54 results about "Bromine atom" patented technology

The invention relates to the field of sealing materials, in particular to a butyl rubber sealing material and a preparation method thereof. Comprising the following components in parts by weight: 50-70 parts of butyl rubber, 30-50 parts of a brominated isobutylene-p-methylstyrene copolymer, 30-50 parts of carbon black, 8-12 parts of an alkyl phenolic resin vulcanizing agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of an anti-aging agent and 5-10 parts of a plasticizer. The butyl rubber provides ideal air tightness and heat aging resistance, bromine atoms are introduced into the brominated isobutylene-p-methylstyrene copolymer, co-vulcanization with the butyl rubber is achieved, it is ensured that a uniform and stable co-crosslinking network can be formed between the two rubber molecules, and the service life of the rubber is prolonged. The alkyl phenolic resin vulcanizing agent can form a C-C bond with high bond energy with two rubber molecules, so that the thermal aging resistance of the butyl rubber sealing material is effectively improved, the compression set is reduced, and the butyl rubber sealing material with excellent performance is prepared.

The invention relates to the technical field of power cables, and provides a flame-retardant power cable and a preparation method thereof. The flame-retardant power cable comprises a conductor, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer is prepared from, by weight, 40-60 parts of polyethylene, 60-80 parts of ethylene-vinyl acetate copolymer, 8-10 parts of compatilizer, 3-5 parts of auxiliaries, 15-20 parts of filler and 60-70 parts of flame retardant. The flame retardant is prepared from magnesium hydroxide, antimony trioxide, hydrated zinc borate and an aromatic bromine-containing compound in a mass ratio of 45: 8: 12: (25-30), and the number of bromine atoms of the aromatic bromine-containing compound is 6-8. According to the technical scheme, the problem of insufficient flame retardant property of the power cable in the prior art is solved.

The invention provides a synthesis method of a thioether ligand and a palladium-catalyzed 2-aryl indole compound, and designs an application of the biphenyl thioether ligand and a palladium catalyst in preparation of the 2-aryl indole compound. Indole and arylboronic acid are subjected to a reaction under the action of a palladium catalyst and a biphenyl sulfide ligand, and the structural formula of the biphenyl sulfide ligand is shown in the specification. Ar is phenyl, furyl, thienyl, naphthyl or phenyl substituted by one or more substituent groups; r1 is methyl, methoxyl, fluorine atom, chlorine atom, bromine atom or methyl ester group; r2 is the same or different and is methyl, ethyl, isopropyl, isobutyl, cyclohexyl, benzyl, n-butyl or n-hexyl; r3 is alkoxy, alkylthio, substituted amino or halogen; the palladium catalyst is a divalent palladium compound.

The invention discloses a preparation method of mesophase pitch regulated and controlled by plasma-assisted directional bromination and catalytic debromination, and belongs to the technical field of high-value utilization of heavy oil and preparation of advanced carbon materials. The method comprises the following steps: (1) by taking aromatic hydrocarbon-rich heavy oil as a raw material, carrying out low-temperature plasma-assisted liquid-phase bromination reaction, and directionally introducing bromine atoms on an aromatic ring as activation and orientation sites, so as to construct bromination modified linear precursor asphalt; (2) carrying out supported metal hydride catalytic debromination-directional polycondensation reaction to synchronously realize total removal of bromine atoms, linear coupling between aromatic rings and improvement of molecular planarity, so as to prepare pre-mesophase pitch; and (3) carrying out heat treatment in a strong and uniform magnetic field, and enabling the liquid crystal state molecules to be highly and orderly arranged along the direction of the magnetic field by virtue of the orientation effect of the magnetic field on the pi electron cloud, so as to finally form the spinnable mesophase pitch with a wide-area streamline structure. The method realizes full-chain accurate regulation and control from molecular structure design to macroscopic orientation, and the prepared mesophase pitch has the characteristics of high anisotropic content (greater than 98%), moderate softening point (260-300 DEG C), highly ordered molecular arrangement and low quinoline insoluble content (less than 0.1%). The process is novel, and a brand new path is provided for preparing the high-performance mesophase pitch.

The invention relates to a preparation method of alpha-bromo-carboxylic acid. The method comprises the following steps: under the protection of nitrogen, dissolving a malonic acid substrate, N-bromosuccinimide (NBS) and pyridine in a reaction solvent, and reacting for 1 hour at 50 DEG C under the irradiation of blue light; and separating the crude reaction product through column chromatography or preparative plate chromatography to obtain the target delta-bromo-carboxylic acid compound. The method has the advantages of mild reaction conditions, simple operation, easily available raw materials, low cost, and good functional group compatibility and substrate universality. In the obtained product, due to high reaction activity of bromine atoms, the bromine atoms can be further derived into various alpha-heteroatom substituted carboxylic acids, and the product has application potential in the fields of synthetic chemistry, drug research and development and the like.

