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892 results about "Triflic acid" patented technology
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Triflic acid, also known as trifluoromethanesulfonic acid, TFMS, TFSA, HOTf or TfOH, is a sulfonic acid with the chemical formula CF₃SO₃H. It is one of the strongest acids. Triflic acid is mainly used in research as a catalyst for esterification. It is a hygroscopic, colorless, slightly viscous liquid and is soluble in polar solvents.
Method for continuously preparing regenerated cellulose fibre
InactiveCN101328626AReduce manufacturing costReduce the temperatureArtificial filament recoveryFibre treatmentPolymer scienceTetrafluoroborate
The invention discloses a method for continuously preparing regenerated cellulose fibers through the solvent method, comprising the following steps that: a cellulose raw material is dissolved into an ion liquid to prepare a spinning liquid; gel type regenerated cellulose fibers are obtained through spinning; and the regenerated cellulose fibers are obtained through cleaning, rear draft and drying, wherein, the ion liquid is selected from one or a plurality among the following ion liquids: a). an ion liquid with 1, 3-dialkyl imidazole as a cation and formiate radical, radical vinegar or propionate radical as an anion; and b). an ion liquid with 1-R1-3-R2- dialkyl imidazole as the cation and chlorine, bromine, iodine, formiate radical, radical vinegar, sulfate radical, nitrate radical, tetrafluoroborate radical, thiocyanate radical, hexafluorophosphate radical, p-toluenesulfonate radical or trifluoromethanesulfonic acid radical as the anion. The method has the advantages of wide technological range, mild temperature condition, adequate pressure, quick spinning speed and so on, can prepare the regenerated cellulose fibers with superior performance and complete specifications, and has low production cost, high production efficiency and wide application prospect.
Owner:INST OF CHEM CHINESE ACAD OF SCI +1
Synthesis of 5-azacytidine
InactiveUS7038038B2Amenable to scale-upAvoiding hydrolysis of the s-triazine ringBiocideSugar derivativesTrimethylsilyl trifluoromethanesulfonateCoupling
The present invention provides a method for the preparation of 5-azacytidine, wherein 5-azacytidine is represented by the structure: The method involves the silylation of 5-azacytosine, followed by the coupling of silylated 5-azacytosine to a protected β-D-ribofuranose derivative. The coupling reaction is catalyzed by trimethylsilyl trifluoromethanesulfonate (TMS-Triflate).
Owner:PHARMION
Room temperature ionic liquid containing unsaturated double bond and its prepn and application
InactiveCN1417407AGroup 5/15 element organic compoundsPulping with organic solventsSulfate radicalsTriflic acid
The room temperature ionic liquid containing unsaturated double bond has the general expressino of A+B-, where A+ contains R1 being hydroxyl with 1-4 carbon atoms and R2 containing 2-20 carbon atoms and at least one double bond; and B- is one of anions, including chlorate radical, bromate radical, iodate radical, acetate radical, sulfate radical, nitrate radical, tetrafluorobromate radical, etc. Its preparation is to mixture and react olefin halide R1X and N-alkyl imidazole to obtain ionic liquid dialkyl imidazolium halide. The present invention also relates to the application of the ionic liquid in dissolving cellulose and preparing cellulose derivative.
Owner:山东中科恒联生物基材料有限公司
Crosslinked polysaccharide, obtained by crosslinking with substituted polyethylene glycol, as superabsorbant
InactiveUS20030027787A1Improve featuresBiocideOrganic active ingredientsTriflic acidPolyethylene glycol
New crosslinked polysaccharides useful as absorbents or superabsorbents alone or in a mixture are obtained by reacting polysaccharides (preferably containing carboxylates groups) with at least one crosslinker selected in the group constituted by activated polyethylene glycols such as for example halogenated (Cl, Br, I), mesylated, tosylated, or triflated activated polyethylene glycols.
