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40results about How to "Unique chemical structure" patented technology

Polyethenoxyamines used as main agent of gasoline detergent and preparation method thereof

The invention relates to a polyetheramine used as the major component of gasoline detergent and the preparation method, which can be indicated by a general formula (1), in the formula (1), n is the repeated unit of the polyether segmer and the value is between 9 to 34; R1 is any one of the alkyl (C4 to C20), nonyl phenyl, octyl phenyl, dodecyl phenyl, pentadecyl phenyl, dinonyl phenyl and 2,6-di-tert-butyl-p-methylphenyl; R2 is any one of the hydrogen, methyl, ethyl, isopropyl or butyl. The preparation method comprises two steps: the preparation of polyether and the preparation of polyetheramine by the polyether with hydro-ammonification in a batch tank reactor. The polyetheramine used as the major component of gasoline detergent can be used as the major component of gasoline detergent and has the advantages of inhibiting carbon accumulation in the intake system and the combustion chamber of gasoline engine.
Owner:金浦新材料股份有限公司

Bi-component waterborne polyurethane floor coating and preparing method thereof

InactiveCN105255336AHigh content of hydroxyl valueLow content of ringsPolyurea/polyurethane coatingsEnvironmental resistanceDefoaming Agents
The invention discloses a bi-component waterborne polyurethane floor coating and a preparing method thereof. The coating is prepared from a component A and a component B, the component A uses organic-silicone-modified polyurethane polyalcohol aqueous dispersion as a basic component and is prepared by adding and dispersing pigment, filler, a wetting agent, a defoaming agent, a dispersing agent, a thickening agent, a flatting agent and deionized water, and the component B is hydrophilic modified aliphatic polyisocyanate. The bi-component waterborne polyurethane floor coating is safe and environmentally friendly, the film elasticity can be controlled by adjusting the component ratio, and the coating is environmentally friendly, economical, good in quality and capable of being widely used for internal and external wall floor protection and decoration on different occasions.
Owner:ANHUI UNIVERSITY

Novel dendroid macromolecule and preparation method thereof

InactiveCN101062973AUnique chemical structureUnique physical propertiesPolyesterPolyamide
The invention discloses a dendroid macromolecule material with poly hydroxy fatty acid ether, polylactic acid, lactic acid-glycolic acid copolymer, poly (epsilon-caprolactone), aromatic polyester, polyamide, polyurethane, polycarbonate and so on macromolecular material as base material, which is characterized by the following: proceeding esterification or ester exchange with base material and compound generated branched; getting the dendroid macromolecule material; combining property of dendroid macromolecule and biodegradable macromolecule; controlling chemical constitution, structure and molecular shape to needs; possessing special chemical constitution and physical property; modifying poly hydroxy fatty acid ether, polylactic acid, lactic acid-glycolic acid copolymer, poly (epsilon-caprolactone), aromatic polyester, polyamide, polyurethane, polycarbonate and so on macromolecular material as additive; becoming compatible agent of multiple diverse structure macromolecule material.
Owner:SHANTOU UNIV

Abietate alcohol ether type quaternary ammonium salt surface active agent and preparation method thereof

The invention discloses an abietate alcohol ether type quaternary ammonium salt surface active agent. The general structural formula is as follows: the molecular weight n of polyethylene glycol (PEG) in the formula is any one in 200, 400, 600, 1000, 2000 and 4000, and in the formula, the R is any one in methyl CH3, ethyl CH2CH3, and ethanol base CH2CH2OH. The invention also comprises a preparation method of the surface active agent. The method comprise that a one-pot method is adopted, rosin and polyethylene glycol are subjected to esterification to form rosin polyethylene glycol monoester, hydroxide radical in the polyethylene glycol is subjected to etherification through epoxy chloropropane, and an epoxy group and tertiary amine hydrochloride are quaternized to obtain the abietate alcohol ether type quaternary ammonium salt surface active agent. The critical micelle concentration of prepared surface active agent is 0.1-0.3 mmol / L, and the range of surface tension is 37-39.5 mN / m. Molecules contain nonionic functional groups and cation functional groups, and the abietate alcohol ether type quaternary ammonium salt surface active agent is a novel functional environment-friendly surface active agent.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Colophony/fatty acid sealing end non-ionic surface active agent and preparation method thereof

