2077-30-7

Basic information

• Product Name: (E)-1-(4-Methylphenyl)propene
• Synonyms: (E)-1-(4-Methylphenyl)propene;(E)-4,β-Dimethylstyrene;(E)-β,4-Dimethylstyrene;1-Methyl-4-[(E)-1-propenyl]benzene;4-Methyl-1-[(E)-1-propenyl]benzene
• CAS NO: 2077-30-7
• Molecular Formula: C₁₀H₁₂
• Molecular Weight: 132.2
• Mol File: 2077-30-7.mol
• Article Data: 42

Chemical Properties

• Melting Point: -18°C
• Boiling Point: 179.15°C (estimate)
• Appearance: /
• Density: 0.9019
• Refractive Index: 1.5410
• CAS DataBase Reference: (E)-1-(4-Methylphenyl)propene(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-1-(4-Methylphenyl)propene(2077-30-7)
• EPA Substance Registry System: (E)-1-(4-Methylphenyl)propene(2077-30-7)

Safety Data

• Hazardous Substances Data: 2077-30-7(Hazardous Substances Data)

Usage

General Description

(E)-1-(4-Methylphenyl)propene is a chemical compound with the molecular formula C10H12. It is also known as p-methylstyrene and is classified as an alkene due to its double bond between carbon atoms. It is a colorless liquid with a strong odor, and it is commonly used as a monomer in the production of polymers and plastics. It has applications in the manufacturing of synthetic rubbers, resins, and thermoplastic elastomers. (E)-1-(4-Methylphenyl)propene is also used as a chemical intermediate in the production of pharmaceuticals and fragrances. Additionally, it is important to note that this compound is flammable and should be handled and stored with caution.

Upstream product

• 104-85-8 para-methylbenzonitrile 
• 104-87-0 4-methyl-benzaldehyde 
• 1530-32-1 ethyltriphenylphosphonium bromide 
• 925-90-6 ethylmagnesium bromide 
• 25574-04-3 1-p-tolyl-1-propanol 
• 73853-94-8 (RS)-2-(p-tolyl)butyric acid 
• 513-35-9 2-methyl-but-2-ene 
• 917-54-4 methyllithium 
• 156423-16-4 (E)-1-(2-iodovinyl)-4-methylbenzene 
• 589-18-4 4-Methylbenzyl alcohol 
• 599-70-2 ethyl phenyl sulfone 
• 4736-60-1 ethyltriphenylphosphonium iodide 
• 101671-00-5 (E)-2-(4-methylphenyl)-1-nitroethene 
• 107-06-2 1,2-dichloro-ethane 

Downstream Products

• 2077-29-4 (Z)-1-(4-tolyl)-1-propene 
• 123500-84-5 2-Methoxy-1-((2S,3R)-3-methyl-2-p-tolyl-cyclobutyl)-ethanone 
• 56578-35-9 4-methyl-cinnamaldehyde 
• 104-87-0 4-methyl-benzaldehyde 
• 50617-92-0 (1S,2S)-1-(4-methylphenyl)-1-propene oxide 
• 1074-55-1 p-n-propyltoluene 
• 1616356-63-8 1,1,1-trifluoro-N-(1-(p-tolyl)propan-2-yl)methanesulfonamide 
• 2114-34-3 1-(p-tolyl)propan-2-yl acetate 
• 1404433-48-2 (1R,2R,3R)-2,6-dimethylphenyl 2-methyl-3-p-tolylcyclopropanecarboxylate 
• 2096-86-8 p-Tolylaceton 
• 5337-93-9 4'-methylpropiophenone 

Relevant articles and documents

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Method for synthesizing alkyl olefin through coupling of double-bond carbon-hydrogen bond and saturated carbon-hydrogen bond

The invention discloses a method for synthesizing alkyl olefin through coupling of a double-bond carbon-hydrogen bond and a saturated carbon-hydrogen bond. According to to the method, one-pot reactionis implemented on olefin and sulfoxide in the presence of ferric salt and hydrogen peroxide to generate alkyl olefin; in the method, sulfoxide is simultaneously used as a hydrocarbylation reagent anda solvent of olefin, and a reaction product is alkyl olefin from sulfoxide alkyl coupled with olefin carbon atoms, so that an olefin carbon chain is increased; the reaction conditions are mild, the selectivity is good, the yield is high, and industrial production is facilitated.

A donor-acceptor complex enables the synthesis of: E -olefins from alcohols, amines and carboxylic acids

Olefins are prevalent substrates and functionalities. The synthesis of olefins from readily available starting materials such as alcohols, amines and carboxylic acids is of great significance to address the sustainability concerns in organic synthesis. Metallaphotoredox-catalyzed defunctionalizations were reported to achieve such transformations under mild conditions. However, all these valuable strategies require a transition metal catalyst, a ligand or an expensive photocatalyst, with the challenges of controlling the region- and stereoselectivities remaining. Herein, we present a fundamentally distinct strategy enabled by electron donor-acceptor (EDA) complexes, for the selective synthesis of olefins from these simple and easily available starting materials. The conversions took place via photoactivation of the EDA complexes of the activated substrates with alkali salts, followed by hydrogen atom elimination from in situ generated alkyl radicals. This method is operationally simple and straightforward and free of photocatalysts and transition-metals, and shows high regio- and stereoselectivities.

Process for isomerizing and converting (Z)-olefins to (E)-olefins

The invention belongs to the technical field of metal catalytic synthesis, and discloses a method for isomerizing and converting (Z)-olefins into (E)-olefins. The (E)-olefins are prepared through a reaction at -30-80 DEG C for 0.5-48 h by using a combination of CoX2 and a PNP or PAO ligand as a catalyst in the presence of an activating reagent; and a molar ratio of the (Z)-olefins to the CoX2 to the PNP or PAO ligand to the activating reagent is 1:(0.00001-0.10):(0.00001-0.10):(0.00003-0.30). The catalyst used in the invention is the combination of the cheap metal cobalt salt and the simple and easily available ligand, no other toxic transition metal (such as ruthenium, rhodium and palladium) salt is added in the reaction, and the method also has the advantages of cheap and easily available raw material, good functional group tolerance, mild reaction conditions, simplicity in operation, and e atom economy of 100%.