22 results about "Cinnamic acid ester" patented technology

The invention relates to the technical field of chemical synthesis, and particularly discloses a compound with a peculiar smell removing function as well as a preparation method and application thereof. The chemical name of the compound is 2-ethoxy-3-((E)-methoxy-3-oxopropyl-1-alkene-1-yl) phenyl cinnamate, the smell of the compound is extremely light, sulfur-containing and nitrogen-containing compounds causing stink can be captured through a Michael addition reaction, and efficient peculiar smell removal is achieved. The preparation method comprises the following steps: (1) taking cinnamic acid as an initial raw material, and reacting with diethylamino sulfur trifluoride to prepare cinnamic acid acyl fluoride; (2) carrying out an esterification reaction on the cinnamic acid acyl fluoride and 2-methoxy-3-hydroxybenzaldehyde in the presence of 4-dimethylaminopyridine, so as to obtain 2-methoxy-3-formyl phenyl cinnamate; and (3) carrying out Wittig reaction on the 2-methoxy-3-formyl phenyl cinnamate and a phosphorus ylide reagent, so as to obtain the target compound.

The invention discloses a cool-feeling sunscreen composite fabric and a preparation method thereof in the field of functional textile materials, and the cool-feeling sunscreen composite fabric comprises the following raw materials: base cloth, polyethylene glycol grafted silicon dioxide microspheres, a block copolymer of cinnamate and polyurethane, glyoxal and sodium polyacrylate, wherein the polyethylene glycol grafted silicon dioxide microspheres are prepared by carrying out condensation reaction on silicon dioxide microspheres subjected to surface amino modification and polyethylene glycol, and the cinnamate and polyurethane segmented copolymer is prepared by carrying out esterification reaction on a polyurethane prepolymer and cinnamate; the preparation method of the composite fabric comprises the processes of base cloth pretreatment, finishing liquid preparation, two-time dipping and two-time rolling, pre-drying and baking. According to the composite fabric, through the synergistic effect of the two modified compounds, continuous cool feeling and efficient sunscreen are achieved, meanwhile, the washability is improved, and the requirements of outdoor and sportswear are met.

The invention belongs to the technical field of skin care products, and particularly relates to a skin care composition for improving skin elasticity and a preparation method and application thereof. The skin care composition is prepared from the following raw materials in percentage by mass: 0.1 to 0.5 percent of ganoderma sinensis extract, 10 to 20 percent of rice fermentation product filtrate, 1 to 5 percent of ginseng root extract, 1 to 5 percent of peony extract, 0.1 to 1 percent of saussurea involucrata extract, 0.1 to 0.2 percent of pentaerythritol tetra (bis-tert-butyl hydroxy hydrocinnamate) ester, 10 to 20 percent of hydrogenated polyisobutene and the balance of caprylic / caprin. In the preparation process of the rice fermentation product filtrate, the oligomeric schizophyllan and adenosine components are added, and the synergistic effect of the oligomeric schizophyllan and adenosine can effectively improve the content of total flavonoids and total polyphenols in the rice fermentation product filtrate. Furthermore, the content of total flavonoids and total polyphenols in the rice fermentation product filtrate is increased, so that the improvement effect of the skin care product on the skin elasticity can be effectively improved.

The application belongs to the field of organic chemistry and provides a 1,3-dithiane substituted cyclobutene derivative and a preparation method and application thereof. That is, with acetylenic thiane compound and cinnamate compound as raw materials, intermolecular cycloaddition occurs under the promotion of a base to obtain. And through negative ion relay chemistry, a more complex cyclobutene can be obtained. The structural feature is that it has a structure shown in formula (I), wherein R 1 , R 2 is aryl; R 3 is alkyl or aryl; X = oxygen (O) or sulfur (S); and E is hydrogen, alkyl or aryl. The method provided by the application uses a cheap strong base as a promoter, avoids using a noble metal catalyst, has mild reaction conditions, simple operation, wide substrate applicability, does not need anhydrous and oxygen-free operation, has strong practicability and a prospect of industrial application. The method provided by the application can be used for synthesis and later modification of natural products, drug molecules and functional material molecules.

