131 results about "Alkyl radicals" patented technology

The present invention relates to a device (1) for the electroplating of a hard chromium layer made of a chromium(III) compound on a surface of a substrate (2), comprising an anode (3) and an electroplating bath (4) into which the substrate (2) acting as a cathode can be introduced, wherein the electroplating bath (4) contains a Cr(III) compound and a carboxyl compound of the formula R-COOH or a salt thereof, where R is a C1-10 alkyl radical, characterized in that the anode (3) is separated from the electroplating bath (4) by a cation-selective membrane (5). The present invention further relates to a method for the electroplating of a hard chromium layer made of a chromium(III) compound on a surface of a substrate (2) in this device (1), and to an article produced by this method comprising a chromium layer.

The present invention discloses a method for preparing an indolinone compound containing a quaternary carbon center. The target compound is obtained by subjecting N-arylacrylamide to an intramolecular tandem oxidative cyclization reaction initiated by the addition of an intramolecular alkyl radical with a tertiary alkane in the presence of a copper catalyst. This novel synthetic route for indolinone compounds containing a quaternary carbon center offers advantages such as high efficiency, relatively mild reaction conditions, a wide range of substrate applicability, and high atom and step economies, and has potential applications in pharmaceutical synthesis.

The invention discloses an ultrasonic response quaternary ammonium salt polymer antibacterial agent and a preparation method thereof. The ultrasonic response quaternary ammonium salt polymer is prepared by the following steps: carrying out substitution reaction on azodiisobutylimidazoline and acryloyl chloride, then carrying out addition polymerization reaction with 4-aminomethylpiperidine, and then carrying out quaternization reaction with bromohexane. The obtained ultrasonic response quaternary ammonium salt polymer can be decomposed under the ultrasonic action to generate alkyl radicals, and has the sterilization effect. In addition, quaternary ammonium salt modification can improve the water solubility and the positive charge density of the polymer, and further improves the antibacterial performance.

The invention discloses a preparation method of an indole-3-yl alkyl malonate compound and a preparation method of the indole-3-yl alkyl malonate compound. According to the method, reaction raw materials which are economical, cheap and easy to obtain are subjected to a three-component C (sp3)-H / C (sp2)-H functionalization reaction under a mild electrochemical condition, and the indole-3-alkyl malonate compound is obtained through one-step construction. According to the method, a C (sp3)-H / C (sp2)-H functionalization regioselective pathway is adopted, and H2 is a unique theoretical byproduct. Mechanism studies show that the reaction generates alkyl free radicals through C (sp3)-H bond oxidation, the free radicals are added to C = C bonds, and single electron oxidation and C (sp2)-H functionalization cascade reaction are carried out. Compared with an existing method, the preparation method has the outstanding advantages that the raw materials are cheap and easy to obtain, the reaction substrate is wide in application range, the target product yield is high, and the atom economy of the reaction is good.

A photoelectric synthesis method for ketone compounds, the present invention relates to the field of organic photoelectric synthesis technology. The present invention solves the technical problem that existing reaction technologies are difficult to achieve in-situ activation of aromatic formic acid and direct coupling with hydrocarbons to prepare ketone compounds. The present invention continuously irradiates the reaction system and passes a constant current, uses carboxylic acid and hydrocarbons as reactants, forms chlorine radicals through an iron catalyst, and the chlorine radical intermediates extract hydrogen from the hydrocarbons to obtain an alkyl radical. At the same time, an acyl nickel compound intermediate is formed at the cathode, and then the intermediate captures the alkyl radical, and a reduction elimination process occurs to obtain a ketone product. This reaction uses the electrons provided by the current in the system as a cheap and clean oxidant, avoiding the use of an external oxidant, and the reaction operation is simple and the conditions are mild. The ketone compounds prepared by the present invention are used in the field of treatment of neurodegenerative diseases.

A composition for producing polyurethane foam contains a polyisocyanate component and a polyol component, wherein the composition additionally contains at least one organic compound V which contains at least one radical RA selected from the group consisting ofwherein * denotes the bond to the remaining portion of the at least one organic compound V, and wherein R1 are independently of one another identical or different and selected from H or branched or linear alkyl radicals having 1 to 30 carbon atoms which optionally also contain heteroatoms.

