Welcome to LookChem.com Sign In|Join Free

Cas Database

433-19-2

433-19-2

Identification

  • Product Name:1,4-Bis(trifluoromethyl)benzene

  • CAS Number: 433-19-2

  • EINECS:207-086-0

  • Molecular Weight:214.11

  • Molecular Formula: C8H4F6

  • HS Code:29039990

  • Mol File:433-19-2.mol

Synonyms:p-Xylene, a,a,a,a',a',a'-hexafluoro- (6CI,7CI,8CI);1,4-Di(trifluoromethyl)benzene;NSC 61992;p-Bis(trifluoromethyl)benzene;p-Trifluoromethylbenzotrifluoride;p-Xylene hexafluoride;a,a,a,a',a',a'-Hexafluoro-p-xylene;

Post Buying Request Now
Entrust LookChem procurement to find high-quality suppliers faster

Safety information and MSDS view more

  • Pictogram(s):IrritantXi,FlammableF

  • Hazard Codes:Xi,F

  • Signal Word:Danger

  • Hazard Statement:H225 Highly flammable liquid and vapourH315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

Supplier and reference price

  • Manufacture/Brand
  • Product Description
  • Packaging
  • Price
  • Delivery
  • Purchase
  • Manufacture/Brand:TRC
  • Product Description:1,4-Bis(trifluoromethyl)benzene
  • Packaging:25g
  • Price:$ 45
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:TCI Chemical
  • Product Description:1,4-Bis(trifluoromethyl)benzene >99.0%(GC)
  • Packaging:500g
  • Price:$ 220
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:TCI Chemical
  • Product Description:1,4-Bis(trifluoromethyl)benzene >99.0%(GC)
  • Packaging:25g
  • Price:$ 26
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:1,4-Bis(trifluoromethyl)benzene 98%
  • Packaging:500 g
  • Price:$ 98
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:1,4-Bis(trifluoromethyl)benzene 98%
  • Packaging:100 g
  • Price:$ 29
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:1,4-Bis(trifluoromethyl)benzene 98%
  • Packaging:25g
  • Price:$ 51.2
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Matrix Scientific
  • Product Description:1,4-Bis(trifluoromethyl)benzene 98%
  • Packaging:100g
  • Price:$ 28
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Matrix Scientific
  • Product Description:1,4-Bis(trifluoromethyl)benzene 98%
  • Packaging:500g
  • Price:$ 97
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Biosynth Carbosynth
  • Product Description:1,4-Bis(trifluoromethyl)benzene
  • Packaging:50 g
  • Price:$ 180
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Biosynth Carbosynth
  • Product Description:1,4-Bis(trifluoromethyl)benzene
  • Packaging:25 g
  • Price:$ 120
  • Delivery:In stock
  • Buy Now

Relevant articles and documentsAll total 33 Articles be found

Synthesis and reductive elimination of arylPd(II) trifluoromethyl complexes: A remarkable concentration effect on chemoselectivity

Zhang, Song-Lin,Deng, Zhu-Qin

, p. 32664 - 32667 (2016)

Reductive elimination from Pd(II) aryl trifluoromethyl complexes is a challenging and elusive step which is accompanied by a number of kinetically more favorable side reactions giving rising to a complex mixture. We report herein the synthesis and isolation of several arylPd(II) trifluoromethyl complexes (2a-c) and study their electronic structures, photophysical properties and reductive elimination reactivities. A remarkable concentration effect on chemoselectivity is observed for thermal decomposition of (Xantphos)Pd(II)(Ar)(CF3) (2c) that favors the formation of Ar-CF3 at lower concentrations, but gives increasingly more Ar-Ar homocoupling product to a dominant extent as the concentration of 2c increases. This is solid evidence for the involvement of an intermolecular Ar/CF3 ligand exchange/Ar-Ar reductive elimination mechanism that has been proposed based on DFT computational studies. The interplay between theory and experiment provides valuable insights into the mechanism and kinetics of the key elementary reaction of reductive elimination at Pd(II), and may thus prompt the design of more efficient Pd-mediated nucleophilic trifluoromethylation reactions.

