31 results about "Chlorine substituent" patented technology

A photochemical reaction apparatus including a reactor and a light source situated so that light from the light source is directed through a portion of the reactor wall is disclosed. The apparatus is characterized by the portion of the reaction wall comprising a functionalized copolymer of a terminally functionalized perfluoro(alkyl vinyl ether). Also described is a photochemical reaction process using said reactor. The functional group of the copolymer of the apparatus and the process is selected from —SO₂F, —SO₂CI, —SO₃H, —CO₂R (where R is H or C1-C3 alkyl), —PO₃H₂, and salts thereof. A process for increasing the flourine content of at least one compound selected from hydrocarbons and halohydrocarbons, comprising: (a) photochlorinating said at least one compound, and (b) reacting the halogenated hydrocarbon in (a) with HF. A process for producing an olefinic compound, comprising: (a) photochlorinating at least one compound selected from hydrocarbons and halohydrocarbons containing at least two carbon atoms and at least two hydrogen atoms to produce a halogenated hydrocarbon containing a hydrogen substituent and a chlorine substituent on adjacent carbon atoms; and (b) subjecting the halogenated hydrocarbon produced in (a) to dehydrohalogenation.

A process is disclosed for reducing the mole ratio of (1) compounds of the formula Y¹Y²C═CF₂ wherein Y¹ and Y² are each independently H, F, Cl, Br, C₁-C₆ alkyl or C₁-C₆ haloalkyl containing no more than 3 chlorine substituents, 2 bromine substituents and 1 iodo substituent to (2) saturated compounds of the formula C_dH_eF_fCl_gBr_hI_k wherein d is an integer from 1 to 10, and e+f+g+h+k is equal to 2d+2, provided that g is 0, 1, 2 or 3, h is 0, 1 or 2 and k is 0 or 1 and/or unsaturated compounds of the formula Y³Y⁴C═CY⁵Y⁶, wherein Y³, Y⁵ and Y⁶ are each independently H, F, Cl, Br, C₁-C₆ alkyl or C₁-C₆ haloalkyl containing no more than 3 chlorine substituents, 2 bromine substituents and 1 iodo substituent, provided that Y⁵ and Y⁶ are not both F, and Y⁴ is C₁-C₆ alkyl or C₁-C₆ haloalkyl containing no more than 3 chlorine substituents, 2 bromine substituents and 1 iodo substituent, in a mixture. The process involves contacting the mixture with at least one selective removal agent selected from the group consisting of SO₃ and RSO₃H, wherein R is selected from the group consisting of F, Cl, OH, C₁-C₈ alkyl, C₁-C₈ fluoroalkyl, and C₁-C₈ fluoroalkoxyalkyl containing no more than two ether oxygens to selectively react the formula Y¹Y²C═CF₂ compounds.

The invention discloses a preparation method of 2-aryl-ethenylsulfonyl chloride compound, comprising the steps of using arylboronic acid, arylboronic acid ester or arylboronic acid salt as a raw material, mixing with ESF (ethenylsulfonyl chloride), palladium catalyst, an oxidant and a solvent, allowing reacting at 20-120 DEG C for 2 h and longer, separating and purifying to obtain an ethenylsulfonyl chloride product. A molar ratio of arylboronic acid (ester) and its salt, ethenylsulfonyl chloride, the palladium catalyst and the oxidant is 1:(1-10):(0.000001-0.2):(0.5-5). The preparation method has the advantages that raw materials are simple and easy to obtain, large-scale commercial supply is available for both arylboronic acid (ester) and its salt, the arylboronic acid (ester) and its salt are tolerant to most functional groups and good in reaction selectivity (both bromine and chlorine substituent on aryl are not involved in the reaction under same reaction conditions), and the preparation method has good technical potential in large-scale preparation in labs and industrial amplified production.

The invention discloses a load-typed nanometer ruthenium/carbon catalyst, which is characterized by the following: hydrogening chloride aromatic compound based on high selective catalyst under mild condition to prepare arylamine chloride without antichlorination reaction; improving receiving rate by over 99.9%.

