11 results about "Alkyl nitrile" patented technology

The invention discloses a preparation method of a chiral fluorine-containing alkyl nitrile compound, and particularly provides a preparation method of a compound shown as a formula III. The preparation method provided by the invention can realize common terminal olefin asymmetric fluorine-containing alkyl cyanidation reaction, and has one or more of the following advantages: mild reaction conditions, good regioselectivity, high enantioselectivity, wide substrate universality and good functional group compatibility.

Electrolyte formulations for lithium-ion batteries are disclosed that enable high-voltage operation, improved cycle life, reduced impedance, and enhanced safety. The formulations comprise an aprotic organic solvent, a lithium salt, and an epoxide functionalized organic compound, and may further include additives such as organosulfur compounds, alkyl nitriles, fluorinated aliphatic esters, cyclic carbonates, partially fluorinated phenyl phosphate esters, and fluorinated cyclic phosphazenes. These components synergistically stabilize the cathode electrolyte interface (CEI), mitigate oxidative decomposition at elevated voltages, and impart flame-retardant properties. Electrochemical energy storage devices incorporating these formulations exhibit superior performance under high-voltage and high-temperature conditions, making them suitable for applications such as electric vehicles, aerospace systems, and grid storage.

The present invention provides a secondary battery including a positive electrode active material, a negative electrode active material, and a non-aqueous electrolyte solution, and having a charging voltage of not less than 4.45 V. The non-aqueous electrolyte comprises an electrolyte salt, a non-aqueous organic solvent and an additive, and the non-aqueous organic solvent at least comprises carbonic ester. The additive comprises a compound A and a compound B, the structural formula of the compound A is shown as a structural formula I, and the structural formula of the compound B is shown as a structural formula II or a structural formula III. Wherein R1 is selected from hydrogen, substituted or unsubstituted C1-C6 alkyl groups, R2 is selected from hydrogen, substituted or unsubstituted C1-C6 alkyl groups and nitrile groups, R3 is selected from nitrile groups, C1-C6 alkyl ether groups, substituted or unsubstituted C1-C6 alkyl groups and substituted or unsubstituted acylamino groups, R4, R5, R6, R7, R8 and R9 are respectively and independently selected from hydrogen, substituted or unsubstituted C1-C6 alkyl groups, and R is a chain-shaped tertiary amino group or a cyclic tertiary amino group. The secondary battery still has better high-temperature storage performance and high-temperature cycle performance under high voltage of 4.45 V and above. The structural formula I, the structural formula II and the structural formula III are shown in the description

The invention provides a catalyst for preparing amines through nitrile reduction as well as a preparation method and application of the catalyst. The catalyst comprises a catalytic active component and a catalyst carrier for loading the catalytic active component, wherein the catalytic active component comprises a main catalytic active component, and the main catalytic active component is cobalt oxide and / or nickel oxide; the catalyst carrier is formed by compounding aluminum oxide and carbon nanotubes. According to the catalyst for preparing amines through nitrile reduction, cobalt oxide and / or nickel oxide are / is used as catalytic active components, aluminum oxide and carbon nanotubes are compounded to serve as a carrier of the catalyst, preparation of amines through nitrile reduction can be efficiently achieved, and especially for the reaction of preparing linear alkyl amines through linear alkyl nitrile with a long carbon chain, the reaction efficiency is greatly improved, and the catalyst is suitable for industrial production. The effect is excellent. The catalyst also remarkably reduces the production cost and the equipment corrosion risk in the process of preparing straight-chain alkylamine from alkyl nitrile with a relatively long carbon chain, and provides a brand new idea for green and sustainable synthesis of long straight-chain amine substances such as n-octylamine and the like.

The present invention provides a fluorescent whitening agent or optical brightener of formula (I) wherein: A is C(R1R2)(CH2)n or an optionally substituted aromatic or heteroaromatic ring fused with N and X wherein N and X are respectively bound to adjacent carbon atoms on the ring; X is O, S, or NR3; B is an optionally substituted heterocycle; and wherein: when A is C(R1R2)(CH2)n, R1 is H, CH2OH, COY, or an optionally substituted heterocycle, R2 is H, or CH2OH and wherein n is 1 or 2; Y (when present) is independently OM, OR3, O(CH2)qSO3M, NHOH, NHR3, or NR3 2, wherein, M is selected from an alkali metal or an alkaline earth metal, and q is 1 to 5; and the or each R3 is independently hydrogen, a linear or branched alkyl, a linear or branched alkenyl, an aryl, a heterocycle, an alkaryl, an aralkyl, a linear or branched alkyl carboxylic acid, a linear or branched alkyl carboxylate, a linear or branched alkyl nitrile, a linear or branched alkyl alcohol, a linear or branched alkyl alcohol polyol, an acyl, a hydroxyalkylamine, a linear or branched alkylamine, a polyhydric alcohol, a sugar, a linear or branched alkyl ether, a linear or branched polyether, a polyester having from 2 to 1000 repeat units, or a polyoxyalkylene chain having from 2 to 1000 repeating units, and alternatively, NR3 2 represents a heterocyclic ring, e.g. morpholine. Also provided are formulations, compositions and uses thereof.