Owner:ARCHER DANIELS MIDLAND CO
Process for producing conductive polymer
A process for producing conductive polymers with excellent electrochemical strain per redox cycle is provided. A process for producing conductive polymers by an electrochemical polymerization method, wherein said conductive polymers have deformation property by electrochemical redox, said electrochemical polymerization method is a polymerization method using electrolyte including organic compounds as solvents, and wherein said organic compounds include (1) chemical bond species selected at least one from a group composed of the chemical bond consisting of ether bond, ester bond, carbon-halogen bond, and carbonate bond and / or (2) functional groups selected at least one from a group composed of functional groups consisting of hydroxyl group, nitro group, sulfone group, and nitryl group in a molecule, and said electrolyte includes anions which include trifluoromethanesulfonate ion and / or plural of fluorine atoms which bond to central atom is used.
Owner:EAMEX
Purification method of abiraterone acetate
InactiveCN102030798ASimple purification processEasy to operateSteroidsPurification methodsTriflic acid
The invention provides a purification method of abiraterone acetate. The method comprises the following steps of: reacting trifloromethanesulfonic acid serving as a salt forming reagent with crude abiraterone acetate to obtain dry and easily-purified abiraterone acetate trifluoromethanesulfonic salt with the purity of over 97 percent; and performing a free reaction on the abiraterone acetate trifluoromethanesulfonic salt without a purification step so as to obtain abiraterone acetate, wherein the purity of the abiraterone acetate obtained by the free reaction is over 97 percent. The method simplifies purification process, saves reagent and is easy to operate and suitable for industrial production.
Owner:深圳万乐药业有限公司
Covalence triazine organic polymer visible-light-driven photocatalyst and preparing method and application thereof
ActiveCN104525258AImprove stabilityMild preparation conditionsWater/sewage treatment by irradiationOrganic-compounds/hydrides/coordination-complexes catalystsAcid catalysisTriflic acid
The invention discloses a covalence triazine organic polymer visible-light-driven photocatalyst and the preparing method and application thereof and belongs to the technical field of material preparation and photocatalysis. According to the method, normal-temperature liquid-phase polymerization is adopted, para-phthalonitrile serves as the monomer, trimerization is conducted under the catalysis of trifluoromethanesulfonic acid, and then the covalence triazine organic polymer visible-light-driven photocatalyst is prepared. By means of the photocatalyst, visible-light reaction is achieved, hydrogen production through water photolysis can be achieved without obvious inactivation, and organic pollutants in waste water can be effectively degraded. The preparing condition is mild, production cost is low, yield is high, actual production requirements are met, and application potential is great.
Owner:FUZHOU UNIV
Preparation of Everolimus
The invention relates to an effective preparation method of a medicine, namely, Everolimus. The preparation method comprises: reacting rapamycin, diisopropylethylamine and 2-(tert-butyldiphenylsilyl)ethoxytrifluoromethanesulfonate at 50 to 60 DEG C in toluene, and obtaining the intermediate represented by a formula (1) by separation by column chromatography; and reacting the intermediate with hydrogen fluoride-pyridine at 0 DEG C in tetrahydrofuran, reacting at room temperature and obtaining Everolimus represented by the formula (2) by separation by column chromatography. The preparation method has the advantages that: the yield is high; and the part of rapamycin serving as an initiative raw material can be recycled.
Owner:SOUTHEAST UNIV
Cyclopentane heptan(ene) acyl sulfonamide, 2-alkyl or 2-arylalkyl, or 2-heteroarylalkenyl derivatives as therapeutic agents
The present invention provides a method of treating ocular hypertension or glaucoma which comprises administering to an animal having ocular hypertension or glaucoma therapeutically effective amount of a compound represented by the general formula I;wherein a hatched line represents the alpha configuration, a triangle represents the beta configuration, a straight line, e.g. at the 9, 11 or 15 position represents either the alpha or beta configuration, a dotted line represents the presence or absence of a double bond; a wavy line represents a cis or trans bond;X is O, S, NH or (CH2)n;n is 0 or an integer of from 1 to 4;Y is C1-C5 n-alkyl, C3-C7 cycloalkyl, phenyl, furanyl, thienyl, pyridinyl, thiazolyl, benzothienyl, benzofaranyl, naphthyl, or substituted derivatives thereof, wherein the substituents maybe selected from the group consisting of C1-C5 alkyl, halogen, CF3, CN, NO2, N(R2)2, CO2R2 and OR2;Z is (CH2)n or a covalent bond;R is C1-C6 lower alkyl or Z-CF3 or mesylate or triflate;R1 is H, R2 or COR2;andR2 is H or C1-C5 lower alkyl or 9, 11 or 15 esters thereof.
