51 results about "Hexanol" patented technology

The invention discloses a method for synthesizing dialkyl terephthalate through waste PET plastic alcoholysis based on a VTa-coated NC / C catalyst, the conversion rate of PET plastic is 100%, the yield of dimethyl terephthalate and ethylene glycol is as high as 99%, no obvious inactivation phenomenon exists after the catalyst is used for 10 times, and the method is suitable for industrial production. The catalytic system is also effective to n-butyl alcohol, 2-ethylhexanol, isononyl alcohol, isodecyl alcohol and ethylene glycol, a series of plastic additives and ethylene glycol can be obtained, and the product yield is 89% or above.

This invention provides a phosphorus-free, multifunctional, environmentally friendly scouring agent, its preparation method, and its application, belonging to the field of textile printing and dyeing technology. The surfactants used in this invention (including 2-ethylhexanol alkyl glycoside, 2-propylheptanol alkyl glycoside, 2-propylheptanol xyloside, and isomeric tridecyl alcohol ether carboxylic acid) are all nonionic surfactants. The resulting phosphorus-free, multifunctional, environmentally friendly scouring agent is easily soluble in water, acid-resistant, resistant to high-concentration strong alkalis, hard water-resistant, low-foaming, and has strong penetrating power. It is widely applicable to cotton and its blended textile processes, achieving excellent whiteness and wicking effect in conventional annealing / scouring / bleaching processes. It contains no alkylphenol polyoxyethylene ethers or organophosphates, causing no environmental pollution and simplifying and making textile pretreatment processes more environmentally friendly.

This invention belongs to the field of biosensing and detection technology, specifically disclosing a Tau protein electrochemiluminescent aptamer sensor, its preparation method, and its application. The sensor uses a CsPbBr₃@PVP / Au composite material as the electrochemiluminescent substrate. A Tau protein-specific aptamer is immobilized on the substrate surface via Au-S bonds, and non-specific adsorption sites are blocked with 6-mercapto-1-hexanol. The CsPbBr₃@PVP / Au composite material is prepared by encapsulating CsPbBr₃ with PVP and then combining it with Au NPs. This invention utilizes the coordination passivation effect of PVP and CsPbBr₃ to significantly improve the aqueous stability and electrochemiluminescence efficiency of perovskite nanocrystals. Combined with the anchoring effect of AuNPs and the specific recognition effect of aptamers, it achieves ultrasensitive detection of Tau protein with a detection limit as low as 0.80 fg / mL. Furthermore, it exhibits excellent selectivity, stability, and detection accuracy in complex biological samples such as cerebrospinal fluid, providing a novel and efficient detection platform for the early diagnosis of Alzheimer's disease and showing promising clinical application prospects.

The invention provides a DHHB purification method which comprises the following steps: transferring a DHHB crude product into a washing kettle, adding water into an n-hexanol solution containing DHHB, stirring, standing for phase splitting, discarding a lower phase containing water-based colored impurities, and retaining an organic phase containing DHHB; transferring the DHHB organic phase after water washing to an n-hexanol evaporator, and evaporating out n-hexanol; 4-time crystallization: adding ethanol to dissolve the DHHB crude product after the n-hexanol is removed or the solid product obtained by the previous crystallization, cooling, stirring and crystallizing, filtering, washing the solid with cold ethanol, and reusing the filtrate obtained by the next crystallization in the previous crystallization step; transferring a solid obtained after fourth crystallization and filtration to a vacuum dryer, and drying to obtain a high-purity DHHB product; and feeding the filtrate subjected to primary crystallization and filtration into an ethanol evaporator, and distilling to recover ethanol. The invention provides a DHHB green purification process which is efficient, energy-saving, low in cost and high in yield of 95% or above.

The invention provides a nanofiber membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, preparing a first composition containing quantum dots and a polar solvent, wherein the surfaces of the quantum dots have 6-sulfydryl-1-hexanol ligands; s2, preparing a clarified second composition containing a polyvinylidene fluoride-hexafluoropropylene copolymer and a polar solvent; s3, uniformly mixing the first composition and the second composition to obtain a spinning solution; s4, preparing a nanofiber membrane by utilizing an electrostatic spinning process and the spinning solution; wherein the S1 is carried out before or after or synchronously with the S2. The membrane has the characteristics of high fluorescence performance of the quantum dots and stability of the polyvinylidene fluoride-hexafluoropropylene copolymer, and the fluorescence intensity and the storage stability of the ligand-modified nanofiber membrane are greatly improved.