A process for the preparation of a compound of the sterically hindered alkoxyamine class is described, the process comprises the step of alkylating a sterically hindered hydroxylamine compound to a corresponding sterically hindered alkoxyamine by reacting said sterically hindered nitroxyl compound with a compound capable of producing a carbon-central alkyl radical, typically a territorial or secondary alkyl radical, the compounds capable of generating carbon-center alkyl radicals are selected from thermal radical initiators that form radical species in the temperature range of 40 DEG C to 200 DEG C, and from photoinitiators that undergo light excitation when irradiated with UV light or visible light in the range of 180 to 700 nm, in particular UV light in the range of 180 to 380 nm, the compounds capable of generating carbon center alkyl radicals are typically selected from the class of organic peroxides, azo compounds, benzoyl derivatives, benzophenone derivatives, thioxanthone derivatives, benzoin derivatives, benzoyl phosphine oxide derivatives, and the like. The invention relates to a peroxide, for example, selected from the group consisting of diacyl peroxides of formula (A), peracid esters of this formula (A), and oxalic acid peracid esters of formula (D) R-CO-O-O-Z-R (A), r-Z ''-X-CO-CO-O-O-Z''-R (D) wherein each R independently represents a primary or secondary alkyl or cycloalkyl group, preferably comprising from 1 to 15 carbon atoms, and X is oxygen-O-or peroxy-O-O-, Z represents CO or an alkylene group bonded to a quaternary carbon atom, the quaternary carbon atom being an alkylene group of formula (C) R '-C-R' (C), wherein each R'is selected from alkyl groups having 1 to 15 carbon atoms, and Z "represents the alkylene group bonded to a quaternary carbon atom having the formula (C). The described process produces the corresponding O-alkylated derivatives of the sterically hindered hydroxylamines, typically compounds of the class referred to as N-O-alkyl HALS, with very high selectivity and conversion and without the need for the use of catalysts, in particular metal catalysts.

What are described are flame retardant mixtures comprisinga) salt of a phosphinic acid of the formula (I) in which R1 and R2 are independently alkyl, cycloalkyl, aryl or aralkyl that are optionally substituted, M is an m-valent cation, and m is 1 to 4, b) salt of a phosphinic acid of the formula (II) that differs from component a) in which R3 is optionally substituted alkyl, cycloalkyl, cycloalkylalkyl, aryl or aralkyl, preferably with alkyl radicals as substituents, R4 is alkyl with an even number of carbon atoms, with the proviso that, if R1 and / or R2 are alkyl, R4 has twice, three times or four times the number of carbon atoms of R1 or R2,  M is an n-valent cation, and n is 1 to 4, c) organylphosphonate,d) phosphite,e) silicate, alumosilicate and / or silicon dioxide which is solid at 25° C.,f) a representative selected from the group of triazine complex, polyphosphate, hypophosphite, nitrogen-containing diphosphate, organophosphate, phosphazene and / or polyphosphonate,g) optionally a representative selected from the group of metal hydroxide, metal carbonate, metal borate, zinc stannate and / or intumescent additive, andh) optionally pigment.The mixtures can be used for production of flame-retardant polymer compositions comprising thermoplastic and elastomeric polymers that are of excellent suitability for production of cable sheaths or cable insulations.

The invention discloses a preparation method of a photocatalytic silicon-containing 1.1-diaryl compound, which realizes that olefin simultaneously reacts with aromatic cyanide and a silicon-boron compound to generate a silicon arylation product of olefin in the presence of photocatalysis and alkali. And reducing the aromatic cyanogen compound through a photocatalyst to generate aromatic cyanogen anion free radicals and an oxidation state. Then the alkali-silicon-boron complex is subjected to photocatalytic oxidation in an oxidation state, catalytic regeneration and cation free radicals of the alkali-silicon-boron complex are achieved, then silicon-boron bonds in the cation free radicals of the alkali-silicon-boron complex are broken to generate silicon free radicals, and the silicon free radicals and olefin are subjected to addition to generate alkyl free radicals; and finally, coupling the generated alkyl free radical with the aromatic cyanide anion free radical to generate the target olefin silicon arylation product. According to the invention, the aryl group and the silicon free radical are introduced into olefin at the same time, and are used for post-modification application of natural products and drug derivatives, and the method has the value of developing functional compounds which can be used for industrial synthesis and contain silicon groups and aryl groups.