Owner:ALLERGAN INC
Radiation-sensitive resin composition
A radiation-sensitive resin composition comprising (A) an acid-dissociable group-containing polysiloxane and (B) a photoacid generator containing trifluoromethane sulfonic acid or a compound which generates an acid of the following formula (I),wherein Rf individually represents a fluorine atom or a trifluoromethyl group, and Ra represents a hydrogen atom, a fluorine atom, a linear or branched alkyl group having 1-20 carbon atoms, or a linear or branched fluoroalkyl group having 1-20 carbon atoms, a substituted or unsubstituted monovalent cyclic hydrocarbon group having 3-20 carbon atoms, or a substituted or unsubstituted monovalent cyclic fluoro-hydrocarbon group having 3-20 carbon atoms. The radiation-sensitive resin composition of the present invention exhibits superior resolution, while maintaining high transparency to radiations and high dry etching resistance. The resin composition thus can greatly contribute to the lithography process that will become more and more minute in the future.
Owner:JSR CORPORATIOON
Covalent triazine skeleton doped hybrid membrane preparation method
ActiveCN104722212AEasy and efficient preparationGood repeatabilitySemi-permeable membranesSilanesTriflic acid
A covalent triazine skeleton doped hybrid membrane preparation method comprises the steps of (1) preparation of a covalent triazine skeleton, to be more specific, the formula is organic monomer: a trifluoromethanesulfonic acid, wherein a = 5-50, the organic monomer and the trifluoromethanesulfonic acid are rapidly mixed in a microwave reactor for synthetic of CTFs material by microwave heating, the synthesis temperature is 100 to 150 DEG C, and the synthesis time is 10 to 60 minutes; (2) preparation of a hybrid membrane solution, to be more specific, the formula is b covalent triazine skeleton powder: organic matter, b = 1wt%-60wt%, the organic matter is polydimethylsiloxane, polymethylphenyl siloxane, polyimide, polysulfone and poly trimethyl silane-1-propyne; (3) preparation of the hybrid membrane on a porous carrier by a dipping method; and (4) drying of the hybrid membrane. The hybrid membrane prepared by the method has high liquid separation performance and certain gas separation performance, and the synthesis repeatability is good.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Liquid Chemical for Forming Protecting Film
ActiveUS20120017934A1Improve waterproof performanceReduce capillary forceNon-ionic surface-active compoundsOther chemical processesTrimethylsilyl trifluoromethanesulfonateCompound a
Disclosed is a liquid chemical for forming a water-repellent protecting film at least on a surface of a recessed portion of an uneven pattern at the time of cleaning a wafer having a finely uneven pattern at its surface and containing silicon at least a part of the uneven pattern. This liquid chemical contains a silicon compound A represented by the general formula: R1aSi(H)bX4-a-b and an acid A, the acid A being at least one selected from the group consisting of trimethylsilyl trifluoroactate, trimethylsilyl trifluoromethanesulfonate, dimethylsilyl trifluoroactate, dimethylsilyl trifluoromethanesulfonate, butyldimethylsilyl trifluoroactate, butyldimethylsilyl trifluoromethanesulfonate, hexyldimethylsilyl trifluoroacetate, hexyldimethylsilyl trifluoromethanesulfonate, octyldimethylsilyl trifluoroactate, octyldimethylsilyl trifluoromethanesulfonate, decyldimethylsilyl trifluoroacetate and decyldimethylsilyl trifluoromethanesulfonate.
Owner:CENT GLASS CO LTD
Graphene prepared by using edge functionalization of graphite
Disclosed is a method for producing graphene functionalized at its edge positions of graphite. Organic material having one or more functional groups is reacted with graphite in reaction medium comprising methanesulfonic acid and phosphorus pentoxide, or in reaction medium comprising trifluoromethanesulfonic acid, to produce graphene having organic material fuctionalized at edges. And then, high purity and large scaled graphene and film can be obtained by dispersing, centrifugal separating the functionalized graphene in a solvent and reducing, in particular heat treating the graphene. According to the present invention graphene can be produced inexpensively in a large amount with a minimum loss of graphite.