The invention belongs to the technical field of environmental engineering and chemical separation, and particularly relates to a deep-eutectic solvent composition for efficiently extracting phenolic compounds and a preparation method of the deep-eutectic solvent composition. The deep-eutectic solvent composition for efficiently extracting the phenolic compounds, provided by the invention, consists of a hydrogen bond acceptor and a hydrogen bond donor in a molar ratio of (1-2): (1-9), the hydrogen bond donor comprises n-caprylic acid or n-hexyl alcohol; the hydrogen bond receptor comprises 1-ethyl-3-methylimidazole chloride or tetrabutylammonium bromide. The eutectic solvent composition has the advantages of high partition coefficient, low viscosity, high selectivity, rapid phase separation, environmental friendliness and the like, can efficiently extract phenol, resorcinol, o-cresol, m-cresol and p-cresol, and has single-stage extraction efficiency gt; the regeneration rate is high, and the method is suitable for high-concentration phenolic wastewater, polyhydroxy phenolic wastewater, continuous process and low-toxicity emission requirement scenes.

The present application provides a method for determining extractable organic fluorine in textiles by online combustion-ion chromatography system, and relates to the technical field of textile detection. The method specifically comprises the following steps: weighing the textile, immersing the textile in an organic solvent, then performing ultrasonic extraction to obtain an extraction solution; cooling and concentrating the extraction solution, using the same organic solvent to make up the volume to obtain a sample solution; adding n-hexanol to the sample solution for solvent replacement to obtain a test solution; burning the test solution under rich-oxygen high-temperature hydrolysis conditions, using pure water to absorb the generated gas to obtain an absorption solution; using an ion chromatograph to determine the content of fluorine ions in a fluorine ion standard working solution and the absorption solution respectively, drawing a standard working curve, and quantitatively calculating the content of extractable organic fluorine in the textile by external standard method. The method is verified by various textiles, and has good robustness; the loss of volatile substances and background pollution are effectively reduced, and the stability and accuracy of detection are improved.

The invention discloses a sintering slurry, a diffusion layer and a preparation method thereof, and relates to the technical field of capacitor electrode slurry, the sintering slurry comprises the following components in parts by weight: 60-68 parts of silver powder, 23-30 parts of an organic carrier and 6-10 parts of an inorganic additive; the organic carrier is prepared from polymethyl methacrylate, monomer resin, diethylene glycol monobutyl ether, medium-chain unsaturated fatty acid, 2-ethyl-1-hexanol and polyoxyethylene sorbitan monooleate; the inorganic additive comprises nano barium titanate and cerium oxide. According to the invention, the sintering slurry is directionally diffused under the action of gravity in the sintering process to form an internal net-shaped shielding structure, so that the purposes of reducing the manufacturing precision requirement of the ultra-wideband capacitor, improving the pressure resistance, reducing the metal migration risk and improving the design freedom degree are achieved.

The application belongs to the technical field of cosmetics, and particularly relates to an oat whole-component extract, an extraction process thereof, application of the oat whole-component extract in multifunctional cosmetics, and Pickering emulsion. The extraction process comprises the following steps: first, performing subcritical extraction on oat kernel fine powder to obtain oat oil and residues; second, mixing the residues with a buffer solution, performing ultrasonic-microwave assisted extraction, filtering, collecting an extract and filter residues; third, performing carboxylation reaction of the extract with CO2, then performing reaction with 3-diethylaminopropylamine, and finally performing reaction with hexanol to obtain oat alkaloids; and finally, performing extraction of the filter residues in water, and performing enzymatic hydrolysis using cellulase to obtain oat beta-glucan. The extraction process is green and environmentally friendly, and solves the problems of single component, high solvent residue and high energy consumption in the prior art. The extract exhibits significant multifunctional synergistic effect in cosmetics, and has industrialization potential.

