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613-33-2

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613-33-2 Usage

Chemical Properties

Crystalline

Uses

4,4'-Dimethylbiphenyl is used in the preparation of biphenyl-4,4?-dicarboxylic acid, which acts as a monomer utilized in the synthesis of linear long chain polymer through polycondensation reaction. It is used to prepare 4-(4'-methylphenyl)benzaldehyde by selective photoxygenation reaction using 9-phenyl-10-methylacridinium perchlorate as a catalyst under visible light irradiation.

Synthesis Reference(s)

Tetrahedron Letters, 21, p. 631, 1980 DOI: 10.1016/S0040-4039(01)85577-5Journal of the American Chemical Society, 90, p. 2423, 1968 DOI: 10.1021/ja01011a041

Check Digit Verification of cas no

The CAS Registry Mumber 613-33-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,1 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 613-33:
(5*6)+(4*1)+(3*3)+(2*3)+(1*3)=52
52 % 10 = 2
So 613-33-2 is a valid CAS Registry Number.

613-33-2 Well-known Company Product Price

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  • (Code)Product description
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  • Detail
  • Alfa Aesar

  • (B25089)  4,4'-Dimethylbiphenyl, 99%   

  • 613-33-2

  • 1g

  • 513.0CNY

  • Detail
  • Alfa Aesar

  • (B25089)  4,4'-Dimethylbiphenyl, 99%   

  • 613-33-2

  • 5g

  • 1698.0CNY

  • Detail
  • Alfa Aesar

  • (B25089)  4,4'-Dimethylbiphenyl, 99%   

  • 613-33-2

  • 25g

  • 7625.0CNY

  • Detail
  • Aldrich

  • (D151203)  4,4′-Dimethylbiphenyl  97%

  • 613-33-2

  • D151203-1G

  • 547.56CNY

  • Detail

613-33-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4'-Dimethylbiphenyl

1.2 Other means of identification

Product number -
Other names 1,1‘-Biphenyl, 4,4‘-dimethyl-

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:613-33-2 SDS

613-33-2Relevant articles and documents

Eisch,Wilcsek

, p. C21 (1974)

N-heterocyclic carbenes: III. N-heterocyclic carbene ligands based on abietane in Suzuki-Miyaura reaction

Glushkov,Valieva,Maiorova,Baigacheva,Gorbunov

, p. 230 - 235 (2011)

By reactions of N-alkyl- and N-arylimidazoles with methyl 12-bromoacetyldehydroabietate a series of unsymmetrically substituted chiral imidazolium bromides with the abietane fragment was synthesized. The salts obtained were suggested as new N-heterocyclic carbene ligands in the Suzuki-Miyaura reaction.

The study and application of three highly porous hyper-crosslinked catalysts possessing similar catalytic centers

Bi, Jiajun,Dong, Yahao,Meng, Di,Zhu, Dajian,Li, Tao

, p. 183 - 190 (2019)

Three new catalysts, in which salen ligands were successfully locked in knitting network polymers, were synthesized through the Friedel-Crafts reaction. As a result, the catalysts possessed high specific surface area as high as 512 m2/g with micro-/mesoporous structures, and showed layered morphologies. Owing to the high surface area, the abundant active centers and pores, the Poly-salen-a-Pd(II) displayed superior performance in the Suzuki-Miyaura coupling reaction of various substrates. In particular, the effect from similar catalytic centers for the catalytic properties and stability was investigated by a series of experiments and analyses such as thermogravimetric analysis (TGA), scanning and transmission electron microscopies (SEM and TEM), X-ray photoelectron spectroscopy (XPS), atomic absorption spectroscopy (AAS). Notably, three catalysts showed high activity in the reaction, and displayed excellent performance in the hot filtration experiments. This strategy is very cost-effective and convenient, which was highly suggestive to diverse professional audiences in a wide range of heterogeneous catalyst design and application.

Uemura et al.

, p. 390 (1971)

Kasahara et al.

