25 results about "Iodide salt" patented technology

This invention discloses a method for photo-promoted coupling of sulfonyl chlorides with olefins to prepare vinyl sulfone compounds. Using arylsulfonyl chloride as shown in formula (I) as a raw material, iodide salt, an olefin compound as shown in formula (II), a solvent, and a base are added to a reactor. The reaction is carried out under a nitrogen atmosphere and ultraviolet light irradiation to obtain a vinyl sulfone compound as shown in formula (III). The reaction equation is as follows: In formula (I), the Ar group is phenyl, substituted phenyl, or 3,5-dimethylisoxazole, and the substituent on the substituted phenyl group is fluorine, iodine, cyano, nitro, methyl, or trifluoromethyl. In formula (II), the hydrogen on the benzene ring is substituted or unsubstituted by substituent R2, where substituent R2 is fluorine or tert-butyl, and substituent R1 is hydrogen or phenyl. This invention uses inexpensive and readily available sulfonyl chlorides to efficiently promote the preparation of vinyl sulfone compounds from arylsulfonyl chlorides and olefin compounds. It uses light irradiation instead of traditional heating reactions, does not require the addition of precious metal catalysts, and has low reaction cost and high safety.

The invention relates to a process for preparing a block copolymer, the process comprising: a) adding at least one ethylenically unsaturated hydrophilic monomer and a composition Y to a reactor for polymerization; b) adding at least one ethylenically unsaturated hydrophobic monomer to the reactor for polymerization after the polymerization of step a) to obtain an amphiphilic diblock copolymer; c) adding at least one ethylenically unsaturated hydrophobic monomer to the reactor for polymerization after the polymerization of step b); wherein the composition Y contains: A) at least one halogen molecule or halogenated hydrocarbon optionally substituted by cyano, B) at least one iodide salt, and C) at least one free radical polymerization initiator, wherein the equivalent ratio of the at least one ethylenically unsaturated hydrophobic monomer in step b) to the polymer formed from the at least one ethylenically unsaturated hydrophilic monomer in step a) is in the range of 5 to 60.

A flow containing iodine (I2) vapor and at least one of an inert gas and water vapor. One method for recovering iodine (I2) is to bring the flow into contact with an alkaline solution to form an iodide salt. To achieve, to bring the flow into contact with the adsorbent and selectively adsorb water from the flow, to concentrate the flow By contacting it with an acid, water vapor is absorbed from the flow, or iodine (I2) vapor is back sublimated or Condensing to form solid or liquid iodine (I2), or bringing the flow into contact with the material Furthermore, among the absorption of latent heat and sensible heat by a material through its phase change, When performing at least one of the following, iodine (I2) vapor is condensed or backsublimated from the flow. It can include the following:

The present invention primarily relates to a method for producing a compound of formula (I) and / or a physiologically acceptable salt thereof from vanillylmandelic acid and / or a physiologically acceptable salt thereof. The present invention further relates to the simultaneous use of one or more iodide salt(s) or hydrate(s) thereof, one or more reducing agent(s), one or more inorganic and / or organic acid(s) other than phosphonic acid, and methanol and / or a physiologically acceptable salt thereof or an alcohol of formula (II) as defined herein and / or a physiologically acceptable salt thereof for converting vanillylmandelic acid and / or a physiologically acceptable salt thereof into a compound of formula (I) and / or a physiologically acceptable salt thereof or into a compound of formula (III) as defined herein and / or a physiologically acceptable salt thereof.

A composition comprising: lactoperoxidase, an iodide salt, and a pharmaceutically acceptable carrier and / or excipient is provided, for use in the treatment or prevention of equine gastric ulcer syndro

This invention discloses a method for preparing pentafluorocarbonyl oxomethyl carboxylate. Specifically, this invention discloses a method for preparing a compound as shown in formula (I), comprising the following steps: Step S1: In a solvent, under the action of an organic base, compound 1 and compound 2 undergo a substitution reaction as shown below to prepare compound 3; Step S2: In a solvent, in the presence of a base and an iodide salt, compound 3 and compound 4 undergo a condensation reaction as shown below to prepare the compound as shown in formula (I).

[Problem] To provide a method with which an organic iodine compound, which is useful as a polymerization initiator or the like, can be produced in an efficient and industrially advantageous manner with good purity. [Solution] Provided is a method for producing an organic iodine compound represented by general formula (II) by reacting a tertiary halogeno compound represented by general formula (I) with an iodide salt in the presence of a Lewis acid. (In the formulae, X denotes a chlorine atom or a bromine atom, and R1 and R2 each independently denote an alkyl group having 1-6 carbon atoms or together denote an alkylene group having 2-6 carbon atoms. EWG denotes an electron-withdrawing group.)