Owner:UNIST ULSAN NAT INST OF SCI & TECH
Two-photon fluorescent probe capable of targeting mitochondria and preparation method and application of probe
ActiveCN109970630AIntense two-photon excited fluorescenceGood aggregation-induced luminescence effectOrganic chemistryPhotodynamic therapyO-Phosphoric AcidFluorescence
The invention discloses a two-photon fluorescent probe capable of targeting mitochondria and a preparation method and application of the probe. The structure of the two-photon fluorescent probe is shown as a formula I, wherein R represents a conjugated structure, R' represents alkyl or aryl, R'' represents hydrogen, methyl or methoxy, X represents halogen anions or bi-trifluoromethane sulfonimideanions or hexafluoro-phosphoric acid anions or tetra-fluoroboric acid anions or trifluoromethanesulfonic acid anions. The compound has stronger two-photon excitation fluorescence, a good aggregation-induced luminescence effect, a great mitochondrial targeting function and excellent photoinduced singlet oxygen generation capability.
Owner:SICHUAN UNIV
Silicon-based cathode high-voltage lithium ion battery
InactiveCN106099174AImprove cycle performanceImprove cycle lifeSecondary cellsOrganic electrolytesHigh temperature storageTriflic acid
The invention discloses a silicon-based cathode high-voltage lithium ion battery which comprises a negative pole, positive pole, a diaphragm arranged between the negative pole and the positive pole and a nonaqueous electrolyte. An active ingredient of the negative pole is lithium transition metal oxide, an active ingredient of the positive pole is a substance based on Si, the diaphragm is a ceramic diaphragm, the nonaqueous electrolyte comprises a nonaqueous organic solvent, lithium salt and additives, and the additives include fluoroethylene carbonate (FEC), trifluoromethanesulfonic acid (Li SO3F3) and a dinitrile compound. Compared with the prior art, the silicon-based cathode high-voltage lithium ion battery has the advantages that due to synergistic effect generated by combined use of the three additives, an SEI film formed on the surface of an electrode is more stable and compact, and physical and chemical structural stability of the surface of a silicon-carbon cathode is improved, so that a silicon-carbon cathode battery has high high-temperature storage performance and circulating performance.
Owner:GUANGZHOU TINCI MATERIALS TECH
Process for Producing alpha Substituted Ester
InactiveUS20110213176A1Low costEffective combinationOrganic compound preparationSulfuric acid esters preparationGrignard reagentTriflic acid
There is provided a process for producing an α-substituted ester by reaction of a fluorosulfuric acid ester of α-hydroxyester with a Grignard reagent in the presence of a zinc catalyst. It is newly found that the reaction for production of α-substituted esters, in which the raw reaction substrate is limited to expensive trifluoromethanesulfonic acid esters, can proceed favorably with the use of fluorosulfuric acid esters suitable for mass-production uses. By the use of the fluorosulfuric acid ester high in optical purity, it is possible to obtain the α-substituted ester with high optical purity upon inversion of the asymmetric carbon configuration. The process of the present invention can solve all of the prior art problems and can be applied for industrial uses.
Owner:CENT GLASS CO LTD
Novel preparation method of netaglinide oxazolone
InactiveCN101638392AAtom utilization is highHigh stereoselectivityAntibacterial agentsOrganic chemistryEpoxyMorpholine
The invention discloses a novel preparation method of netaglinide oxazolone shown in the formula (IV), which comprises the following steps: under the action of a catalyst A, enabling 3-fluorine-4-morpholine phenyl isocyanate shown in the formula (I) to react with (R)-epoxy chloropropane to obtain a compound (II), wherein the catalyst A is magnesium diiodide, magnesium dibromide, magnesium dichloride, magnesium perchlorate or magnesium trifluoromethanesulfonic acid; enabling the compound (II) to react with sodium azide to obtain a compound (III); reducing the compound (III) by hydrogenation, and then, acetylating the reduced compound (III) to obtain the compound (IV). In the invention, the low-cost and environment-friendly catalyst (Lewis acid magnesium) is used for catalyzing the cycloaddition reaction of the (R)-epoxy compound and the isocyanate to establish a mother nucleus structure of the netaglinide oxazolone by one step, thus the prepared netaglinide oxazolone has high stereoselectivity, does not need rigorous operation conditions, such as low temperature, no water, no oxygen and the like, has the advantages of moderate reaction conditions, simple and convenient operation, high utilization ratio of atoms, environment protection, low production cost and the like, and is suitable for industrialized production.
