33 results about "Cyclopentadienone" patented technology

An oligomer, uncured polymer or cured polymer comprising the reaction product of one or more polyfunctional compounds containing two or more cyclopentadienone groups and at least one polyfunctional compound containing two or more aromatic acetylene groups wherein at least some of the polyfunctional compounds contain three or more reactive groups. Such oligomers and uncured polymers may be cured to form cured polymers which are useful as dielectrics in the microelectronics industry, especially for dielectrics in integrated circuits.

The invention relates to a 1, 6, 7, 12-tetraphenyl perylene bisimide derivant and a preparation method thereof, belonging to the field of organic photoelectronic functional material preparation. The structural characteristic of the perylene bisimide derivant is that 1, 6, 7, 12-four harbor positions of 3, 4, 9, 10-perylene bisimide are connected with charge transport functional groups with different structure types and different conjugation degrees by phenyls. The derivant is synthesized by the following steps: firstly, a perylene bisimide core with terminal ethyne or halogen or other active groups at the periphery is synthesized by 1, 6, 7, 12-tetraphenyl perylene; and then the 1, 6, 7, 12-tetraphenyl perylene bisimide and cyclopentadienyl ketone with functional substitute group at periphery or arylamine and the like generate Diels-Alder cycloaddtion or C-N, C-C coupling reaction and the like, thus obtaining the target derivant. The compound has excellent thermal stability and morphologic stability and dissolvability; the opto-electronic property of the compound has obvious bathochromic shift compared with other perylene bisimide derivants; and the derivant can be widely applied in the fields of photoelectron and biology such as organic electroluminescence, solar cell, near-infrared fluorescence probe and the like.

The invention discloses a synthesis method of indenofluorene derivatives, isotruxene and mono-substituted isotruxene derivatives. The synthesis method of indenofluorene derivatives is characterized in that ester-group-containing compounds are formed through Diels-Alder reaction of methyl propiolate and indenocyclopentadienone, ethyl substituted indenofluorene derivatives are formed through hydrolysis, acid catalytic ring closing, carbonyl reduction and introduction of ethyl onto methylene, diketone compounds produced after ring closing react with lithium salt of 4, 4'-di-tert-butyl-2-brominated biphenyl, and then acidification and ring closing are conducted to obtain indenofluorene derivatives with spirofluorene. The synthesis method of isotruxene is characterized in that 1, 4-diphenyl-2, 3-di (carbalkoxy) fluorenone products are formed through the Diels-Alder reaction of indenocyclopentadienone and dimethyl acetylenedicarboxylate, isotruxene ketone is obtained through hydrolysis and acid catalytic ring closing and finally isotruxene is obtained; dibenzyl alcohol products are formed through the Diels-Alder reaction of 1, 4-butynediol and indenocyclopentadienone, and isotruxene is obtained through acetone protection, carbonyl reduction, acetone removal and polyphosphoric acid (PPA) ring closing; and oriented oxy substituted products, i.e. isotruxene ketone which is derived from isotruxene with methylene at a No.5 position being substituted, and corresponding diethyl substituted products are additionally obtained. The indenofluorene derivatives, the isotruxene and the mono-substituted isotruxene derivatives disclosed by the invention can be used in the field of organic electroluminescence and organic micro-molecule solar cells.

Certain polyarylene oligomers having improved solubility are useful in forming dielectric material layers in electronics applications.

The invention relates to thiophene and pyrazine derivatives and a preparation method thereof, belonging to the field of organic electroluminescent materials. The derivatives are prepared by forming a molecular luminous core by centrosymmetrically connecting thiophene and pyrazine with four benzene rings, connecting functional groups of different structures and different conjugated degrees with the periphery of the core so that the red fluorescent molecules have charge-transmitting capability and can be used as a main red luminous material in the field of organic electroluminescence. The synthesis method comprises the following steps of: using 2,5-dibromothiophene as a raw material; nitrifying, carrying out C-C coupling with bromobenzene boric acid; reducing nitro groups; synthesizing a thiophene and pyrazine core with four peripheral bromines periphery together with 4,4'-dibromo benzyl; and then, carrying out C-N, C-C coupling reactions with arylamine, and the like or introducing acetylene groups to the periphery of the core and carrying out Diels-Alder cycloaddition with cyclopentadiene ketene with functional substituted groups to prepare target derivatives. The derivatives have strong absorption capability in an ultraviolet-visible light region, the dilute solution thereof emits strong fluorescence, and luminous peaks are between 600nm and 650nm.