The present invention relates to an isomerizing dehydration process for a feed comprising at least one primary monoalcohol of formula R-CH2-OH, wherein R is a nonlinear alkyl radical of general formula CnH2n+1, where n is an integer between 3 and 20. The process comprises an isomerizing dehydration step carried out in the gas phase at a weighted average temperature between 200 and 300°C, a pressure between 0.1 and 1 MPa, and a weight-hourly spatial velocity (WHV) between 1 and 25 h⁻¹, in the presence of a catalyst comprising at least one zeolite. The zeolite has at least one series of channels whose pore opening is defined by an 8-oxygen ring (8MR) and a mesoporous volume greater than or equal to 0.10 mL / g. Figure 2 to be published

The present invention describes a composition for producing polyurethane foams, comprising a polyisocyanate component and a polyol component, in which the composition additionally comprises at least one organic compound V comprising at least one group RA selected from the group consisting of: wherein * represents a bond to the remainder of the organic compound V; and wherein R1, independently of each other, are the same or different and are selected from H or branched or linear alkyl groups having 1 to 30 carbon atoms, which may also contain heteroatoms, such as preferably O and / or N.

The invention relates to the field of household appliance plastic packaging materials, in particular to a high-temperature-yellowing-resistant unsaturated polyester resin molding compound based on a nano material and a preparation method of the high-temperature-yellowing-resistant unsaturated polyester resin molding compound. The composition comprises the following components in parts by weight: 60-75 parts of unsaturated polyester resin; 25-40 parts of a low shrinkage agent; 1-3 parts of a nano material; 1-3 parts of an organic antioxidant; 3-5 parts of an internal release agent; 1-2 parts of a curing agent; 280 to 300 parts of a filler; 55 to 65 parts of chopped glass fiber; the high-temperature-yellowing-resistant unsaturated polyester resin molding compound has long-acting high-temperature-yellowing-resistant performance, cerium oxide reacts with phosphite ester at high temperature, P (I) in the phosphite ester has strong reducibility, tetravalent cerium ions in CeO2 have strong oxidizability, a complex containing Ce-P-O bonds is generated, and therefore the molding compound can be used for preparing the high-temperature-yellowing-resistant unsaturated polyester resin molding compound. Compared with single CeO2 or phosphite ester, the compound shows stronger free radical capturing capacity, and alkyl free radicals and alkoxy free radicals can be more effectively quenched; and the capability of decomposing hydroperoxide is far better than that of independent phosphite ester and cerium oxide.

The invention relates to novel agrochemical compositions comprising: a) at least one triazole fungicide; b) carbonyl containing solvent; and c) N-alkyl pyrrolidone of formula (I) wherein R1 is a straight or branched, saturated or unsaturated, substituted or unsubstituted hydrocarbon group having from 5 to 10 carbon atoms. The invention also relates to the use of a combination of the abovementioned N-alkyl pyrrolidone of formula (I) with a carbonyl containing solvent for increasing the efficacy of one or more triazole fungicide. The invention further relates to an agrochemical composition comprising: a) at least one triazole fungicide; b) a carbonyl containing solvent; c) N-alkyl pyrrolidone of formula (I) and d) an effective amount of compound of formula (II) wherein R2 is linear or branched, saturated or unsaturated alkyl radical having from 14 to 20 carbon atoms; or R2 is linear or branched, saturated or unsaturated acyl radical having from 14 to 20 carbon atoms; or any combination thereof, Z is selected from oxygen or nitrogen atom, m is an integer equal to 2, n is an integer equal to 3, x is an integer of from 3 to 50 and y is an integer of from 0 to 50. The invention relates to the use of a compound of formula (II) for increasing the efficacy of one or more triazole fungicide; and to a method of treating plants or plant parts with a combination of one or more triazole(s) fungicide with compound of formula wherein the compound of formula (II) is for increasing the efficacy of the one or more triazole(s).

The present invention relates to a urea-urethane composition comprising (a) at least one urea-urethane compound with a least one terminal group of formula (I) wherein R1 is a radical selected from the group consisting of C4 to C32 alkyl, C4 to C22 alkenyl, C5 to C12 cycloalkyl, C7 to C24 aralkyl, C6 to C24 aryl, a radical of formula R6-(O-CxH2x]y -, a radical of formula R6-[O-C(=O)-CwH2w]z - and a radical of formula R6-(O-CxH2x)y- [O-C(=O)-CwH2w]z -; R3 is a divalent group selected from the group consisting of an aromatic group and an araliphatic group; R6 is C1 to C32 alkyl; x is an integer from 2 to 4; w is an integer from 2 to 12; y and z is an integer from 1 to 20; (b) at least one aprotic solvent and (c) at least one alkyl ammonium salt, whose alkyl radicals independently of another is unsubstituted or hydroxy-substituted, a process for preparing the composition and the use of said composition in coating compositions as a thixotropic agent for coating formulations.