The invention discloses a measurement method of the content of short-chain chlorinated paraffin. According to the method, an ultra-performance liquid chromatography-serially-connected quadrupole time-of-flight mass spectrometry instrument is adopted for measuring a chlorinated paraffin sample and a short-chain chlorinated paraffin standard substance, and an anion full-scanning mode is adopted formeasuring mass spectrometric data of 24 compounds in the short-chain chlorinated paraffin in which the carbon number is 10-13 and the number of chlorine substituents is 5-10; two isotope ion peaks high in abundance and accurate in mass are selected from each molecular formula to serve as feature ions, 48 isotope feature ions accurate in mass number are extracted from a total ion flow chromatogram,with the abundance of two feature ion peaks in each kind of molecular formula short-chain chlorinated paraffin compounds as qualitative reference, the total peak area of the 48 isotope feature ions is adopted for quantification, a quantification result is contrasted with the short-chain chlorinated paraffin standard substance at last, and the content of the short-chain chlorinated paraffin is calculated. The measurement method solves the problems that the measurement of the short-chain chlorinated paraffin is interfered by medium-chain chlorinated paraffin, and the short-chain chlorinated paraffin is difficult to separate from the medium-chain chlorinated paraffin; the method has the advantages of being accurate and reliable in result and high in sensitivity.

The invention discloses a synthesis method and an application of a 2-chloride, 3-poly hydroxypropyl dodecylamine quaternary ammonium salt surfactant. According to the synthesis method of the surfactant, firstly, dodecylamine and epichlorohydrin react to synthesize an intermediate with a di-chlorine substituent group, and the intermediate and N,N-dimethyl dodecylamine react to synthesize the 2-chloride, 3-poly hydroxypropyl dodecylamine quaternary ammonium salt surfactant. The method realizes synthesis of a target product with a two-step method and has the advantages that the cost is low and the surface activity of the product is high. The synthesized 2-chloride, 3-poly hydroxypropyl dodecylamine quaternary ammonium salt surfactant is applied to a combinational surfactant, and the performance of an obtained surfactant with a combined system is superior to that of a corresponding single system.

The invention discloses a cationic brush block copolymer and a preparation method as well as an application of the block copolymer. The cationic brush block copolymer of which a side chain contains biodegradable polyphosphonate is prepared by combining an ATRP (atom transfer radical polymerization) with an ROP (ring-opening polymerization) for the first time; and the preparation method comprises the following steps of: firstly, carrying out ATRP polymerization reaction on hydroxyethyl methacrylate by a micromolecle ATRP initiator, thus obtaining macromolecule with bromine or chlorine substituent at the tail end; carrying out ATRP polymerization reaction between the macromolecule serving as a macromolecular ATRP initiator and a monomer sensitive to PH to obtain a PH response diblock copolymer; and carrying out ring-opening and graft copolymerization on a ring phosphate monomer by using hydroxyl on the side group of the diblock copolymer, thus obtaining the cationic brush block copolymer of which the side chain contains polyphosphonate. The novel cationic brush block copolymer of which the side chain contains polyphosphonate has good biocompatibility and biodegradability and low toxicity, so that the block copolymer can be used as a gene vector, and has good application prospect in a biomedicine.

The invention provides a preparation method of p-hydroxyacetophenone. Chlorobenzene and acetyl chloride are used as reaction substrates; a Fries rearrangement reaction; acetyl is connected to the para-position of chlorobenzene; chlorine substituents on a benzene ring are hydrolyzed to hydroxyl groups by hydrolysis reaction, and thus the target product is obtained. The preparation method provided by the invention overcomes the problem of more byproducts o-hydroxyacetophenone in a conventional technology, and has the advantages of simple process, fewer types of used raw materials, no excessive discharge of three wastes in the post-treatment process, and good production and application prospects.