The invention discloses a colophony / fatty acid sealing end non-ionic surface active agent and a preparation method thereof. Colophony is monocarboxylic acid containing a three-loop diterpene structure, such as common colophony or disproportionated rosin or hydrogenated rosin; and fatty acid is monocarboxylic acid with a linear chain structure, such as stearic acid or palmitinic acid or oleic acid. The one-pot preparation method comprises the following steps of: firstly, performing esterification on fatty acid and polyglycol to form fatty acid polyethylene glycol monoester, and then carrying out reaction on the fatty acid polyethylene glycol monoester and colophony to generate the colophony polyethylene glycol fatty acid ester, wherein the critical micelle concentration of the prepared surface active agent is 0.01-0.1 mmol / L, and the surface tension range of the surface active agent is 40.7-54.8 mN / m. The novel functional green surface active agent provided by the invention has the high activity of a linear chain surface active agent and the high spreading property of a colophony surface active agent.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

High-strength self-healing material and preparation method thereof

The invention relates to a high-strength self-healing material and a preparation method thereof. The high-strength self-healing material adopts a structural formula as follows: FORMULA, wherein a lateral group R1 adopts a structural formula of -OCOR1' or -OH, and n is greater than or equal to 5 and smaller than or equal to 500. The high-strength self-healing material is prepared by polymerizing the same polyamide monomer under vacuum or copolymerizing different polyamide monomers under vacuum. The high-strength self-healing material synthesized by the preparation method provided by the invention has a large number of non-covalent bonds and relatively low glass transition temperature, so that the high-strength self-healing material has excellent autonomous healing ability; moreover, the high-strength self-healing material adopts a unique chemical structure, and has a large number of reversible non-covalent bonds and a large number of uniformly distributed nanocrystalline regions, so that the defect of low strength of an autonomous healing material is overcome.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Fluorine-containing plastic processing assistant and preparation method thereof

InactiveCN104371227AReduce shear forceEliminate the phenomenon of "shark skin"Active agentPolymer
The invention provides a fluorine-containing plastic processing assistant and a preparation method thereof. The assistant comprises the following components in parts by weight: 20-60 parts of fluorine-containing polymer, 20-60 parts of interfacial agent and 15-30 parts of heat stabilizer. The method comprises the following steps: proportionally adding the interfacial agent and heat stabilizer into a reaction kettle, adding the fluorine-containing polymer when the temperature reaches 120-140 DEG C, thoroughly and uniformly mixing, and discharging to obtain the finished product.
Owner:ZHEJIANG BILI PACKAGING

Naphthalenedicarboxamide-containing compound and preparation method thereof as well as plant growth regulator composition comprising same

The invention relates to a naphthalenedicarboxamide-containing compound having the following general formula (I) (img file='DDA0000458054830000011. TIF' wi='992' he='376' / ), wherei, in the formula, X is selected from Cl or Br; and M is selected from K, Na or NH4. The invention also relates to a preparation method of the compound. The invention also relates to a plant growth regulator composition comprising the compound. Compared with an existing plant growth regulator, the plant growth regulator composition disclosed by the invention has excellent comprehensive performance.
Owner:HANGZHOU UDRAGON CHEMICAL CO LTD

Beet alkaline plant growth regulator containing cinnamamide groups

The invention discloses a beet alkaline plant growth regulator containing cinnamamide groups. The structure is shown as a general formula I. In the formula, X is selected from C1 or Br; Y is selected from H or C1; Z is selected from H or C1; M is selected from Na, K or NH4. The compound with the general formula I has excellent functions of promoting sprouting and rooting, increasing yield and improving quality, and can be widely applied to the yield increase or the survival rate increase of agriculture or forestry.
Owner:QINGDAO UNIV OF SCI & TECH

