30 results about "Amidogen" patented technology

The application discloses a kind of high selectivity nanofiltration composite membrane and preparation method thereof, belong to nanofiltration membrane related technical field.The application is in the form of in-situ polymerization with anhydride, ester group, amide group on membrane surface, the degree of hydrolysis of polyamide membrane is controlled by the cleaning of post-processing solution, to control the charge density of membrane surface, to improve or reduce the permeability of monovalent ion;By controlling the ratio of trimesoyl chloride and diacyl chloride monomer, the size of pore structure can be adjusted, further improving the permeability of monovalent salt;By adjusting the amount of hydrophilic pore-forming agent to improve the hydrophilic performance of ultrafiltration base film, the flux and monovalent salt permeability of nanofiltration composite membrane are improved.The high selectivity nanofiltration composite membrane prepared by the application has excellent divalent salt ion removal rate, lower monovalent salt removal rate, and higher water flux, suitable for industrial production.

The invention discloses a method for preparing a chiral benzhydrol compound through asymmetric hydrogenation of o-amido benzophenone under catalysis of rhodium. The chiral rhodium catalyst is generated in situ from a metal rhodium salt and a chiral phosphine-phosphoramidite ligand in various solvents. Compared with other methods for synthesizing chiral benzhydrol, the method has the characteristics of cheap catalyst, easiness in preparation of chiral ligand, mild reaction conditions, simplicity and convenience in operation, high yield, high enantioselectivity and the like, and can be applied to large-scale preparation of chiral benzhydrol compounds. The method is also suitable for efficient preparation of the rice plant growth regulation inhibitor (S)-Inabenide, the yield can reach 92%, the enantioselectivity can reach 96%, and the method has good industrial application prospects.

The present invention relates to a process for stereoselective polyene cyclization to produce tricyclic compounds of formula (I), wherein X is CH2or C=O, comprising reacting a compound of formula (II), wherein X is CH2or C=O and wherein the curved line indicates the E- or Z-configuration, in the presence of a catalytic amount of a Bronsted acid having an acidic sulfonamide moiety.(I)(II)

The application discloses a method for simultaneously detecting 18 kinds of amino acids in Daqu based on high-resolution liquid chromatography-mass spectrometry, and belongs to the technical field of liquor detection. Chromatographic conditions of the method include that an ethylene bridge hybrid particle with surface-bonded amide groups is used as a filler, ammonium acetate-formic acid aqueous solution is used as mobile phase A, and acetonitrile is used as mobile phase B for gradient elution; mass spectrometry conditions include that an H-ESI ion source is used, the spray voltage in the positive ion mode is 3000-4000 V, and the spray voltage in the negative ion mode is 2000-3000 V; qualitative analysis is performed according to mass-to-charge ratios of the 18 kinds of amino acids, and quantitative analysis is performed by using a standard curve method. The method has the characteristics of simple pretreatment operation, easy-to-obtain reagents, high extraction efficiency and good stability, can realize synchronous and accurate qualitative and quantitative analysis of the 18 kinds of amino acids, and provides reliable data support for flavor substance research of Daqu.

A pure composition comprises a monoalkyltin trialkoxide compound represented by the chemical formula RSn(OR′)3 or a monoalkyl tin triamide compound represented by the chemical formula RSn(NR′2)3 and no more than 4 mole % dialkyltin compounds relative to the total tin amount, where R is a hydrocarbyl group with 1-31 carbon atoms, and wherein R′ is a hydrocarbyl group with 1-10 carbon atoms. Methods are described for the formation of the pure compositions. A solid composition comprises a monoalkyl triamido tin compound represented by the chemical formula RSn—(NR′COR″)3, where R is a hydrocarbyl group with 1-31 carbon atoms, and where R′ and R″ are independently a hydrocarbyl group with 1-10 carbon atoms. The compositions are suitable for the formation of resist compositions suitable for EUV patterning in which the compositions have a high EUV absorption.

The application discloses a pyrazole hexacyclic-5-formamide compound containing an aromatic (ethyl) amide group and a preparation and application thereof. A structural general formula of the compound is shown as formula I. The compound is prepared through an amide condensation reaction, and the preparation method is simple. The pyrazole hexacyclic-5-formamide compound containing the aromatic (ethyl) amide group has an obvious inhibiting effect on growth and development of agricultural pests and growth and development of monocotyledonous or dicotyledonous plants. After application, the pests show symptoms of individual atrophy, skin wrinkling, abnormal molting of insect body deformity and even death, and the plants show that the growth of roots and stems is inhibited. The formula I compound can be applied in agriculture as an insecticide and / or herbicide.