A method for producing a melt-kneaded composition comprising a step of performing melt-kneading of 3-methyl-1-butene polymer and an alkyl radical scavenger, in which the melt-kneading is performed at 300 to 380 °C, and in which the melt-kneading is performed by injecting an inert gas into a melt kneader or the melt-kneading is performed by degassing the inside of the melt-kneader under reduced pressure, and a melt-kneaded composition.

The present invention relates to the use of a fluid lubricant base comprising at least one biosourced and biodegradable compound having formula (I) in order to lubricate devices and / or machines, such as wind turbines, wherein said at least one compound having formula (I) corresponds to formula (I) in which R1, R2 and R3 are, independently, linear or branched saturated hydrocarbon groups comprising at least 16 carbon atoms, at least one group among R1, R2 and R3 comprises, on the hydrocarbon chain thereof, at least one ester group O—CO—R4, where R4 is a linear or branched alkyl radical comprising from 1 to 10 carbon atoms, preferably from 1 to 6 carbon atoms. The lubricant base has an acid number, in mg KOH / g measured according to the standard ISO 6618, which ranges from 0 to 0.5. The present invention further relates to a method for manufacturing the lubricant base as defined above and to the lubricant base thus obtained.

The invention belongs to the field of medicinal chemistry, and relates to an optically active amine derivative as well as an asymmetric alkylation synthesis method and application thereof. According to the free radical type asymmetric C (sp3)-H alkylation synthesis method, methylation or ethylation modification is carried out on ortho-position C (sp3)-H bonds of substrate nitrogen atoms by adopting a light / nickel concerted catalysis system, taking peroxide as an alkyl free radical source and taking hexafluoroisopropanol (HFIP) as a solvent, a quaternary carbon three-dimensional center is successfully constructed, and thus a series of optically active amine derivatives are efficiently constructed. The optically active amine derivative has a structure as shown in the following general formula (I): # imgabs0 # dotted line represents bond connection or no bond connection; each Z is independently selected from CR1 or N; r is selected from methyl or ethyl; y1 is selected from H or # imgabs1 # or # imgabs2 #; Y2 is selected from H or # imgabs3 #; Y3 is selected from H or # imgabs4 # or # imgabs5 #; X is selected from O, S or NH; # imgabs6 # represents a connection site, and C * represents chiral carbon and comprises R and S configurations.

A catalyst component for the polymerization of olefins obtained by a process comprising: (a) reacting in an inert hydrocarbon suspension medium a Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with a tetravalent transition metal compound having at least a Metal-halogen bond, used in amounts such that the molar ratio metal / Mg is from 0.05 to 5, thereby obtaining a solid reaction product dispersed in a hydrocarbon slurry and (b) contacting the product obtained in (a) with ethylaluminum dichloride.

The present invention relates to a component of a car or motorcycle, comprising a metal substrate and a coating for said substrate, wherein said coating comprises TiO2 and is obtainable by a sol-gel process comprising a step of applying a colloidal solution on the metal substrate of said component of a car or motorcycle, said colloidal solution being obtained from hydrolysis and condensation reactions between an inorganic precursor of TiO2 and water, said inorganic precursor of TiO2 having formula Ti(X)4, wherein the X groups, equal or different from each other, are hydrolysable groups selected from the group consisting of halogens, —OR alkoxy groups and —COOR acyloxy groups, where R is preferably a C1-C6 alkyl radical.

Sealing composition for the treatment of aluminum or aluminum alloy parts, comprising, in aqueous solution: - a silicate salt, - a functional organosilane belonging to the family of alkoxysilanes of formula: (R1-O)3 – Si – R2 (I) or (R1-O)3 – Si – (CH2)n– O – R2 (II) in which R1 represents a linear or branched alkyl radical comprising from 1 to 5 carbon atoms; n is an integer which can take the values ​​from 0 to 5; R2 represents an alkyl radical, an amine radical or an epoxy radical; and - a phosphate salt. The composition can be used in a process for sealing the porous layer of aluminum or aluminum alloy parts in which the parts are immersed in a chromium (III) / zirconium (IV) bath and then in said sealing composition.

