24 results about "Norbornadiene" patented technology

The application provides a synthesis method of 1-substituted phenanthrene compounds, which comprises the following steps: mixing ortho-substituted aryl diazonium salt with KI, adding a palladium acetate catalyst, adding norbornadiene, adding a base, adding an organic phosphine ligand, adding 2-halobenzoic acid, heating to 80-150 DEG C in an aprotic solvent under a nitrogen atmosphere, and reacting for 2-10 hours to obtain the 1-substituted phenanthrene compounds. The method uses cheap and easily obtained ortho-substituted aryl diazonium salt instead of expensive aryl iodide to prepare 1-substituted phenanthrene compounds, and has the characteristics of easy raw material, mild conditions and simple operation, and is a simple synthesis method of 1-substituted phenanthrene compounds.

The invention relates to a synthesis method of 2, 5-norbornadiene and a cracking and addition reaction device of the 2, 5-norbornadiene, the device is characterized in that dicyclopentadiene is decomposed into cyclopentadiene at a high temperature, the cyclopentadiene is fully mixed in an acetone solvent and then fully contacted and reacted with diffused acetylene gas under the action of the addition reaction device, and the 2, 5-norbornadiene is obtained. Due to sufficient mixing and rapid reaction under a microscale, addition of dicyclopentadiene and cyclopentadiene, addition of dicyclopentadiene and acetylene and polymerization reaction of 2, 5-norbornadiene can be inhibited to a greater extent; unreacted cyclopentadiene is polymerized into dicyclopentadiene in a later process, so that recycling is facilitated; therefore, dangerous wastes are greatly reduced in the production process. A cracking device and an addition reaction device in the process are respectively formed by connecting four micro-channel assemblies and eight micro-channel assemblies in series. The method has the characteristics of high target product purity, high recovery rate, low reaction by-product content and the like.

The application discloses a binary, ternary or quaternary mixed fuel based on THDCPD, THTCPD, saturated norbornadiene dimer Exo and Binor-S, wherein the binary mixed fuel comprises two of the saturated norbornadiene dimer Exo, Binor-S, THDCPD and THTCPD; the ternary mixed fuel comprises the saturated norbornadiene dimer Exo, THDCPD and THTCPD; and the quaternary mixed fuel comprises the Binor-S, Exo, THDCPD and THTCPD. The density of the mixed fuel is greater than 0.9 g·cm ‑3 , the volumetric net heat value is greater than 38 MJ / L, the viscosity at 0 DEG C is lower than 80 Pa·s, and the freezing point is lower than -50 DEG C, so that the specific requirements of engines and aircrafts can be met.

The application provides a system and method for photocatalytic production of tetrahydrocycloheptane based on reactive distillation, and relates to the technical field of catalytic chemistry. The system comprises a backpack reactive distillation device, a solvent recovery and product purification column, and multiple heat exchangers. The backpack reactive distillation device comprises a distillation column and N photo reactors connected with the distillation column. The raw material norbornadiene, the side sampling stream of the distillation column, and the circulating stream taken from the bottom of the solvent recovery and product purification column are respectively introduced into each photo reactor from three paths. The reflux stream of the distillation column and the outlet streams of the N photo reactors are introduced into the distillation column. The crude product taken from the bottom of the distillation column is introduced into the solvent recovery and product purification column, the solvent recovery and product purification column separates and purifies tetrahydrocycloheptane and recovers the solvent, and high-efficiency and high-purity preparation of tetrahydrocycloheptane is realized.

The invention discloses a photocatalytic norbornadiene isomerization reaction device, and relates to the technical field of reaction devices, the photocatalytic norbornadiene isomerization reaction device comprises a transparent reactor, the lower end of the transparent reactor is fixedly provided with a chassis, the upper end of the transparent reactor is provided with a top cover, the transparent reactor is internally provided with a light source assembly, and the top cover is provided with a blanking assembly; the light source assembly comprises a first glass tank, and the mixing tank and the threaded conveying blade are connected with the stirring shaft through the first belt pulley, the second belt pulley and the belt body, so that the device can discharge raw materials while stirring the internal reaction raw materials, the raw materials are discharged when the stirring blade rotates, and the stirring effect is improved. According to the present invention, the newly added norbornadiene and the photocatalyst can be immediately mixed with the existing reaction mixture after entering the reaction device so as to easily maintain the uniformity of the concentration of the reactants and the catalyst in the reaction system, such that the reaction can be stably performed under the ideal condition.