Methods, systems, and apparatus for disrupting PFAS comprising adding sulfite to an aqueous solution containing PFAS and then irradiating the aqueous solution with light of 222 nm. The method may comprise adding a sufficient amount of a base to the aqueous solution to raise the pH of the aqueous solution comprising PFAS to about 10 or more. It may also comprise the addition of a halide salt (e.g., a bromide salt or iodised salt), and further the addition of a carbonate. By irradiating the aqueous solution in this manner, 90% or more, or 99% or more, of PFAS in the solution can be destroyed.

To provide a method for producing an organic iodine compound, by which the organic iodine compound useful as a polymerization initiator, a synthetic raw material for various chemicals, or the like, can industrially advantageously be produced in a good yield and in good purity.SOLUTION: The method for producing the organic iodine compound represented by general formula (IV) comprises reacting a polyhydric alcohol represented by general formula (I) with a halogenocarboxylic acid represented by general formula (II) in the presence of an acid to obtain an ester compound represented by general formula (III) and reacting the ester compound with an iodide salt in the presence of a Lewis acid. (In the formula, L represents an n-valent organic group having 2 to 20 carbon atoms, X represents a chloride atom or a bromide atom, and R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms or together represent an alkylene group having 2 to 6 carbon atoms.). N represents an integer of 2 to 6. A represents a positive number of 0 or more and less than n, and b represents a positive number of more than 0 and n or less. Here, a + b = n. ) SELECTED DRAWING: None

Methods of recovering iodine (I2) from a stream including iodine (I2) vapor and at least one of: an inert gas and water vapor can include contacting the stream with an alkaline solution to form an iodide salt, contacting the stream with an adsorbent to selectively adsorb water from the stream, contacting the stream with a concentrated acid to absorb the water vapor from the stream, desublimating or condensing the iodine (I2) vapor to form solid or liquid iodine (I2), or contacting the stream with a material to condense or de-sublimate the iodine (I2) vapor from the stream as the material at least one of: absorbs latent heat through a phase change of the material and absorbs sensible heat.

Flow energy storage device (1) comprising: - a feed container (2) containing uncharged electrolyte slurry (30) ; - a capacitor flow cell (5) having a first half-cell (6), a second half-cell (7) and a porous separator membrane (8) interposed between, wherein the half-cells (6,7) are each connected to the feed container (2) and supplied with the same electrolyte slurry (30), wherein - the first half-cell is configured to be electrically coupled with a first positive current collector (9), and - the second half-cell is configured to be electrically coupled with a second negative current collector (11); - said electrolyte slurry comprises activated porous carbon particles (31) and one electrolyte salt comprising redox-active iodide salt; - whereby in a charged state in the first half-cell a first negative slurry electrode (10) with charged negative electrode particles (32) comprising iodine (34), and in the second half-cell a second positive slurry electrode (12) with charged positive electrode particles (33) are formed.

The invention discloses an N-heterocyclic carbene metal complex and a preparation method thereof, a preparation method of NHC-M / BN.The preparation method of the N-heterocyclic carbene metal complex comprises the steps that 1, 3-dimethylimidazole iodized salt, silver oxide and silver carbonate are weighed and dissolved in acetonitrile, a reflux heating reaction is carried out, after the reaction is completed, filtering is carried out, solids are removed, the solution is subpackaged in small bottles, and the N-heterocyclic carbene metal complex is obtained. The method comprises the following steps: mixing acetonitrile and acetone, sealing and pricking, sealing in a container filled with acetone, standing, mutually diffusing acetonitrile and acetone, obtaining an N-heterocyclic carbene silver complex crystal after 3-5 days, and drying to obtain a product. The hexagonal boron nitride is subjected to surface modification by adopting an N-heterocyclic carbene metal complex, a novel composite nano heat-conducting filler is developed and serves as an auxiliary component of an electronic cooling liquid formula, and the problems that the electronic cooling liquid taking the hexagonal boron nitride as a heat-conducting additive is poor in compatibility and stability and the like are solved; a novel formula with better performance and environment friendliness is provided for the field of electronic coolants.