The invention discloses a 2,3,5,6,7,8-hexa-substituted imidazole[1,2-a] pyridine fluorescent material and a synthesis method thereof. The molecular structural formula is shown in the specification. The method comprises the following specific steps: dissolving a cyclopentadienone derivative, a 1,2-dicarbonyl compound and an ammonium salt in an anhydrous solvent, wherein the molar ratio of the cyclopentadienone derivative to the 1,2-dicarbonyl compound to ammonium salt is 1:(0.9-1.1):(4-10); heating to 100-160 DEG C to react for 2-6 hours, performing reduced pressure distillation after the reaction to remove the solvent, and purifying to obtain the solid, namely the fluorescent material 2,3,5,6,7,8-hexa-substituted imidazole[1,2-a] pyridine compound. In the method, the cyclopentadienone derivative and 1,2-dicarbonyl compound are utilized as raw materials and the inorganic ammonium salt is utilized as an ammonia source, thus the source range of the raw materials is wide, the raw materials are easily available, the operations are simple, a one-pot method is adopted for synthesis, the steps are short, the yield is high and the method can be used in mass production easily.

Gas sensors are provided. The gas sensors comprise: a substrate; a plurality of electrodes on the substrate; and a polymeric sensing layer on the substrate for adsorbing a gas-phase analyte. The adsorption of the analyte is effective to change a property of the gas sensor that results in a change in an output signal from the gas sensor. The polymeric sensing layer comprises a polymer chosen from substituted or unsubstituted polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising two or more cyclopentadienone groups, or a cured product of the reaction product. The gas sensors and methods of using such sensors find particular applicability in the sensing of gas-phase organic analytes.

Polyarylenes comprising as polymerized units a first monomer having two cyclopentadienone moieties and a second monomer having two or more alkyne moieties, wherein at least one alkyne moiety is directly bonded to a silicon atom are provided. Such polyarylenes are useful as dielectric materials in the manufacture of electronic devices.

Acoustic wave sensors comprise: a piezoelectric layer, first and second electrodes arranged with the piezoelectric layer in a piezoelectric transducer circuit; and a polymeric sensing layer for adsorbing a gas-phase analyte, the adsorption of which analyte causes a change in resonant frequency of the piezoelectric transducer circuit, wherein the polymeric sensing layer comprises: (a) a polymer chosen from substituted or unsubstituted: polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising a cyclopentadienone group; polyamides; polypyrazoles; or novolacs; or a cured product thereof; (b) a polymer chosen from substituted or unsubstituted: polyamic acids; or polyamic acid-polyimide copolymers; (c) a polymer formed from one or more monomers comprising a monomer comprising a polar group-substituted arylcyclobutene group, or a cured product thereof; or (d) a polymer comprising polymerized units of a monomer chosen from substituted or unsubstituted: maleimides; or norbomenes; or a cured product thereof. The acoustic wave sensors and methods of using such sensors find particular applicability in the sensing of gas-phase analytes.

The present invention generally relates to carbon monoxide releasing compounds and compositions, and their use as carbon monoxide prodrugs. The compounds disclosed herein contain a cyclopentadienone moiety, a non-reactive dienophile, and an enzyme-cleavable tethering moiety connecting the cyclopentadienone moiety to the non-reactive dienophile. Cleavage of the enzyme-cleavable tethering moiety results in conversion of the non-reactive dienophile to a reactive dienophile

