6144-04-3

Basic information

• Product Name: α-Methylstyrene dimer
• Synonyms: Benzene, (1-methylethenyl)-, dimer
• CAS NO: 6144-04-3
• Molecular Formula: C18H20
• Molecular Weight: 236.3514
• Mol File: 6144-04-3.mol
• Article Data: 439

Chemical Properties

• Boiling Point: 162.5°Cat760mmHg
• Flash Point: 45.6°C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 2.83mmHg at 25°C
• CAS DataBase Reference: α-Methylstyrene dimer(CAS DataBase Reference)
• NIST Chemistry Reference: α-Methylstyrene dimer(6144-04-3)
• EPA Substance Registry System: α-Methylstyrene dimer(6144-04-3)

Safety Data

• Hazardous Substances Data: 6144-04-3(Hazardous Substances Data)

Usage

General Description

α-Methylstyrene dimer, also known as 1,3-Diphenyl-1-Butene, is a chemical compound that is formed by the dimerization of α-methylstyrene. It is a colorless to pale yellow liquid with a pungent, fruity odor. α-Methylstyrene dimer is used as a monomer for the production of thermoplastic polymers, such as polystyrene and other copolymers. It is also used as a chemical intermediate in the synthesis of various organic compounds. α-Methylstyrene dimer is considered to be a potential environmental pollutant and may cause irritation to the skin, eyes, and respiratory system. Therefore, proper handling and storage of this chemical are necessary.

InChI:InChI=1/2C9H10/c2*1-8(2)9-6-4-3-5-7-9/h2*3-7H,1H2,2H3

Upstream product

• 98-82-8 Isopropylbenzene 
• 60-29-7 diethyl ether 
• 64-17-5 ethanol 
• 934-53-2 cumenyl chloride 
• 996-82-7 sodium diethylmalonate 
• 557-93-7 2-bromoprop-1-ene 
• 704-79-0 3-phenylbut-2-enoic acid 
• 860701-93-5 dimethyl-(1-methyl-1-phenyl-ethyl)-amine oxide 
• 118-75-2 chloranil 
• 98-86-2 acetophenone 
• 80-15-9 Cumene hydroperoxide 
• 67-63-0 isopropyl alcohol 
• 71-43-2 benzene 
• 67-64-1 acetone 

Downstream Products

• 27421-06-3 3-methyl-4-(1-methyl-1-phenyl-ethyl)-phenol 
• 3044-70-0 2,6-dimethyl-4-phenyl-pyrylium; perchlorate 
• 100389-71-7 N-(1-methyl-1-phenyl-ethyl)-acrylamide 
• 114492-68-1 phenyl-acetic acid-(1-benzylidene-3-phenyl-but-2-enyl ester) 
• 64888-14-8 4,6-bis-(1-methyl-1-phenyl-ethyl)-pyrogallol 
• 2085-88-3 2-methyl-2-phenyloxirane 
• 58215-92-2 3-ethyl-6-methyl-6-phenyl-[1,3]oxazinane 
• 3174-78-5 2-(4-phenyl-[1,3]dioxan-4-yl)-ethanol 
• 92864-94-3 1,3-diacetoxy-3-phenyl-butane 
• 104294-60-2 4-amino-2-phenylbutan-2-ol 
• 107920-37-6 cyanocarbonyloxy-(2-phenyl-allyl)-malononitrile 
• 74796-57-9 2-oxo-4-phenyl-pent-3c-enenitrile 
• 4612-08-2 bis-(2-chloro-2-phenyl-propyl)-diazene-N,N'-dioxide 
• 75490-39-0 2,2-dimethyl-4-phenyl-valeronitrile 

Relevant articles and documents

Noble-metal-free deoxygenation of epoxides: Titanium dioxide as a photocatalytically regenerable electron-transfer catalyst

Catalytic deoxygenation of epoxides into the corresponding alkenes is a very important reaction in organic synthesis. Early reported systems, however, require noble metals, high reaction temperatures (>373 K), or toxic reducing agents. Here, we report a noble-metal-free heterogeneous catalytic system driven with alcohol as a reducing agent at room temperature. Photoirradiation (λ 2) with alcohol promotes efficient and selective deoxygenation of epoxides into alkenes. This noble-metal-free catalytic deoxygenation is facilitated by the combination of electron transfer from surface Ti3+ atoms on TiO2 to epoxides, which promotes deoxygenation of epoxides, and photocatalytic action of TiO2, which regenerates oxidized surface Ti atoms with alcohol as a reducing agent.

Palladium-Catalyzed Markovnikov Hydroaminocarbonylation of 1,1-Disubstituted and 1,1,2-Trisubstituted Alkenes for Formation of Amides with Quaternary Carbon

Hydroaminocarbonylation of alkenes is one of the most promising yet challenging methods for the synthesis of amides. Herein, we reported the development of a novel and effective Pd-catalyzed Markovnikov hydroaminocarbonylation of 1,1-disubstituted or 1,1,2-trisubstituted alkenes with aniline hydrochloride salts to afford amides bearing an α quaternary carbon. The reaction makes use of readily available starting materials, tolerates a wide range of functional groups, and provides a facile and straightforward approach to a diverse array of amides bearing an α quaternary carbon. Mechanistic investigations suggested that the reaction proceeded through a palladium hydride pathway. The hydropalladation and CO insertion are reversible, and the aminolysis is probably the rate-limiting step.

MnBr2 catalyzed regiospecific oxidative Mizoroki-Heck type reaction

Herein, we report an unprecedented regiospecific oxidative Mizoroki-Heck type reaction for the synthesis of ɑ-difluoromethyl homoallylic alcohols. The reaction shows broad substrate scopes and high functional group tolerance. Late-stage functionalization of complex biologically active molecules demonstrates the synthetic potential of this transformation. Mechanistic study supports the involvement of MnBr2 catalyzed radical 1,2-silyl transfer.