19057-51-3

Basic information

• Product Name: 1,1':2',1''-Terphenyl, 4,4''-dimethyl-3',4',5',6'-tetrakis(4-methylphenyl)-
• CAS NO: 19057-51-3
• Molecular Formula: C48H42
• Molecular Weight: 618.861
• Mol File: 19057-51-3.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 1,1':2',1''-Terphenyl, 4,4''-dimethyl-3',4',5',6'-tetrakis(4-methylphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1':2',1''-Terphenyl, 4,4''-dimethyl-3',4',5',6'-tetrakis(4-methylphenyl)-(19057-51-3)
• EPA Substance Registry System: 1,1':2',1''-Terphenyl, 4,4''-dimethyl-3',4',5',6'-tetrakis(4-methylphenyl)-(19057-51-3)

Safety Data

• Hazardous Substances Data: 19057-51-3(Hazardous Substances Data)

Upstream product

• 2789-88-0 1,2-bis(4-methylphenyl)acetylene 
• 1133438-04-6 (di-2-pyridylmethyl-amide)₂Fe 

Relevant articles and documents

Nickel-Catalyzed Facile [2+2+2] Cyclotrimerization of Unactivated Internal Alkynes to Polysubstituted Benzenes

A catalytic [2+2+2] cyclotrimerization of unactivated internal alkynes providing cyclotrimerization products in excellent yields with high regioselectivity is described. The transformation is accomplished by using a simple catalytic mixture comprising Ni(acac)2, an imidazolium salt and a Grignard reagent at room temperature or 60 °C for 20 min or 1 h.

Palladium-catalyzed cycloisomerizations of diarylacetylenes: Synthesis, structures, and physical properties of highly substituted naphthalenes and 8,8 a-dihydrocyclopenta[a]indenes

Depending on the electronic properties of their substituents, the major products generated by palladium-catalyzed cycloisomerizations of diarylalkynes are either highly substituted 8,8a-dihydrocyclopenta[a]indenes 3 or naphthalenes 4. The structures of these compounds were verified by X-ray crystallographic analysis. Many functional groups tolerated the reaction conditions evaluated in this study. The isotope-labeled experiments indicated that added water has a critical role in forming both classes of compounds. The photophysical and electrochemical properties of cycloadducts 3 and their analogues were systematically studied and compared with computational predictions based on density functional theory. Dihydrocyclopenta[a]indenes 3 in either solid or liquid form display strong luminescence, whereas cyclopenta[a]indene 11 j is practically nonfluorescent. The functional groups directly attached to the backbone of compound 3 significantly influenced physical properties. The steric effect arising from the aryl substituents caused different luminescence phenomena, including aggregation-induced and -enhanced emission. Copyright

A deuterium labelling study into the insertion of diphenylacetylenes into iron-aryl bonds

The mechanism of the reaction of dicarbonyl(η5-cyclopentadienyl)phenyliron, 1, with diphenylacetylene to give 2,3-diphenyl--inden-1-one has been investigated using a partially deuterated 1.The mechanistic pathway of the reaction is discussed in terms of the labelling of the indenones obtained.The reaction of phenylacetylene with 1 gives a mixture of products including 2,4,6-triphenyl-4'-methylbenzophenone and C-4,C-6a-dihydro-4-(4'-methylphenyl)-2-phenylpentalene(1-r-3aH)one.