1,2-Bis(3,4-dimethylphenyl)ethane

Base Information

• Chemical Name: 1,2-Bis(3,4-dimethylphenyl)ethane
• CAS No.: 34101-86-5
• Molecular Formula: C18H22
• Molecular Weight: 238.373
• Hs Code.: 2902909090
• DSSTox Substance ID: DTXSID2074619
• Nikkaji Number: J133.578B
• Wikidata: Q82002882
• Mol file: 34101-86-5.mol

Synonyms:1,2-Bis(3,4-dimethylphenyl)ethane;34101-86-5;4-[2-(3,4-dimethylphenyl)ethyl]-1,2-dimethylbenzene;3,3',4,4'-TETRAMETHYLBIBENZYL;1,2-bis-(3,4-Dimethylphenyl)ethane;Benzene, 1,1'-(1,2-ethanediyl)bis[3,4-dimethyl-;Benzene, 1,1'-(1,2-ethanediyl)bis(3,4-dimethyl-;1,2-Di(3,4-xylyl)ethane;DTXSID2074619;MFCD00037055;Bibenzyl, 3,3',4,4'-tetramethyl-;B1851;CS-0451344;T70797

Chemical Property of 1,2-Bis(3,4-dimethylphenyl)ethane

Chemical Property:

• Vapor Pressure: 0.000173mmHg at 25°C
• Melting Point: 92.0 to 96.0 °C
• Refractive Index: 1.554
• Boiling Point: 340.1 °C at 760 mmHg
• Flash Point: 169.1 °C
• PSA: 0.00000
• Density: 0.96 g/cm³
• LogP: 4.70540
• XLogP3: 5.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 3
• Exact Mass: 238.172150702
• Heavy Atom Count: 18
• Complexity: 218

Purity/Quality:

99% ^*data from raw suppliers

1,2-Bis(3,4-dimethylphenyl)ethane >95.0%(GC) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=C(C=C(C=C1)CCC2=CC(=C(C=C2)C)C)C

Technology Process of 1,2-Bis(3,4-dimethylphenyl)ethane

There total 5 articles about 1,2-Bis(3,4-dimethylphenyl)ethane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 97.0%

4-(chloromethyl)-1,2-dimethylbenzene (102-46-5) → 3,3',4,4'-tetramethyl-1,2-diphenylethane (34101-86-5)

Guidance literature:

With 1-dodecyl-3-methylimidazolium cuprous chloride; copper; zinc; at 70 ℃; for 1.5h;

DOI:10.1007/s10562-010-0535-5

Reference yield: 81.0%

3,4-dimethylbenzyl alcohol (6966-10-5) → 3,3',4,4'-tetramethyl-1,2-diphenylethane (34101-86-5)

Guidance literature:

With Dimethyl oxalate; manganese; 1,2-bis(diphenylphosphino)ethane nickel(II) chloride; lithium bromide; In N,N-dimethyl-formamide; at 110 ℃; for 16h; Inert atmosphere; Sealed tube;

DOI:10.1055/a-1467-2432

Reference yield: 64.0%

o-xylene (95-47-6) + tris(diformylamino)methane (332047-72-0) → 3,4-dimethylbenzaldehyde (5973-71-7) + 3,3',4,4'-tetramethyl-1,2-diphenylethane (34101-86-5)

Guidance literature:

With aluminium trichloride; In 1,2-dichloro-ethane; Further Variations:; reagent amount; Product distribution;

DOI:10.1002/1099-0690(200108)2001:15<2947::AID-EJOC2947>3.0.CO;2-R

upstream raw materials:

o-xylene

tris(diformylamino)methane

4-(chloromethyl)-1,2-dimethylbenzene

ethene

Refernces

• 1、 Li, Jiesheng,Luo, Yixin,Cheo, Han Wen,Lan, Yu,Wu, Jie. "Photoredox-Catalysis-Modulated, Nickel-Catalyzed Divergent Difunctionalization of Ethylene". supporting information. p. 192 - 203. Retrieved 2019/01/21.
• 2、 Hu, Yu-Lin,Lu, Ming,Liu, Qi-Fa,Ge, Qiang. "Improved preparation of 3,3′,4,4′-tetramethyldiphenylethane by self coupling reaciton in aqueous media". scheme or table. p. 1056 - 1063. Retrieved 2010/08/07.