The reverse iodine transfer polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, a salt thereof, or a combination thereof, in the presence of a radical polymerization initiator, an oxidant, an iodide salt, and a solvent, is a useful method for manufacturing (meth)acrylic acid polymers. The amounts of components used can range from 5 to 500 equivalents of the ethylenically unsaturated monomer comprising (meth)acrylic acid, a salt thereof, or a combination thereof, in the presence of 1 to 3 equivalents of the radical polymerization initiator, 0.2 to 1 equivalent of the oxidant, and 1 equivalent of the iodide salt. (Meth)acrylic acid polymer solutions are prepared by these methods. (Meth)acrylic polymers are useful as dispersants.

This method for operating an electrodialysis device comprises a step for electrodialyzing an iodide-containing solution containing an iodide salt and a solvent using an electrodialysis device provided with an anion exchange membrane having a monovalent ion permselective layer. In the anion exchange membrane electrodialysis step, a current-voltage curve indicating the relationship between a direct current and a voltage is obtained by a direct current resistance measurement method, and a minimum value appears in a quadratic differential value curve obtained by performing quadratic differentiation on the current-voltage curve. The current density (A / dm2) is set to a1 / d or more, where d is the effective area (dm2) of the anion exchange membrane and a1 is the value of the direct current (A) corresponding to the minimum value appearing in the quadratic differential value curve.

The application relates to the technical field of medical devices, in particular to a bionic liver ablation training phantom, wherein a bionic liver tissue base material adopts a double-network hydrogel system formed by polyvinyl alcohol and acrylamide, the conductivity and the sound velocity are adjusted by adding iodized salt, and the acoustic impedance and the sound attenuation coefficient are adjusted by adding barium sulfate powder; the bionic tumor lesion contains a heat-sensitive developing system and an ultrasonic imaging regulator, so that the bionic tumor lesion presents different echo characteristics from normal liver tissue under ultrasonic waves and can permanently change color after ablation to directly show the heat field range; and the bionic blood vessel structure is made of a three-dimensional printing TPU hose. The phantom is stable in physical and chemical properties, can be stored for a long time and used for multiple times, the raw materials are common chemical materials, the cost is low, the preparation process is simple, and the phantom is suitable for large-scale production.

The invention relates to the technical field of sodium-ion batteries, in particular to a preparation method of an epoxy resin-based hard carbon material based on assistance of iodized metal salt and application of the epoxy resin-based hard carbon material as a sodium-ion battery negative electrode material. The hard carbon material with excellent electrochemical performance is prepared by uniformly mixing the iodized metal salt and the epoxy resin and carrying out the steps of pre-sintering, high-temperature pyrolysis and the like. By utilizing the unique pyrolysis property of iodized metal salt, the surface defect construction and internal pore structure regulation and control of the epoxy resin-based hard carbon are synchronously realized in the heating process: the iodized metal salt is easily combined with oxygen-containing gas generated by pyrolysis of epoxy resin to generate metal oxide and iodine simple substance, and the characteristic that iodine is easy to sublimate is combined; the iodine vapor continuously volatilizes to etch the carbon surface so as to increase sodium ion adsorption active sites, and meanwhile, the metal oxide effectively regulates and controls the internal pore structure of the hard carbon through a carbon thermal reduction reaction at a high temperature. The hard carbon material is used as a sodium ion battery negative electrode material, and shows high specific capacity, excellent rate capability and long cycle stability.

[Problem] To provide a method by which an organic iodine compound that is useful as, for example, a polymerization initiator and a raw material for synthesizing various chemicals can be industrially advantageously produced with good yield and good purity. [Solution] A method for producing an organic iodine compound represented by general formula (IV), the method comprising reacting a polyhydric alcohol represented by general formula (I) with a halogenocarboxylic acid represented by general formula (II) in the presence of an acid to obtain an ester compound represented by general formula (III), and reacting the ester compound with an iodide salt in the presence of a Lewis acid. (In the formulae, L represents a C2-C20 n-valent organic group, X represents a chlorine atom or a bromine atom, and R1 and R2 each independently represent a C1-C6 alkyl group or in combination represent a C2-C6 alkylene group; n is an integer of 2-6; and a is a positive number of 0 or greater but less than n, and b is a positive number greater than 0 but not greater than n, with the proviso that a+b=n.)

A composition containing lactoperoxidase and one or more iodized salts is used to treat equine gastric ulcer syndrome.