A refrigerator oil composition which is used together with a refrigerant that contains an unsaturated fluorinated compound having a carbon-carbon unsaturated bond represented by general formula (I): C2FpR4-p (I) [in general formula (I), R each independently represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p is an integer of 1-3], in which R represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p represents an integer of 1-3], R represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom. A refrigerator oil composition containing a base oil (A), an epoxy compound (B), and a terpene compound (C), the epoxy compound (B) being an aliphatic epoxy compound (B1) or an alicyclic epoxy compound (B2), the total content of the epoxy compound (B) and the terpene compound (C) being 4.0 mass% or more based on the total amount of the refrigerator oil composition.

The present application relates to a kind of electrolyte additives and its preparation method, belong to electrolyte technical field;The present application uses propenyl-1,3-sulfonic acid lactone as raw material, using the double bond of propenyl-1,3-sulfonic acid lactone and the amino group of 4-amino-2-(trifluoromethyl) thiophene occurs Michael addition reaction under the catalysis of 1,8-diazabicyclo (7-ene) Undecane, obtain the intermediate with tertiary amine structure, then through the quaternary ammonium salt reaction of tertiary amine structure of intermediate and bromo atom of ethyl bromoacetate, obtain additive, the additive of the present application and phosphate ester additive are compounded to obtain electrolyte additive, the present application is modified by propenyl-1,3-sulfonic acid lactone, introduce fluorinated alkyl, effectively reduce intermolecular force, weaken the dependence of electrolyte viscosity on temperature, improve the ionic conductivity of electrolyte under low temperature condition.

The present application relates to pyrazole derivatives and their use in pesticides, in particular their use in the prevention and treatment of plant diseases caused by fungi. The structure of the pyrazole derivatives is shown in (I): wherein R1 is at least one of fluorine atom, chlorine atom, bromine atom, methyl, methoxy, difluoromethyl, trifluoromethyl, trifluoromethoxy; R2 is difluoromethyl or trifluoromethyl; X is nitrogen atom or oxygen atom. The pyrazole derivatives disclosed in the present application have good inhibitory effect on plant pathogenic fungi and can be applied to the prevention and treatment of plant diseases caused by fungi.

There is provided a method for storing fluoroalkene in which, even when stabilizers for suppressing reactions of fluoroalkene are not added, the reactions of the fluoroalkene hardly occur and the purity of the fluoroalkene hardly decreases during storage. Fluoroalkene having a bromine atom or an iodine atom in the molecule is at least one type of fluoroethylene represented by a first general formula C2HpFqXr and fluoropropene represented by a second general formula C3H3FtXu (X represents a bromine atom or an iodine atom), and contains or does not contain at least one type among manganese, cobalt, nickel, and silicon as metal impurities. When any of the foregoing is contained, the fluoroalkene is stored in a container with the total concentration of the manganese, the cobalt, the nickel, and the silicon set to 1000 ppb by mass or less.

A resist composition containing a resin component whose solubility in a development solution changes under the action of the acid and a compound represented by General Formula (d0). In the formula, Ar is an aromatic ring; Xd is an iodine atom, a fluorine atom, a bromine atom or a fluorinated alkyl group; Rd is a substituent; nd is an integer of 1 or more as long as the valence allows, and md is an integer of 0 or more as long as the valence allows; Ld is a single bond or a divalent linking group; m is an integer of 1 or more, and Mm+ is an m-valent cation

This catalyst is for use in condensation of a carboxylic acid and an amine compound having an amino group or a substituted amino group in which one hydrogen atom in the amino group is substituted with a substituent. The catalyst comprises a compound represented by general formula (1) (in the formula, R1, R2, R3, and R4 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a nitro group, an amino group, a sulfo group, an alkyl group, or an acyl group, and X1 represents a hydrogen atom, a silyl-based protecting group, a sulfonyl-based protecting group, an alkyl group, an alkenyl group, an aralkyl group, or an acyl group). This amide compound production method comprises a step for obtaining an amide compound through condensation of the carboxylic acid and the amine compound by using the catalyst.