Cross-Coupling through Ag(I)/Ag(III) Redox Manifold

Demonti, Luca,Mézailles, Nicolas,Nebra, Noel,Saffon-Merceron, Nathalie

supporting information, p. 15396 - 15405 (2021/10/12)

In ample variety of transformations, the presence of silver as an additive or co-catalyst is believed to be innocuous for the efficiency of the operating metal catalyst. Even though Ag additives are required often as coupling partners, oxidants or halide scavengers, its role as a catalytically competent species is widely neglected in cross-coupling reactions. Most likely, this is due to the erroneously assumed incapacity of Ag to undergo 2e? redox steps. Definite proof is herein provided for the required elementary steps to accomplish the oxidative trifluoromethylation of arenes through AgI/AgIII redox catalysis (i. e. CEL coupling), namely: i) easy AgI/AgIII 2e? oxidation mediated by air; ii) bpy/phen ligation to AgIII; iii) boron-to-AgIII aryl transfer; and iv) ulterior reductive elimination of benzotrifluorides from an [aryl-AgIII-CF3] fragment. More precisely, an ultimate entry and full characterization of organosilver(III) compounds [K]+[AgIII(CF3)4]? (K-1), [(bpy)AgIII(CF3)3] (2) and [(phen)AgIII(CF3)3] (3), is described. The utility of 3 in cross-coupling has been showcased unambiguously, and a large variety of arylboron compounds was trifluoromethylated via [AgIII(aryl)(CF3)3]? intermediates. This work breaks with old stereotypes and misconceptions regarding the inability of Ag to undergo cross-coupling by itself.

Au@ZnO Core-Shell: Scalable Photocatalytic Trifluoromethylation Using CF3CO2Na as an Inexpensive Reagent under Visible Light Irradiation

Bazyar, Zahra,Hosseini-Sarvari, Mona

supporting information, p. 2345 - 2353 (2019/10/16)

Trifluoromethylation is of significant importance for the synthesis of many small molecules vital for medicinal and agrochemical research. The importance of the CF3 group as well as the related synthetic challenges is so evident that many reagents have been reported for the synthesis of trifluoromethylated compounds, but these typical reagents are expensive and the methods for preparing them are difficult. Here, we report a new scalable and operationally simple trifluoromethylation reaction using sodium trifluoroacetate as a reagent and Au-modified ZnO as a photocatalyst under visible light irradiation. The reaction proceeds via trifluoromethylation of a broad range of aryl halides, arylboronic acids, and arene and heteroarene substrates. Some pharmaceutical and agrochemical compounds have been trifluoromethylated directly to demonstrate the applicability of the method.

Isolation of OH-bridged Ag(i)/Cu(iii) and ion-pair Cu(i)/Cu(iii) trifluoromethyl complexes with monophosphines

Xiao, Chang,Zhang, Song-Lin

supporting information, p. 848 - 853 (2019/01/21)

Cu(iii)-CF3 complexes are important intermediates of both synthetic and mechanistic interest. This study describes the isolation, and spectroscopic and X-ray crystallographic characterization of CuIII-CF3 complexes 2-4 with typical monophosphine ligands PPh3 and Buchwald-type biarylmonophosphines. Distinct from the ion-pair [P2Cu(i)]+[Cu(iii)(CF3)4]? structures of 2 and 4 (P: PPh3 or SPhos), complex 3 exhibits a novel OH-bridged Ag(i)-Cu(iii) dinuclear structure with XPhos-coordinated linear Ag(i) and square planar Cu(iii) components. This is the first heterobimetallic Cu(iii)-CF3 complex confirmed by both solution-phase NMR spectroscopy and solid state X-ray crystal structure analysis. Complex 3 is found to have the LUMO orbital of major σ*(Cu-CF3) nature and electrophilic CF3 ligands. Accordingly, complex 3 is able to trifluoromethylate 2 equivalents of aryl boronic acids in up to quantitative yields, regardless of the inert or oxidative conditions. In contrast, the ion-pair complexes 2 and 4 show low reactivity. This study enriches the coordination and reactivity chemistry of Cu(iii)-CF3 compounds and shows the feasibility of modulation of structures and reactivity by ligand design, which may inspire future efforts on Cu(iii)-CF3 chemistry.