Spiro indolinone compound, and preparation method and application thereof

The invention belongs to the technical field of pesticides, and particularly relates to a spiro indolinone compound, and a preparation method and application thereof. According to the preparation method, a dispiro[benzofuranone-2,3'- pyrrolidone-2',3''-indolinone] compound is obtained by dissolving an N-substituted indigo derivative, alpha-amino acid and an aurone derivative in an organic solventaccording to a certain proportion in a one-pot synthesizing mode, removing the organic solvent after a TLC detection reaction is ended and recrystallizing; and the preparation method is simple. The dispiro[benzofuranone-2,3'- pyrrolidone-2',3''-indolinone] compound disclosed by the invention shows good activity to plant virus, and particularly has a very good prevention and treatment effect on preventing and treating tobacco mosaic virus.
Owner:JIANGSU UNIV

Tearless hair and body shampoo for infant

The invention discloses tearless hair and body shampoo for an infant. The tearless hair and body shampoo is prepared from 17 to 19 weight percent of disodium cocoamphodiacetate, 4.5 to 5.5 weight percent of cinnamyl glucoside or sodium hydroxypropyl sulfonate, 1.5 to 2.5 weight percent of alkyl glucoside and 0.3 to 0.6 weight percent of bactericidal composition, wherein the bactericidal composition is prepared from 1.0 to 3.0 percent of grapefruit extract, 3.0 to 10.0 percent of mangnolia officinalis bark extract, 3.0 to 8.0 percent of rhizoma zingiberis recens extract, 3.0 to 8.0 percent of pericarpium zanthoxyli extract and 71 to 90 percent of polyatomic alcohol. The composition disclosed by the invention has the characteristics of dominant expression in the lasting antibacterial property, excellent antibacterial effect, mildness and no irritation.
Owner:广州好润生物科技有限公司

Indole spiropyridino coumarin compound as well as preparation method and application thereof

The invention belongs to the technical field of pesticides, and particularly relates to an indole spiropyridino coumarin compound as well as a preparation method and application thereof. According to the present invention, the isatin derivative, the 1, 3-dicarbonyl compound and the 4-aminocoumarin are adopted as the raw materials, the indole spiropyridino coumarin compound is synthesized through the one-pot method, and the indole spiropyridino coumarin compound has characteristics of unique chemical structure, higher research value and higher application potential. The preparation method provided by the invention has the advantages of cheap raw materials, simple process and strong universality, and is suitable for industrial production. Particularly, the method for preparing the indole spiropyridino coumarin compound by taking water as a solvent has the characteristics of being green, safe, efficient and environment-friendly. The indole spiropyridino coumarin compound provided by the invention has good bacteriostatic activity, has inhibitory activity on common plant pathogenic bacteria such as peanut brown spots, apple ring spots, wheat sheath blight, watermelon anthracnose and rice seedling, and has a potential application value.
Owner:JIANGSU UNIV

Pesticide composition containing graphene oxide

The invention provides a preparation method of a pesticide composition containing graphene oxide. The insecticide comprises the following components in percentage by mass: 5%-10% of chlorfenapyr serving as a component A, 0.5%-10% of indoxacarb, emamectin benzoate, methoxyfenozide or chlorantraniliprole serving as a component B, 10%-20% of graphene oxide serving as a synergist, 2%-5% of sodium alkyl sulfate serving as an emulsifier, 1%-5% of polyoxyethylene ether serving as a dispersing agent, 1%-5% of ethylene glycol or propylene glycol serving as an anti-freezing agent, 0.2%-0.5% of sodium benzoate serving as a preservative, 0.2%-0.5% of magnesium aluminum silicate serving as a thickening agent, 1%-3% of organic silicon serving as a defoaming agent, and the balance of deionized water. Thepesticide composition is prepared by stirring, mixing and grinding.
Owner:河南勇冠乔迪农业科技有限公司