The application discloses a cannabidiol derivative and application thereof, and belongs to the technical field of medicinal chemistry. The structural general formula of the cannabidiol derivative is shown as formula (I): (I) R1 is selected from one of hydrogen, chlorine, bromine, a hydroxyl group, a cyano group, an acetoxy group, an acryloyloxy group, a benzoyl group, an acetamide group, an acrylamide group, a propiolamide group, an ethyl thiourea group, a 3-chloro-2,2-dimethylpropionyl group, a 2-ethylsulfonamide acetyl group, a 2-ethylsulfonamide-N-(2-amino-2-oxoethyl) acetyl group, a methylsulfonyl group, an ethylsulfonyl group, a vinylsulfonyl group, an alkyne propylsulfonyl group, a phenylsulfonyl group and a styrylsulfonyl group; and R2 is selected from one of C2-C5 alkyl groups. The cannabidiol derivative disclosed by the application has significantly improved anti-neuroinflammatory activity, significantly reduced cytotoxicity, and a generally improved treatment index of more than 10 times, or even more than 260 times, compared with cannabidiol.

This disclosure includes crystalline solids of 3-palmitoyl-amido-1,2-propanediol and 3-palmitoyl-amido-2-hydroxy-1-dimethoxytriphenylmethyl ether-propane. Methods for preparing crystalline solids of 3-palmitoyl-amido-1,2-propanediol and single crystals of 3-palmitoyl-amido-2-hydroxy-1-dimethoxytriphenylmethyl ether-propane are also provided. A method for preparing 3-palmitoyl-amido-2-hydroxy-1-dimethoxytriphenylmethyl ether-propane from crystalline solids of 3-palmitoyl-amido-1,2-propanediol is also described.

The application belongs to the technical field of mineral processing, and particularly relates to an amido benzhydroxamic acid collector, a preparation method and application thereof, and a method for flotation separation of fluorcarbonate cerium ore and calcium-containing gangue minerals. The amido benzhydroxamic acid collector has the following structure:. The amido benzhydroxamic acid collector in the application can realize high-selectivity separation of fluorcarbonate cerium ore at normal temperature and in a wide pH range.

A peroxide stabilizer for use in whitening compositions may comprise a primary amide stabilizer, such as hydroxyethyl urea, in solution with hydrogen peroxide. In comparison with carbamide, while having a lesser peroxide sequestration, hydroxyethyl urea is 2-3 times more soluble and therefore can provide a composition with greater stability while not sacrificing whitening power.

The present invention relates to a polymer dispersant for a non-aqueous solvent, containing a structural unit derived from a monomer represented by general formula (1) below and a structural unit derived from a monomer having a hydroxy group: In general formula (1), R1, R2, and R3 are each selected from a hydrogen element or a methyl group, X1 represents an oxygen element, an ester group, an amide group, or —CH2O—, Y1 represents a repeating unit of an alkylene glycol having from 2 to 4 carbons, R4 represents a hydrogen element or an alkyl group having from 1 to 20 carbons, and n represents the number of repeating units of the alkylene glycol.

The application relates to the technical field of chromatography, in particular to an anion exchange chromatography membrane and a preparation method and application thereof, which comprises a porous carrier, the two sides of the porous carrier form a first surface and a second surface respectively, an amine polymer is attached to the surface and the pore wall of the porous carrier, the amine polymer contains an amide group and an anion exchange group, and the anion exchange group is a quaternary ammonium group; wherein in the nitrogen element of the first surface of the anion exchange chromatography membrane, the proportion of the nitrogen element from the amide group in the amine polymer is 55-85%, and the proportion of the nitrogen element from the quaternary ammonium group is 15-45%; and the crystallinity of the first surface of the anion exchange chromatography membrane is 10-30%. The group type proportion and the crystallinity of the anion exchange chromatography membrane are controlled, so that when the obtained chromatography membrane is applied to plasmid purification, the purity and the yield of the plasmid DNA of a target configuration are further improved.