Owner:ZHEJIANG UNIV OF TECH
Crosslinked polysaccharide, obtained by crosslinking with substituted polyethylene glycol, as superabsorbent
InactiveUS7365190B2Improve featuresCosmetic preparationsSugar derivativesPolyethylene glycolTriflic acid
Owner:ARCHER DANIELS MIDLAND CO
Method for Dehydrating Fatty Alcohols
A process for the production of hydrocarbons by dehydrating primary alcohols with a dehydration catalyst of trifluoromethansulfonic acid is disclosed. The hydrocarbons so produced have fewer undesired secondary reactions. Accordingly, cosmetic and cleaning compositions incorporating the hydrocarbons produced by way of the process are also disclosed.
Owner:COGNIS IP MANAGEMENT GMBH
Crosslinked polyalcohol membrana body material, method for producing the same and process of using
InactiveCN101220154AEfficient enrichmentFriendlyWater contaminantsWater/sewage treatment by reductionProtonationPolyamide
The invention relates to a main material of a crosslinking polymer film in the technical field of high molecular material and a preparation method and a using method thereof. Through Michael addition polymerization, the invention obtains hyper branched polyamide containing an end double bond. By the protonation of a tertiary amine unit, the introducing of anion ligand and thermal initiation and self crosslinking of the end double bond, the main material of the crosslinking polymer film can be prepared. The components of the material the contents of the weight percentage are as follows: 12 to 19wt percent of amide group, 17 to 29wt percent of methylene, 2 to 3wt percent of protonated tertiary amine and 52 to 66wt percent of fluoroform sulfonate radical. The material of the invention can not only efficiently enrich object dye molecules from an aqueous solution, but also can efficiently enrich precious metal ions from the aqueous solution and restore the metal ions to be internally embedded metal nanoparticles in position. The invention has simple operation and is environment friendly; therefore, the invention can be applied to the treatment of waste water containing dye, the recycling of precious metal or metal-catalyzing and other fields.
Owner:SHANGHAI JIAO TONG UNIV
Nonaqueous electrolytic solution containing magnesium ions, and electrochemical device using the same
ActiveUS20110111286A1Improve featuresManufacturing environmentAlkaline accumulatorsElectrode carriers/collectorsElectrolytic agentTriflic acid
A nonaqueous electrolytic solution containing magnesium ions which shows excellent electrochemical characteristics and which can be manufactured in a general manufacturing environment such as a dry room, and an electrochemical device using the same are provided. A Mg battery has a positive-electrode can 1, a positive-electrode pellet 2 made of a positive-electrode active material or the like, a positive electrode 11 composed of a metallic net supporting body 3, a negative-electrode cup 4, a negative electrode 12 made of a negative-electrode active material 5, and a separator 6 impregnated with an electrolytic solution 7 and disposed between the positive-electrode pellet and the negative-electrode active material. Metal Mg, an alkyl trifluoromethanesulfonate, a quaternary ammonium salt or / and a 1,3-alkylmethylimidazolium salt, more preferably, an aluminum halide are added to an ether system organic solvent and are then heated, and thereafter, more preferably, a trifluoroborane-ether complex salt is added thereto, thereby preparing the electrolytic solution. By adopting a structure that copper contacts the positive-electrode active material, the electrochemical device can be given a large discharge capacity.