The present application relates to the technical field of chemical synthesis, and specifically discloses a synthetic method of trans, trans-4-alkyl biscyclohexyl carboxylic acid. The synthetic method of trans, trans-4-alkyl biscyclohexyl carboxylic acid disclosed in the present application, including sequentially performing the following steps: adding raw material 4-alkylcyclohexyl benzoic acid, catalyst palladium carbon and co-catalyst chloronorbornadiene rhodium dimer to a solvent, carrying out hydrogenation reaction under the conditions of a temperature of 10-60 DEG C and a pressure of 1-10atm, and obtaining the trans, trans-4-alkyl biscyclohexyl carboxylic acid through post-treatment after the reaction. The method directly obtains trans, trans-4-alkyl biscyclohexyl carboxylic acid product by a one-step method, and the process is simple, can avoid the large-scale production of cis impurities, and reduces subsequent transformation steps; and the amount of three wastes generated during the preparation process is small, the obtained product is easy to purify and the yield is high, and the catalyst system can be repeatedly applied, reducing production costs.

The application relates to the technical field of high polymer materials, in particular to a hydrogenated cycloolefin polymer with high adhesion and high elongation and a preparation method thereof. The method comprises the following steps: performing a ROMP polymerization reaction on norbornadiene and a second cycloolefin in the presence of a solvent, a polymerization catalyst and a molecular weight regulator, obtaining a cycloolefin polymer solution after quenching; adding an oxidizing agent into the cycloolefin polymer solution to perform an opening ring oxidation reaction, and obtaining an intermediate after post-treatment; performing a hydrogenation reaction on the intermediate and hydrogen in the presence of a hydrogenation catalyst to obtain the hydrogenated cycloolefin polymer. The hydrogenated cycloolefin polymer provided by the application has higher elongation than conventional cycloolefin polymers, and has higher adhesion to glass and metal substrates.

The present application discloses a norbornadiene derivative, a reverse vulcanized polymer and a preparation method thereof, an optical device and a preparation method thereof, and relates to the technical field of optical materials. The application discloses a norbornadiene derivative reverse vulcanized polymer, comprising: a norbornadiene derivative and sulfur. The norbornadiene derivative has a highly symmetrical molecular structure and a low dipole moment, and therefore does not produce an obvious absorption peak in the infrared spectrum, so that the prepared reverse sulfur polymer has high infrared transparency; and the addition of sulfur further increases the content of sulfur with low infrared activity in the polymer, thereby further reducing the absorption of the polymer molecules in the infrared spectrum region and improving the infrared transparency of the material.

The invention relates to the technical field of high-molecular compounds, and particularly discloses a preparation method and application of a catalyst for synthesizing a polycyclic compound. Vanadium and a second component metal are used as active centers to synthesize the supported catalyst, due to the variable valence characteristic of the supported catalyst, the electron effect is facilitated, the orbital energy range is reduced, and then conjugated diene and norbornadiene are efficiently promoted to be subjected to a continuous cycloaddition reaction to obtain the polycyclic compound; the obtained polycyclic compound has important application value in the fields of medicines, pesticides, fuels and the like.

The invention discloses an N-alkylamine compound as well as a preparation method and application thereof, and relates to the technical field of organic synthesis. The preparation method comprises the following steps: sequentially adding 0.5 mmol of amide and 1 mmol of norbornadiene into a reaction container according to a molar ratio of 1: 2, then adding a solvent, then adding a catalyst, a ligand, an oxidizing agent, alkali and an additive in an amount which are respectively 10.0%, 20.0%, 300%, 400% and 100% of the molar weight of the amide and 5mL of the solvent, reacting for 24 hours in an air atmosphere and a 130-DEG C oil bath condition, cooling to room temperature, adding water, extracting for three times by using ethyl acetate, merging organic layers, and separating and purifying to obtain the N-norbornadiene-N, N-dialkene-N, N-dialkene-N, N-dialkene-N, N-dialkene-N, N-dialkene-N, N-dialkene. Concentrating under reduced pressure, and purifying the product by column chromatography to obtain the product organic silicon compound. In the invention, the reaction substrate is cheap, the yield is high, the selectivity is good, the separation and purification are easy, the pollution is less, the steps are simple, the protection and deprotection synthesis steps of functional groups can be omitted, and the target product N-alkylamine compound is widely applied to the aspects of organic intermediates, drug intermediates and electronic device materials of organic chemical reactions.