This invention provides a method for the separation and purification of medium-chain carboxylic acids, belonging to the field of chemical separation and purification technology. The method includes pretreatment, alkalization concentration, acidification extraction, and vacuum distillation. In the pretreatment stage, anaerobic fermentation is used to lengthen the carbon chain, followed by filtration. The clarified fermentation broth is then alkalized and concentrated. In an alkaline environment, the carboxylic acid is converted into a non-volatile carboxylate, thus minimizing loss during concentration. After centrifugation to remove precipitated solids, the pH is adjusted to acidity, and extraction is performed using non-polar and / or weakly polar solvents, which improves the extraction rate of the target medium-chain carboxylic acid, the recovery rate of short-chain carboxylic acids, and the purity of the product. Using this separation and purification method, this invention separates and purifies n-hexanol from baijiu (Chinese liquor) lees, achieving a hexanoic acid yield of 77%, a mass purity of 87%, and a total acid purity of 97%.

The application relates to the technical field of electrochemical luminescence detection, and discloses a hyaluronidase detection method based on double-potential ratio electrochemical luminescence, which comprises the following steps: uniformly mixing cyclohexane, n-hexanol and triton X-100 in a serum bottle, adding Ru(bpy)3 2+ solution, and then performing magnetic stirring and centrifugal collection of Ru-SiO2 NP precipitates; the electrode after enzymolysis is used as a working electrode, a saturated Ag / AgCl electrode is used as a reference electrode, and a platinum wire electrode is used as a counter electrode to perform electrochemical luminescence detection. Traditional ECL sensors are mostly dependent on a single signal output mode, are easily affected by factors during the detection process, and result in the generation of false positive or false negative results. The application realizes the ultra-low background detection of HAase through the calculation of high / low potential ECL signal ratios, and effectively avoids the generation of false negative and false positive results.

The invention discloses a super-hydrophilic transparent coating based on surface tension adjustment and a preparation method of the super-hydrophilic transparent coating, and belongs to the technical field of functional coating materials. The invention aims to solve the problems that the production process is complicated and the product performance is unstable due to the fact that the existing water-based paint prepared coating depends on a complicated multi-component formula and fine process balance. The invention relates to a super-hydrophilic transparent coating based on surface tension adjustment. The super-hydrophilic transparent coating is prepared from an aliphatic waterborne polyurethane emulsion, a polyisocyanate curing agent, small molecular alcohol and 2-hexanol, the method comprises the following steps: 1, weighing; 2, preparing a water-based emulsion; (3) coating; and 4, post-processing. The super-hydrophilic transparent coating based on surface tension adjustment and the preparation method thereof are provided.

The present invention addresses the problem of providing technology that can reduce off-flavors derived from free medium-chain fatty acids in aqueous-phase-containing foods containing triglycerides that contain medium-chain fatty acids as constituent fatty acids.　The present invention provides a food composition, said food composition comprising an oil phase and aqueous phase and comprising a prescribed amount of one or more components selected from the group consisting of allyl isothiocyanate, 1-hexanol, 2-heptanone, and butyric acid, wherein the oil phase contains a medium-chain fatty acid, and the medium-chain fatty acid is in the form of a triglyceride constituent fatty acid and / or in the form of a free medium-chain fatty acid.

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.

The present invention relates to a process for preparing p-nitrobenzoic acid-2-ethyl hexylester comprising reacting p-nitrobenzoic acid, wherein an excess of 2-ethylhexanol acts as solvent and no additional solvent is added, or p-nitrobenzoic acid and 2-ethylhexanol are provided in equimolar amounts and no additional solvent is added, or 2-ethylhexanol is provided in substoichiometric amounts and no additional solvent is added. Further, the present invention relates to the p-nitrobenzoic acid-2-ethyl hexylester obtained by the process and having high purity and optimum product properties.

