1674-18-6

Basic information

• Product Name: TETRAPHENYLALLENE
• Synonyms: TETRAPHENYLALLENE;1,1',1'',1'''-(propa-1,2-diene-1,3-diylidene)tetrakisbenzene;1,1',1'',1'''-(Propadiene-1,3-diylidene)tetrakisbenzene;1,1,3,3-Tetraphenylallene;1,1,3,3-Tetraphenylpropane-1,2-diene;1,3,3-tri(phenyl)propa-1,2-dienylbenzene
• CAS NO: 1674-18-6
• Molecular Formula: C₂₇H₂₀
• Molecular Weight: 344.45
• EINECS: 216-815-1
• Mol File: 1674-18-6.mol
• Article Data: 10

Chemical Properties

• Melting Point: 164 °C
• Boiling Point: 568°Cat760mmHg
• Flash Point: 295.1°C
• Appearance: /
• Density: 1.074g/cm³
• CAS DataBase Reference: TETRAPHENYLALLENE(CAS DataBase Reference)
• NIST Chemistry Reference: TETRAPHENYLALLENE(1674-18-6)
• EPA Substance Registry System: TETRAPHENYLALLENE(1674-18-6)

Safety Data

• Hazardous Substances Data: 1674-18-6(Hazardous Substances Data)

Usage

General Description

Tetraphenylallene, also known as 2,5-diphenyl-1,3-butadiene, is a chemical compound with the molecular formula C22H18. It is a conjugated diene with four phenyl groups attached to a central carbon-carbon double bond. Tetraphenylallene is a highly stable compound and is used in organic synthesis as a building block for various organic compounds and materials. It has applications in the production of liquid crystals, functional materials, and other specialized organic molecules due to its unique structure and reactivity. Additionally, it is also studied for potential use in organic electronic devices and as a fluorescent material in research and development. Overall, tetraphenylallene is an important building block in organic chemistry with diverse applications in various fields.

Upstream product

• 3468-99-3 ethyl diphenylacetate 
• 60-29-7 diethyl ether 
• 106627-02-5 1-benzhydrylidene-2,2-diphenyl-ethanediyl disodium 
• 109-64-8 1,3-dibromo-propane 
• 119-61-9 benzophenone 
• 14251-57-1 1,1-diphenyl-1,2-propadiene 
• 19493-09-5 Methylenetriphenylphosphorane 
• 1053-23-2 1,1,2,2-tetraphenylcyclopropane 
• 917-58-8 potassium ethoxide 
• 525-06-4 diphenyl ketene 
• 71-43-2 benzene 
• 124419-91-6 2-Brom-1,1,3,3-tetraphenyl-1-propen 
• 7553-56-2 iodine 
• 530-48-3 1,1-Diphenylethylene 

Downstream Products

• 120209-81-6 (+/-)-7-benzhydryl-8-phenyl-(4ar)-1,2,3,4,4a,5-hexahydro-1t,4t-etheno-naphthalene-2c,3c,5t,6-tetracarboxylic acid-2,3;5,6-dianhydride 
• 120209-81-6 (+/-)-7-benzhydryl-8-phenyl-(4ar)-1,2,3,4,4a,5-hexahydro-1t,4t-etheno-naphthalene-2t,3t,5t,6-tetracarboxylic acid-2,3;5,6-dianhydride 
• 40112-57-0 3-Chloro-benzoic acid 2-oxo-1,3,3-triphenyl-indan-1-yl ester 
• 74610-73-4 4-Benzhydrylidene-2,3,3,5-tetraphenyl-pyrrolidine 
• 74610-73-4 diphenylmethylene-3 tetraphenyl-2,4,4,5 pyrrolidine 
• 74610-73-4 diphenylmethylene-3 tetraphenyl-2,4,4,5 pyrrolidine 
• 119-61-9 benzophenone 
• 124-38-9 carbon dioxide 
• 96739-41-2 1,3-dihydroperoxy-1,1,3,3-tetraphenyl-2-propanone 
• 4614-01-1 1,1,3-triphenylindene 
• 38274-35-0 1,2,3-triphenylindene 
• 67961-32-4 phenylindenophenanthrene 
• 4960-55-8 1,1,3,3-tetraphenyl-1-propene 
• 36171-50-3 1,1,3,3-tetraphenylpropane 

Related news

Electron-transfer photooxygenation of TETRAPHENYLALLENE (cas 1674-18-6) formation of 1,3-dihydroperoxy-1, 1,3,3-tetraphenyl-2-propanone and its decomposition under chemiluminescence09/24/2019

DCA-sensitized electron-transfer photooxygenation of tetraphenylallene (1) in acetonitrile yields benzophenone (3) and polymeric material. In acetone, the yield of 3 is better than twice the amount obtained in acetonitrile and very little of polymeric material is observed. If the acetone solutio...detailed

Relevant articles and documents

1,n-Radical Ions. The Electrochemical Oxidation of 1,1,2,2-Tetraphenylcyclopropane

The anodic oxidation of 1,1,2,2-tetraphenylcyclopropane leads to 1,1,3-triphenylindene or tetraphenylallene depending on the basicity of the medium.

Metal-free hydrogenation of electron-poor allenes and alkenes

The poorer, the better: A metal-free catalytic procedure for the reduction of electron-poor allenes and alkenes has been developed. The method employs a frustrated Lewis pair based catalyst. 1,4-Diazabicyclo[2.2.2]octane (DABCO)/B(C6F5)3 was shown to be the best combination in optimization studies. Copyright

Reactions of the Lithium Salts of the Tribenzylidenemethane Dianion, Diphenylacetone Dianion, and Related Compounds

Potentially synthetically useful reactions of the dilithium salts of the title dianions have been investigated. Electrophilic quenching with a variety of reagents usually leads to the expected products in good yield. Quenching the diphenylacetone dianion with 1 equiv of trimethylchlorosilane, however, gives a good yield of 1,3-diphenylallene obtained by formal elimination of a trimethylsiloxy anion from an intermediate monoquenched monoanion salt. NMR studies, however, do not reveal the intermediacy of the 1,3-diphenyl-2-(trimethylsiloxy)allyl anion but rather suggest that the initial reaction site is at carbon, rather than oxygen. Oxidation of the dianions leads either to ring closure or dimerization for the tribenzylidenemethane dianion and to dimerization for the diphenylacetone dianion. The dimerization reactions are stereospecific, both with respect to the two new stereocenters produced and for the double bonds of the bis-silyl enol ether products if the dimeric bis-enolate dianion products are quenched with trimethylchlorosilane.