The invention discloses an energy-saving building formed by splicing heat collecting boxes and a using method of the energy-saving building, and belongs to the technical field of buildings. Each heat collecting box is in a hexagonal prism shape, and a circular Fresnel lens is arranged in the middle of the front vertical face of each heat collecting box; other parts of the front vertical surface of the heat collection box are coated with norbornadiene structural coatings; a ventilation water delivery port is formed in the back vertical surface of the heat collection box; openable and closable sealing covers are arranged at the wide end and the narrow end of the heat collection box; radiating fins are arranged in the heat collection box; the building body is in a rectangular pyramid shape, and ventilation columns on the base, the side faces and the interior of the building body are all composed of heat collection boxes. In winter, the Fresnel lens can be used for collecting solar energy, and the norbornadiene structural coating and water are used for storing and releasing solar thermal energy. In summer, water contained in the heat collection box is used for absorbing cold energy at night, cold energy is released indoors in the daytime, and the indoor hot environment is improved. On the premise that energy consumption is not needed, the indoor thermal environment quality and the human body comfort are improved.

The present invention belongs to the field of biomedicine, and specifically relates to the application of norbornadiene dichloroplatinum (II) and its composition with (1,5-cyclooctadiene) dichloroplatinum (II) in the preparation of anti-resistant fungal drugs. The present invention first found that norbornadiene dichloroplatinum (II) has strong antibacterial activity against wild-type and fluconazole-tolerant Candida albicans, and has low cytotoxicity, and the concentration required for 95% inhibition rate is 0.36 μM, which is better than the currently reported best metal compound (1,5-cyclooctadiene) dichloroplatinum (II), and can overcome the drug resistance of fungi. At the same time, the present invention also found that norbornadiene dichloroplatinum (II) and (1,5-cyclooctadiene) dichloroplatinum (II) have a synergistic antibacterial effect, and the composition formed by the two can further improve the inhibition rate of Candida albicans, and reduce the amount of drug used, providing a new treatment for Candida albicans infection.

The purpose of the present invention is to provide a method for producing a delta cyclen compound that is excellent in mass productivity. A method for producing a delta cyclen compound according to the present invention is a method for producing a delta cyclen compound represented by formula (1). The method is characterized by including a step for reacting norbornadiene with an alkyne represented by formula (2) in the presence of a solvent, a catalyst, a reducing agent, and a co-catalyst, wherein the solvent comprises at least one solvent selected from the group consisting of an ether-based solvent, a ketone-based solvent, an ester-based solvent, an amide-based solvent, a nitrile-based solvent, and a hydrocarbon-based solvent excluding benzene. (In formulae (1) and (2), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aromatic hydrocarbon ring group, or an alkylsilyl group.)

The invention relates to the technical field of chemical synthesis, and particularly discloses a synthesis method of trans, trans-4-alkyl dicyclohexyl formic acid. The invention discloses a synthesis method of trans, trans-4-alkyl dicyclohexyl formic acid, which sequentially comprises the following steps: sequentially adding a raw material 4-alkyl cyclohexylbenzoic acid, a catalyst palladium-carbon and a cocatalyst chloro norbornadiene rhodium dimer into a solvent, and carrying out hydrogenation reaction under the conditions that the temperature is 10-60 DEG C and the pressure is 1-10 atm to obtain the trans, trans-4-alkyl dicyclohexyl formic acid. And after the reaction is finished, carrying out post-treatment to obtain the trans, trans-4-alkyl dicyclohexyl formic acid. According to the method, the trans, trans-4-alkyl dicyclohexyl formic acid product is directly obtained through a one-step method, the preparation process is simple, a large amount of cis-impurities can be avoided, and subsequent transformation steps are reduced; and the amount of three wastes generated in the preparation process is small, the obtained product is easy to purify and high in yield, and the catalyst system can be repeatedly used, so that the production cost is reduced.