, p. 183 (1974)

Catalytic activation of a single C-F bond in trifluoromethyl arenes

Dang, Hester,Whittaker, Aaron M.,Lalic, Gojko

, p. 505 - 509 (2016)

Synthetic methods for the direct transformation of ArCF3 to ArCF2R would enable efficient diversification of trifluoromethyl arenes and would be of great utility in medicinal chemistry. Unfortunately, the development of such methods has been hampered by the fundamental properties of C-F bonds, which are exceptionally strong and become stronger with increased fluorination of the carbon atom. Here, we describe a method for the catalytic reduction of ArCF3 to ArCF2H through a highly selective activation of a single C-F bond. Mechanistic studies reveal separate reaction pathways for the formation of ArCF2H and ArCH3 products and point to the formation of an unexpected intermediate as the source of the unusual selectivity for the mono-reduction.

Iron(II) Corrole Anions

Caulfield, Kenneth P.,Conradie, Jeanet,Arman, Hadi D.,Ghosh, Abhik,Tonzetich, Zachary J.

, (2019)

Reduction of [Fe(TPC)(THF)] (TPC = trianion of 5,10,15-Triphenylcorrole) with KC8 generates the iron(II) corrole anion, K(THF)2[FeII(TPC)] (3a). Compound 3a represents the first example of an isolated and crystallographically characterized corrole complex of divalent iron. The compound adopts an intermediate-spin state (S = 1), displaying square-planar geometry about the iron atom. All-electron density functional theory (OLYP and B3LYP) calculations with STO-TZP basis sets indicate two essentially equienergetic d electron configurations, dxy2dz22dxz1dyz1 (occupation 1) and dxy2dz21dxz1dyz2 (occupation 2), as likely contenders for the ground state of [FeII(TPC)]-, with the optimized geometry of the former in slightly better agreement with the low-Temperature X-ray structure. Solutions of 3a react with carbon monoxide to afford the low-spin (S = 0) complex, [Fe(TPC)(CO)]-, whereas introduction of oxygen at-78 °C leads to a putative O2 adduct, [Fe(TPC)(O2)]-, which decays rapidly even at low temperatures. Treatment of 3a with organic electrophiles results in formal oxidative addition to give both iron(III) and iron(IV) corrole species. With iodomethane, [Fe(TPC)Me] is produced, illustrating the first instance of alkyl ligand coordination in an iron corrole complex.

Palladium-bisimidazol-2-ylidene complexes as catalysts for general and efficient Suzuki cross-coupling reactions of aryl chlorides with arylboronic acids

Zhang, Chunming,Trudell, Mark L.

, p. 595 - 598 (2000)

A series of bisimidazolium salts 1-6 were synthesized and evaluated as precursors to bisimidazol-2-ylidene ligands in palladium-catalyzed Suzuki cross-coupling reactions with aryl chlorides and arylboronic acids. The bisimidazolium salt 6 was found to be superior over imidazolium and other bisimidazolium salts affording high yields of biaryl products employing a wide variety of substrates. (C) 2000 Elsevier Science Ltd.

Phosphonate functionalized N-heterocyclic carbene Pd(II) complexes as efficient catalysts for Suzuki-Miyaura cross coupling reaction

Bhattacharyya, Bagmita,Gogoi, Nayanmoni,Guha, Ankur Kanti,Kalita, Amlan Jyoti

, (2021)

A N-heterocyclic carbene (NHC) ligand, L1 bearing a pendant phosphonate ester group is used to prepare two new NHC-Pd(II) complexes, [Pd(L1)2I2] (1) and [Pd(L1)(py)I2] (2) (py = pyridine). Hydrolysis of phosphonate ester group in 2 results another Pd(II)-NHC complex, [Pd(L2)(py)I2] (3) where a phosphonic acid group is attached to the NHC ligand L2. All the three complexes are characterized by analytical and spectroscopic studies while the molecular structures of 1-2 are also determined by single crystal X-ray diffraction measurement. The catalytic efficacies of 1-3 in Suzuki-Miyaura cross coupling reactions of aryl halides and aryl boronic acid are investigated. DFT calculations were performed to decipher the role phosphonate ester or phosphonic acid substituents on the catalytic efficacy.

