2077-32-9

Basic information

• Product Name: (E)-3,β-Dimethylstyrene
• Synonyms: (E)-3,β-Dimethylstyrene;1-Methyl-3-[(E)-1-propenyl]benzene
• CAS NO: 2077-32-9
• Molecular Formula: C₁₀H₁₂
• Molecular Weight: 132.2
• Mol File: 2077-32-9.mol
• Article Data: 10

Chemical Properties

• Boiling Point: 197-198 °C
• Appearance: /
• Density: 0.901±0.06 g/cm3(Predicted)
• CAS DataBase Reference: (E)-3,β-Dimethylstyrene(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-3,β-Dimethylstyrene(2077-32-9)
• EPA Substance Registry System: (E)-3,β-Dimethylstyrene(2077-32-9)

Safety Data

• Hazardous Substances Data: 2077-32-9(Hazardous Substances Data)

Usage

General Description

(E)-3,β-Dimethylstyrene is a chemical compound with the molecular formula C10H12. It is a colorless, flammable liquid with a pungent odor. (E)-3,β-Dimethylstyrene is primarily used as a monomer in the production of polymers and copolymers, such as styrene-butadiene rubber. It can also be used as a solvent in various industrial processes, as a chemical intermediate in the synthesis of other compounds, and as a polymerization inhibitor. (E)-3,β-Dimethylstyrene is considered to have low acute toxicity, but prolonged exposure to high concentrations may cause irritation to the skin, eyes, and respiratory system. It is important to handle this chemical with care and to follow safety guidelines when working with it.

Upstream product

• 3333-20-8 1-allyl-3-methylbenzene 
• 513-35-9 2-methyl-but-2-ene 
• 620-23-5 m-tolyl aldehyde 
• 1530-32-1 ethyltriphenylphosphonium bromide 
• 6628-06-4 2-allyl-4-methylphenol 
• 23431-48-3 allyl p-tolyl ether 
• 32019-31-1 1-(3-methylphenyl)-1-propanol 
• 39835-02-4 2-Allyl-4-methylphenyl-diaethylphosphat 

Downstream Products

• 1616356-62-7 1,1,1-trifluoro-N-(1-(m-tolyl)propan-2-yl)methanesulfonamide 

Relevant articles and documents

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.

Superelectrophilic Fe(III)-Ion Pairs as Stronger Lewis Acid Catalysts for (E)-Selective Intermolecular Carbonyl-Olefin Metathesis

An intermolecular carbonyl-olefin metathesis reaction is described that relies on superelectrophilic Fe(III)-based ion pairs as stronger Lewis acid catalysts. This new catalytic system enables selective access to (E)-olefins as carbonyl-olefin metathesis products. Mechanistic investigations suggest the regioselective formation and stereospecific fragmentation of intermediate oxetanes to be the origin of this selectivity. The optimized conditions are general for a variety of aryl aldehydes and trisubstituted olefins and are demonstrated for 28 examples in up to 64% overall yield.

Nitrogen-Doped Carbon-Encapsulated Nickel/Cobalt Nanoparticle Catalysts for Olefin Migration in Allylarenes

Olefin migration in allylarenes is typically performed with precious-metal-based homogeneous catalysts. In contrast, very limited progress has been made with the use of cheap, Earth-abundant base metals as heterogeneous catalysts for these transformations—in spite of the obvious economic and environmental advantages. Herein, we report on the use of an easily prepared heterogeneous catalyst material for the migration of olefins, in particular, for allylarenes. The catalyst material consists of nickel/cobalt alloy nanoparticles encapsulated in nitrogen-doped carbon shells. The encapsulated nanoparticles are stable in air and are easily collected by centrifugation, filtration, or magnetic separation. Furthermore, we demonstrate that the catalysts can be reused several times and provide continuously high yields of the olefin-migration product.