Chemical structures of 11 novel phenolic acid compounds with clinical urinary system drug-resistant bacteria resistant activity and application thereof

The invention relates to chemical structures of 11 phenolic acid compounds separated from clinical urinary system resistant active effective parts of Clerodend ranthus spicatus and having novel structures and an application thereof in preparation of medicaments for treating and / or preventing clinical urinary system drug-resistant bacteria. Eight new phenolic acid components are separated from the effective parts by using various separation techniques such as column chromatography. The chemical structures of the separated eight phenolic acid compounds with novel structures are identified by using modern wave spectra techniques (IR, UV, MS, 1D, 2D-NMR), and the compounds are respectively named as Clerodendranoic acid A(1), Clerodendranoic acid B(2), Clerodendranoic acid C(3), Clerodendranoic acid D(4), Clerodendranoic acid E(5), Clerodendranoic acid F(6), Clerodendranoic acid G(7), Clerodendranoic acid H(8), Clerodendranoic acid I(9), Clerodendranoic acid J(10) and Clerodendranoic acid(11). The 11 new compounds have the structural feature of caffeic acid or (and) rosmarinic acid polymers with novel structures.
Owner:INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI

Rosin-based micromolecular organic gel and cyclo-hexane gel formed by same

The invention discloses a rosin-based micromolecular organic gel and cyclo-hexane gel formed by the same, and belongs to the field of chemical utilization of rosin. According to the invention, dehydroabietic acid and lysine ethyl ester hydrochloride are used as raw materials, an amidation reaction is carried out to obtain a rosin-based amphiphilic molecule, and meanwhile, the invention provides the structure of the rosin-based micromolecular gel and the gelling performance of the rosin-based micromolecular gel in different kinds of organic solvents. The micromolecular organic gel can be used for gelling cyclo-hexane, and shows a very good gelling capability. China is rich in rosin resources, development of rosin and rosin products is promoted, and a new way is explored for high-added-valueutilization of rosin.
Owner:JIANGNAN UNIV

Culture medium for identifying gram-negative and positive bacteria and use method

InactiveCN103436589APromote growthDiffusion retardation or slowingMicrobiological testing/measurementCyclodextrinCulture mediums
The invention relates to a culture medium for identifying gram-negative and positive bacteria and a use method, particularly, a culture medium for identifying the gram-negative and positive bacteria through stronger fluorescence produced by strains on a flat plate by expressing the property of L-alanine aminopeptidase by using gram-negative bacteria, taking L-Alanine-AMC-TFA (L-alanine-7-Amino-4-Methylcoumarin Trifluoroacetic Acid) as a substrate of the enzyme, blocking the diffusion of produced 4-methylcoumarin by using cyclodextrin, and a use method thereof. According to the culture medium and the method, the same result as the conventional gram staining method can be obtained during strain separation; the culture medium and the method have the advantages of high specificity, high sensitivity, easiness in operation and simple result judgment and the like, are suitable for the fields such as medical clinical microorganism examination, food safety microorganism examination and environmental protection and have broad application prospect.
Owner:CHINESE ACAD OF INSPECTION & QUARANTINE

N-methoxyl formamide-orientated method for synthesizing ferrocene and pyridone derivative

The invention discloses an N-methoxyl formamide-orientated method for synthesizing a ferrocene and pyridone derivative. According to the method, under the conditions that palladium acetate is taken as a catalyst, copper acetate is taken as a catalyst promoter and quaternary ammonium salt and alkali are taken as additives, an N-methoxyl ferrocene and [c] pyridine-2(1H)-ketone derivative is obtained by carrying out a cyclization reaction on N-methoxyl ferrocene formamide and alkyne. The method adopts an N-methoxyl formamide-orientated carbon-hydrogen bond and nitrogen-hydrogen bond double-activation reaction to synthesize the N-methoxyl ferrocene and [c] pyridine-2(1H)-ketone derivative in one step. The organometallic condensed heterocyclic compounds are unique in structure, thus being hard to prepare by a conventional method; the method provided by the invention has the characteristics of being easy in obtaining of raw materials and mild in reaction conditions, not needing the protection of inert gas, being high in synthetic yield, and the like; therefore, a new way is provided for the synthesis of novel ferrocene and heterocyclic compounds, and the method has an important significance for expanding the application of the compounds in the fields such as medicinal chemistry, material chemistry, catalysts and the like.
Owner:SHANDONG NORMAL UNIV