This invention provides a ligand compound and chelate for targeting PSMA, and their applications. The structural formula of the compound is shown in Formula I-1, wherein X is -(CH2). m -CONH-CHR3(CH2) n -R4, R3 are selected from hydrogen, C1-C5 straight-chain or branched alkyl, C1-C5 straight-chain or branched alkoxy, C1-C5 straight-chain or branched alkylthio, halogen, cyano, nitro, hydroxy, carboxyl, sulfonic acid, phenyl, and amino-substituted C1-C5 straight-chain or branched alkyl; R4 is selected from optionally substituted C1-C5 straight-chain or branched alkyl, optionally substituted C1-C5 straight-chain or branched alkoxy, optionally substituted C1-C5 straight-chain or branched alkylthio, optionally substituted 6-14 aryl, optionally substituted 5-14 heteroaryl, as well as halogen, cyano, nitro, hydroxy, carboxyl, sulfonic acid, C1-C5 straight-chain or branched alkylamide and C1-C5 straight-chain or branched alkylsulfonamide; m is an integer from 2 to 4; n is an integer from 1 to 3; Z is a radioactive metal ion chelating group. The stability and safety of this PSMA-targeting ligand compound were significantly improved, and it exhibited superior tumor-suppressive effects.

This invention relates to the field of oil and gas field development, and discloses a composition with shear-thinning function, its preparation method, and its application in slickwater. The composition comprises: a polymer, a quaternary ammonium salt with fewer than 7 carbon atoms, and an organic acid salt containing C8-C20 alkyl groups; wherein the polymer's chemical structure includes amide groups, sulfonic acid groups, phosphonic acid groups, and polyoxyethylene ether polyoxypropylene groups, and the polymer has a viscosity-average molecular weight of 5-10 million g / mol; the mass ratio of the polymer, quaternary ammonium salt, and organic acid salt containing C8-C20 alkyl groups is 0.03-10:0.3-5:1. Slickwater prepared using this composition can achieve the effect of mitigating shear-thinning and can be applied in fields such as oilfield exploration and development.

An amide-containing aromatic diamine has the following structural formula: where Ar is a group with an aromatic ring structure. The preparation method includes the following steps: (1) mixing and reacting components including aromatic diamine, p-nitrobenzoic acid, alkyl phosphoric anhydride and polar aprotic organic solvent; (2) adding carboxylic acid and halogen-free quaternary ammonium salt to the product obtained in step (1) to obtain a mixed solution, which is placed in the cathode cell of an H-type electrolytic cell; the anode cell and the cathode cell are separated by a Nafion membrane; adding the same polar aprotic organic solvent and halogen-free organic electrolyte as the cathode cell to the anode cell of the H-type electrolytic cell, and adding a metal ion-free reducing agent; and conducting the reaction by electrolysis; (3) purifying the cathode reaction solution obtained in step (2) by post-treatment to obtain the amide-containing aromatic diamine. The yield, purity and whiteness of the amide-containing aromatic diamine are higher.

This invention discloses a zwitterionic gel for profile control, its raw material composition, and its preparation method. The raw material composition of the zwitterionic gel for profile control comprises, by weight: 10-30 parts acrylamide, 1-3 parts cationic monomer, 1-3 parts anionic monomer, 0.1-0.3 parts reinforcing agent, 0.2-0.5 parts pH adjuster, 0.02-0.05 parts chain transfer agent, 0.1-0.5 parts crosslinking agent, and 0.03-0.05 parts initiator; wherein the cationic monomer includes an organic quaternary ammonium salt containing an alkenyl group; the anionic monomer includes a compound containing an amide group, a sulfonic acid group, and an alkenyl group; the reinforcing agent includes an inorganic compound; and the crosslinking agent includes a compound containing two alkenyl groups and two phenyl groups, with the two alkenyl groups respectively linked to two phenyl groups. The zwitterionic gel for profile control of this invention possesses both high strength and high erosion resistance, exhibiting good sealing effect and sealing stability.

The present application belongs to the field of mineral processing engineering, and particularly relates to a preparation method of a ternary copolymer depressant for high-calcium fluorite flotation, which comprises synthesizing a ternary copolymer composed of acrylamide, 2-acrylamide-2-methylpropanesulfonic acid and methacryloyloxyethyl phosphonic acid in a molar ratio of (4-7):(2-4):(1-3) by a water solution radical polymerization method, and realizing efficient depression of calcite and barite by using the selective chelation of phosphonic acid groups to Ca2+ / Ba2+, the steric hindrance of sulfonic acid groups and the synergistic adsorption of amide groups, while protecting the floatability of fluorite. The depressant has low dosage, is non-phosphorus and non-toxic, has good biodegradability, and can significantly improve the fluorite concentrate grade and recovery rate under weak alkaline conditions.

