122 results about "Indene" patented technology

Provided is an arylalkyl-modified indene composition comprising a plurality of compounds, each of the compounds having one or more arylalkyl groups on an indene ring and differing from the others in the number of arylalkyl groups in one molecule. The content of the compound or compounds having a single arylalkyl group in one molecule is 1% or less in the composition at the percentage calculated on the basis of the area ratio in a GPC chart. At least one of the arylalkyl groups present in the composition is an arylalkyl group having a polymerizable unsaturated bond-containing group, while at least one of the arylalkyl groups present in the composition is an arylalkyl group having no polymerizable unsaturated bond-containing group.

Provided is an arylalkyl-modified indene composition that contains a plurality of types of compounds having an arylalkyl group on an indene ring, the compounds having different numbers of arylalkyl groups in one molecule, wherein: the content of a compound in which the number of arylalkyl groups in one molecule is 1 is 1% or less as calculated from the area ratio of the GPC chart; at least one of the arylalkyl groups present in the composition has a polymerizable unsaturated bond-containing group; and at least one of the arylalkyl groups present in the composition does not have a polymerizable unsaturated bond-containing group.

This method for producing an aryl-alkylated indene composition involves: adding an arylalkyl group having a polymerizable unsaturated bond-containing group to an indene compound; and adding an arylalkyl group having no polymerizable unsaturated bond-containing group to the indene compound to which the arylalkyl group having a polymerizable unsaturated bond-containing group is added.

The present invention relates to an indene derivative of formula D as specified in claim 1, to a liquid crystal medium comprising a compound of formula D and to high- frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.

The invention discloses a preparation method of bio-based material modified coumarone resin, an obtained product and application. The preparation method comprises the following steps: mixing a mixture containing polymerizable components indene and coumarone, styrene or a derivative thereof and a catalyst; then dropwise adding a mixture containing polymerizable components indene and coumarone and an organic solvent solution of a bio-based material to carry out polymerization reaction; and adding a quenching agent after the reaction, and performing post-treatment to obtain a final product. According to the invention, a bio-based material is adopted as a raw material, and the raw material is derived from natural plants and has the characteristics of environmental friendliness, degradability and the like, so that the cyclic utilization of resources is realized, and the generation of wastes is reduced. The bio-based modified coumarone resin is high in hydroxyl content and narrow in molecular weight distribution, the compatibility of the coumarone resin and polar resin is improved, the use performance and the application range of the coumarone resin are improved, and the bio-based modified coumarone resin has good application prospects in the fields of adhesives, rubber, coatings, ink and the like, and is particularly suitable for tire tread rubber.

Provided are a compound having a 2,3-dihydro-1H-indene or 2,3-dihydrobenzofuran moiety or pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the same and a use thereof, where the compound having a 2,3-dihydro-1H-indene or 2,3-dihydrobenzofuran moiety or pharmaceutically acceptable salt thereof has an inhibitory activity against glucosylceramide synthase (GCS), and therefore can be usefully applied for preventing or treating various diseases associated with GCS, such as Gaucher disease, Fabry disease, Tay-Sachs disease, Parkinson's disease, etc.

The application discloses a pinacine alkyl tetrahydrocarbazole fluorescent probe capable of detecting cell lysosome polarity and a preparation method and application thereof. 9-(3-(dimethylamino)propyl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-2,4-bridged methylene carbazole-6-formaldehyde is used as raw material, and condensation reaction is carried out with 1,3-indan dione to obtain compound 2-(2-(9-(3-(dimethylamino)propyl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-2,4-bridged methylene carbazole-6-yl)vinyl)-1-indene-1,3(2H)-dione (TC-AP-ID), and the probe can specifically detect the polarity of cell lysosomes. In a mixed system of 1,4-dioxane and water, with the increase of the polarity of the system, the fluorescence color of the probe gradually changes from orange to red, and the fluorescence intensity significantly decreases. The probe has the advantages of simple synthesis, good selectivity, high sensitivity, good biocompatibility, low toxicity and the like, can be applied to targeted detection of the polarity of cell lysosomes, and has a good application prospect.

The present invention provides a polymer composition comprising a polymer that comprises a unit (a) derived from alpha-methyl styrene-based monomers and a unit (b) derived from phenol-based monomers, wherein the content of an indene-based compound derived from two alpha-methyl styrene-based monomers is 5 wt % or less relative to the total weight of the polymer composition, and the content of an indene-based compound derived from three alpha-methyl styrene-based monomers is 0.1 wt % or less relative to the total weight of the polymer composition. A coating film manufactured from the coating composition comprising the polymer composition may have excellent bending resistance, impact resistance, and chemical resistance.