The invention relates to a preparation method of a fulvestrant related substance E. The invention relates to a preparation method of a fulvestrant related substance E shown as a formula I (See the specification for reference), namely, 7-[9-(4, 4, 5, 5, 5-pentafluoropentylsulfinyl) nonyl] estra-1, 3, 5(10), 6-tetraene-3, 17 beta-diol. The fulvestrant related substance E is obtained by taking (7S, 8R, 9S, 13S, 14S, 17S)-3, 17-dihydroxy-13-methyl-7-(9-((4, 4, 5, 5, 5-pentafluoropentyl) sulfo) nonyl)-7, 8, 9, 11, 12, 13, 14, 15, 16, 17-decahydro-6H-cyclopentadiene-6-ketone as a starting material through the reaction steps of protection, reduction, oxidation, dehydration and deprotection. The method has the advantages of few side reactions, high product yield, good purity, reasonable process design, simple operation and low cost.

The invention relates to an acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin and a preparation method of the acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin, and relates to a resin and the preparation method of the resin. The allyl phenolic aldehyde resin is generated by the reaction of compounded phenolic resin and chloropropene; the resin generates Claisen rearrangement reaction under high temperature, and further generates allyl phenolic aldehyde resin; under the same temperature, acenaphthene type cyclopentadiene ketone and allyl resin are added to generate Diels-Alder reaction; finally, phenolic hydroxyl hydrogen in phenolic resin replaced by allyl of the acenaphthene type polyphenyl copolymerized allyl phenolic aldehyde active dilute resin is obtained; the prepared resin is relatively low in viscosity, and the resin can be used as the active dilute resin for reducing resin viscosity. Besides, an acenaphthene type polyphenyl condensed ring structure with big molecular radical group is introduced, and has Diel-Alder reaction with double keys in the allyl phenolic resin under a specific condition; multiple benzene ring groups are introduced, so that the compounded resin is possessed of high temperature resistance and thermal oxidization stability.

The invention discloses intrinsic black polyimide as well as a preparation method and application thereof. According to the intrinsic black polyimide, a diamine monomer and a tetracid dianhydride monomer which have large conjugation characteristics and contain a tetraphenyl cyclopentadienone structure are adopted as raw materials, polyamic acid is obtained through polymerization, and polyimide is obtained through imidization. The diamine monomer containing the tetraphenylcyclopentadienone structure and having the large conjugation characteristic has wide strong absorption in a visible light region, and when the diamine monomer is introduced into a polyimide molecular chain, polyimide can be endowed with excellent visible light absorption capacity, so that the intrinsic black characteristic is presented; such polyimides also have excellent solubility, heat resistance, electrical insulation properties and mechanical properties. The synthesis process is simple and is suitable for industrial production. The prepared intrinsic black polyimide has excellent visible light shielding performance, mechanical performance and electrical insulation performance, and can be widely applied to the fields of microelectronics, photoelectricity, military industry, aerospace and the like.

The invention discloses a method for preparing phenanthrene-type (polyphenyl) phenyl polyhedral polyvinylsilicone rubber and relates to a method for preparing silicone rubber. The method comprises that vinyl polyhedral oligomeric silsesquioxane and phenanthroline-type cyclopentadienone undergo a Diels-Alder reaction to produce phenanthrene-type (polyphenyl) phenyl polyhedral polyvinylsilicone oil, and the phenanthrene-type (polyphenyl) phenyl polyhedral polyvinylsilicone oil and silicone rubber undergo a reaction to produce the phenanthrene-type (polyphenyl) phenyl polyhedral polyvinylsilicone rubber. The phenanthrene-type (polyphenyl) phenyl polyhedral polyvinylsilicone rubber has a high conjugation degree condensed ring group and an inserted polyhedral oligomeric silsesquioxane inorganic framework structure and the two structures cooperate. The heat-resistant additive has the high conjugation degree condensed ring group (containing multiple benzene ring groups) and the inserted polyhedral oligomeric silsesquioxane inorganic framework structure and the two structures cooperate so that the thermal stability and mechanical properties of the silicone rubber are greatly improved. The initial decomposition temperature is 460 DEG C, tensile strength is greater than 5Mpa and breaking elongation is 300%.