播放中国国产国语纯一级黄片免费看, 大鸡吧快来啊阿啊阿啊黄片在线播放, 中文精品日韩网站在线观看视频免费, 别揉我奶头~嗯~啊~一区二区三区,AV无码播放一级毛片免费古装,亚洲春色一区二区三区,91大神极品,美国一级大黄一片免费下载,午夜爽爽爽男女免费观看软件

Welcome to LookChem.com Sign In|Join Free

CAS

  • or
Sodium trifluoroacetate is a white crystalline powder that serves as a versatile reagent in various chemical reactions and processes. It is known for its effectiveness in acid-catalyzed reactions and is also utilized as an intermediate for the synthesis of active pharmaceutical ingredients (APIs). Additionally, it acts as a precursor in the trifluoromethylation of aldehydes, using copper(I) halide as a catalyst.

2923-18-4

Post Buying Request

2923-18-4 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

2923-18-4 Usage

Uses

Used in Acid-Catalyzed Reactions:
Sodium trifluoroacetate is used as a catalyst in acid-catalyzed reactions, providing a mild and efficient alternative to traditional strong acids. Its use in these reactions is attributed to its ability to facilitate the formation of desired products without causing unwanted side reactions or degradation of the reactants.
Used in Pharmaceutical Industry:
Sodium trifluoroacetate is used as an intermediate for the synthesis of active pharmaceutical ingredients (APIs). Its role in the pharmaceutical industry is crucial, as it aids in the development of new drugs and the improvement of existing ones. The use of sodium trifluoroacetate in this context is due to its ability to enhance the reactivity and selectivity of certain chemical reactions, leading to the production of more effective and safer medications.
Used in Trifluoromethylation of Aldehydes:
Sodium trifluoroacetate acts as a precursor in the trifluoromethylation of aldehydes, a process that involves the introduction of a trifluoromethyl group (CF3) to an aldehyde molecule. This reaction is facilitated by the use of copper(I) halide as a catalyst. The trifluoromethylation of aldehydes is an important synthetic strategy in the preparation of various organic compounds, including pharmaceuticals, agrochemicals, and advanced materials. The use of sodium trifluoroacetate in this process is due to its ability to provide a stable and easily accessible source of the trifluoromethyl group, enabling the formation of a wide range of valuable products.

Purification Methods

A possible contaminant is NaCl. The solid is treated with CF3CO2H and evaporated twice. Its solubility in CF3CO2H is 13.1% at 29.8o. The residue is crystallised from dilute EtOH, and the solid is dried in vacuum at 100o. [Hara & Cady J Am Chem Soc 76 4285 1954.] It can be precipitated from EtOH by adding dioxane, then recrystallising several times from hot absolute EtOH. Dry it at 120-130o/1mm. [Beilstein 2 IV 461.]

Check Digit Verification of cas no

The CAS Registry Mumber 2923-18-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,2 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2923-18:
(6*2)+(5*9)+(4*2)+(3*3)+(2*1)+(1*8)=84
84 % 10 = 4
So 2923-18-4 is a valid CAS Registry Number.
InChI:InChI=1/C2HF3O2.Na/c3-2(4,5)1(6)7;/h(H,6,7);/q;+1/p-1

2923-18-4 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • TCI America

  • (T1336)  Sodium Trifluoroacetate  >98.0%(T)

  • 2923-18-4

  • 25g

  • 195.00CNY

  • Detail
  • TCI America

  • (T1336)  Sodium Trifluoroacetate  >98.0%(T)

  • 2923-18-4

  • 100g

  • 590.00CNY

  • Detail
  • TCI America

  • (T1336)  Sodium Trifluoroacetate  >98.0%(T)