The invention relates to the technical field of batteries, in particular to an electrolyte, a battery monomer, a battery device and an energy storage device. The electrolyte provided by the invention comprises a first additive, and the first additive comprises a fluorosulfonamide compound and an isocyanate compound, r1 and R2 respectively and independently comprise one of hydrogen, fluorine, substituted or unsubstituted alkane, substituted or unsubstituted alkylene, substituted or unsubstituted alkyne, substituted or unsubstituted alkyl carbonyl and substituted or unsubstituted alkyl nitrile, and at least one of R1 and R2 contains a fluorine element; and R3 comprises one of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkyl carbonyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group and a substituted or unsubstituted heterocyclic group. Under the synergistic effect of the fluorosulfonamide compound and the isocyanate compound, the electrolyte has good stability and is not easy to decompose.

This invention belongs to the technical field of organic synthesis and discloses a method for synthesizing 1,n-dianitronic compounds. The method involves reacting alkenyl-substituted alkyl nitriles and boric acid compounds in an air atmosphere using an organic solvent as the reaction medium, under the action of a weakly basic salt and a catalyst, to obtain 1,n-dianitronic compounds. The structure of the 1,n-dianitronic compounds is as shown in Formula I. This method utilizes readily available raw materials, offers high yield, has broad substrate applicability, is simple to operate, and boasts high atom economy, enabling the construction of structurally diverse polysubstituted 1,n-dianitronic compounds.

The invention discloses a cyclobutanone oxime ester compound, a preparation method thereof and application of the cyclobutanone oxime ester compound in a preparation method of an alkyl nitrile compound containing a quaternary carbon center. The cyclobutanone oxime ester compound disclosed by the invention has a structure as shown in a formula I, wherein R1 and R2 are independently selected from C1-6 alkyl, naphthyl, phenyl, phenyl substituted by at least one of C1-6 alkyl, C1-6 alkoxy and phenyl, and C3-20 heteroaryl. According to the present invention, the cyclobutanone oxime ester compound and the aryl amine compound are adopted as the raw materials to prepare the quaternary carbon center-containing alkyl nitrile compound, such that the high yield is provided, the gram-level amplification experiment can be performed, and the method does not need the oxidizing agent or the high temperature and high pressure condition;

A process for producing dinitrile comprises supplying a C6 organic compound, an oxidizing agent, ammonia and a diluent to a reaction zone to produce a reaction mixture and contacting the reaction mixture in the reaction zone with a heterogeneous catalyst at a temperature from 50 to 200° C. to convert at least a portion of the C6 organic compound to dinitrile and water and produce a reaction effluent. At least part of the reaction effluent is supplied to a separation system to separate at least dinitrile and unreacted ammonia from the reaction effluent and additional water is supplied to a portion of the reaction effluent prior to or during separation of unreacted ammonia from the reaction effluent.

This invention relates to an electrochemical synthesis method for α,β-diarylamide compounds, comprising: mixing an aryl diazonium salt, an aryl olefin, an electrolyte, an alkyl nitrile, and water to obtain a reaction system; and subjecting the reaction system to an electrocatalytic reaction to synthesize α,β-diarylamide compounds. This invention utilizes an electrochemical synthesis method to obtain α,β-diarylamide compounds, eliminating the need for expensive ruthenium catalysts. The synthesis strategy is economical and efficient, meeting the requirements of green chemical engineering development. Furthermore, gram-scale experiments have fully verified the industrial applicability of this invention.

The present application relates to a kind of ammonia oxidation catalyst and its preparation method and m-xylene gas phase ammonia oxidation coproduction m-methylbenzonitrile and m-phenyldicyanide method.The catalyst includes carrier and active component, active component element includes: vanadium, bismuth and boron, the active component includes BiVO4 Crystal, and the ratio of the intensity of main diffraction characteristic peak attributed to V2O5 And / or Bi2O3 With the intensity of main diffraction characteristic peak attributed to BiVO4 In the XRD spectrum of the catalyst, it is 0-0.15:1.The catalyst has the characteristics of being able to realize the coproduction of m-alkylbenzonitrile and m-phenylalkylnitrile, and high activity and high selectivity.