To provide a photosensitive colored composition less liable to cause wrinkles in curing, excellent in developability and pattern forming property and having high light shielding property.SOLUTION: The photosensitive coloring composition includes a colorant (A), alkali-soluble resins (B) including photosensitive alkali-soluble resins (B1), a polymerizable compound (C), a photopolymerization initiator (D), and a heat-curable compound (E). The coloring agent (A) contains a halogenated zinc phthalocyanine pigment (A1) having an average number of halogen atoms of 10-14 in one molecule, of which an average number of bromine atoms is 8-12 and an average number of chlorine atoms is 2-5, and a metal azo pigment (A2) containing a compound represented by formula (1) or a tautomer thereof and a compound represented by formula (2).SELECTED DRAWING: Figure 1

The application provides a series of monomolecular resin photoresists based on polybenzyl bromide or polybenzyl iodine and a preparation method and application thereof, and the monomolecular resin can be used as a main body material of the photoresist. Raw materials are cheap and easy to obtain, and the synthesis process is simple. The compound provided by the application takes adamantane as a core unit, is externally connected with multiple benzyl bromide or benzyl iodine groups, and the core structure of adamantane and benzene ring and the introduction of bromine atoms or iodine atoms can maximize the sensitivity and etching resistance of the photoresist.

The embodiment of the invention discloses a pyrazole-based fund cyclic trinuclear complex, a synthesis method thereof and application of the pyrazole-based fund cyclic trinuclear complex in the field of X-ray imaging, relates to the technical field of metal-organic complex luminescent materials, and aims to overcome the defects of existing scintillator materials in practical application. According to the application of the pyrazole-based gold ring trinuclear complex in the field of X-ray imaging, the pyrazole-based gold ring trinuclear complex is used for preparing a scintillation screen material for X-ray imaging; the general structural formula of the pyrazolyl-based cyclic trinuclear complex is shown as follows: in the formula, R1, R2 and R3 are all substituent groups; the substituent group comprises at least one of methyl, ethyl, trifluoromethyl, carboxylic acid ethyl ester group, chlorine atom, bromine atom or iodine atom.

[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.)

The invention belongs to the technical field of organic pigments, and particularly relates to a phthalocyanine pigment and a preparation method and application thereof, the structure of the phthalocyanine pigment is as shown in the following general formula (1), wherein M is selected from any one of Al, Cu or Zn; z1-Z16 are respectively and independently selected from any one or more of a bromine atom, a chlorine atom, a hydrogen atom or a sulfo group; the average substitution number of the sulfo group is 0.1 to 2; the sulfo group has a structure as shown in a formula (2):-SO2-R1 (2); r1 is selected from-OH and-NHR2; r2 is selected from any one or more of alkyl, alkyl substituted by nitrogen or alkyl substituted by oxygen. The introduction of sulfo group destroys the stacking regularity of phthalocyanine molecules, and the aggregation tendency of the pigment is reduced from the molecular level, so that the phthalocyanine pigment with small particle size is obtained; the color filter prepared from the phthalocyanine pigment prepared by the invention has excellent contrast and heat resistance.

Provided are a material for a photoelectric conversion element for an imaging element, and the like, that contribute to producing a photoelectric conversion element that has a low dark current and excels in responsiveness.　A compound represented by formula (1) is used. In formula (1), R1-R13 are each independently a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a nitro group, a hydroxy group, a thiol group, an allyl group, a 6-30C monocyclic, linked, or condensed aromatic hydrocarbon group that may have a substituent, a 3-36C monocyclic, linked, or condensed heteroaromatic group that may have a substituent, or a group represented by formula (2). However, R5 and R6, and / or R7 and R8, are linked to each other to form a benzene ring, and form a group represented by formula (3).

The application provides a high-efficiency thermally activated delayed fluorescence host material and a preparation method and application thereof, belongs to the technical field of organic photoelectric materials, and is obtained by combining 5,7-dihydro-7,7-dimethylindeno[2,1-b]carbazole and 2-(3-bromophenyl)-4,6-diphenyl-1,3,5-triazine, has the advantages of simple synthesis method, easily obtained raw materials, stable material structure, easy storage, and the like. The synthesized thermally activated delayed fluorescence host material is applied to an OLED device, the bromine atom attached to the triazine fragment enhances single-triplet state exciton conversion, improves high-efficiency energy transmission to a guest light-emitting material, and thus improves device efficiency. Compared with a traditional host material CBP, the application has obvious advantages, and thus has a wide application prospect and is optimistic, and is expected to be widely applied in the fields of flat panel display and solid-state lighting.