  • 2923-18-4

  • 500g

  • 1,790.00CNY

  • Detail
  • Alfa Aesar

  • (A14613)  Sodium trifluoroacetate, 98%   

  • 2923-18-4

  • 25g

  • 339.0CNY

  • Detail
  • Alfa Aesar

  • (A14613)  Sodium trifluoroacetate, 98%   

  • 2923-18-4

  • 100g

  • 936.0CNY

  • Detail
  • Alfa Aesar

  • (A14613)  Sodium trifluoroacetate, 98%   

  • 2923-18-4

  • 500g

  • 4285.0CNY

  • Detail
  • Fluka

  • (17840)  Sodiumtrifluoroacetate  for HPLC, ≥99.0%

  • 2923-18-4

  • 17840-10G

  • 1,490.58CNY

  • Detail
  • USP

  • (1615138)  Sodiumtrifluoroacetate  United States Pharmacopeia (USP) Reference Standard

  • 2923-18-4

  • 1615138-500MG

  • 5,941.26CNY

  • Detail
  • Aldrich

  • (132101)  Sodiumtrifluoroacetate  98%

  • 2923-18-4

  • 132101-25G

  • 348.66CNY

  • Detail
  • Aldrich

  • (132101)  Sodiumtrifluoroacetate  98%

  • 2923-18-4

  • 132101-100G

  • 989.82CNY

  • Detail

2923-18-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name sodium,2,2,2-trifluoroacetate

1.2 Other means of identification

Product number -
Other names Sodium trifluoroacetate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2923-18-4 SDS

2923-18-4Relevant articles and documents

A novel approach to RE-OR bond from in situ reaction of rare earth triflates and sodium alkoxides: A versatile catalyst for living ring-opening polymerization of ε-caprolactone

You, Lixin,Shen, Zhiquan,Kong, Jie,Ling, Jun

, p. 2404 - 2410 (2014)

A series of rare earth triflates (RE(OTf)3, RE = Sc, Y and Lu) were used for the first time as moisture-stable precursors to generate rare earth alkoxide complexes through an in situ reaction with sodium alkoxides (NaOR) in tetrahydrofuran. 1H NMR and 13C NMR results confirmed the fast ligands exchange process and the formation of rare earth-oxygen (RE-OR) bond. The in situ formed catalysts displayed high reactivity toward living ring-opening polymerization (ROP) of ε-caprolactone (CL). For instance, Lu(OTf)3/sodium isopropoxide (NaOiPr)-catalyzed ROP of CL with the [CL]0/[NaO iPr]0/[Lu(OTf)3]0 feeding ratio of 300/3/1 produced poly(ε-caprolactone) (PCL) with controlled molecular weight (Mn,exp = 11.9 kDa vs Mn,theo = 11.8 kDa) and narrow polydispersity (PDI) of 1.08 within 3 min at 25°C. The kinetic studies and chain extension confirmed the controlled/living nature for the Lu(OTf)3/NaOiPr-catalyzed ROP of CL. In addition, end-functionalized PCLs bearing vinyl or alkynyl group with narrow PDIs were obtained by using functional sodium alkoxides in the presence of Lu(OTf) 3. 1H NMR and MALDI-ToF MS analyses of the obtained PCLs clearly indicated the presence of the residue of OR groups at the chain ends. A coordination-insertion polymerization mechanism was proposed including a fast ligand exchange between Lu(OTf)3 and NaOR giving the respective lutetium alkoxide complexes, and a CL insertion into RE-OR bond via acyl-oxygen cleavage.

Electrochemical trifluoromethylation of isonicotinic acid hydrazide using cyclic voltammetry and galvanostatic electrolysis

Raja Beryl,Joseph Raj

, p. 2098 - 2105 (2018)

Trifluoromethylation of isonicotinic acid hydrazide has been investigated in trifluoroacetic acid containing pyridine, triethylamine and sodium trifluoroacetate dissolved in acetonitrile on platinum and glassy carbon electrodes using cyclic voltammetry. L

New method of beta-NaYF4: Yb3+, Er3+ synthesis by using beta-cyclodextrin

Fedorova, Anna A.,Fedulin, Andrey I.,Morozov, Igor V.