The invention provides an electrochromic device, an electrochromic material, a compound and a preparation method thereof. The electrochromic compound is formed by coupling norbornadiene and a pyridine compound, and the structure of the electrochromic compound is as follows: in the formula, R1, R2, R3 and R4 are the same or different alkyl groups; r5 and R6 are the same or different functional groups; x is any anion of halogen, F <->, Cl <->, Br <->, I <->, BF4 <->, CF3SO3 <-> and (CF3SO2) 2N <->; according to the electrochromic compound provided by the embodiment of the invention, the norbornene is adopted as a connecting bridge between the pyridine and the pyridine, and the structure of the norbornene is a three-dimensional double-ring structure, so that the phenomenon that pi-pi stacking is easy to occur in electrochemical circulation due to mutual attraction between large pi bonds of a benzene ring can be avoided; and the problem that the color-changing depth is reduced or the color becomes light due to aggregation (or deposition) of the color-changed pyridine compound in the electrolyte is solved.

This invention provides a palladium-catalyzed method for the decarbonylation and cyclization of o-halobenzoic esters to synthesize 1-substituted phenanthrene compounds. The method involves the decarbonylation and cyclization of o-substituted iodobenzene, norbornadiene, and o-halobenzoic esters in an aprotic solvent under palladium catalysis to yield 1-substituted phenanthrene compounds. This method uses o-halobenzoic esters as cyclizing agents, which not only expands the applicability of cyclizing agents but also offers advantages such as milder reaction conditions, no need for inert gas protection (e.g., nitrogen), and no use of organophosphorus ligands. It is an economical and convenient method for preparing 1-substituted phenanthrene compounds.

The invention provides a method for catalytic synthesis of a dicyclopropane high-energy fuel from Pd fullerene, belongs to the technical field of high-energy fuel synthesis, and aims to solve the technical problems of low conversion rate and low dicycloproduct selectivity in preparation of the dicyclopropane high-energy fuel from norbornadiene. The preparation method comprises the following steps: mixing a Pd / fullerene catalyst, norbornadiene, an organic solvent and alkali liquor, adding a diazo precursor for reaction, and then extracting, separating and drying a reaction solution to finally obtain a bicyclic product. The Pd electronic state is regulated and controlled by utilizing the strong electron withdrawing effect of fullerene, so that the dicyclic product selectivity of norbornadiene is improved, and the method has high conversion rate (gt; 99%) and a high bicyclic product selectivity (gt; 86%). The method is mild in reaction and simple in process, can quickly obtain the dicyclopropane-based high-energy fuel, and has the advantages that the catalyst can be recycled and the like compared with a homogeneous catalysis system. The high-efficiency and accurate synthesis of the dicyclopropane high-energy fuel is beneficial to the continuous progress of China in the field of aeronautics and astronautics.

The invention relates to the technical field of solar energy utilization and molecular energy storage materials, in particular to a norbornadiene derivative solid-state photo-thermal energy storage film based on a photo-isomerization effect and a preparation method and application of the norbornadiene derivative solid-state photo-thermal energy storage film. The invention relates to a norbornadiene derivative solid-state photo-thermal energy storage film based on a photo-isomerization effect. The norbornadiene derivative solid-state photo-thermal energy storage film is prepared by blending a derivative of a photo-responsive NBD molecule and a polystyrene (PS) polymer matrix in tetrahydrofuran (THF) through spin coating and drying processes. Under illumination, NBD molecules are subjected to photoisomerization reaction, solar energy is absorbed and stored in the form of chemical energy, and the stored energy can be released in the form of heat energy under thermal excitation. The solid-state energy storage film provided by the invention effectively solves the problems of leakage and poor thermal stability of a traditional liquid molecular solar thermal energy storage MOST system, has good integration and environmental adaptability, is perfectly compatible with an existing photovoltaic PV module, is simple to prepare and stable in performance, and has wide application prospects and popularization values.

The application belongs to the field of medicine and specifically relates to a method for preparing a compound shown in formula I, comprising the following steps: mixing a compound shown in formula V, a coupling catalyst, an oxidant and dimethyl sulfoxide, and reacting under the conditions of 50 DEG C-200 DEG C and normal pressure to obtain the compound shown in formula I; wherein the coupling catalyst is selected from one or more of chloro rhodium dimer of norbornadiene, palladium single substance, palladium acetate, tetrakis (triphenylphosphine) palladium and bis (dibenzalacetone) palladium; the oxidant is selected from one or more of manganese dioxide, silver oxide and silver acetate; R1 is selected from C1-C6 alkyl. The application also relates to a method for preparing bicyclic alcohol. The method for preparing the compound shown in formula I has the advantages of high yield, high selectivity, mild reaction conditions and simple operation.