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

Provided is a method for producing an aqueous fluoroelastomer dispersion, the production method comprising: (1) preparing a fluoropolymer-containing first aqueous dispersion by carrying out a first polymerization of fluorine-containing monomer in a container in the presence of an aqueous medium and a polymerization initiator and substantially in the absence of fluorine-containing surfactant that lacks a functional group capable of reacting by radical polymerization; (2) removing the first aqueous dispersion from the container and diluting the removed first aqueous dispersion 3- to 40-fold to prepare a second aqueous dispersion, or diluting the first aqueous dispersion in the container 3- to 40-fold to prepare a second aqueous dispersion and removing the second aqueous dispersion from the container; and (3) preparing a fluoroelastomer-containing third aqueous dispersion by carrying out, in the same container as the container in which the first polymerization was performed or in a container different from the container in which the first polymerization was performed, a second polymerization of fluorine-containing monomer substantially in the absence of fluorine-containing surfactant that lacks a functional group capable of reacting by radical polymerization and in the presence of the second aqueous dispersion, a chain transfer agent having an iodine atom or a bromine atom, and at least one selection from the group consisting of monomers that provide a crosslinkable group containing an iodine atom, a bromine atom, or a cyano group.

The present application provides a material for a photoelectric conversion element for an image pickup element, and the like, which contributes to production of a photoelectric conversion element having low dark current and excellent responsiveness. A compound represented by the following formula (1) is used. In formula (1), R 1 ~R 14 each independently is a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a nitro group, a hydroxyl group, a thiol group, an allyl group, a monocyclic, bicyclic or fused ring aromatic hydrocarbon group having 6 to 30 carbon atoms which can be substituted, a monocyclic, bicyclic or fused ring heteroaromatic group having 3 to 36 carbon atoms which can be substituted, or a group represented by the following formula (2). Among them, at least one or more of R 1 ~R 14 in formula (2) is a group represented by formula (2).

The application provides a sulfide ligand and a synthesis method of a 2-arylindole compound catalyzed by palladium, designs the application of a biphenyl sulfide ligand and a palladium catalyst in the preparation of the 2-arylindole compound. The biphenyl sulfide ligand is used in the reaction of indole and aryl boronic acid under the action of a palladium catalyst and the biphenyl sulfide ligand, wherein the structural formula of the biphenyl sulfide ligand is as follows: Ar is a phenyl, furanyl, thienyl, naphthyl or phenyl substituted by one or more substituents; R 1 is a methyl, methoxy, fluorine atom, chlorine atom, or bromine atom or methyl ester group; R 2 is a methyl, methoxy, fluorine atom, chlorine atom, or bromine atom or methyl ester group; R 3 is an alkoxy, alkylthio, substituted amino or halogen; and the palladium catalyst is a divalent palladium compound.

The application discloses a preparation method of pyraclostrobin and belongs to the technical field of pesticide synthesis. In order to solve the problems of low bromine atom utilization rate and generation of more low-concentration acid-containing wastewater in the production process of pyraclostrobin, the method is provided, which uses sodium bromide as a bromine source, controls the rate of the conversion of the sodium bromide aqueous solution into bromine and sodium chloride, and then realizes bromination in situ. After the reaction is completed, a series of post-treatments are performed to obtain o-nitrobenzyl bromide. Then, etherification and purification treatments are performed to obtain pyrazole benzyl ether (an important intermediate). Finally, reduction, acylation and methylation are performed by using mature technology, and pyraclostrobin is obtained. The sodium bromide can be directly purchased or recycled by simple recovery treatment of the waste liquid formed by the process and directly reused in the process. The method not only provides a new synthesis route for the preparation of pyraclostrobin, but also reduces the raw material cost and improves the bromine atom utilization rate under the premise of realizing the preparation of pyraclostrobin.

To provide a method for producing an organic iodine compound, by which the organic iodine compound useful as a polymerization initiator or the like can industrially advantageously be produced in good yield and in good purity.SOLUTION: The method for producing the organic iodine compound represented by general formula (II) comprises reacting a tertiary halogeno compound represented by general formula (I) with an iodide salt in the presence of a Lewis acid. (In the above formula, X represents a Cl atom or a Br 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.). EWG represents an electron-withdrawing group. ) SELECTED DRAWING: None

The invention provides an application of 2-bromine-4-methylaniline in an anti-solvent-free carbon-based perovskite solar cell and a preparation method of the 2-bromine-4-methylaniline, and belongs to the technical field of novel photovoltaic devices and functional materials. The 2-bromo-4-methylaniline used as an additive is added into the perovskite light absorption layer of the anti-solvent-free carbon-based perovskite solar cell, the molecular structure of the 2-bromo-4-methylaniline has the coordination ability of halogen atoms and the hydrophobic property of benzene rings, the bromine atoms can be combined with uncoordinated Pb < 2 + > in perovskite, and the anti-solvent-free carbon-based perovskite solar cell is obtained. Grain boundary defects are passivated, and ion migration is inhibited; the methyl substituent group can enhance the molecular hydrophobicity and improve the environmental stability of the perovskite layer. In addition, an amino functional group of the compound may participate in perovskite crystallization regulation and control, and formation of a compact and uniform film is promoted, so that the requirement of an anti-solvent-free process is met. The method is expected to break through the bottleneck of the traditional process, and large-scale production of the perovskite solar cell with high efficiency, high stability and low cost is realized.