The invention relates to a method for recycling gas-phase rearrangement heavy components of caprolactam prepared from cyclohexanone-oxime, which comprises the following steps: carrying out negative pressure distillation on the gas-phase rearrangement heavy components of caprolactam prepared from cyclohexanone-oxime in a rectifying tower, and respectively collecting tower top fraction caprolactam monomers and tower bottoms; the method comprises the following steps: sequentially carrying out alcoholysis reaction and hydrogenation reaction on a caprolactam monomer, and collecting a reaction product 6-aminohexanol; carrying out saponification reaction on the tower bottoms to obtain saponified liquid; and mixing the saponification liquid, 6-aminohexanol, polyhydric alcohol and polyol ether to prepare the grinding aid. According to the method, deep utilization of gas-phase rearrangement heavy components is achieved, the obtained grinding aid is good in grinding aiding effect, and the screen residue reduction amount and the free calcium content reduction amount after calcination at 1450 DEG C are both high.

This invention belongs to the field of flaxseed oil preparation technology, specifically relating to a cold-pressed refined flaxseed oil and its preparation method and application. The preparation method includes the following steps: (1) Enzymatic hydrolysis: the impurity-removed flaxseeds are washed with water, dried, and then put into an enzymatic hydrolysis tank. Water and compound enzymes are added, stirred evenly, enzymatic hydrolysis is performed, enzymes are inactivated, cooled, centrifuged, and the solid phase material is collected to obtain enzymatically hydrolyzed flaxseeds; (2) Microwave pretreatment: the moisture content of the enzymatically hydrolyzed flaxseeds is adjusted, microwaved, and allowed to stand to obtain microwave-treated flaxseeds; (3) Low-temperature pressing; (4) Initial filtration of crude oil; (5) Hydration degumming; (6) Freeze-drying and crystallization separation. The preparation method of this invention can increase the oil yield while increasing the fatty acid content in flaxseed oil. The flaxseed oil has a high content of 2-ethylhexanol and hexanol, and a rich grassy flavor, making it a high-quality flaxseed oil.

The invention discloses a preparation method and a refining method of cbz-6-amino-1-hexanol, and the preparation method comprises the following steps: S1, dissolving sodium carbonate or potassium carbonate in water at 20-25 DEG C, and filtering after complete dissolution to obtain an aqueous alkali solution; s2, adding 6-amino-1-hexanol into the filtered aqueous alkali solution at the temperature of 20 to 25 DEG C; s3, benzyl chloroformate is dropwise added into the reaction system, and the temperature is controlled to be 20-40 DEG C in the dropwise adding process; s4: carrying out heat preservation reaction at 20-40 DEG C for 2.5-5 hours And S5, filtering is carried out, such that a cbz-6-amino-1-hexanol wet product is obtained. The invention also provides a refining method of the cbz-6-amino-1-hexanol crude product, and water and ethanol solvents are adopted during refining, so that the refining method is safe and reliable. According to the method, organic solvents such as tetrahydrofuran are not used, so that the method is more environment-friendly and safe, the material washing procedure is simple, and the purity is relatively high before refining; the yield of the synthetic route is high, the yield reaches 95% or above, and the synthesis cost can be remarkably reduced. According to the refining process, n-hexane and ethyl acetate do not need to be used, so that the safety and reliability of the refining process are improved.

The invention relates to the technical field of metabolite detection, and particularly discloses a method for detecting trimethylamine in an excrement sample. By improving a sample treatment method and optimizing headspace-gas chromatography conditions, the invention provides the method for measuring trimethylamine in the excrement sample, which is simple and convenient to operate, high in accuracy, excellent in precision and strong in applicability. According to the detection method, an acidic medium-chain alcohol extract liquid compounded by n-hexanol and an inorganic strong acid dilute solution is selected to treat an excrement sample. The acidic medium-chain alcohol extract liquid not only can efficiently extract, enrich and fix trimethylamine in a sample, but also can block metabolic transformation of trimethylamine and a precursor thereof by quenching a microbial reaction, so that the anti-interference capability is improved. In cooperation with optimized headspace-gas chromatography detection conditions, the detection sensitivity and accuracy are further improved, and a stable and reliable technical support is provided for risk assessment of diseases related to intestinal flora metabolism.

