31 results about "Fluoroantimonic acid" patented technology

A phosphor for converting ultraviolet light or blue light emitted from a light emitting element into a visible white radiation having a high level of color rendering properties, containing a light emitting component prepared from a solid system of an alkaline earth metal antimonate and a system derived from the solid system and exhibiting intrinsic photoemission, such as a fluoroantimonate, a light emitting component prepared from a manganese(IV)-activated antimonate, a titanate, silicate-germanate, and an aluminate, a light emitting component prepared from a europium-activated silicate-germanate or from a system containing a sensitizer selected from a group consisting of europium (II) and manganese (II) as a secondary activator and having an orange color or a dark red color in the spectrum range over 600 nm, or a light emitting component composed of a mixture of eight or less light emitting components having different emission bands and brought to a state of continuous emission of about 380 to 780 nm exhibiting a color temperature of about 10,000 to 6,500 K and a color temperature of about 3,000 to 2,000 K by virtue of the superposition of the light emitting bands.

The present invention provides a kind of synthetic method that under the action of monovalent silver and reducing agent, the tryptamine alkyne amide substrate containing indole can generate hydrogenated pyridine spiroindoline ring at room temperature, the general reaction formula is as follows , where R 1 , R 2 , R 3 , R 4 As described in the claims and description. The silver catalyst required for the reaction is one of silver trifluoromethanesulfonate, silver hexafluoroantimonate, silver tetrafluoroborate, and silver bistrifluoromethanesulfonimide. The reducing agent required for the reaction is Hans ester. The medium required for the reaction is: toluene. The implementation of the reaction is stirring at room temperature. The method of the invention has easy-to-obtain raw materials, simple operation, wide application range, good atom economy, green reaction and low price.

The invention discloses a preparation method of silver hexafluoroantimonate. The preparation method comprises the following steps: mixing antimony trioxide and an acetic acid solution containing hydrogen fluoride, dropwise adding hydrogen peroxide at a speed of 1 to 30 mL / min to obtain a hexafluoroantimonate solution, adding silver carbonate to obtain a silver hexafluoroantimonate mother solution, concentrating, cooling, crystallizing to otain silver hexafluoroantimonate crude crystals, recrystallizing and purifying to obtain a silver hexafluoroantimonate product. By selecting the raw materials provided by the invention and controlling the reaction sequence of various steps, the reaction temperature, the reaction time as well as the dropwise addition speed of hydrogen peroxide, the entireoperation process of the preparation method provided by the invention is convenient, the reaction condition is mild, the raw material price is low, the environmental pollution is slight, the removalrate of impurities is high, and the purity of a final product is high and can reach 99 percent or more.

The invention discloses a method for producing fluoroberyllium acid and ammonium fluoride beryllium from a beryllium sulfate-containing solution, comprising the following steps: (1) after adjusting the pH value of the beryllium sulfate-containing solution, extracting with an iron extracting agent to obtain extracted iron (2) extracting the post-iron solution with beryllium extraction agent to obtain the beryllium post-extraction solution and beryllium-carrying organic phase; (3) using a mixed solution of oxalic acid and sodium sulfite to extract the beryllium-carrying organic phase (4) back-extracting the washed organic phase with a hydrofluoric acid solution to obtain a fluoroberyllium acid solution; this method shortens the technological process of beryllium production and improves the recovery of beryllium rate, reduce production costs, and stabilize the quality of beryllium.

The present invention relates to a kind of preparation method of 4-substituted phenylthioisoquinolin-1(2H)-ketone compound, comprising the following steps: raw material isoquinolin-1(2H)-ketone and diaryl disulfide Dissolve in dichloroethane, then add silver hexafluoroantimonate, react at 60-140°C for 6-12 hours, separate and purify the crude product after the reaction is terminated, and obtain 4-substituted phenylthioisoquinoline-1 (2H )-ketone compounds. The method has the advantages of simple and easy-to-obtain raw materials, simple operation without harsh reaction conditions such as anhydrous and oxygen-free, high yield, high selectivity, wide substrate adaptability, and easy purification of prepared products.

The invention discloses a europium ion Eu 3+ Activated fluoroantimonate orange-red phosphor and preparation method thereof, chemical formula is Ca 4 Sr 3‑3x Eu 3x [Sb 12 o 36 ]F 2 , where the active ion is europium ion Eu 3+ , x is Eu 3+ doped Sr 2+ The molar ratio of bits, 0.025≤x≤0.6. The phosphor powder prepared by the invention has small particles and uniform distribution, good dispersion, good crystallinity, high luminous efficiency, good stability, and purer orange-red fluorescence chromaticity; Under the excitation of ultraviolet light, it emits pure orange-red light, and the luminous wavelength is mainly 590nm. It can be widely used as a fluorescent material for preparing white light LEDs; during preparation, the compounds containing the elements required for the synthesis of luminescent materials are mixed in proportion, and the high-temperature solid-phase method is used. The preparation is prepared by repeated calcination, and has the advantages of simple preparation method, low requirement for equipment, and environmental friendliness.