The invention discloses a zinc porphyrin modified electrode, a preparation method of the zinc porphyrin modified electrode and application of the zinc porphyrin modified electrode in synthesis of ibuprofen from CO2 and aryl halide through electro-catalysis. According to the invention, a zinc porphyrin polymer is immobilized on carbon cloth through pre-assembly and electropolymerization, and a novel zinc porphyrin modified electrode (Zn-TPP-CC) is developed. The electrode shows excellent catalytic performance, and the ibuprofen yield is as high as 96%. Experiments show that the Zn-TPP-CC cathode effectively catalyzes an electrocarboxylation reaction and promotes the generation of alkyl radicals by forming a stable Zn-Cl intermediate, and the process is crucial to subsequent CO2 insertion, so that the total energy barrier of the reaction is remarkably reduced. Evaluation shows that 0.213 kg of CO2 can be fixed when 1 kg of ibuprofen is produced in the process, and compared with a traditional method, carbon emission is reduced by 70.1%. According to the invention, a new view angle is provided for CO2 recycling and green drug synthesis, and the potential of multiphase electro-catalysis in efficient utilization of carbon resources is manifested.

A process for the preparation of sphingosine 1-phosphate (11a) or a stereoisomer thereof, comprising the steps: (a) Conversion of L-serine (1a) to methyl ester (2a) or a salt thereof: (b) protecting the amino function of methyl ester (2a) or the salt thereof to form methyl ester (3a),: where Pg stands for a protecting group, (c) protecting the primary hydroxyl group and the amino group of methyl ester (3a) to form methyl ester (4a), where R 1 and R 2 independently of one another can be hydrogen, an optionally substituted C1-C6 alkyl radical or an optionally substituted phenyl radical, or wherein R 1 and R 2 together can form an optionally substituted C4-C7 cycloalkyl radical (d) Reduction of methyl ester (4a) to form alcohol (5a): (e) Oxidation of alcohol (5a) to form aldehyde (6a): (f) Reaction of aldehyde (6a) with 1-pentadecyne and a base to form alkyne (7a): (g) partial deprotection of alkyne (7a) to form alkyne (8a): (h) Reducing the triple bond of alkyne (8a) to a trans double bond to form alkene (9a): (i) Phosphorylating the primary hydroxyl group of alkene (9a) to form phosphate (10a): and (j) Deprotection of phosphate (10a) to form sphingosine 1-phosphate (11a): wherein the method has at least one of the following features: Oxidation of alcohol (5a) to form aldehyde (6a) using oxalyl chloride, DMSO and less than 5.5 equivalents of Hünig base, Oxidation of alcohol (5a) to form aldehyde (6a) at a temperature above -70°C, Reacting aldehyde (6a) with 1-pentadecyne and a base to form alkyne (7a) using at least 1.5 equivalents of 1-pentadecyne and / or Purification of the alkyne (7a), which is obtained after reacting aldehyde (6a) with 1-pentadecyne and a base to form alkyne (7a), by distilling off unreacted 1-pentadecyne.

The present application relates to a composition comprising, notably in a physiologically acceptable medium: (1) at least one linear fatty acid monoester of formula (I) below: [Chem 1] R1—O—R2 (I) in which R1 and R2 are linear and saturated and have, independently of each other, a number of carbon atoms greater than or equal to 20, with R1 representing an acyl radical, and R2 representing an alkyl radical, and (2) at least one anionic surfactant chosen from: —C12-C20 monoalkyl phosphates: —fatty acids containing from 14 to less than 20 carbon atoms: —mixtures thereof, and (3) at least one base that is capable of partially or totally neutralizing said anionic surfactant (2), (4) at least one vinylpyrrolidone / eicosene copolymer, and (5) at least one dyestuff, and (6) water, said composition comprising less than 5.0% by weight of wax(es) relative to the total weight of the composition, preferably less than 3% by weight of wax(es), and more particularly is free of wax.

The invention discloses a selective boron-heteroatom exchange method and application thereof, and belongs to the technical field of organic chemistry. The method comprises the following steps: by adopting Lewis base as an activating agent, promoting a compound in a formula A to generate primary alkyl free radicals under a heating condition, and then performing free radical coupling reaction with a compound in a formula B, thereby synthesizing the heteroatom substituted boron-containing compound in a formula C. According to the invention, bisphenol compounds such as catechol and the like are used as activators, so that the method has a good activation effect and wide substrate applicability, a series of heteroatom-containing borate compounds with various structures can be obtained with excellent yield, and the method has the remarkable advantages of easily available raw materials, simplicity in operation, low cost, environmental friendliness and the like. More importantly, the method can be successfully applied to construction of boron-containing carbohydrate derivatives, and provides a new synthetic approach for functional modification of carbohydrate compounds.