A kind of high-strength self-healing material and its preparation method

The invention relates to a high-strength self-healing material and a preparation method thereof. The high-strength self-healing material adopts a structural formula as follows: FORMULA, wherein a lateral group R1 adopts a structural formula of -OCOR1' or -OH, and n is greater than or equal to 5 and smaller than or equal to 500. The high-strength self-healing material is prepared by polymerizing the same polyamide monomer under vacuum or copolymerizing different polyamide monomers under vacuum. The high-strength self-healing material synthesized by the preparation method provided by the invention has a large number of non-covalent bonds and relatively low glass transition temperature, so that the high-strength self-healing material has excellent autonomous healing ability; moreover, the high-strength self-healing material adopts a unique chemical structure, and has a large number of reversible non-covalent bonds and a large number of uniformly distributed nanocrystalline regions, so that the defect of low strength of an autonomous healing material is overcome.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Sulfur-containing furandicarboxylic acid polyester and preparation method thereof

The invention discloses sulfur-containing furandicarboxylic acid polyester, and relates to the field of biomass-based high polymer materials, and the structural formula of the sulfur-containing furandicarboxylic acid polyester is shown in the specification, n is more than or equal to 5 and less than or equal to 3000, R on the main chain is a disulfide bond, and R is any one of structures shown in the specification. The invention also provides a preparation method of the polyester. The invention has the beneficial effects that the polyester has a unique chemical structure and excellent mechanical properties, and the mechanical property parameters after tabletting and film making are as follows: the breaking strength is 14.7 Mpa, and the elongation at break is 420%.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Method for the synthesis of ferrocene and pyridone derivatives directed by n-methoxy formamide

The invention discloses an N-methoxyl formamide-orientated method for synthesizing a ferrocene and pyridone derivative. According to the method, under the conditions that palladium acetate is taken as a catalyst, copper acetate is taken as a catalyst promoter and quaternary ammonium salt and alkali are taken as additives, an N-methoxyl ferrocene and [c] pyridine-2(1H)-ketone derivative is obtained by carrying out a cyclization reaction on N-methoxyl ferrocene formamide and alkyne. The method adopts an N-methoxyl formamide-orientated carbon-hydrogen bond and nitrogen-hydrogen bond double-activation reaction to synthesize the N-methoxyl ferrocene and [c] pyridine-2(1H)-ketone derivative in one step. The organometallic condensed heterocyclic compounds are unique in structure, thus being hard to prepare by a conventional method; the method provided by the invention has the characteristics of being easy in obtaining of raw materials and mild in reaction conditions, not needing the protection of inert gas, being high in synthetic yield, and the like; therefore, a new way is provided for the synthesis of novel ferrocene and heterocyclic compounds, and the method has an important significance for expanding the application of the compounds in the fields such as medicinal chemistry, material chemistry, catalysts and the like.
Owner:SHANDONG NORMAL UNIV

Tooth whitening composition, oral care cleaning product and preparation method of oral care cleaning product

The invention provides a tooth whitening composition, an oral care cleaning product and a preparation method of the oral care cleaning product, and belongs to the technical field of oral health care, the tooth whitening composition comprises cross-linked povidone, phosphate and a high-cleaning abrasive, and the mass ratio of the cross-linked povidone to the phosphate to the high-cleaning abrasive is (1-5): (1-10): (5-20); the oral care cleaning product provided by the invention comprises the tooth whitening composition, is an anhydrous formula, and has a remarkable tooth whitening effect. Meanwhile, the product can be kept for 3 months in a low-temperature (-18 DEG C) and high-temperature (50 DEG C) environment, the paste is not separated out and does not become thick, the PH value and the phosphate content are stable, and the stability is improved. The preparation method disclosed by the invention is simple in process, green and environment-friendly.
Owner:克劳丽化妆品股份有限公司

