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598results about "Amino preparation from amines" patented technology

Aggregation-induced emission molecule as well as preparation method and use thereof

InactiveCN103194215AControl Conjugate LengthEfficient luminous efficiencyAmino preparation from aminesSolid-state devicesStructural formulaLight-emitting diode
The invention discloses an aggregation-induced emission molecule as well as a preparation method and use thereof. The aggregation-induced emission molecule has a structural formula (shown in the description), wherein when Ar1 and Ar2 are same groups, Ar2 is a group shown in the description; and when Ar2 is hydrogen, Ar1 is a group shown in the description. The preparation method comprises the steps of: starting from a group shown in the description, wherein X=br, and Y=H or X=H, and Y=Br and tetraphenyl ethylene boric acid ester, obtaining derivatives of fluorene containing toluene and triphenylamine units by utilizing an acid-induced intramolecular dehydration reaction, linking tetraphenyl ethylene to a ninth site of the fluorine in a conjugated manner by utilizing a Suzuki reaction, and finally obtaining a target compound. According to the compound disclosed by the invention, the heat stability and the aggregation-induced emission property are good, the solid fluorescence quanta of the compound are high in yield and are emitted by blue lights, and the compound can be applied to a luminescent layer material of a blue-light inorganic light emitting diode; and the reaction conditions of the preparation method are mild, and the yield is high.
Owner:WUHAN UNIV

Novel diamine compound, and preparation method and application thereof

The invention discloses a novel diamine compound, and a preparation method and an application thereof. The preparation method of the novel functional diamine compound comprises the following steps: a large conjugate structure comprising benzophenone carbonyl group is obtained; the ketone carbonyl group is subjected to a Wittig or Wittig-Horner reaction, such that a large conjugate system with a triphenylethylene/tetraphenylethylene structure and comprising a halogen atom is obtained; the halogen atom is further subjected to a Suzuki reaction or a plurality steps of reactions, such that a monoamine compound comprising a triphenylethylene/tetraphenylethylene large conjugate system is obtained; the monoamine compound is subjected to a reaction with halogenated nitrobenzene, such that a dinitro monomer comprising triphenylamine and the triphenylethylene/tetraphenylethylene large conjugate system is obtained; and the dinitro monomer is reduced into the novel diamine compound, such that the novel functional diamine compound comprising triphenylamine and a triphenylethylene/tetraphenylethylene structure is obtained. The synthesis method provided by the invention is simple. Purification is easy. The method is suitable for industrial productions. The synthesized diamine compound has a significant aggregation-induced emission property, and can be used for synthesizing high-performance and functional polymers such as polyamide, polyimide, polyamideimide, polyesterimide, and the like.
Owner:SUN YAT SEN UNIV

Novel technique for synthesizing quaternary ammonium salt

The invention relates to a technique method for preparing quaternary ammonium salt through a reaction of carbonate and ammonium salt without any catalyst; aiming at the shortcoming showed in the former documents (the application number is 200510061094.4) that catalyst is used in the synthesis reaction of the carbonate and the ammonium salt, through improving the technique, the method makes the reaction possible in the condition of no catalyst, which also leads the yield of products of halide quaternary ammonium and sulfuric quaternary ammonium salt to be equal or more than 99 percent so as to avoid the problems such as the impurity of products caused by the difficult separation of catalyst and products and the catalyst which can not be used repeatedly; the technique process of the method is as following, amine is in a neutralization reaction with acid or the solution of acid, when an end point is reached, absolute ammonium salt is obtained after water elimination and drying, then certain amount of carbonate and ammonium salt are separately weighted and put in to a reaction kettle which is then sealed, the carbonate and ammonium salt are in reaction with agitation, the reaction temperature is between 50 to 300 DEG C and the reaction time is between 0.5 to 20 hours.
Owner:安徽奔马先端科技有限公司

Ionic liquid compound with anion containing double Lewis base functional groups, preparation method thereof and application thereof

Provided is an ionic liquid compound with anion containing double Lewis base functional groups. A cation of the ionic liquid compound with the anion containing the double Lewis base functional groups is tetra-alkyl quaternary ammonium, tetra-alkyl quaternary phosphine or N, N-dialkyl-imidazole. The anion is an organic anion which simultaneously contains a carboxylate radical perssad with weak Lewis basicity and a tertiary amine perssad (trialkylamine or tertiary amine on a heterocycle) with the weak Lewis basicity. The ionic liquid compound with the anion containing the double Lewis base functional groups is used for selectively removing hydrogen sulfide (H2S). When partial pressure of the H2S is respectively 10kPa, 20kPa, 50kPa and 100kPa, a molar ratio between an absorptive amount of the H2S and the ionic liquid compound with the anion containing the double Lewis base functional groups is respectively 0.409, 0.484, 0.638 and 0.809. When the partial pressure of the H2S is respectively 10kPa, 20kPa, 50kPa and 100kPa, ideal absorption selectivity of the ionic liquid compound with the anion containing the double Lewis base functional groups to H2S/carbon dioxide (CO2) is respectively 60.3, 39.1, 21.8 and 15.8. The invention discloses a preparation method of the ionic liquid compound with the anion containing the double Lewis base functional groups.
Owner:NANJING UNIV

A kind of anti-aging agent 4020 continuous production process

The invention discloses a continuous producing process of an anti-aging agent 4020, which has the advantages of stability and reliability in operation and high production efficiency. The process comprises the following steps of: adopting 4-aminodiphenylamine, methyl isobutyl ketone and hydrogen as raw materials; mutually preheating all raw materials by a preheater E101; enabling the preheated rawmaterials to enter a reactor; and carrying out catalytic hydrogenation reaction on the raw materials at a high pressure under the effect of a catalyst so as to obtain the anti-aging agent 4020, wherein the reactor is a gas-liquid-solid three-phase fixed bed hydrogenation reactor; the hydrogenation reaction is continuous operation carried out by using the gas-liquid-solid three-phase fixed bed hydrogenation reactor; the gas-liquid-solid three-phase fixed bed hydrogenation reactor comprises a main body container, a discharging opening, a completely discharging opening, a feed pre-distributor, an upper seal head, a lower seal head, an upper support, a lower support and a temperature measuring opening, wherein the feed pre-distributor is an exhaust pipe type pre-distributor which is mounted at the lower part of the main body container; the upper seal head is an elliptical seal head; and the lower seal head is also an elliptical seal head; and the temperature is 165-230 DEG C, the pressureis 5.5-6.0 MPa, the keto-amine ratio is 2-4:1 and the hydrogen-oil ratio is 2000-5000:1 during reaction.
Owner:NANJING ENVIRO CHEM ENG DESIGN
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