Disclosed is a method for producing hexafluoropropene, with which a product containing hexafluoropropene is obtained by bringing a compound (A) represented by formula (A) into contact with at least one compound (B) that is selected from the group consisting of octafluorocyclobutane, pentafluoroethane, octafluoro-1-butene, and octafluoro-2-butene, and subsequently heating the resultant mixture at a reaction temperature of 780°C or higher in a reactor. In formula (A), X is a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom.　(A): CHF2-X

The present application relates to phenazine amide compounds and its application in pesticides, especially its application in preventing and treating plant diseases caused by fungi. The structure of the phenazine amide compound of the present application is shown in formula (I): wherein, X is a nitrogen atom or an oxygen atom; R is at least one of a fluorine atom, a chlorine atom, a bromine atom, a methyl group, a methoxy group, a difluoromethyl group, a trifluoromethyl group and a trifluoromethoxy group. The phenazine amide compound disclosed in the present application has a good inhibitory effect on plant pathogenic fungi, and can be applied to the prevention and treatment of plant diseases caused by fungi.

The invention discloses a 4-trifluoromethyl isoxazole compound and an electrochemical synthesis method and application, and belongs to the field of organic synthesis. The structural formula of the 4-trifluoromethyl isoxazole compound is shown in the specification; wherein R1 is one of methyl, methoxyl, a chlorine atom and a bromine atom; r2 is one of methyl, methoxyl, a chlorine atom and a bromine atom; r1 and R2 independently exist; the condition that R1 and R2 independently exist comprises that only R1 exists, only R2 exists, and neither R1 nor R2 exists. The 4-trifluoromethyl isoxazole compound prepared by the invention solves the problems of narrow reaction substrate application range, expensive reagents, complex reaction substrate synthesis, low yield and harsh reaction conditions in the traditional preparation process of the 4-trifluoromethyl isoxazole compound, has better inhibitory activity, and can be applied to preparation of antitumor drugs.

The purpose of the present invention is to provide a silicone macromonomer having a (meth) acrylic group at a high ratio at both terminals and having a quaternary ammonium cation site in a molecular chain. That is, the present invention provides a (meth) acrylic-modified silicone macromonomer having a tertiary amino group in the molecular chain represented by general formula (1). The present invention also provides a (meth) acrylic-modified silicone macromonomer having a quaternary ammonium cation site in the molecular chain represented by general formula (4), said silicone macromonomer being represented by general formula (4). (In general formulae (1) and (4), each R independently represents a group selected from the group consisting of an alkyl group having 1-10 carbon atoms, an aryl group having 6-10 carbon atoms, and an aralkyl group having 7-10 carbon atoms, each R1 independently represents a group selected from the group consisting of an alkyl group having 1-10 carbon atoms, an aryl group having 6-10 carbon atoms, and an aralkyl group having 7-10 carbon atoms, and each R2 represents a group selected from the group consisting of an alkyl group having 1-10 carbon atoms, an aryl group having 6-10 carbon atoms, and an aralkyl group having 7-10 carbon atoms. (In the formula, R1 and R2 are each independently a group selected from the group consisting of an alkyl group having 1-10 carbon atoms, a 2-hydroxyethyl group, an aryl group having 6-10 carbon atoms, and an aralkyl group having 7-10 carbon atoms, X are each independently a hydrogen atom or a methyl group, Q is a divalent organic group, a are each independently an integer of 1-400, b is an integer of 1-50, n1 are each independently an integer of 2-10, and Y is a chlorine atom, bromine atom, or iodine atom).

A thermoplastic resin including a constituent unit (A) derived from a monomer represented by general formula (1). In general formula (1), R1 and R11 each independently represent a hydrogen atom, an aryl group having 6-12 carbon atoms, or a linear or branched alkyl group having 1-4 carbon atoms, and X represents one of general formulas (a) to (d). In general formulas (a) to (d), R21 to R57 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a linear or branched alkyl group having 1-4 carbon atoms, or a linear or branched alkoxy group having 1-7 carbon atoms.