Novel isopentenyl naphthoquinone obtained in active fraction for promoting blood circulation to remove blood stasis in clinopodium chinense (Benth.) O. Kuntze. and preparation method thereof

InactiveCN103664859AUnique chemical structureStrong activity of promoting blood circulation and removing blood stasisOrganic active ingredientsOrganic chemistryChemical compoundColumn chromatography
The invention relates to isopentenyl naphthoquinone obtained in the active fraction for promoting blood circulation to remove blood stasis in clinopodium chinense (Benth.) O. Kuntze. in a novel structure. A preparation method comprises the steps of extracting the dried overground part of clinopodium chinense (Benth.) O. Kuntze. by water; purifying and enriching an extract by macroporous resin to obtain a 50-95% ethanol eluate; then, enriching through alkali dissolution and acid deposition, and refining to obtain the active fraction of clinopodium chinense (Benth.) O. Kuntze.. One novel isopentenyl naphthoquinone is separated from the active fraction of clinopodium chinense (Benth.) O. Kuntze. through various separating technologies such as column chromatography and the like. The separated compound is identified by applying modern spectrum technologies (IR, UV, MS, 1D, 2D-NMR), and the compound is named as 2, 2-dimethyl-3, 10-dihydroxy-3, 4, 4a, 10b-tetrahydro-5H-naphtho[1, 2-b]-pyran-6-one (1). The novel isopentenyl naphthoquinone is characterized in that the compound is a polymer of naphthoquinone and / or isoamylene in a novel structure.
Owner:INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI

A kind of synthetic method of tetraphenylene compound

The invention relates to a synthesis method of a tetraphenylene compound. The structure of the tetraphenylene compound is as shown in the description. The synthesis method comprises the following steps of adding a 2-iodobiphenyl compound, a palladium catalyst and silver salt into an organic solvent, carrying out a heating reaction, separating a product, and then drying, so that a target product is obtained. The 2-iodobiphenyl compound is a mixture of a compound A and a compound B; the structural formulas of the compound A and the compound B are as shown in the description respectively, wherein R1, R2, R3 and R4 are all one of hydrogen, alkyl, halogen or aryl. Compared with the prior art, the synthesis method has advantages that the reaction step is short, the time is short, the efficiency is high, the yield is high, the reaction condition is mild, the operation is simple and convenient, and the like.
Owner:TONGJI UNIV

Lubricant for metal cold working and preparation method thereof

The invention discloses a lubricant for metal cold working and a preparation method thereof. The lubricant is mainly composed of PAO poly alpha olefin synthetic oil, aquadag, molybdenum disulfide, butter and nanocarbon. Wherein the mass percent of each component is as follows: 10%-90% of PAO poly alpha olefin synthetic oil, 5%-20% of aquadag, 0.5%-10% of molybdenum disulfide, 0.5%-55% of butter and 0.001%-5% of nanocarbon; in addition, a complete process for preparing the lubricant is provided. The lubricant provided by the invention is simple in preparation method, ingredients are easy to purchase, and the cost is reduced; the lubricant can effectively reduce the friction coefficient in the metal cold working process, can be prepared into a liquid state or a paste state to be coated on the surface of a metal workpiece according to the requirements of on-site working conditions, and is beneficial to rapid diffusion of heat in the machining process, so that it is ensured that the machining process is orderly, stable and continuous.
Owner:西安西部新锆科技股份有限公司

Abietate alcohol ether type quaternary ammonium salt surface active agent and preparation method thereof