, p. 173 - 177 (2015)

Abstract The novel method of synthesis of the hexagonal modification beta-NaYF4 doped with Yb3+ (17 at.%) and Er3+ (3 at.%) using beta-cyclodextrin is proposed. Complex fluorides were prepared by decomposition of the mixture of metal fluoroacetates hydrates with and without addition of beta-cyclodextrin and were investigated by X-ray diffraction, energy dispersive X-ray analysis, scanning and transmission electron microscopy. The samples prepared by adding beta-cyclodextrin in the reaction mixture are single phase and have a hexagonal structure. At the same time, decomposition of the mixture of metal trifluoroacetates hydrates without beta-cyclodextrin is accompanied by pyrohydrolysis, leading to a contamination of the products by impurities of yttrium oxyfluorides and sodium fluoride. So a new synthetic approach proposed in this work allows to obtain pure complex fluorides with homogeneous distribution of elements and with homogeneous pore distribution.

Strategic synthesis of [Cu2], [Cu4] and [Cu5] complexes: inhibition and triggering of ligand arm hydrolysis and self-aggregation by chosen ancillary bridges

Das, Manisha,Canaj, Angelos B.,Bertolasi, Valerio,Murrie, Mark,Ray, Debashis

, p. 17160 - 17176 (2018)

The Schiff base ligand HL1 ({2,6-bis(allylimino)methyl}-4-methylphenol) having no coordinating donor arm has been examined for its reaction medium and ancillary bridge dependent reactivity for a hierarchical family of CuII complexes. The ligand showed a unique reactivity pattern toward CuII in solution. The bridging nature of in situ generated HO? ions in the absence and presence of externally added carboxylates (RCOO?; R = CF3, C6H5 and CH3) has been utilized to produce complexes {[Cu2(μ-L2)2(H2O)]2[Cu2(μ-L2)2(H2O)2](ClO4)6} (1) (HL2 = 3-{(allylimino)methyl}-2-hydroxy-5-methylbenzaldehyde), [Cu4(μ4-O)(μ-L1)2(μ1,3-O2CCF3)4] (2), [Cu4(μ4-O)(μ-L1)2(μ1,3-O2CC6H5)4]·H2O (3), and [Cu5(μ3-OH)2(μ-L1)2(μ1,3-OAc)2(OAc)2(H2O)4][Cu5(μ3-OH)2(μ-L1)2(μ1,3-OAc)2(OAc)3(H2O)](ClO4)3·2C2H5OH (4). The absence of carboxylate anions did not yield HO? ions in situ and triggered single ligand arm hydrolysis. The formation of tetra- and pentanuclear aggregates as well as ligand hydrolyzed dinuclear products has been rationalized to identify the possible roles of carboxylate anions in solution. Detailed characterization of the complexes in the solid state and in solution has been carried out using spectroscopic measurements, X-ray crystallography, variable temperature magnetic measurements and functional behavior. In MeOH solutions at 298 K, the complexes 1-4 showed catalytic oxidation of 3,5-di-tert-butyl catechol (3,5-DTBCH2) saturated with O2 from the air.

Heterometallic trinuclear oxo-centered clusters as single-source precursors for synthesis of stoichiometric monodisperse transition metal ferrite nanocrystals

Brennessel, William W.,Knowles, Kathryn E.,Sanchez-Lievanos, Karla R.,Tariq, Mehrin

, p. 16348 - 16358 (2020)

The use of heterobimetallic metal complexes as molecular single-source precursors is a promising strategy for the targeted synthesis of phase-pure stoichiometric ternary metal oxide nanocrystals. However, the design and synthesis of these precursors is not trivial and can require considerable effort. Using spinel metal ferrite nanocrystals of formula MFe2O4 (M = Fe2+, Co2+, Ni2+, Cu2+, and Zn2+) as a model system, this paper evaluates the efficacy of the single-source precursor approach by comparing directly nanocrystals synthesized from the solvothermal reaction of heterobimetallic trinuclear oxo-bridged clusters of formula MIIFeIII2(μ3-O)(μ2-O2CR)6(H2O)3, R = CF3 to nanocrystals synthesized from the solvothermal reaction of stoichiometric mixtures of multi-source precursors, such as metal acetate or nitrate salts. For each M explored here, the clusters form phase-pure MFe2O4 nanocrystals with significantly narrower size distributions than nanocrystals synthesized from multi-source-precursors. In the case of M = Cu, the multi-source metal salt precursors produce a mixture of CuO and CuFe2O4. Additionally, changing the electronic nature of the R-group on the bridging carboxylate ligand from electron withdrawing (CF3) to electron donating (CH3 or C(CH3)3) decreases the average diameter of the resulting nanocrystals by a factor of two. The cluster molecules therefore offer superior control over both morphology and composition for transition metal ferrite nanocrystals. We hypothesize that this remarkable performance arises from the presence of pre-formed M2+-O-Fe3+ moieties in the cluster molecules that enable direct nucleation of MFe2O4 and preclude nucleation of binary oxide impurities.