Owner:MURATA MFG CO LTD
Synthesis of 5-Azacytidine
InactiveUS20060247432A1Amenable to scale-upAvoiding hydrolysis of the s-triazine ringSugar derivativesCarbohydrate active ingredientsTrimethylsilyl trifluoromethanesulfonateFuran
Owner:PHARMION
Magnesium ion-containing nonaqueous electrolyte solution and electrochemical device using the same
InactiveCN102047491AImprove featuresImprove discharge capacityPrimary cellsElectrode carriers/collectorsOrganic solventTriflic acid
Owner:SONY CORP
Triazine-containing benzoxazine, triazine-containing benzoxazine polymer, and preparation method thereof
ActiveCN102219785AIncrease contentImprove heat resistanceOrganic chemistryTriflic acidStructural formula
The invention relates to triazine-containing benzoxazine, a triazine-containing benzoxazine polymer, and a preparation method thereof. The preparation method is characterized by: adopting cyanophenol as a raw material; adopting trifluoromethanesulfonic acid or trifluoroacetic acid as a catalyst; synthesizing triazine-containing trihydric phenol (TP for short) in dichloromethane or chloroform or acetone at a common temperature; adopting the synthesized TP, formaldehyde and aminated compounds as reaction raw materials; adopting a alkali as the catalyst, and carrying out a reaction in a alcohol solvent or a ether solvent to synthesize a series of triazine-containing polycyclic benzoxazine monomers (BZ for short) which have not been reported; heating the BZ to carry out a ring-opening polymerization to form polybenzoxazine (PBZ for short). A structural formula of the monomer BZ is shown as follow, substituents R are shown in the specification. The synthesized novel monomer provided by the present invention contains a triazine ring structure, such that the triazine content in the PBZ resin can be substantially raised so as to notably improve heat resistance, residual carbon rate, fire resistance property and wave transmission property of the PBZ.
Owner:SHANDONG UNIV
New green synthesizing process for ketocoumaran compound
The invention discloses a new green synthesizing process for a ketocoumaran compound. The synthesizing process comprises the following steps: in the absence of a solvent, performing condensation reaction of a mandelic acid compound and hydroquinol under the action of a little amount of acid catalyst to obtain a full condensed intermediate, wherein the acid catalyst is selected from one of 10 to 37 percent concentrated hydrochloric acid, 60 to 98 percent concentrated sulfuric acid, fuming sulfuric acid, 80 to 98 percent phosphoric acid, polyphosphoric acid, p-toluenesulfonic acid, trifloromethanesulfonic acid, benzoic acid, ammonium acetate, ammonium chloride, KF, TiC14, NiCl2, CuSO4, Cu(OAc)2, ZnCl2, AlCl3, Fe(NO3)3, FeCl3 and SnCl2; and performing oxidation reaction of full condensed intermediate under the action of an oxidant to obtain a final product ketocoumaran compound. The synthesizing process of the invention is simple, and has low energy consumption and little environmental pollution.
Owner:ZHEJIANG UNIV OF TECH
Covalent triazine framework material with rich defects, and preparation method and application thereof
ActiveCN110252249AAbundant adsorption active sitesThe preparation method is simple and environmentally friendlyOther chemical processesWater contaminantsSorbentHigh energy
A preparation method of a covalent triazine framework material with rich defects comprises the following steps: mixing 1,4-dicyanobenzene with 4,4-biphenyldicarbonitrile, adding trifluoromethanesulfonic acid, performing stirring in a -5-5 DEG C environment under the protection of an inert gas for 1-2 h, raising the temperature to 80-120 DEG C, keeping the temperature for 10-30 min to obtain a transparent solid substance, grinding the transparent solid substance by a mortar, washing the ground solid with ethanol and water, and drying the washed solid to obtain the material. A manner for introducing a defect into a covalent triazine framework is provided by the invention to make the covalent triazine framework have rich adsorption active site, so the obtained material can be used as a highly active adsorbent. The material used as the adsorbent has the advantages of green and environmentally friendly preparation method and low cost; and the material contains rich defect sites as high energy sites for adsorbing pollutants, so the covalent triazine framework can adsorb aromatic substances at a very high adsorption rate and a very high adsorption capacity.