The application relates to a wetting reversal agent and a preparation method and application thereof, and belongs to the technical field of unconventional oil and gas exploitation. Raw materials of the wetting reversal agent include strong hydrophobic modified nano silicon dioxide and a synergist; the strong hydrophobic modified nano silicon dioxide is obtained by modifying and treating nano silicon dioxide with heptadecafluorodecyltrimethoxysilane; and the synergist includes polydimethylsiloxane, glycerol trioleate and 2-ethylhexanol polyoxyethylene ether. According to the embodiment of the application, the excellent water-repellent performance provided by the strong hydrophobic modified nano silicon dioxide and the surface tension reduction effect brought by the synergist are synergized, a more effective water lock inhibition system is formed, and the system jointly acts on the key link of the water lock problem possibly occurring in the fracturing process of deep tight gas reservoirs, so that the water lock inhibition capacity of the wetting reversal agent is improved in all directions.

The invention provides a preparation method for preparing n-hexanol by catalyzing one-step hydrogenation of 1, 2-epoxyhexane, which comprises the following steps: by taking 1, 2-epoxyhexane as a raw material, adding a solvent and a catalyst, introducing hydrogen, and carrying out catalytic hydrogenation reaction to prepare the n-hexanol. According to the method for preparing the n-hexanol by catalyzing the one-step hydrogenation of the 1, 2-epoxyhexane, the conversion rate of the 1, 2-epoxyhexane is high, the selectivity of the n-hexanol is high, and the yield of the n-hexanol is high; the catalyst has the catalytic characteristics of high activity, good stability, difficulty in inactivation and the like, and has a good industrial application prospect.

The invention discloses a continuous rectification separation device for a mixed solution after a reaction for preparing higher alcohol through catalytic conversion of ethanol and an operation method, the continuous rectification separation device mainly comprises eight rectification towers and a set of membrane separation device, and is divided into two parts, namely a light component separation system and a higher alcohol separation system; the method comprises the following steps: by taking substances subjected to catalytic conversion of ethanol as raw materials, firstly removing water, ethanol, n-butanol and other light components through a light component extraction tower, enabling the light components to enter a membrane separation device through heat exchange to remove water, and then separating and recovering ethanol and n-butanol by utilizing a rectifying tower; the tower kettle of the light component extraction tower is connected with a higher alcohol separation system, so that n-hexanol, 2-ethyl butanol, n-caprylic alcohol, 2-ethyl hexanol, n-decanol and 2-ethyl caprylic alcohol are separated one by one; various products can be produced at the same time, the purity of the products can be adjusted according to needs, and the method has the advantages of low energy consumption, high efficiency, good environmental protection benefits and the like.

The invention discloses an acidic emulsified liquid seasoning, and relates to a low-calorie sesame-containing acidic emulsified liquid seasoning, and although the acidic emulsified liquid seasoning does not contain cane sugar, the strong and mellow sesame flavor can be felt. The present invention relates to an acidic emulsified liquid seasoning which does not contain sucrose and contains sesame, edible fat and oil, an emulsifier and a sour material. In addition, the acidic emulsion liquid seasoning according to the present invention is characterized by further containing 2-hexanol (2-Hexanol).

The invention discloses a photoelectrochemical aptamer sensor based on a BiOI-In2O3 composite material as well as a preparation method and application of the photoelectrochemical aptamer sensor, and belongs to the technical field of photoelectrochemistry. The method comprises the following steps: in the presence of a solvent, mixing BiOI with In2O3, and carrying out electrostatic adsorption to obtain a BiOI-In2O3 Z-type heterojunction composite material; the BiOI-In2O3 Z-type heterojunction composite material is dropwise added to the surface of an FTO electrode, and a BiOI-In2O3 / FTO electrode is obtained; and dropwise adding a chitosan solution, a glutaraldehyde solution, an aptamer and a 6-mercapto-1-hexanol solution on the BiOI-In2O3 / FTO electrode in sequence to obtain the BiOI-In2O3 / FTO composite material. The sensor has the advantages of high sensitivity, high selectivity, high stability, wide detection linear range and low detection limit.