The invention belongs to the technical field of organic synthesis, and particularly relates to a 3-fluoroisoquinoline-4-alcohol compound and a preparation method and application thereof.The preparation method comprises the steps that substituted 2-azido-2-fluoro-2, 3-dihydro-1H-indene-1-ketone reacts with a solvent; adding an extracting agent for extraction, taking an organic phase, drying, filtering and concentrating to obtain a crude product; and purifying to obtain the 3-fluoroisoquinoline-4-alcohol compound. The solvent is prepared from dimethyl sulfoxide, N, N-dimethyl formamide, acetonitrile, isopropanol, tetrahydrofuran, 1, 4-dioxane, dichloromethane and chloroform. Compared with the prior art, the invention solves the problems that the synthesis of isoquinoline compounds in the prior art needs multi-step reaction, the reaction conditions are harsh, and the tolerance of functional groups is poor. According to the scheme, the 3-fluoroisoquinoline-4-alcohol compound is obtained through one-step chemical reaction, and the method has the advantages that raw materials are simple and easy to obtain, the substrate range is wide, the reaction is mild, the yield is high and the like.

The invention provides an asymmetric synthesis method of (R)-5-halo-2, 3-dihydro-1H-indene-2-carboxylic acid, and belongs to the technical field of medicine and organic synthesis.

Disclosed herein are synthetic methods for increasing the solubility of metallocenes, such as metallocenes containing perfluorobenzyl (indene) groups. These methods can include alkylating a perfluoroaromatic ring of a metallocene precursor using a lithium alkylate reagent in a one-pot reaction. In addition, these processes may be employed without changing reaction equipment or conditions, without separating new intermediates, and at the same time, generally retaining the desired catalyst characteristics.

The invention provides a tetravinyl benzyl indene derivative, a preparation method of the tetravinyl benzyl indene derivative, tetravinyl benzyl indene derivative thermosetting hydrocarbon resin and application of the tetravinyl benzyl indene derivative thermosetting hydrocarbon resin, and relates to the technical field of thermosetting resin. The tetravinyl benzyl indene derivative provided by the invention contains four vinyl groups, the crosslinking density of the thermosetting hydrocarbon resin is high, the dielectric loss tangent and dielectric constant of the tetravinyl benzyl indene derivative thermosetting hydrocarbon resin are remarkably reduced, and the heat resistance of the tetravinyl benzyl indene derivative thermosetting hydrocarbon resin is remarkably improved. Compared with trivinyl benzyl indene hydrocarbon resin and 1, 2-bis (4-vinylphenyl) ethane hydrocarbon resin, the tetravinyl benzyl indene derivative thermosetting hydrocarbon resin provided by the invention has the advantages of lower dielectric loss tangent, higher glass transition temperature, higher thermal stability, higher thermal stability and higher thermal stability. The method has a good application prospect in preparation of high-frequency and high-speed resin, bonding sheets, metal foil-coated plates, insulating substrates, resin-coated metal foils, insulating films, circuit substrates or electronic devices.

The present disclosure relates to a composition comprising: (a) a cationic polymerization initiator; and (b) an indene based or cyclopentadiene based resin; wherein the cationic polymerization initiator is selected from the group consisting of (i) an aromatic sulfonium salt-based cationic polymerization initiator; (ii) a phosphonium salt-based cationic polymerization initiator; (iii) a quaternary ammonium salt-based cationic polymerization initiator; (iv) an aluminum complex-based cationic polymerization initiator; (v) an aromatic iodonium salt-based cationic polymerization initiator; (vi) an aromatic diazonium salt-based cationic polymerization initiator; (vii) a pyridinium-based cationic polymerization initiator and (viii) a mixture thereof. Also described are varnishes and coatings formed from said composition.

The application discloses a method for industrial production of sulindac. The method comprises the following steps: condensation reaction of compound 1 (5-fluoro-2-1-(4-methylthio benzyl) indene) and glyoxylic acid under catalysis of an organic base (benzyl trimethyl ammonium hydroxide) to generate compound 2, isomerization reaction of the compound 2 under hydrobromic acid-acetic acid solution to generate compound 3, which greatly improves reaction conversion rate and yield, reduces three waste problems, and finally obtains compound 4 (sulindac crude product) through oxidation of the obtained compound 3 by hydrogen peroxide, and high-purity sulindac is obtained through recrystallization of the crude product by isopropyl alcohol. The raw materials and reagents used in the preparation process of the sulindac are relatively cheap and low in cost, the whole preparation process is mild in reaction condition, simple and safe in operation, and convenient for industrial production.