The invention belongs to the technical field of organic synthesis, and particularly relates to fludioxonil and a synthesis method thereof, and the synthesis method of fludioxonil comprises the following steps: synthesizing 3-methyl salicylaldehyde by using o-cresol; the method comprises the following steps: oxidizing 3-methyl salicylaldehyde into 3-methyl catechol; 3-methyl catechol is used for synthesizing methyl benzodioxole; chloridizing methyl benzodioxole to obtain a first intermediate; performing fluorine-chlorine exchange on the first intermediate to obtain a second intermediate; preparing a reaction solution by using the second intermediate, and performing electro-catalysis on the reaction solution to obtain a third intermediate; synthesizing a cinnamate intermediate by using the third intermediate; and synthesizing fludioxonil by using the cinnamate intermediate. According to the synthesis method, butyl lithium is not used as a catalyst, synthesis conditions are mild and easy to control, the product yield and purity are high, and the whole synthesis process is clean and safe.

The invention provides a cyclopentene chromene-cinnamate compound as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis. According to the invention, mangiferin is taken as a guide, and a cyclopentenochromene structure is designed and synthesized from cyclopentenopyrane and a chromene skeleton by using molecular hybridization and skeleton transition strategies. According to the cyclopentenochromene-cinnamate derivative containing the cinnamic acid active fragment, the cinnamic acid fragment with pesticide activity is grafted to the 8-site of cyclopentenochromene, the cyclopentenochromene-cinnamate derivative containing the cinnamic acid active fragment is synthesized, and the obtained compound has good insecticidal activity, bactericidal activity and plant virus resisting activity.

The invention discloses a cinnamate derivative and a preparation method thereof, and belongs to the technical field of cinnamate derivatives. The preparation method of the cinnamate derivative comprises the following steps: mixing para-substituted cinnamic acid, dialkyl sulfate and anhydrous alcohol, and then carrying out heating reflux reaction to obtain the cinnamate derivative. In addition, the invention also provides the cinnamate derivative which is prepared by the preparation method. According to the preparation method provided by the invention, the cinnamate derivative is prepared with high selectivity, and the corrosivity of the raw materials to equipment is low.

The invention discloses an anti-wrinkle anti-ultraviolet core bast fiber spinning yarn and a preparation method thereof, and relates to the technical field of spinning yarns. When the anti-wrinkle and anti-ultraviolet core bast fiber spinning yarn is prepared, 6-bromine-1-hexyl acrylate and N-methylimidazole react to prepare an alkenyl imidazolium salt monomer; the preparation method comprises the following steps: carrying out a reaction on methyl p-hydroxycinnamate and acryloyl chloride to prepare an alkenyl cinnamate monomer; grafting an alkenyl imidazolium salt monomer and an alkenyl cinnamate monomer onto the pretreated flax fiber to prepare a modified flax fiber; performing blowing, cotton carding, drawing and roving processes on the modified flax fibers to obtain flax roving; converging and twisting the rough flax yarn and the polyester filament yarn to obtain core flax yarn; and finishing the core hemp yarn with 1, 6-hexamethylenediamine and coumarin-7-carboxylic acid in sequence to obtain the anti-wrinkle and anti-ultraviolet core hemp spun yarn. The anti-wrinkle and anti-ultraviolet core bast fiber spinning yarn prepared by the invention has the advantages of ultraviolet prevention and bacteria resistance.

Provided are a capsule and hollow particles based on particles formed from a glycopolymer containing glucose units in which at least one hydroxyl group is esterified with cinnamic acid to form a cinnamic acid ester (-OCO-CH = CH-C6H5).

