8results about How to "The reaction process is simple" patented technology

The application discloses a kind of nitrogen-rich oxygen three-component high-energy density materials and synthesis method thereof.By introducing high-energy or low-sense energetic anion and cation to regulate neutral compound performance is the most direct and effective way to alleviate the contradiction between energy and stability of energetic material,can fundamentally realize the dual promotion of energy and stability.Nitrogen-rich compound 4,5-diamino-3-aminomethyl-1,2,4-triazole is used as substrate,ionization reaction is carried out with perchloric acid,then hydroxylamine ion is introduced by intermolecular force,obtains nitrogen-rich oxygen three-component high-energy density material.The synthesis method has the characteristics of easy-to-obtain raw materials,operation is simple,high safety,high yield and the like.

The application discloses a preparation method of 2,2-di(3,3'-epoxycyclohexyl)propane, which uses a cycloalkadiene compound 2,2-di(3,3'-cyclohexenyl)propane as raw material, adopts a titanium silicalite / heteropoly acid phase transfer homogeneous catalytic system, uses hydrogen peroxide as an oxidant, catalytically synthesizes mono-epoxide and di-epoxide, and finally separates, refines and purifies the mono-epoxide (2,3-epoxycyclohexyl-2,3-cyclohexenyl)propane and the target product di-epoxide 2,2-di(3,3'-epoxycyclohexyl)propane through molecular distillation. The application no longer uses a traditional peroxycarboxylic acid process, and the obtained epoxidation product has high yield, high epoxy value, low colority and low chlorine content; meanwhile, the reaction system of the epoxide is simple, the process condition is mild, the reaction time is short, the reaction is safe and controllable, the environment is friendly, the technical and economic requirements can be met, the operation can be continuous, and the application is particularly suitable for occasions of large-scale production.

The invention discloses a synthesis method of an FLT3 inhibitor of quinatinib dihydrochloride. According to the method disclosed by the invention, the raw material drug of the quinatinib dihydrochloride is synthesized and prepared through seven chemical reactions including Boc protecting group feeding, bromination reaction, condensation ring closing reaction, Boc protecting group removal, phosgene condensation reaction, final etherification reaction to obtain the quinatinib, and final salification. The method has the advantages of wide raw material source, low cost, simplicity in operation, high product recovery rate, easiness in industrial industrialization and the like.

The invention belongs to the field of organic chemical synthesis, and particularly relates to a preparation method of an imino aryl compound containing uracil. The imino aryl compound containing uracil is prepared through a series of reactions. The purity of the product finally obtained through the synthesis route is 99% or above, meanwhile, high-toxicity and difficult-to-treat waste water is not generated in the process route, the used raw materials are cheap and easy to purchase, the reaction process is simple, the condition is mild, the requirement for equipment is low, the process cost is low, and industrial production is easy to carry out.

The application discloses a kind of nitrogen-rich high-energy anti-perovskite materials and preparation method thereof, respectively with nitrogen-rich compound 5,5-bis-tetrazole and 3,5-dinitramino-1,2,4-triazole as negative divalent ion and negative monovalent ion component raw material, with hydroxylamine as positive monovalent ion component raw material, three components are integrated by ionization reaction, and nitrogen-rich anti-perovskite material ANP-1 is obtained.The synthesis method of the application has the characteristics of easy to obtain raw materials, simple operation, high safety, high yield and the like.

The application discloses alkali metal doped MOF-74, a gas sensitive material, a gas sensitive sensor and a preparation method and application thereof, and belongs to the technical field of gas sensitive sensors. The application takes magnesium nitrate hexahydrate and 2,5-dihydroxyterephthalic acid as raw materials, in-situ adds alkali metal salt doping, takes triethylamine (TEA) as a deprotonating agent, optimizes a reaction process, rapidly performs synthesis of the alkali metal doped MOF-74 at room temperature, realizes miniaturization of the MOF-74 without losing crystallinity and high porosity, and is favorable for improving the gas sensitive performance of the material. The alkali metal doped MOF-74 is used for the gas sensitive sensor, has excellent selectivity and high sensing response to CO2 gas, and can meet the demand of CO2 gas detection. Moreover, the preparation period is short, heating is not needed, and the method is favorable for large-scale production.

The present application relates to a kind of method for improving the content of meaty substance in thiamine degradation product and the application of degradation product, belong to food processing technical field.Through the thiamine hydrochloride, food additive and solvent are added in closed reaction container, stirring reaction 10-180min under 80-140 ℃, after reaction, cooling, obtain thiamine degradation product.The method can greatly improve the generation amount of meaty compound in thiamine degradation process, thiamine degradation product can be directly used in reaction essence preparation, enhance meaty, reduce cost.In addition, by edible oil or capric caprylic acid glyceride, thiamine degradation product is extracted, separated and dried, obtain meaty seasoning oil, remove bitter substance in taste, for meaty reaction or flavoring product, also can play the role of enhancing meaty, reducing cost, with wide application prospect.

This invention relates to the field of perovskite solar cells, specifically a method for preparing high-purity formamidinium hydroiodate, comprising the following steps: dissolving formamidinium acetate in hydroiodic acid solution and stirring to obtain a precursor solution of formamidinium hydroiodate; heating the solution in an oil bath to obtain a crude product of formamidinium hydroiodate; cooling the product and adding an ethanol solution, then heating again until completely dissolved to obtain a hot saturated solution; removing the hot solution and vacuum filtering, and pouring the resulting mother liquor into a crystallizing dish for crystallization; after crystallization, adding diethyl ether for washing; placing the washed flaky crystals in an oil bath and adding ethanol again for heating to dissolve, then filtering, and pouring the resulting mother liquor back into a crystallizing dish for low-temperature crystallization; repeating the above steps three times; and vacuum drying the obtained product to obtain formamidinium hydroiodate, which is the target product. The formamidinium hydroiodate of this invention, when applied to a perovskite layer, can greatly improve the photovoltaic performance of perovskite solar cells and significantly improve the stability of the device.