The invention relates to the technical field of structural adhesives, in particular to an epoxy composition capable of being used for bonding a camera module support and a preparation method of the epoxy composition, and the epoxy composition comprises the following components in parts by weight: 7-10 parts of epoxy resin; 20-25 parts of flexible epoxy resin; 5-10 parts of a core-shell epoxy resin toughening agent; 20-25 parts of a compound filler; 30 to 31 parts of organic hydrazide; and 8-9 parts of a modified amine adduct. The flexible epoxy resin has at least one structural characteristic of a long-chain polyether structure and an indene structure. The compound filler comprises calcium carbonate and silicon dioxide. The epoxy composition capable of being used for bonding the camera module support has the advantages of low precipitation, low curing shrinkage, high bonding strength, low modulus and excellent falling resistance, the reliability of the camera module support structure can be remarkably improved, and the epoxy composition is suitable for application environments of various miniature high-performance camera modules.

The application relates to a rubber ring for sealing a pump truck piston and a preparation method thereof, and belongs to the technical field of rubber sealing rings. The rubber ring is divided into an inner ring and an outer ring, the outer ring wraps the inner ring, and the preparation raw materials of the outer ring include 62-75 parts of polyurethane particles, 5-10 parts of natural rubber, 2-5 parts of coumarone-indene resin, 7-9 parts of naphthenic oil and 4-12 parts of graphite; the preparation raw materials of the inner ring include 86-95 parts of polyurethane particles, 1-3 parts of tetrafluoroethylene powder and 5-10 parts of elastic microspheres. The rubber ring prepared by adopting the double-layer functional partition design of the outer ring wrapping the inner ring has good support and high-elasticity sealing performance. The inner ring adopts polyurethane+ tetrafluoroethylene powder+ elastic microspheres as a core support layer, relies on the high strength and high tear resistance of polyurethane itself; the outer ring adopts polyurethane+ natural rubber+ graphite-naphthenic oil paste+ coumarone-indene resin as a functional action layer, can be closely attached to a sealing surface and reduce gaps.

The application discloses a method for preparing polyethylene wax by using a carborane bridged rare earth metallocene catalyst, and simultaneously preparing a carborane bridged indenyl rare earth metallocene compound as a main catalyst, loading the prepared main catalyst and a cocatalyst on a magnetic mesoporous Fe3O4@Al2O3 core-shell nanoparticle carrier to obtain a supported rare earth metallocene catalyst; the main catalyst of the application is a carborane bridged indenyl rare earth metallocene compound with a structure shown in formula (I), wherein a bridging group adopts a closed carborane (closed-1,2-dicarbadodecaborane), and the cage-like three-dimensional structure has super-high thermal stability and chemical inertness and does not degrade or rearrange in a high-temperature molten state of 130-200 DEG C. Large-volume substituents such as methyl, tert-butyl, phenyl or 4-tert-butylphenyl are introduced on the indene ring to provide sufficient steric protection and further inhibit chain transfer and side reactions at high temperatures.

The invention provides a newly developed, inexpensive, and bench-stable Cobalt (II)-complexes encompassing phosphine-free N,N-bidentate ligand system. Particularly, the present invention utilizes Co(II)-complexes as catalyzing system for the sole purpose of studying the C-alkylation reaction through borrowing hydrogen strategy. The present invention also provides a catalytic methodology for selective alkylation, alkenylation of fluorene, and inactivated bulky indene utilizing alcohol under mild and benign conditions. In the present invention, fluorene and indene are alkylated using a range of substrates as an alkylating agent, such as primary and secondary aromatic, heteroaromatic, and aliphatic alcohols. The present invention indicates a sophisticated catalytic process with yields that range from high to exceptional yields and excellent regioselectivity of the C3-alkylated indenes.