The present invention relates to a combination of the following active ingredients: c) in cosmetic excipients a) one or more alkylamide thiazoles and b) diethylhexyl clove subunit malonates.

This invention discloses a photosensitive resin composition for use as an alignment agent, the composition comprising: (A) a dianhydride monomer containing a photosensitive group, wherein the photosensitive group is selected from at least one of cinnamate, chalcone, anthracene, coumarin, or benzophenone; (B) a hydrogen donor diamine monomer; and (C) an aliphatic diamine monomer. This invention uses a self-initiating photosensitive resin composition to replace formulation systems relying on exogenous photoinitiators, introducing long alkyl chains into the polyimide molecular chain, which are complementary to the liquid crystal molecular structure, enhancing the interfacial anchoring energy, stabilizing the liquid crystal pretilt angle, and thus maintaining a stable display response time.

The application provides a kind of nano-liposome protective agent with anti-ultraviolet and antioxidant function, preparation method, preparation and application, it is related to cosmetic technical field.The nano-liposome protective agent includes the following components: benzotriazolyl dodecyl p-cresol / benzotriazolyl butylphenol sulfonic acid sodium, tris (tetramethylhydroxy piperidol) citrate, troxerutin / rutin and pentaerythritol tetra (bis-tert-butyl hydroxyl hydrogenated cinnamic acid) ester / tocopheryl acetate.The nano-liposome protective agent has anti-ultraviolet and antioxidant activity at the same time, when it is added to nano-liposome, it can effectively reduce the loss of active ingredient activity and nano-liposome phospholipid membrane material caused by ultraviolet and oxygen during storage and shelf life, achieve the effect of prolonging shelf life, improving curative effect and promoting the percutaneous penetration of nano-liposome.

This invention provides a metal surface anti-corrosion coating and its processing method, relating to the field of coating processing technology. The processing method includes: (1) reacting 2-furan carboxaldehyde and 2-acetylpyridine to obtain 2,2':6',2"-terpyridine-4-carboxylic acid; (2) reacting boron nitride and urea to obtain amino-functionalized boron nitride, and then reacting it with 2,2':6',2"-terpyridine-4-carboxylic acid to obtain modified boron nitride; (3) reacting 3,4,5-trimethoxycinnamic acid sequentially with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and epichlorohydrin to obtain cinnamic acid ester epoxy monomer; (4) mixing epoxy resin, cinnamic acid ester epoxy monomer, modified boron nitride, curing agent, defoamer, and ethyl acetate to prepare a coating slurry, coating and drying to obtain a metal surface anti-corrosion coating. The metal surface anti-corrosion coating obtained by the above processing method has good anti-corrosion and weather resistance.

The invention discloses a tranexamic acid-hydroxycinnamate conjugate as well as a preparation method and application thereof, and belongs to the technical field of medicines, a carboxyl terminal of tranexamic acid is connected with a hydroxyl terminal on a 4-position carbon atom of hydroxycinnamate in an ester bond form, and a compound with a brand new molecular structure is constructed. The cationic surfactant has the effect of cationic surface activity. The tranexamic acid-hydroxycinnamic acid ester conjugate has good in-vivo degradability, tranexamic acid, hydroxycinnamic acid or ester thereof are generated through degradation, tranexamic acid can effectively play a fibrinolytic inhibition role, stabilize thrombus and further promote the fibrosis process of blood vessels and hydroxycinnamic acid or ester thereof, inflammatory response caused by sclerotherapy is reduced, and the tranexamic acid-hydroxycinnamic acid ester conjugate can be used for treating sclerotherapy. Side effects accompanied by sclerotherapy are reduced, and the medication safety is improved.