The present invention relates to a synthesizing method for 4,4 double hexabromocyclododecane alkyl benzene iodine fluorin antimonite, which is made with the following steps: (1) 4,4 double hexabromocyclododecane alkyl benzene iodine is prepared by the reaction with barium chloride under the function of vitriol taking detergent alkylate and potassium iodate as the material, and acetic anhydride as the solution; (2) 4,4 double hexabromocyclododecane alkyl benzene iodine fluorin antimonite is prepared by the ion reaction between 4,4 double hexabromocyclododecane alkyl benzene iodine and fluorin potassium metaantimonate in cyclohexane, chloroform or dichloroethane solution agent. The 4,4 double hexabromocyclododecane alkyl benzene iodine fluorin antimonite synthesized by the present invention has much better solidified performance to the resin.

The invention discloses a method for cross dehydrogenation coupling of aromatic carboxylic acid and α, β-unsaturated ester. In the method, silver carbonate or silver fluoride is used as oxidant, and pentamethylcyclopentadienyl rhodium dichloride Dimer or bis(hexafluoroantimonate) triacetonitrile (pentamethylcyclopentadienyl) rhodium is used as a catalyst to catalyze the cross dehydrogenation coupling reaction of aromatic carboxylic acid and α, β-unsaturated ester. In the reaction, the ortho-position C-H bonds of aromatic carboxylic acids and α, β-unsaturated esters directly undergo cross-dehydrogenation coupling reactions, and a series of carboxyl-ortho-alkenylated aromatic carboxylic acid compounds are efficiently synthesized. The invention has the characteristics of simple and easy-to-obtain raw materials, mild reaction conditions, low reaction temperature, short time, simple operation and the like.

The invention discloses a preparation method of novel fluorocyclopentenone and its product. It is characterized in that: including, adding methyl tert-butyl ether, enynyl ester, (acetonitrile) [(2-biphenyl) di-tert-butylphosphine] gold (I) hexafluoroantimonate, N-fluorobisbenzenesulfonate Amides are reacted to obtain the fluorocyclopentenones. A novel method for preparing fluorocyclopentenone compounds provided by the invention allows enynate compounds to be converted into fluorocyclopentenone compounds. The whole reaction is carried out at normal temperature and pressure, with mild conditions and low energy consumption. The whole reaction is carried out in a one-pot method, the operation is simple, the yield is high, and the product purity is above 98%. The range of reaction substrates is wide, not only simple enynate compounds are applicable, but also complex compounds containing natural product groups. The developed fluorocyclopentenone compounds have potential biological activity and can be tested or modified into drugs.

The invention discloses a preparation method of novel 5-allyl cyclopentenone and its product. It includes: first, sequentially add molecular sieves, anhydrous dichloroethane, enynyl ester, (acetonitrile) [(2-biphenyl) di-tert-butylphosphine] gold (I) hexafluoroantimonate, and stir under normal temperature and pressure 3 hours; Next, add tetrakis (triphenylphosphine) palladium, stir at normal temperature and pressure for 2 hours, then concentrate the reaction solution by rotary evaporation, and obtain the target product 5-allyl cyclopentenone by silica gel column chromatography. The whole reaction is carried out at normal temperature and pressure, with mild conditions and low energy consumption. The whole reaction is carried out in a "one-pot" gold-palladium co-catalysis method, without the need to separate intermediates, and has good atom economy. The range of reaction substrates is wide, not only simple enynate compounds can be applied, but also natural products can be modified. The 5‑allylcyclopentenone compound developed by research and development has potential biological activity, and its drug activity can be tested for subsequent drug screening.

The invention provides a monovalent silver-catalyzed synthesis method for an azaindole seven-membered ring, belonging to the field of organic synthesis. In a general reaction formula as described in the specification, R1, R2 and R3 are as defined in the claims and the specification. A silver catalyst needed in a reaction is one selected from a group consisting of silver trifluoromethanesulfonate,silver hexafluoroantimonate, silver tetrafluoroborate and silver bis(trifluoromethanesulfonimide). A medium needed in the reaction is toluene. The reaction is carried out at room temperature under thecondition of stirring. The method has the advantages of easy availability of raw materials, simple operation, a wide application scope, good atomic economy, green reaction, and low price.

The invention relates to a novel chiral iron complex, in particular to a novel axial chiral iron complex of a nitrogen ligand. The novel chiral iron complex has the following structural formula: wherein m+n is between 2 and 3; m is an integer from 0 to 3; n is an integer from 0 to 3; X and Y are halogens, C1-C8 carboxylate radials, sulfate radicals, perchlorate radicals, 4-(3,5-bi-trifluoromethylphenyl) borate radials, 4-(pentafluoro phenyl) borate radials, 4(perfluoro tert-butoxy ) aluminum ions, 4(hexafluoro isopropoxy) aluminum ions, hexafluoro phosphate radicals, hexafluoro antimonate radials, tetrafluoro borate radials or trifluoro methanesulfonic acid radials; and X and Y are the same or different. The invention also provides a method for preparing the novel chiral iron complex. The novel axial chiral iron complex of the nitrogen ligand can catalyze the insertion reaction of dissymmetrical O-H bonds of alpha-diazotate and show high activity and enantioselectivity.