The invention relates to the technical field of organic synthesis, and particularly discloses a method for synthesizing an indole derivative by palladium-catalyzed aryl sulfonium onium salt, which comprises the following steps: adding aryl sulfonium onium salt, diazacyclopropyridinone, an alkyne derivative or norbornadiene into a reaction container, adding a palladium catalyst, a ligand, alkali and a solvent, and reacting in inert gas at 110-140 DEG C to obtain the indole derivative. And removing the solvent after the reaction is finished, and separating to obtain the indole derivative. According to the method, aryl sulfonium onium salt, diazacyclopropyridinone, an alkyne derivative or norbornadiene are used as initial raw materials, and under the action of palladium catalysis, the indole derivative can be prepared through one-step reaction.

A method for synthesizing 2,5-norbornadiene in acetylene atmosphere, which uses cyclopentadiene (CPD) as starting material and N,N-dimethylformamide (DMF) as solvent, first prepares CPD-DMF solution, then makes the CPD-DMF solution flow through the packing ring or (and) the aluminum oxide particles in a vertical reaction tube filled with acetylene gas in the packing void space. The acetylene pressure is 0.1 MPa-0.15 MPa, the reaction temperature is 60-110 DEG C, and the material stays in the reaction tube for 7-9 minutes. The yield of 2,5-norbornadiene in the product can reach 93%.

Mixed-matrix membranes containing carbon nanotubes may be utilized for separation of carbon dioxide from a gas stream comprising one or more additional gases. The mixed-matrix membranes are polymer membranes comprising: a matrix material comprising a norbornene-based polymer, and a plurality of carbon nanotubes dispersed in the matrix material. The norbornene-based polymer may be obtained through ring-opening polymerization or addition polymerization of a suitable norbornene-based monomer. Arene annulation of norbornadiene may also be used to form the norbornene-based polymer. Carbon dioxide separation methods may comprise contacting the polymer membrane with a gas stream comprising carbon dioxide, and separating at least a first portion of the carbon dioxide from the gas stream using the polymer membrane.

The invention relates to the technical field of synthesis of phenanthrene compounds, in particular to a synthesis method of a polysubstituted phenanthrene compound. Comprising the following steps: sequentially adding a catalyst, a ligand, alkali, a reactant I, a reactant II, an N, N-dimethylacetamide solution and a number 5 magneton into a reactor, replacing by N2, connecting a condensing pipe, introducing condensed water from bottom to top, placing the reactor into an oil bath pan at 80-120 DEG C, heating, stirring and reacting for 8-24 hours, terminating the reaction, and purifying the product to obtain a phenanthrene compound product; the reactant I is selected from one of 2-bromoacetophenone, 2-bromo-5-methyl acetophenone, 2-bromo-5-methoxy acetophenone, 2-bromo-5-ethyl acetophenone or 2-bromo-5-phenyl acetophenone, and the reactant II is selected from one of 2-bromoacetophenone, 2-bromo-5-methyl acetophenone, 2-bromo-5-methoxy acetophenone, 2-bromo-5-ethyl acetophenone and 2-bromo-5-phenyl acetophenone; the reactant II is norbornadiene; the method is mild in reaction condition, high in selectivity, relatively high in yield and environment-friendly; the active product can be used in the field of synthesis of drugs, pesticides and paint dyes.

The invention discloses a norbornadiene derivative, a reverse vulcanized polymer, a preparation method of the reverse vulcanized polymer, an optical device and a preparation method of the optical device, relates to the technical field of optical materials, and discloses the norbornadiene derivative reverse vulcanized polymer which comprises a norbornadiene derivative and sulfur, the norbornadiene derivative has a highly symmetrical molecular structure and low dipole moment, so that no obvious absorption peak is generated in an infrared spectrum, and the prepared reverse sulfur polymer has high infrared transparency; by adding sulfur, the content of sulfur with relatively low infrared activity in the polymer is further increased, so that the absorption of polymer molecules in an infrared spectrum region is further reduced, and the infrared transparency of the material is improved.