This invention discloses a fluorite collector, its preparation method, and its application. The collector comprises 20-45 parts of an amide sulfonate and 10-20 parts of a low-carbon chain alcohol compound. The amide sulfonate has the general structural formula R1-C(O)N(R2)CH2CH2-SO3Na, where R1 is a hydrocarbon chain containing 13-17 carbon atoms. The preparation method involves mixing the amide sulfonate and the low-carbon chain alcohol compound to obtain a mixture, and then shearing and mixing the mixture until homogeneous. This invention achieves efficient, stable, and low-consumption fluorite flotation separation through the design and formulation of novel surfactants.

A resist composition which achieves high sensitivity and further improves resolution when forming a resist pattern, a resist pattern formation method using the resist composition, and a compound useful as a raw material of a base material component used in the resist composition. The resist composition includes a resin component that has a constitutional unit represented by General Formula (a0-0) in which Ra01 represents an acid dissociable group represented by Formula (a0-ra), R01 represents an alkyl group having 1 to 5 carbon atoms, a halogenated alkyl group having 1 to 5 carbon atoms, or a hydrogen atom, and Ya01 represents a divalent linking group or a single bond. In Formula (a0-ra), R02 and R03 form a chain-like hydrocarbon group or a cyclic group and have a carbon-carbon unsaturated bond. A group having 10 or less carbon atoms, which is a hydroxy group, a carboxy group, a sulfo group, an amino group, a phosphoric acid group, an amide group, an ether group, an imino group, or a thioether group is bonded to at least one of carbon atoms constituting the carbon-carbon unsaturated bond

The application belongs to the field of catalytic chemistry, and particularly relates to a 1,10-phenanthroline ligand derivative, and preparation and application thereof. The application provides a derivative of a 1,10-phenanthroline ligand as shown in formula (I) with an amide group introduced at positions 2 and 9. The 1,10-phenanthroline ligand derivative with an amide group introduced at positions 2 and 9 can enhance metal coordination ability, optimize chelation stability with metals, and can be used as a high-efficiency metal catalyst ligand to catalyze organic reactions. The 1,10-phenanthroline ligand derivative can form stable metal coordination with transition metals such as iron, cobalt and nickel, and can efficiently catalyze trifluoromethylation reaction, Ullmann type etherification reaction and polymeric ester polymerization in cooperation with copper and zirconium alkoxide.

A leachant / extractant for selective separation of a transition-metal element is provided, wherein the extractant includes a 7,7'-diamido-2,2'-diindolylmethane backbone and a plurality of aromatic pendant groups, wherein each aromatic pendant group of the plurality of aromatic pendant groups is covalently linked to the 7,7'-diamido-2,2'-diindolylmethane backbone through an amide bond. Also provided is a method of using such extractant for selective separation of a transition-metal element, wherein the method includes leaching the transition-metal element from a feedstock to produce a metallate of the transition-metal element, extracting the metallate using the extractant to form an extractant-metallate host-guest adduct, and recovering, using a stripping agent, the transition-metal element from the extractant-metallate host-guest adduct.

This invention discloses a method for preparing a multi-responsive self-healing gel, comprising the following steps: firstly, synthesizing 4-hydroxyazobenzene, the azobenzene crosslinking agent shown in formula (1), and the 3-acrylamidophenylboronic acid functional monomer; then, dissolving β-cyclodextrin and 3-acrylamidophenylboronic acid in an alkaline solution, sequentially adding the compound of formula (1) and the acrylamide monomer, and finally, performing free radical polymerization at room temperature under the action of an oxidation-reduction initiation system composed of ammonium persulfate and tetramethylethylenediamine to obtain the gel. The preparation conditions of this invention are mild and the operation is simple. The resulting gel can undergo reversible gel-sol phase transition under ultraviolet / visible light irradiation, pH changes, or temperature rises and falls, while exhibiting good self-healing properties, sensitive response, and good cycle stability. It has broad application prospects in the fields of drug controlled release, biosensing, and intelligent actuators.

This invention discloses an aqueous dispersant for water-based digital glaze ink and its preparation method. The raw material components of the aqueous dispersant, by weight, include: 35-40 parts of acrylic monomers, 25-35 parts of amide monomers, 30-35 parts of isoborneol methacrylate, 1-3 parts of initiator, 100-300 parts of an alcohol-water mixed solvent, and 0.5-1.5 parts of triethanolamine. This aqueous dispersant is copolymerized from the above ternary monomers. Specifically: the carboxyl groups of the acrylic monomers have a strong anchoring effect on the water-based digital glaze particles, accelerating grinding efficiency through electrostatic adsorption and chelation effects; the amide groups of the amide monomers form dense hydrogen bonds with water molecules, improving the compatibility of the dispersant in the aqueous system and avoiding uneven dispersion caused by hydrophobic stratification; the rigid isoborneol side chains of the isoborneol methacrylate form steric hindrance, effectively preventing particle collision and aggregation, thereby significantly improving the storage stability of the glaze.