The invention provides a method for preparing n-hexanol through a continuous reaction, which comprises the following steps: (1) carrying out an isomerization reaction on a raw material butyl ethylene oxide under the action of an isomerization catalyst to obtain an isomerization reaction solution; (2) carrying out hydrogenation reaction on the isomerization reaction liquid under the action of a hydrogenation catalyst to obtain hydrogenation reaction liquid; and (3) carrying out post-treatment on the hydrogenation reaction liquid to obtain the n-hexanol, wherein the isomerization catalyst is a supported catalyst and comprises a carrier, an active metal component and a metal additive, the carrier is one of aluminum oxide, silicon oxide, silicon nitride, silicon carbide, SBA-15 and a molecular sieve, the active metal component is one or more of chromium, niobium, zirconium, molybdenum and tungsten, and the metal additive is one or more of potassium, calcium, zinc, copper, gallium and indium. According to the invention, the hydrogenation catalyst is directly added into the isomerization reaction liquid obtained by the isomerization reaction to carry out the hydrogenation reaction, and the obtained hydrogenation reaction liquid is separated and purified to obtain the high-purity n-hexanol product. In the isomerization reaction, the active components and auxiliary components in the isomerization catalyst cooperate to catalyze and inhibit side reactions such as dehydration and polymerization in the isomerization reaction, and high target product selectivity and high stability are obtained.

The invention discloses an acidic emulsified liquid seasoning, and relates to a low-calorie acidic emulsified liquid seasoning containing sesame, and although the calorie of the acidic emulsified liquid seasoning is low, the acidic emulsified liquid seasoning can feel strong and mellow sesame flavor. The present invention relates to an acidic emulsified liquid seasoning having a calorie of 230 kcal / 100 g or less and containing sesame, edible fat and oil, an emulsifier, and a sour material. In addition, the acidic emulsion liquid seasoning according to the present invention is characterized by further containing 2-hexanol (2-Hexanol).

The invention belongs to the field of chemical engineering, and relates to a production method for preparing n-hexylamine by using a high-performance catalyst with Al2O3 as a carrier. The invention provides a supported catalyst. The supported catalyst is composed of a catalyst carrier and cobalt, copper, zinc and molybdenum which serve as active components. The invention also provides a method for preparing n-hexylamine by taking n-hexanol as a raw material, and n-hexanol, liquid ammonia and hydrogen are subjected to amination reaction on a catalyst bed layer by using the supported catalyst. The preparation method of the n-hexylamine is free of an external hydrogen source and depends on hydrogen transfer in the catalyst; all atoms in reactants enter a product or byproduct water, and the atom utilization rate is close to 100%; the byproduct is only water, toxic waste is avoided, and the method has the characteristics of clean and environment-friendly process and the like.

The invention belongs to the technical field of linseed oil preparation, and particularly relates to cold-pressed refined linseed oil as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) enzymolysis treatment: washing impurity-removed flaxseeds with water, drying, putting the dried flaxseeds into an enzymolysis tank, adding water and compound enzyme, uniformly stirring, performing enzymolysis, enzyme deactivation, cooling, centrifuging, and collecting a solid-phase material to obtain enzymolysis flaxseeds; (2) microwave pretreatment: adjusting the water content of the enzymolysis flaxseeds, performing microwave treatment, and standing to obtain microwave-treated flaxseeds; (3) squeezing at low temperature; (4) primary filtration of crude oil; (5) hydrating and degumming; and (6) carrying out freezing dewaxing and crystallization separation. According to the preparation method, the content of fatty acid in the linseed oil can be increased while the oil yield is increased, the content of 2-ethylhexanol and hexanol in the linseed oil is high, the green grass flavor is rich, and the linseed oil belongs to high-quality linseed oil.

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.

DEPCT66 This invention relates to a process for preparing a linker, which is... The benefits of conjugating molecules for therapeutic applications (e.g., cytotoxic substances). With targeted moisturizers (e.g., proteins, peptides, antibodies, nanoparticles, nucleic acids). During this process, lipase-like lipase B from Candida antarctica was used. Enantioselective resolution of (S,S)-2-benzyl. Thiocyclohexanol or (S,S)-2-benzyl thiocycloheptanol in the presence of an acyl group additive. (acylating agent) which is reduced for release of the protective barrier to obtain (S,S)-2-mercaptocyclo. Hexanol or (S,S)-2-mercaptocycloheptanol can then be used for crosslinking. Moisturizing agents for targeted moisturizing treatments;