778-66-5

Basic information

• Product Name: 1-METHYL-2,2-DIPHENYLETHYLENE
• Synonyms: 1,1-Diphenyl-1-propene;1,1-Diphenyl-1-propylene;1,1-Diphenylpropene;1-Methyl-2,2-diphenylethene;2-Methyl-1,1-diphenylethylene;Benzene, 1,1'-(1-propenylidene)bis-;Benzene, 1,1'-(1-propylidene)bis-;benzene,1,1’-(1-propenylidene)bis-
• CAS NO: 778-66-5
• Molecular Formula: C₁₅H₁₄
• Molecular Weight: 194.27
• Mol File: 778-66-5.mol
• Article Data: 120

Chemical Properties

• Melting Point: 49°C
• Boiling Point: 284.85°C
• Flash Point: 131.9°C
• Appearance: /
• Density: 1.0250
• Refractive Index: 1.5880
• CAS DataBase Reference: 1-METHYL-2,2-DIPHENYLETHYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-METHYL-2,2-DIPHENYLETHYLENE(778-66-5)
• EPA Substance Registry System: 1-METHYL-2,2-DIPHENYLETHYLENE(778-66-5)

Safety Data

• Hazardous Substances Data: 778-66-5(Hazardous Substances Data)

Usage

Uses

1-Methyl-2,2-diphenylethene is useful in detecting structural features of products derived from coal.

Synthesis Reference(s)

Tetrahedron Letters, 15, p. 1105, 1974 DOI: 10.1016/S0040-4039(01)82418-7

Upstream product

• 108-86-1 bromobenzene 
• 10504-28-6 3,3,4,4-tetraphenyl-hexane 
• 119-61-9 benzophenone 
• 925-90-6 ethylmagnesium bromide 
• 5180-33-6 1,1-Diphenyl-propan-1-ol 
• 70671-93-1 1,1,6,6-tetraphenyl-1,5-hexadiene 
• 75-03-6 ethyl iodide 
• 1733-57-9 ethydiphenylphosphine oxide 
• 75-44-5 phosgene 
• 60-29-7 diethyl ether 
• 71-43-2 benzene 
• 108-95-2 phenol 
• 598-77-6 1,1,2-trichloropropane 
• 201230-82-2 carbon monoxide 

Downstream Products

• 102479-17-4 2-(4-nitro-phenyl)-1,1-diphenyl-propan-1-ol 
• 7498-88-6 4,4-diphenylbut-3-enoic acid 
• 4741-91-7 1,2-epoxy-1,1-diphenylpropane 
• 781-34-0 2-chloro-1,1-diphenylethylene 
• 781-32-8 2-bromo-1,1-diphenylpropene 
• 38328-16-4 (1,4-diphenylbut-1-enyl)benzene 
• 1530-03-6 1,1-diphenylpropane 
• 3139-55-7 1,1-diphenylisopropylamine 
• 4801-15-4 3-bromo-1,1-diphenyl-1-propene 
• 92874-67-4 2-Methyl-3,3-diphenyl-acrylsaeureamid-N-sulfochlorid 
• 33027-39-3 C₁₆H₁₄Cl₂ 
• 30979-49-8 1,1-dibromo-2,2-diphenyl-3-methylcyclopropane 
• 1493-60-3 1,1-difluoro-1,2-diphenyl-propane 
• 109057-73-0 (2-fluoro-1-methoxypropane-1,1-diyl)dibenzene 

Relevant articles and documents

Recyclable and reusable PdCl2(PPh3)2/PEG-400/H2O system for the hydrophenylation of alkynes with sodium tetraphenylborate

A stable and efficient PdCl2(PPh3)2/PEG-400/H2O catalytic system for the hydrophenylation reaction of alkynes has been developed. In the presence of 3 mol% PdCl2(PPh3)2 and 2 equiv. of HOAc, the hydrophenylation of both terminal and internal alkynes with sodium tetraphenylborate proceeded smoothly in a mixture of PEG-400 and water at room temperature or 50 °C to afford a variety of phenyl-substituted alkenes in moderate to high yields. The isolation of the products was easily performed by extraction with petroleum ether, and the PdCl2(PPh3)2/PEG-400/H2O system could be readily recycled and reused six times without apparent loss of catalytic activity.

Method for synthesizing 1, 2-disubstituted olefin through reaction of terminal group olefin and sulfoxide

The invention discloses a method for synthesizing 1, 2-disubstituted olefin by reaction of terminal olefin and sulfoxide. According to the method, terminal olefin with sulfoxide make reaction in one pot in the presence of ferric salt and hydrogen peroxide to generate the 1, 2-disubstituted olefin. sulfoxide is simultaneously used as a hydrocarbylation reagent and a solvent of olefin, and a reaction product is 1, 2-disubstituted olefin of which a terminal carbon atom in terminal olefin is coupled with a sulfoxide alkyl group, so that an olefin carbon chain is increased; the reaction conditionsare mild, the selectivity is high, the yield is high, and industrial production is facilitated.

Photoredox-Catalyzed Benzylic Esterification via Radical-Polar Crossover

Photoredox-catalyzed C-O bond formation reactions are reported. The decarboxylative esterification reaction allows the conversion of a variety of arylacetic acids into the corresponding benzyl carboxylates. Furthermore, the use of (diacetoxyiodo)benzene allows the conversion of the benzylic C-H bond through hydrogen atom transfer. The reactions were applied to the divergent transformation of pharmaceuticals via decarboxylative or C-H esterification reactions.