The invention discloses a preparation method of a benzothiazole ether compound, which comprises the following steps: mixing a 2-(methylsulfonyl) benzothiazole compound with an alcohol compound or a phenolic compound in an organic solvent, and reacting under the catalytic action of potassium phosphate to obtain the benzothiazole ether compound. According to the invention, potassium phosphate is taken as a catalyst, the 2-(methylsulfonyl) benzothiazole compound and an alcohol compound or a phenolic compound are taken as substrates for reaction to synthesize the benzothiazole ether compound, the reaction condition is mild, the yield is high, the selectivity is good, the benzothiazole ether compound has good compatibility with various functional groups, the materials are simple and easy to obtain, and the operation is convenient; meanwhile, reaction substrates can be expanded to wide substrates containing ester groups, amide groups and the like, and the method has practical application value.

A pure composition comprises a monoalkyltin trialkoxide compound represented by the chemical formula RSn(OR′)3 or a monoalkyl tin triamide compound represented by the chemical formula RSn(NR′2)3 and no more than 4 mole % dialkyltin compounds relative to the total tin amount, where R is a hydrocarbyl group with 1-31 carbon atoms, and wherein R′ is a hydrocarbyl group with 1-10 carbon atoms. Methods are described for the formation of the pure compositions. A solid composition comprises a monoalkyl triamido tin compound represented by the chemical formula RSn—(NR′COR″)3, where R is a hydrocarbyl group with 1-31 carbon atoms, and where R′ and R″ are independently a hydrocarbyl group with 1-10 carbon atoms. The compositions are suitable for the formation of resist compositions suitable for EUV patterning in which the compositions have a high EUV absorption.

This invention belongs to the field of organic synthesis chemistry, specifically relating to a fluoroalkylthio-acetal ketone and its application in the synthesis of fluoroalkylthiopyrazoles. The general formula of the fluoroalkylthio-acetal ketone compound is shown as (Ⅰ); wherein, R 1 Selected from acyl groups; R 2 Selected from one of ester, acyl, or amide groups; R f Selected from one of monofluoroalkyl or difluoroalkyl groups. The general formula II for fluoroalkylthiopyrazole compounds is shown: (II)R 1 Selected from either ester or cyano groups; R 2 Selected from alkyl or aryl; R 3 Selected from either aryl or hydrogen atoms; R f Selected from monofluoroalkyl groups. The compound shown in general formula II has certain inhibitory activity against the growth of human endometrial adenocarcinoma cells (HEC-1-B) and human fibrosarcoma cells (HT-1080).

The application relates to a binder and a preparation method thereof, a carbon-coated aluminum foil and a preparation method thereof, and relates to the technical field of battery binders. The binder comprises a polymer shown in formula (1). In formula (1), R1 and R3 are each independently selected from hydrogen or a methyl group, R2 is selected from a linear aliphatic hydrocarbon group with 1-10 methylene groups, R4 is selected from an amido group or a carboxyl group, R5 is selected from a cyano group or a phenyl group, R6 is selected from a linear aliphatic hydrocarbon group with 2-10 methylene groups or a phenyl group, and R7 is a group containing a methacrylate group. The binder can effectively wet the aluminum foil, has good adhesive force and conductivity, and is insoluble in NMP and electrolyte.

This article describes metal complexes and their preparation and use. In some forms, metal complexes contain C NHC ^C^C NHC (NHC=N-heterocyclic carbene) clamp ligands with a through-bonded donor-acceptor configuration. The donor (e.g., an amide group) is coordinated to a metal ion, while the acceptor (e.g., 2,4,6-triphenyl-1,3,5-triazine and its derivatives) is incorporated into the clamp ligand and located at the para position of the carbanion. In some forms, the incorporation of the acceptor (e.g., 2,4,6-triphenyl-1,3,5-triazine and its derivatives) can be applied to clamp ligands N^C^N and / or C^C^N, wherein in the metal complex, C... NHC ^C^C NHC ligand donor C NHC It can be replaced with a neutral N- donor and / or a carbanion. The design of the metal complexes disclosed herein can lead to improved photophysical properties, such as a shortened emission lifetime and / or an increased radiative decay rate constant, thereby improving their device performance in OLED devices.