The invention discloses a fluorescent probe and application thereof in preparation of a reagent for detecting viscosity change of a liquid sample or mitochondria, and belongs to the field of fluorescent probes. The invention discloses a fluorescent probe (E)-1-(2-ethoxyl)-2-(2-(6-methoxynaphthalene-2) vinyl) quinoline-1-iodised salt and application of the fluorescent probe (E)-1-(2-ethoxyl)-2-(2-(6-methoxynaphthalene-2) vinyl) quinoline-1-iodised salt in preparation of a reagent for detecting viscosity change of a liquid sample or mitochondria for the first time. The fluorescent compound does not need to be washed, and when the fluorescent compound is used for observing mitochondrial viscosity, influence of washing on viscosity and damage to cells can be avoided. A new strategy is provided for detecting the mitochondrial viscosity change.

The present disclosure relates to a process for preparing a polymer from at least one ethylenically unsaturated monomer M, the process comprising: a) reacting an oxidizing agent with an iodide salt in a reactor until the oxidizing agent is fully consumed, and b) adding a free radical polymerization initiator to the reactor after step a) for polymerization, wherein the at least one ethylenically unsaturated monomer M is added in step a) and / or step b), preferably in step b). The disclosure further relates to a polymer obtained therefrom. The process of the present disclosure provides a new polymerization pathway in RCMP that does not involve the direct use of alkyl iodide and iodine and is suitable for various polymerizations.

The invention discloses a preparation method of a drug intermediate 6-iodoindazole. The method comprises the following steps: by taking 6-nitroindazole as a raw material, in an acetic acid solvent, in the presence of iodized salt and strong acid, firstly heating and stirring for pretreatment, then cooling the system to 0 DEG C, and then adding a sodium nitrite aqueous solution for reaction to obtain the target product 6-iodoindazole. The method provided by the invention has the advantages of easily available raw materials, high reaction selectivity, less three wastes, high total yield (87%) and the like, is safe and simple to operate, effectively overcomes the defects of harsh conditions, serious pollution and high cost of the traditional diazotization method, and provides a technical route with great industrial prospects for large-scale production of the key intermediate of the anti-cancer drug axitinib.

The application discloses an electrochemical auxiliary polishing electrolyte, a preparation method thereof and an electrochemical polishing method. The electrochemical auxiliary polishing electrolyte comprises choline chloride, ethylene glycol, iodide salt, nano silicon dioxide, a reducing agent, an organic silicon surfactant, potassium humate, a pH buffer and a dispersing agent according to mass parts. The application uses a choline chloride-ethylene glycol eutectic solvent as a base to realize micro leveling; the iodide salt destroys the surface oxide film of a metal workpiece; the reducing agent and the iodide salt form a redox cycle to prolong the service life of the electrolyte; the organic silicon surfactant reduces the surface tension and promotes bubble detachment; the potassium humate selectively adsorbs and levels and complexes metal ions; and the nano silicon dioxide introduces mechanical synergistic polishing. The electrolyte can reduce the surface roughness of the workpiece within 2-10 minutes, is environmentally friendly and safe, and is suitable for the fields of medical devices and aerospace precision parts.

The present application discloses a method for preparing fornetupitant, comprising the following steps: stirring netupitant, dialkyl chloromethyl phosphate, an iodide salt, and a ketone solvent; filtering the obtained mixture, concentrating the filtrate, adding an alkane solvent, crystallizing, and filtering to obtain a transition state mixture; dissolving the obtained transition state mixture in the ketone solvent, alcohol solvent, or dioxane, and then adding an acid solution for reaction. After the reaction is complete, adding the ketone solvent or dioxane solvent, stirring for crystallization, filtering, and drying to obtain a crude fornetupitant. The method can obtain fornetupitant with a purity of more than 99.5% and a single impurity of about 0.1%.

Compositions comprising lactoperoxidase and one or more iodide salts for treating colibacillosis in bovine calves.

The invention discloses a trigonelline metformin iodized salt crystal form and a preparation method and application thereof.The preparation method comprises the following steps that nicotinoyl metformin, an organic solvent and iodomethane are evenly mixed and heated to the first temperature, a full reaction is conducted at the first temperature, and a crude product is obtained after the reaction is completed; adding the crude product into a solvent at a second temperature, uniformly mixing until the crude product is completely dissolved, then cooling to a third temperature so as to separate out a solid, and drying the solid, thereby obtaining the required trigonelline metformin iodized salt crystal form. The invention provides the novel preparation method of the trigonelline metformin iodized salt crystal form, and in combination with specific embodiments, compared with the prior art, the trigonelline metformin iodized salt crystal form prepared by the preparation method of the trigonelline metformin iodized salt crystal form is higher in yield and better in thermal stability.