The invention discloses a composite film-forming agent as well as a preparation method and application thereof, and aims to provide a composite film-forming agent which can remarkably improve the fitting degree and tensile property of base makeup on the skin surface, enhance the glossiness of the makeup surface, improve the hydration degree of the skin, strengthen the moisturizing effect and form a layer of oleophylic makeup-holding film and a moisturizing film with enhanced hydrophilic capacity. Therefore, a dual film forming effect is achieved; according to the technical scheme, the cleaning agent comprises 4-14% of isododecane; the invention relates to a silicone sealant which is prepared from the following components in percentage by weight: 5 to 40 percent of trimethylsiloxane silicate, 5 to 40 percent of hydrogenated (styrene / methyl styrene) indene copolymer, 30 to 40 percent of cyclopentasiloxane (and) PEG / PPG-18 / 18 polydimethylsiloxane, 0 to 12 percent of polyvinyl pyrrolidone, 0 to 1 percent of polyquaternium-51 solution and 10 percent of water, wherein the sum of the components is 100 percent. The invention belongs to the technical field of cosmetics.

Rubber composition for tires, the rubber composition comprising: 100 parts by mass of a diene rubber containing a styrene-butadiene copolymer rubber having a styrene content of 30% by mass or more; 50 to 200 parts by mass of carbon black having a nitrogen adsorption surface area N2SA of 100 to 500 m2 / g and N2SA / IA, which is a ratio of the nitrogen adsorption surface area N2SA (unit: m2 / g) to an iodine adsorption number IA (unit: mg / g), of 0.90 to 1.03; 5 to 50 parts by mass of a styrolated phenol compound represented by the structural formula (1); and 20 to 90 parts by mass of a sticky resin; wherein a mixed quantity of the styrofoamed phenol compound represents 15% by mass or more based on a quantity of the sticky resin: wherein n is 2 or 3;wherein the sticky resin is one or more types selected from the group consisting of a C9 petroleum resin, a phenolic resin, a coumaron indene resin, a terpene resin, a styrene resin, an acrylic resin, a rosin resin and a dicyclopentadiene resin.

This invention provides a method for preparing phenyl-substituted 2-methyl-1H-indene derivatives via Stille coupling reaction, comprising: reacting brominated 2-methyl-1H-indene, trialkylphenyltin, palladium catalyst, and additives in an organic solvent; and after post-treatment following reaction to obtain the phenyl-substituted 2-methyl-1H-indene derivatives; wherein the trialkylphenyltin is at least one of trimethylphenyltin and tributylphenyltin; the palladium catalyst is at least one of Pd(PPh3)4, Pd2(dba)3, and Pd(dba)2; the additive is at least one of lithium chloride, cesium fluoride, and potassium fluoride; and the organic solvent is at least one of DMF, 1,4-dioxane, and NMP. This invention uses brominated 2-methyl-1H-indene and trialkylphenyltin as raw materials, and prepares the target product by reaction in an organic solvent in the presence of a palladium catalyst and additives. It exhibits good substrate adaptability and is simple to operate.

Provided is a curable resin material which contains: a resin (A) containing an indene ring, a vinylbenzyl group, and an arylalkyl group other than the vinylbenzyl group; and a phosphorus atom-containing compound (B).

Disclosed herein is a PET tracer compound (S)-1-(2-(6-[18F]fluoropyridin-3-yl)-4-(trifluoromethyl)phenyl)-N-(pyrimidin-2-yl)-2,3-dihydro-1H-indene-5-sulfonamide and salts thereof, and uses of the same as imaging agents. Also disclosed are precursor compounds, such as (S)-1-(2-(6-nitropyridin-3-yl)-4-(trifluoromethyl)phenyl)-N-(pyrimidin-2-yl)-2,3-dihydro-1H-indene-5-sulfonamide, and salts thereof. Also disclosed are kits comprising the same.

The invention discloses a crystallization purification method of indene in C9 petroleum resin, which comprises the following steps: S1, pretreating the C9 petroleum resin to obtain concentrated indene; s2, mixing the concentrated indene with a solvent I, performing primary cooling crystallization, and filtering after heat preservation to obtain crystals and filtrate; s3, mixing the crystals with a solvent II, carrying out secondary cooling crystallization, carrying out heat preservation, and filtering to obtain a filter cake; and S4, dissolving the filter cake, and carrying out negative pressure distillation to remove the solvent so as to obtain indene. According to the method, low-temperature crystallization is adopted, target substances can be selectively separated out, impurities are effectively removed, and a C9 petroleum resin mixture with large solubility difference is separated. And moreover, the crystals cannot be caked or caked during precipitation, the dispersion difficulty is low, filtration is easy, and the process difficulty is reduced.