The application discloses an electrochemical synthesis N α A method for synthesizing azole compounds under mild electrochemical conditions through a three-component reaction of azole, aldehyde and alcohol N α In the electrolysis process, azole is oxidized into a nitrogen free radical at the anode, and aldehyde is reduced into a hydroxyalkyl free radical at the cathode, then the free radical coupling is carried out, and finally, intermolecular dehydration of alcohol is carried out to synthesize a series of azole compounds with an alkoxyalkyl group N α The reaction avoids the use of an acid catalyst, an additional oxidant and a reducing agent through a free radical active intermediate route, is low in production cost, is friendly to the environment, and is suitable for industrial large-scale production as shown by the feasibility of a kilogram-scale amplification experiment.​​​

Product containing a dyeing composition comprising a fatty acid, a non-ionic surfactant, a non-associative polymer, at least 10% by weight of one or more fatty substances, a polyol, a specific dye precursor and an oxidizing composition The present invention relates to a product for dyeing human keratinous fibers, such as hair, containing: A) a dyeing composition comprising: a) one or more fatty acids, b) one or more non-ionic surfactants, c) one or more non-associative polymers chosen from amphoteric polymers, cationic polymers and their mixture, d) at least 10% by weight of one or more fatty substances other than fatty acids, relative to the total weight of the composition, e) one or more polyols, f) one or more oxidation bases selected from para-phenylenediamine derivatives of formula (I), their addition salts,their solvates and / or the solvates of their salts: (I) in which R is chosen from: i) a (C1-C4)alkoxy(C1-C4)alkyl radical, ii) a C1-C4 hydroxyalkyl radical; g) optionally, one or more couplers, and B) an oxidizing composition comprising one or more oxidizing agents. Figure for the abstract: none,

This invention discloses a method for synthesizing β-pyridone derivatives, which is based on the photocatalytic β-C(sp) synthesis of 1-(o-iodoaryl)alkyl-1-one and cyanoaryl hydrocarbons induced by iodoaryl hydrocarbons via halogen atom transfer (XAT) and hydrogen atom transfer (HAT). 3 )-H arylation involves the generation of an aryl intermediate mediated by a diethylaminoethyl radical, followed by the formation of a distal alkyl radical intermediate from 1,5-HAT, and coupling with a cyanoaromatic hydrocarbon (the corresponding cyanoaromatic hydrocarbon radical intermediate generated via photoreduction). This method is applicable to a wide range of inactive, long-range C(sp) arylation. 3 The presence of H bonds provides a novel synthetic route for constructing derivatives such as β-pyridones. The method of this invention can be carried out at room temperature, with mild and simple reaction conditions, a wide range of substrate adaptability, and high yields of the target product.

Powder for preventing and / or treating perspiration and composition comprising same The present invention relates to a cosmetic powder, in particular for preventing and / or treating perspiration, in which the particles comprise: - at least one alkali metal metasilicate and - at least one chelating compound chosen from the phosphonic derivatives of the following formula (I): (I) where R represents an alkyl radical, linear or branched, cyclic or non-cyclic, saturated or unsaturated, comprising from 1 to 10 carbon atoms, and n represents an integer between 1 and 10, and amino acids. It also relates to the method for manufacturing said powder and the composition comprising such a powder.

A method for producing a melt-kneaded composition that includes performing melt-kneading of 3-methyl-1-butene polymer and an alkyl radical scavenger, in which the melt-kneading is performed at 300 to 380° C., and in which the melt-kneading is performed by injecting an inert gas into a melt kneader or the melt-kneading is performed by degassing the inside of the melt-kneader under reduced pressure, and a melt-kneaded composition.

The present invention discloses a method for preparing an indole-3-ylalkyl malonate compound. The method uses economical, cheap and readily available reaction raw materials, and is carried out under mild electrochemical conditions by reacting C (sp) with three components. 3 )–H / C(sp 2 )–H functionalization reaction, one-step construction to obtain indole-3-alkyl malonate compounds. This method is through C(sp 3 )‑H / C(sp 2 )-H functionalization regioselective pathway, with H2 as the only theoretical byproduct. Mechanistic studies suggest that the reaction proceeds via C(sp 3 )-H bond oxidation to generate alkyl radicals, radical addition to C=C bond, single electron oxidation and C(sp 2 Compared with existing methods, the preparation method of the present invention has the advantages of cheap and readily available raw materials, a wide range of reaction substrates, high yield of target products and good atom economy of the reaction.