The invention discloses a rosin ester alcohol ether type quaternary ammonium salt surfactant. Its general structural formula is as follows: in the formula, the molecular weight n of polyethylene glycol PEG is any one of 200, 400, 600, 1000, 2000 and 4000. , in the formula, R is any one of methyl CH3, ethyl CH2CH3, and ethanol CH2CH2OH. The invention also discloses a preparation method of the surfactant: it is prepared by a one-pot method. First, rosin and polyethylene glycol are esterified to form rosin polyethylene glycol monoester, and the hydroxyl group in the polyethylene glycol is treated with epichlorohydrin ether. The epoxy group is quaternized with the tertiary amine hydrochloride to obtain a rosin ester alcohol ether quaternary ammonium salt type surfactant. The critical micelle concentration of the prepared surfactant is 0.1-0.3mmol / L; the surface tension range is 37-39.5mN / m. The molecule contains both non-ionic and cationic functional groups, and is a new type of functional green surfactant.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Application of terpenoid coumarins in the treatment of gastric cancer

The invention relates to the application of a class of drugs with anti-gastric cancer effect. The drug is a monomer or composition of six terpenoid coumarin compounds obtained by chemical synthesis. Six monomeric compounds were obtained by various chemical reactions and separation and purification methods, and their chemical structures were identified by modern spectral techniques, and finally determined to be 4‑methyl‑8‑nitro‑Z‑hesperidolide (1) , 4‑Methyl‑5‑Hydroxy‑Z‑hesperidolide (2), 4‑methyl‑5‑O‑neroli‑Z‑hesperidolide (3), 4‑hydroxy‑5 ‑Methyl‑Z‑hesperidolide (4), 4‑hydroxy‑5‑methyl‑8‑hesperidyl‑Z‑hesperidolide (5), 4‑hydroxy‑5‑methyl‑ 6‑hesperidyl‑Z‑hesperidolide (6). Experimental studies have found that compounds 1-6 have better anti-proliferation effects on gastric cancer cells and higher selectivity.
Owner:INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI

Colophony/fatty acid sealing end non-ionic surface active agent and preparation method thereof

The invention discloses a rosin / fatty acid-capped nonionic surfactant and a preparation method thereof, wherein the rosin is a monocarboxylic acid containing a tricyclic diterpene structure such as ordinary rosin, disproportionated rosin or hydrogenated rosin, and the fatty acid is stearic acid or palmitic acid A monocarboxylic acid with a linear structure such as acid or oleic acid. The invention also discloses the preparation method of the surfactant: adopting a one-pot method for preparation, first esterifying fatty acid with polyethylene glycol to form fatty acid polyethylene glycol monoester, and then reacting fatty acid polyethylene glycol monoester with rosin to form rosin Polyethylene glycol fatty acid esters. The critical micelle concentration of the prepared surfactant is 0.01-0.1mmol / L; the range of surface tension is 40.7-54.8mN / m. The product not only has the high activity of linear surfactants, but also has the high spreading performance of rosin surfactants. It is a new type of functional green surfactant.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

A kind of spiro indolinone compound and its preparation method and application

ActiveCN109666031BInhibit virus activityUnique chemical structureOrganic chemistryDisinfectantsTobacco mosaic virusSpirobenzofuran
The invention belongs to the technical field of pesticides, and particularly relates to a spiro indolinone compound, and a preparation method and application thereof. According to the preparation method, a dispiro[benzofuranone-2,3'- pyrrolidone-2',3''-indolinone] compound is obtained by dissolving an N-substituted indigo derivative, alpha-amino acid and an aurone derivative in an organic solventaccording to a certain proportion in a one-pot synthesizing mode, removing the organic solvent after a TLC detection reaction is ended and recrystallizing; and the preparation method is simple. The dispiro[benzofuranone-2,3'- pyrrolidone-2',3''-indolinone] compound disclosed by the invention shows good activity to plant virus, and particularly has a very good prevention and treatment effect on preventing and treating tobacco mosaic virus.
Owner:JIANGSU UNIV
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