Owner:ZHEJIANG UNIV OF TECH
Immobilized ionic liquid catalyst and application thereof
InactiveCN106391112AHigh catalytic activityNot easy to inactivateOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsTetrafluoroborateTriflic acid
The invention relates to an immobilized ionic liquid catalyst and application thereof. The immobilized ionic liquid catalyst has a general structural formula as defined in the specification. In the general structural formula, P is a nanogel resin matrix; n is an integer in a range of 2 to 12; and M<-> is a negative ion selected from a group consisting of a trifluoromethanesulfonate group, a p-toluenesulfonate group, a benzenesulfonate group, a methanesulfonate group, a tetrafluoroborate group and a hexafluorophosphate group. The immobilized ionic liquid catalyst can be applied to industrial olefine acid addition for preparation of corresponding esters.
Owner:CHINA PETROLEUM & CHEM CORP +1
Lithium ion battery electrolyte and lithium ion battery
InactiveCN105449275AImprove securityImprove thermal stabilitySecondary cells servicing/maintenanceTriflic acidSulfonyl fluoride
The invention discloses a lithium ion battery electrolyte and a lithium ion battery. The lithium ion batter electrolyte comprises non-aqueous organic solvent, lithium salt, a functional additive, a flame-retardant additive and a negative electrode film-forming agent. According to the scheme of the lithium ion batter electrolyte, perfluoroalkyl diphenyl sulfide is used as the functional additive on the basis of reasonably optimizing the non-aqueous organic solvent, the lithium salt and the negative electrode film-forming agent; the problem that the novel lithium salt corrodes an aluminium current collector can be effectively solved, wherein the novel lithium salt comprises lithium trifluoromethanesulfonate (LiCF3SO3), perfluoroalkyl sulfonyl lithium methide (LiC (CF3SO2)3, bi(trifluoromethyl sulfonyl) lithium imide (LTFSI), bi(sulfonyl fluoride) lithium imide (LiFSI) and the like; the cycling performance of the lithium ion battery is improved; the LiPF6 can be well replaced by the lithium ion battery electrolyte, and the lithium ion battery electrolyte can be widely applied to the secondary lithium ion battery electrolyte, and particularly suitable for lithium ion power batteries for improving the thermal stability of the lithium ion power batteries.
Owner:OPTIMUM BATTERY CO LTD
Method for catalyzing alcohol acid esterification using ion liquid
InactiveCN1880295AReduce dosageHigh catalytic efficiencyOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsSulfate radicalsTriflic acid
This invention discloses a method for catalyzing alcohol acid esterification by using an ionic liquid. The ionic liquid A+B- is used as catalyst and solvent, wherein: A+ has the following structural formula, and R could be an alkyl group or alkene group with more than one carbons; B- is selected from the following negative ions: chlorin, bromine, iodine, acetate, sulfate radical, hydrogensulfate radical, phosphate radical, hydrogen phosphate radical, nitrate radical, tetrafluoroboric radical, hexafluorophosphoric radical, p-toluenesulfonic radical, and trifluoromethanesulfonic radical; the catalyst amount added is 0.01%-50% of the total mole of the alcohol and acid added, reaction temperature 20-140Deg C, normal pressure reaction time 0.5-12h.
Owner:GUANGDONG UNIV OF TECH
Morpholine quaternary ammonium salt ion liquid and preparation method thereof
InactiveCN101157667AImprove thermal stabilityEasy to manufactureOrganic chemistryTetrafluoroborateNitrate
The invention relates to a morpholine quaternary ammonium salt ionic liquid and a preparation method. The ionic liquid has the following structural general formula: A +B-, wherein, the A+ has the structural general formula as the right, in the general formula: R1 is the saturated or unsaturated alkyl containing 1 to 4 carbon atoms, and the R2 is in line with the following rules: a) at least 2 carbon atoms are contained; b) not more than 20 carbon atoms are contained; the B- is selected from one the following anions: chlorine, bromine, iodine, acetate, sulfate, nitrate, tetrafluoroborate, thiocyanate, hexafluorophosphate, p-toluenesulfonic and trifluoromethanesulfonic.
Owner:TIANJIN POLYTECHNIC UNIV
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