Air-Sensitive Photoredox Catalysis Performed under Aerobic Conditions in Gel Networks

H?ring, Marleen,Abramov, Alex,Okumura, Keisuke,Ghosh, Indrajit,K?nig, Burkhard,Yanai, Nobuhiro,Kimizuka, Nobuo,Díaz Díaz, David

, p. 7928 - 7938 (2018/06/04)

In this work, we demonstrate that useful C-C bond-forming photoredox catalysis can be performed in air using easily prepared gel networks as reaction media to give similar results as are obtained under inert atmosphere conditions. These reactions are completely inhibited in homogeneous solution in air. However, the supramolecular fibrillar gel networks confine the reactants and block oxygen diffusion, allowing air-sensitive catalytic activity under ambient conditions. We investigate the mechanism of this remarkable protection, focusing on the boundary effect in the self-assembled supramolecular gels that enhances the rates of productive reactions over diffusion-controlled quenching of excited states. Our observations suggest the occurrence of triplet-sensitized chemical reactions in the gel networks within the compartmentalized solvent pools held between the nanofibers. The combination of enhanced viscosity and added interfaces in supramolecular gel media seems to be a key factor in facilitating the reactions under aerobic conditions.

Diverse copper(iii) trifluoromethyl complexes with mono-, bi- and tridentate ligands and their versatile reactivity

Zhang, Song-Lin,Xiao, Chang,Wan, Hai-Xing

supporting information, p. 4779 - 4784 (2018/04/11)

Cu(iii) trifluoromethyl complexes are proposed as essential intermediates for many copper-promoted trifluoromethylation reactions, but remain elusive and scarcely explored. We report herein the isolation and spectroscopic and X-ray crystallographic charac

Process route upstream and downstream products

Process route

terephthalic acid
100-21-0

terephthalic acid

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

4-trifluoromethyl-benzoyl fluoride
368-94-5

4-trifluoromethyl-benzoyl fluoride

Conditions
Conditions Yield
With sulfur tetrafluoride; at 120 ℃; unter Druck;
With sulfur tetrafluoride; at 120 ℃; unter Druck;
1,4-bis(trichloromethyl)benzene
68-36-0

1,4-bis(trichloromethyl)benzene

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With hydrogen fluoride; at 150 ℃; for 7h; under 77574.3 Torr;
75%
With hydrogen fluoride; at 150 - 210 ℃;
With hydrogen fluoride; antimonypentachloride; at 20 ℃;
With hydrogen fluoride; at 150 - 210 ℃;
mesityl(4-(trifluoromethyl)phenyl)-λ<sup>3</sup>-iodanyl trifluoromethanesulfonate
1232133-62-8

mesityl(4-(trifluoromethyl)phenyl)-λ3-iodanyl trifluoromethanesulfonate

(trifluoromethyl)trimethylsilane
81290-20-2

(trifluoromethyl)trimethylsilane

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With potassium fluoride; tetrakis(acetonitrile)copper(I)tetrafluoroborate; In acetonitrile; at 20 ℃; for 0.333333h; Inert atmosphere;
83 %Spectr.
trifluoromethanesulfonic acid difluoromethyl ether
1885-46-7

trifluoromethanesulfonic acid difluoromethyl ether

mesityl(4-(trifluoromethyl)phenyl)-λ<sup>3</sup>-iodanyl trifluoromethanesulfonate
1232133-62-8

mesityl(4-(trifluoromethyl)phenyl)-λ3-iodanyl trifluoromethanesulfonate

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
trifluoromethanesulfonic acid difluoromethyl ether; With copper(I) thiophene-2-carboxylate; tetrabutylammonium triphenyldifluorosilicate; In N,N-dimethyl-formamide; at 20 ℃; for 0.0833333h; Inert atmosphere;
mesityl(4-(trifluoromethyl)phenyl)-λ3-iodanyl trifluoromethanesulfonate; In N,N-dimethyl-formamide; at 20 ℃; for 0.0833333h; Inert atmosphere;
70 %Spectr.
4-trifluoromethylphenylboronic acid
128796-39-4