The invention belongs to the field of pesticide chemical industry, and relates to a picolinafen derivative as well as a preparation method and application thereof, the structural formula of the picolinafen derivative is shown in the specification, and the preparation method comprises the following steps: (1) preparing 2-chloro-6-carboxypyridine from 2-chloro-6-trichloromethylpyridine under the action of concentrated sulfuric acid; (2) preparing 2-chloro-6-acyl chloride pyridine from the 2-chloro-6-carboxypyridine under the action of phosphorus trichloride, phosphorus pentachloride or thionyl chloride; and (3) carrying out amidation reaction on the 2-chloro-6-acyl chloride pyridine and p-fluoroaniline, and then substituting a chlorine substituent group in the 2-chloro-6-acyl chloride pyridine and the p-fluoroaniline with N-substituted m-trifluoromethylaniline to obtain the picolinafen derivative. The picolinafen derivative disclosed by the invention has better herbicidal activity and can be used for preparing herbicides.

The invention provides a preparation method of a POSS (Polyhedral Oligomeric Silsesquioxane)-based/rare earth ion liquid fluorescent soft material. The preparation method comprises a step of preparing a rare earth hydrochloride ethanol solution and comprises the following steps: dissolving an organic ligand into absolute ethyl alcohol; then adding the rare earth hydrochloride ethanol solution and reacting to obtain a rare earth organic complex solution; putting amino POSS into excessive amount of thionyl chloride and reacting; purifying to obtain POSS with a chlorine substituent group; adding an ethanol solution of ion liquid and reacting under the protection of N2 to obtain a POSS functionalized ion liquid molecule bridge; in the POSS functionalized ion liquid molecule bridge, adding the rare earth organic complex solution and reacting to obtain the POSS-based/rare earth ion liquid fluorescent soft material. By grafting the polyhedral oligomeric silsesquioxane, the ion liquid and the rare earth organic complex with rare earth/ions through covalent bonds and the obtained POSS-based/rare earth ion liquid fluorescent soft material has a better fluorescent performance and the thermal stability is relatively improved.

The invention discloses a paper diaper capable of effectively resisting bacteria and deodorizing, and belongs to the technical field of paper diapers. The invention comprises a surface layer, a flow guide layer, toilet paper, an absorption core layer and a bottom film, and the absorption core layer is prepared from starch, polyacrylamide, a cross-linking agent, an initiator, fluff pulp, bamboo charcoal fibers, silver nitrate and an antibacterial debonding agent; citric acid and ethanolamine react to prepare an intermediate product 1, then the intermediate product 1 reacts with thionyl chloride to prepare an intermediate product 2 with four chlorine substituent groups, the single-molecule intermediate product 2 can be subjected to quaternization reaction with four-molecule N, N-dimethyl octyl tertiary amine, more nitrogen positive ions can improve the antibacterial effect of the antibacterial agent. A relatively long alkyl chain of a side chain of the antibacterial debonding agent has hydrophobicity, can reduce combination of hydrogen bonds, and is attached to the surfaces of fluff pulp fibers by utilizing an electrostatic adsorption effect to reduce a static friction coefficient between the fibers, so that the product has certain softness.

The invention relates to the technical field of preparation of asphalt, in particular to chlorine substituent modified color water-permeable asphalt which has relatively good adhesive property. The chlorine substituent modified color water-permeable asphalt is prepared from the following components in parts by weight: 100 parts of mineral aggregate, 60 to 80 parts of colored stone, 50 to 80 partsof asphalt, 70 to 90 parts of petroleum resin, 3 to 10 parts of coupling agent, 1 to 3 parts of cross-linking agent, and 0.05 to 2 parts of chlorine substituent modifier. By virtue of the technical scheme provided by the invention, chlorine atoms are introduced onto a polymer molecular chain of asphalt by virtue of the chlorine substituent modifier, so that the polarity of the polymer is improved,the compatibility of the asphalt with other substances is improved, the free energy of the surface of the asphalt is changed by virtue of a chemical combination way, and the adhesive strength betweenthe asphalt and other interfaces can be improved.