3, CuCl2, ZnCl2.The present application combines different kinds of Lewis acid with porous carrier together, and the multi-active center catalyst suitable for propylene trimerization is prepared by impregnation method.The results show that compared with single Lewis acid catalyst, the propylene conversion rate and the selectivity of trimerization product 1-nonene of the obtained catalyst are improved.The method has simple process flow, low raw material price and has the potential for large-scale preparation.

The present invention relates to a composition comprising saturated nonanoic acid or a salt of saturated nonanoic acid, at least one monounsaturated nonanoic acid and at least one emulsifier, a process for the preparation of said composition and the use of said composition in weed control applications.

The invention provides a method for preparing nonene through propylene trimerization and a process system thereof, and relates to the technical field of fine chemical engineering, and the method comprises the following steps: carrying out reaction and gas-liquid separation on propylene under the catalysis of a heterogeneous catalyst to obtain a mixed product of dimerization, trimerization and tetramerization; the heterogeneous catalyst comprises at least one of a Zr-loaded catalyst, a Ni-loaded catalyst, a W-Zr composite oxide catalyst and a Si-Zr composite oxide catalyst; and carrying out two-stage falling film evaporation on the obtained mixed product to separate out tripolypropylene, so as to obtain nonene. The method is simple in technological process and mild in reaction condition, the catalyst is stable in form and easy to recycle, the propylene conversion rate and the C9 product selectivity can be remarkably improved, and industrial large-scale production of nonene is facilitated.