4-trifluoromethylphenylboronic acid

Langlois reagent
2926-29-6

Langlois reagent

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With tert.-butylhydroperoxide; tetrakis(actonitrile)copper(I) hexafluorophosphate; potassium hydrogencarbonate; In methanol; water; at 0 - 20 ℃; for 12h; Solvent; Concentration;
61%
4-Trifluoromethyl-dithiobenzoic acid ethyl ester
160911-78-4

4-Trifluoromethyl-dithiobenzoic acid ethyl ester

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With bromine trifluoride; In trichlorofluoromethane; at 0 ℃; for 0.0333333h;
65%
Multi-step reaction with 2 steps
1: BrF3 / CCl3F / 0 °C
2: 65 percent / BrF3, CFCl3 / 0 °C
With bromine trifluoride; trichlorofluoromethane; In trichlorofluoromethane;
C<sub>26</sub>H<sub>28</sub>F<sub>6</sub>N<sub>2</sub>Pd

C26H28F6N2Pd

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With 1-fluoro-2,4,6-trimethylpyridinium trifluoromethanesulfonate; In nitrobenzene-d5; at 80 ℃; for 3h; Inert atmosphere;
61 %Spectr.
terephthalic acid
100-21-0

terephthalic acid

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With sulfur tetrafluoride; at 120 ℃;
With sulfur tetrafluoride; at 120 ℃; for 6h;
With sulfur tetrafluoride; at 120 ℃;
1-Chloro-4-iodobenzene
637-87-6

1-Chloro-4-iodobenzene

methyl 3-oxa-ω-fluorosulfonylperfluoropentanoate
88986-32-7

methyl 3-oxa-ω-fluorosulfonylperfluoropentanoate

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With copper(l) iodide; In N,N-dimethyl-formamide; at 100 ℃; for 8h;
82%
4-trifluoromethylphenylboronic acid
128796-39-4

4-trifluoromethylphenylboronic acid

sodium 2,2,2-trifluoroacetate
2923-18-4

sodium 2,2,2-trifluoroacetate

1,4-bis(trifluoromethyl)benzene
433-19-2

1,4-bis(trifluoromethyl)benzene

Conditions
Conditions Yield
With potassium fluoride; potassium phosphate; In water; N,N-dimethyl-formamide; at 20 ℃; for 48h; Irradiation; Inert atmosphere;
72%

Global suppliers and manufacturers

Global( 116) Suppliers
  • Company Name
  • Business Type
  • Contact Tel
  • Emails
  • Main Products
  • Country
  • Simagchem Corporation
  • Business Type:Manufacturers
  • Contact Tel:+86-592-2680277
  • Emails:sale@simagchem.com
  • Main Products:110
  • Country:China (Mainland)
  • Chemwill Asia Co., Ltd.
  • Business Type:Manufacturers
  • Contact Tel:021-51086038
  • Emails:sales@chemwill.com
  • Main Products:30
  • Country:China (Mainland)
  • Amadis Chemical Co., Ltd.
  • Business Type:Lab/Research institutions
  • Contact Tel:86-571-89925085
  • Emails:sales@amadischem.com
  • Main Products:29
  • Country:China (Mainland)
  • Shaanxi BLOOM TECH Co.,Ltd
  • Business Type:Lab/Research institutions
  • Contact Tel:+86-29-86470566
  • Emails:sales@bloomtechz.com
  • Main Products:80
  • Country:China (Mainland)
  • Shanghai Upbio Tech Co.,Ltd
  • Business Type:Lab/Research institutions
  • Contact Tel:+86-21-52196435
  • Emails:upbiocn@hotmail.com
  • Main Products:88
  • Country:China (Mainland)
  • BAYNOE CHEM CO.,LTD
  • Business Type:Lab/Research institutions
  • Contact Tel:+86-21-34783353
  • Emails:baynoe@baynoe.com
  • Main Products:4
  • Country:China (Mainland)
close
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 433-19-2
Post Buying Request Now
close
Remarks: The blank with*must be completed