The invention relates to the technical field of cosmetics, in particular to moisturizing glaze cream with modifying, repairing and brightening effects and a preparation method of the moisturizing glaze cream. The moisturizing glaze paste is prepared from the following raw materials: a phase A1, a phase A, a phase B, a phase C, a phase D and a phase E, the phase A1 comprises a hydrogenated (styrene / isoprene) copolymer, pentaerythritol tetra (bis-tert-butyl hydroxy hydrocinnamic acid) ester, octyldodecanol and hydrogenated polyisobutene; and the phase B comprises the following raw materials: castor seed oil, hydrogenated castor oil, butyrospermum parkii butter, hydrogenated decene dimer, an ethylene / propylene / styrene copolymer and polyisobutene. The moisturizing glaze cream prepared by the invention can realize 8-hour long-acting moisturizing, has the effects of'glaze 'bright gloss and natural modification, is smooth and easy to smear, regular in forming, stable in performance and high in safety, is suitable for most skin types, and meets the comprehensive requirements of consumers on'modification-moisturizing-repairing-gloss' of beauty makeup products.

This invention provides a novel film for preparing air column bags and its preparation method. The film has an A / B / A three-layer co-extrusion structure with a total thickness of 80-120 μm. By weight, the A layer raw materials include: 45-55 parts linear low-density polyethylene, 8-12 parts EPDM rubber, 12-18 parts reactive pre-crosslinked hybrid toughening particles, 5-8 parts ionic liquid intercalated modified hydrophobic hydrotalcite, 3-5 parts maleic anhydride-grafted polyethylene, and maleic anhydride-grafted polyglycerol-10-month... The air column bag of this invention comprises 2-4 parts of cinnamic acid ester, 6-10 parts of ethylene-octene copolymer, 0.3-0.6 parts of antioxidant compound, 0.5-1.0 parts of processing aid, and 0.1-0.3 parts of dicyandiamide latent catalyst. By weight, the B layer raw materials include: 60-70 parts of ethylene-vinyl alcohol copolymer, 15-20 parts of polyamide, 8-12 parts of ionic liquid intercalated modified hydrophobic hydrotalcite, 5-8 parts of maleic anhydride grafted ethylene-vinyl alcohol copolymer, and 0.2-0.4 parts of antioxidant. The air column bag of this invention is made of an A / B / A three-layer co-extruded film, possessing excellent mechanical properties, puncture resistance, barrier properties, weather resistance, and interlayer bonding properties, exhibiting outstanding overall performance.

The invention relates to a two-phase mixed fat-reducing and shaping cream as well as a preparation method and application thereof. The fat-reducing and shaping cream comprises an oil phase and a water phase, wherein the oil phase is prepared from the following raw materials: natural vegetable fat, plant essential oil, isohexadecane, caprylic / capric triglyceride, cinnamon oil, blumea oil, tocopherol, bisabolol and pentaerythritol tetra (bis-tert-butylhydroxyhydrocinnamate) ester; the water phase is prepared from the following raw materials: pentahydroxy flavone, a compound of a paraguay tea leaf extract and a caffeine / caffeine palmityl carnitine compound, a glaucine and coco-glucoside compound, a calanthe extract and gluconolactone compound, p-hydroxyacetophenone, a pH regulator, a thickening agent, an emulsifier, a humectant, an emollient and water. The fat-reducing and shaping cream is high in safety, has remarkable fat-reducing and tightening effects after being continuously smeared and massaged for 2 weeks, and can be used by people with daily obesity, muscle relaxation and the like.

The present invention discloses a light-responsive antioxidant preparation, a preparation method thereof and an application. The method includes: dispersing or dissolving a biopolymer containing an amino group or a thiol group in a solvent, adjusting the pH of the solution to deprotonate it, and then adding an alcohol medium containing a cinnamate derivative to crosslink with it, obtaining a shell structure with light-responsive ability through Michael addition and Schiff base reaction, and endowing the shell structure with antioxidant property. After combining the shell structure with an appropriate core component, by forming Pickering emulsions or microcapsules, the ability to reduce particle size and control release after natural light irradiation is achieved. The preparation process of the present invention is simple, environmentally friendly and has high biosafety in the light-responsive mode.

