11 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 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 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 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.

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.