The invention relates to the technical field of frame sealing adhesive tapes, in particular to a screen frame sealing adhesive tape and a preparation method thereof.The screen frame sealing adhesive tape sequentially comprises a PET release layer, a PU foam layer and a TPU layer, and every two adjacent layers are bonded through a specific acrylic acid adhesive layer. The acrylic acid adhesive layer is formed by compounding methyl methacrylate, triallyl phosphate, 2-ethylhexyl acrylate, methacryloyloxyethyl phosphate, an initiator, dimethyl diethoxy silane, a gradient particle size nano filler, coumarone indene resin, a cross-linking agent, a toughening agent and a solvent. According to the formula, a compact three-dimensional network structure is formed, so that an adhesive layer is endowed with excellent high-temperature cohesion, flexibility and bonding strength, thermal oxidative degradation can be effectively inhibited, invasion of water vapor and dust is blocked, and cracking of the adhesive layer and loosening of parts are avoided. The PU foam provides buffering and damping, the TPU layer improves weather resistance and aging resistance, and the PU foam, the TPU layer and the PU foam synergistically construct a dual-protection system, so that the adhesive tape is still stably bonded at a high temperature for a long time, and the connecting life of a frame of display equipment is prolonged.

The application provides a metallocene catalyst composition for synthesizing low-viscosity poly-alpha-olefin. The catalyst composition is composed of quinoline-indene metallocene as a main catalyst and an organic boron reagent or an alkyl aluminum oxane reagent as a cocatalyst and application thereof. The metallocene catalyst composition claimed by the application has the advantages of low dimer content in the product, high yield of lubricating oil component and overall yield when synthesizing poly-alpha-olefin; the synthesized low-viscosity lubricating oil base oil component has excellent viscosity-temperature performance and excellent low-temperature fluidity.

This invention discloses a method for preparing sulindac. The method involves first performing an Arbuzov reaction and a Wittig-Horner reaction sequentially to obtain 6-fluoro-3-(p-methylthiobenzyl)-2-methyl-1H-indene. 6-fluoro-3-(p-methylthiobenzyl)-2-methyl-1H-indene undergoes a condensation dehydration reaction with glyoxylic acid, followed by double bond rearrangement under acidic conditions to obtain (Z)-5-fluoro-2-methyl-1-(p-methylthiobenzyl)-1H-indene-3-acetic acid. Finally, it undergoes a single oxidation reaction with an oxidant to obtain sulindac. The raw materials and excipients used in this invention are readily available, and the entire reaction route is short, the reaction conditions are mild, the operation is safe and simple, the yield is high, the purity is high, the production cost is low, and the emissions of waste are minimal, conforming to green industrial production standards. The total yield of the obtained sulindac product is over 75%, which is conducive to industrial production.

This invention discloses a method for preparing high-density coal-based jet fuel. The specific steps are as follows: First, indene and a phenol-containing raw material react under the catalysis of an acidic catalyst to generate a compound with a tricyclic structure; second, the compound with the tricyclic structure is hydrogenated in a hydrogenation reactor or fixed bed under the action of a metal catalyst to generate high-density coal-based jet fuel. The phenol-containing raw material 2 is one of phenol, o-methylphenol, p-methylphenol, m-methylphenol, phenol oil, or crude phenol. This invention, through a two-step method, can completely achieve the high-yield preparation of high-density coal-based jet fuel from indene and phenol-containing raw materials extracted from high-temperature coal tar components. The fuel has a density greater than 0.90 g / mL and is a high-performance aviation kerosene alkane compound. The entire route uses coal tar components (crude phenol / phenol oil, etc.) as raw materials, making it a route with widely available and low-cost raw materials, more conducive to industrial production.

The application provides a non-fused electron acceptor material and a preparation method thereof, and a structural formula of the non-fused electron acceptor material is shown in general formula I; wherein, a core group comprises a benzotri furan unit, end groups comprise halogen-substituted 3-(dicyanomethylene) indene-1-ketone units, and a pi bridge between the end groups and the core group comprises an alkyl-substituted five-membered heterocyclic unit; (I); in formula I, X1 and X2 are each independently selected from fluorine, chlorine or bromine; Y is selected from oxygen, sulfur or selenium; R is selected from C2~C 400 A straight-chain or branched alkyl group. The material realizes conformational locking without an alkoxy substitution by utilizing an oxygen atom effect, stably maintains a low HOMO energy level while ensuring molecular planarity, and thus significantly improves compatibility with various donor materials.