The invention relates to the technical field of medical chemistry, in particular to a macrolide cinnamate derivative as well as a preparation method and application thereof. The macrolide cinnamate derivative is characterized in that the macrolide cinnamate derivative has a structure as shown in a formula (I), and data of the embodiment shows that the macrolide cinnamate derivative provided by the invention has a good inhibition effect on HCoV-229E, a part of compounds also have a good inhibition effect on HCoV-OC43, and meanwhile, the cytotoxicity is relatively low. Therefore, the macrolide cinnamate derivative disclosed by the invention is expected to become a novel anti-coronavirus drug. Formula (I).

The dipping type eyeliner pen comprises the following components in percentage by weight: 40-70% of water, 0-5% of xanthan gum, 0-5% of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 0-5% of sodium dodecyl benzene sulfonate, 0-5% of sodium dodecyl benzene sulfonate, 0-5% of sodium dodecyl benzene sulfonate, 0 The formula comprises the following components in percentage by weight: 2%-7% of 1, 3-propylene glycol, 1%-5% of magnesium aluminum silicate, 0%-3% of aminomethyl propylene glycol, 1%-6% of acrylic acid (ester) / octyl acrylamide copolymer, 0%-3% of glycerol, 0%-3% of bis-PEG / PPG-20 / 5 PEG / PPG-20 / 5 polydimethylsiloxane, 0%-3% of methoxy PEG / PPG-25 / 4 polydimethylsiloxane, 0%-3% of caprylic acid / capric triglyceride, 0%-1% of pentaerythritol tetra (bis-tert-butyl hydroxy hydrocinnamate) ester and 10%-15% of ferric oxide toner. The adhesive comprises, by weight, 8-18% of styrene / acrylic acid (ester) copolymer, 0-1% of sodium dehydroacetate, 0-1% of phenoxyethanol and 0-1% of caprylyl glycol. The film-forming agents of the acrylic acid (ester) / octyl acrylamide copolymer and the styrene / acrylic acid (ester) copolymer are used, so that the retention capability of active ingredients on the skin can be improved, the waterproof and anti-rubbing functions are improved, and meanwhile, a super-strong and lasting effect can be formed.

This invention discloses a squalane lip essence oil and its preparation process, comprising the following raw material components: Phase A: tridecyl trimellitate; diisostearyl malate; ethylhexyl palmitate; 972 hydrogen powder; Phase B: glyceryl behenate / eicosadecanate; polyisobutylene; Phase C: hydrogenated (styrene / isoprene) copolymer / pentaerythritol tetra(bis-tert-butylhydroxyhydrogenated cinnamic acid) ester; plant squalane; camellia seed oil; shea butter; avocado oil; baobab oil; comfrey oil; vitamin E acetate; Phase D: pigment; The lip essence oil of this invention can significantly moisturize and nourish, and has repairing, anti-inflammatory and soothing effects on the lip skin.

The application discloses flavonoid compounds with neuroprotective activity, and a preparation method and application thereof, and particularly relates to four specific ester derivatives of formononetin, namely, an allyl carbonate derivative (compound A), a 2-chlorobenzoic acid ester derivative (compound B), a cinnamic acid ester derivative (compound C), and a propionic acid ester derivative (compound D). The application significantly improves the defects of the parent compound, such as poor liposolubility, low blood-brain barrier permeability and low bioavailability, through specific ester group modification. Experiments show that the lipid-water partition coefficients and bioavailability of the four types of derivatives are significantly improved compared with the parent compound. In addition, the four types of derivatives show better neuroprotective activity than the parent compound and a positive control drug in Alzheimer's disease and Parkinson's disease models, and show a synergistic effect between the parent compound and the modification group. The application further provides a preparation method of the above compounds and application of the above compounds in preparation of drugs for treating neurodegenerative diseases.