A Kumada Coupling Catalyst, [Ni{(Ph2P)2N(CH2)3Si(OCH3)3-P,P′}Cl2], Bearing a Ligand for Direct Immobilization onto Siliceous Mesoporous Molecular Sieves

Stamatopoulos, Ioannis,Giannitsios, Dimitrios,Psycharis, Vassilis,Raptopoulou, Catherine P.,Balcar, Hynek,Zukal, Arno?t,Svoboda, Jan,Kyritsis, Panayotis,Vohlídal, Ji?í

, p. 3038 - 3044 (2015)

The ligand-exchange reaction between [Ni(PPh3)2Cl2] and (Ph2P)2N(CH2)3Si(OCH3)3 afforded the novel NiII complex [Ni{(Ph2P)2N(CH2)3Si(OCH3)3-P,P′}Cl2] (1) in which the square-planar NiP2Cl2 coordination sphere contains a four-membered Ni-P-N-P ring. Comparison of the structure of 1 and related NiII square-planar or Ni0 tetrahedral complexes containing similar P-N-P ligands shows that the magnitude of the P-Ni-P angle is controlled by the presence of the Ni-P-N-P ring, irrespective of the geometry of the nickel coordination sphere. Direct anchoring of 1 onto SBA-15 molecular sieves through the trimethoxysilyl end-group of the ligand afforded heterogeneous catalyst 1/SBA-15. Both 1 and 1/SBA-15 catalyze Kumada cross-coupling reactions, exhibiting similar activity and a slightly higher product selectivity than the [Ni{Ph2P(CH2)3PPh2-P,P′}Cl2] and [Ni{(Ph2P)2N-(S)-CHMePh-P,P′}X2] (X = Cl, Br) complexes described in the literature. The Grignard reagent employed is likely to induce leaching of the catalyst, which retains its activity in solution.

Synthesis and characterization of palladium nanoparticles immobilized on graphene oxide functionalized with triethylenetetramine or 2,6-diaminopyridine and application for the Suzuki cross-coupling reaction

Boukherroub, Rabah,Mirza-Aghayan, Maryam,Mohammadi, Marzieh

, (2021/11/22)

Graphene oxide (GO) was functionalized with two organic ligands, triethylenetetramine (TETA) or 2,6-diaminopyridine (DAP), followed by palladium nanoparticles (Pd NPs) for the synthesis of Pd NPs/GO-TETA and Pd NPs/GO-DAP nanocomposites, respectively. The two heterogeneous nanocomposites were fully characterized and their efficiency was investigated for C[sbnd]C bond formation for the synthesis of biaryl compounds via the Suzuki cross-coupling reaction of aryl halides with arylboronic acid derivatives. The obtained results indicated that the Pd NPs/GO-TETA nanocomposite was more effective in the Suzuki coupling reaction as compared to Pd NPs/GO-DAP. Thus, the Suzuki cross-coupling reaction of different aryl halides with arylboronic acid derivatives using Pd NPs/GO-TETA nanocomposite catalyst in the presence of Na2CO3 as base in DMF/H2O (1/1) as solvent at 90 °C was carried out to afford the desired biaryl compounds in high to excellent yields (81–100%) and short reaction times (10–90 min). Additionally, Pd NPs/GO-TETA nanocomposite can be recovered and reused for 8 consecutive runs without any apparent loss of its catalytic activity, proving its high stability and potential use in organic transformations.

Pd-Catalyzed desulfitative arylation of olefins by: N -methoxysulfonamide

Ojha, Subhadra,Panda, Niranjan

supporting information, p. 1292 - 1298 (2022/02/19)

A novel Pd-catalyzed protocol for the desulfitative Heck-type reaction of N-methoxy aryl sulfonamides with alkenes was reported. The cross-coupling reaction was performed successfully with a variety of olefins to obtain aryl alkenes. Different substituents on the aromatic ring of N-methoxysulfonamides were also found to be compatible with the reaction conditions. Expectedly, the reaction proceeds through CuCl2-promoted generation of the nitrogen radical and subsequent desulfonylation under thermal conditions to afford the aryl radical for the Pd-catalyzed coupling reaction. N-Methoxysulfonamide was further exploited for the synthesis of symmetrical biaryls in the presence of CuCl2. This journal is

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