1124-20-5

Basic information

• Product Name: m,alpha-dimethylstyrene
• Synonyms: m,alpha-dimethylstyrene;ɑ,3-Dimethylstyrene;3,α-Dimethylstyrene;m-Isopropenyltoluene;α,3-Dimethylstyrene;^a,3-Dimethylstyrene;alpha,3-Dimethylstyrene;m,α-dimethylstyrene
• CAS NO: 1124-20-5
• Molecular Formula: C₁₀H₁₂
• Molecular Weight: 132.2023
• EINECS: 214-394-9
• Mol File: 1124-20-5.mol
• Article Data: 31

Chemical Properties

• Melting Point: -59.27°C (estimate)
• Boiling Point: 189.15°C (estimate)
• Flash Point: 58.2 °C
• Appearance: /
• Density: 0.9010
• Vapor Pressure: 0.911mmHg at 25°C
• Refractive Index: 1.5310
• CAS DataBase Reference: m,alpha-dimethylstyrene(CAS DataBase Reference)
• NIST Chemistry Reference: m,alpha-dimethylstyrene(1124-20-5)
• EPA Substance Registry System: m,alpha-dimethylstyrene(1124-20-5)

Safety Data

• HazardClass: 3
• Hazardous Substances Data: 1124-20-5(Hazardous Substances Data)

Usage

General Description

m,alpha-dimethylstyrene is a chemical compound that belongs to the family of styrenic compounds. It is a colorless to pale yellow liquid with a strong odor, and it is insoluble in water but soluble in organic solvents. It is primarily used in the production of polymers and resins, where it exhibits excellent stability and heat resistance. It is also used as a building block for the synthesis of specialty chemicals and as a reactive diluent in coatings and adhesives. Additionally, m,alpha-dimethylstyrene is utilized as a monomer for the production of impact-resistant and high-temperature resistant polystyrene plastics. However, it should be handled with caution, as it may cause irritation to the skin, eyes, and respiratory system upon exposure.

InChI:InChI=1/C10H12/c1-8(2)10-6-4-5-9(3)7-10/h4-7H,1H2,2-3H3

Upstream product

• 917-64-6 methyl magnesium iodide 
• 99-36-5 1-methoxycarbonyl-3-methylbenzene 
• 67-56-1 methanol 
• 78-80-8 2-methylbut-1-en-3-yne 
• 19714-73-9 1-cyclopropyl-3-methylbenzene 
• 18611-37-5 4-Chlor-2-chlormethylen-3-isopropyliden-1,1-dimethyl-cyclobutan 
• 106-99-0 buta-1,3-diene 
• 78-79-5 isoprene 
• 75-24-1 trimethylaluminum 
• 1711-06-4 3-Methylbenzoyl chloride 
• 1779-49-3 Methyltriphenylphosphonium bromide 
• 585-74-0 3-Methylacetophenone 
• 7664-93-9 sulfuric acid 
• 98-83-9 isopropenylbenzene 

Downstream Products

• 50910-01-5 1-(2,5-Dimethyl-phenyl)-3-(1-methyl-1-m-tolyl-ethyl)-urea 
• 42609-68-7 1-(2,4-Dimethyl-phenyl)-3-(1-methyl-1-m-tolyl-ethyl)-urea 
• 20605-65-6 1-methyl-1-(3-methylphenyl)ethylium 
• 98-83-9 isopropenylbenzene 
• 13240-60-3 3-(2-Chloro-2-propyl)toluene 
• 535-77-3 m-cymene 
• 585-74-0 3-Methylacetophenone 
• 1064000-83-4 1-(2,2-dibromo-1-methylcyclopropyl)-3-methylbenzene 
• 1092399-41-1 (R)-ethyl 2-hydroxy-4-m-tolylpent-4-enoate 
• 1198746-11-0 (R)-methyl 2-hydroxy-4-m-tolyl-2-(trifluoromethyl)pent-4-enoate 
• 1262985-45-4 (S)-(+)-4,4,5,5-tetramethyl-2-(2-(m-tolyl)propyl)-1,3,2-dioxaborolane 
• 29123-93-1 3-m-methylphenyl-3-buten-1-ol 
• 1071629-10-1 2-hydroxy-4-(3-methylphenyl)-2-trifluoromethyl-pent-4-enoic acid ethyl ester 
• 875542-01-1 (2R)-2-(3-methylphenyl)propane-1,2-diol 

Relevant articles and documents

Electrochemical oxidative radical oxysulfuration of styrene derivatives with thiols and nucleophilic oxygen sources

Oxydifunctionalization of olefins represents a powerful tool and yet poses a challenging task. Previous methods have usually required a stoichiometric amount of a strong oxidant and an expensive transition-metal catalyst. This work describes the first example of the electrochemical oxysulfuration reaction of olefins with thiols and nucleophilic oxygen sources. This electrochemical difunctionalization reaction is conducted under catalyst- and oxidant-free conditions, and shows good substrate generality, affording thio-substituted alcohols, ethers and γ-lactones in good chemical yields and with excellent regioselectivities. This work represents a new and green strategy for the difunctionalization of olefins, and also provides a complementary and highly valuable prospect for current methodologies for the synthesis of thio-substituted compounds.

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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.