Oxidation of fluoroalkyl alcohols using sodium hypochlorite pentahydrate [1]

Kirihara, Masayuki,Suzuki, Katsuya,Nakakura, Kana,Saito, Katsuya,Nakamura, Riho,Tujimoto, Kazuki,Sakamoto, Yugo,Kikkawa, You,Shimazu, Hideo,Kimura, Yoshikazu

, (2021/02/05)

Fluoroalkyl alcohols are effectivity oxidized to the corresponding fluoroalkyl carbonyl compounds by reaction with sodium hypochlorite pentahydrate in acetonitrile in the presence of acid and nitroxyl radical catalysts. Although the reaction proceeded slower under a nitroxyl radical catalyst- free condition, the desired carbonyl compounds were obtained in high yields. For the reaction with fluoroalkyl allylic alcohols, the corresponding α,β-epoxyketone hydrates were obtained in high yields.

Alkali metal trifluoroacetates for the nucleophilic trifluoromethylation of fullerenes

Bogdanov, Viktor P.,Dmitrieva, Veronika A.,Ioutsi, Vitaliy A.,Belov, Nikita M.,Goryunkov, Alexey A.

, (2019/07/17)

Fullerene C60 readily reacts with potassium and cesium trifluoroacetates yielding C60(CF3)–M+ salts, and subsequent acid hydrolysis gives ortho-C60(CF3)H. The reaction rate and the probability of the alternative reaction pathways strongly depend on the particular metal cation. Thus, the reactivity increases in the order Li 2- rather than CF3-functionalization of the fullerene, in good accordance with the hard/soft acids and bases theory. The nucleophilic trifluoromethylation is found to be applicable to other pristine fullerenes like C70 as well as to fullerene derivatives like p7mp-C70(CF3)10. It enables selective preparation of low trifluoromethylated fullerenes via regioselective consecutive trifluoromethylation under accurately controlled solution-phase conditions.

Pyrolytic decarboxylation of some derivatives of perfluorinated mono- and dicarboxylic acids

Lebedev,Berenblit,Starobin,Gubanov

, p. 1640 - 1645 (2007/10/03)

Pathways of pyrolysis of perfluorinated carboxylic acids are considered in relation to the structure of the acids and reaction conditions. The reaction mechanism is discussed.

Reaction of polyfluoro-3-chloro(bromo)-1-butenes with sodium hypohalites and properties of epoxides derived therefrom

Zapevalov,Filyakova,Kodess,Saloutin

, p. 919 - 923 (2007/10/03)

Epoxidation of 3-chloro(bromo)heptafluoro-1-butenes and 3,4-dichlorohexafluoro-1-butene with aqueous solutions of sodium hypohalites is accompanied by cleavage of the carbon skeleton at the double bond and formation of polyfluorocarboxylic acid sodium sal

1,2 chemiluminescent dioxetanes of improved performance

-

, (2008/06/13)

A new class of stable dioxetanes bears a polycyclic stabilizing group and aryloxy moiety, the oxygen atom of which is provided with a protective group which can be removed by an enzymatic or chemical trigger admixed with the dioxetane. The polycyclic stabilizing group is preferably spiroadamantane. The group further bears an alkoxy, aryloxy, aralkyloxy or cycloalkyloxy moiety which is partially or completely substituted with halogens, particularly fluorine and chlorine. Proper selection of electron active groups on the stabilizing moiety, the aryl group and the OR group yields enhanced enzyme kinetics, superior light intensity and excellent detection sensitivity in various assays.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 2923-18-4