3454-07-7

Basic information

• Product Name: 4-ETHYLSTYRENE
• Synonyms: 1-Ethenyl-4-ethylbenzene;1-ethyl-4-ethenylbenzene;1-Ethyl-4-vinylbenzene;4-Ethenylstyrene;benzene,1-ethenyl-4-ethyl-;p-Ethylstyrene;p-Ethylvinylbenzene;Styrene, p-ethyl-
• CAS NO: 3454-07-7
• Molecular Formula: C₁₀H₁₂
• Molecular Weight: 132.2
• EINECS: 222-381-4
• Mol File: 3454-07-7.mol
• Article Data: 21

Chemical Properties

• Melting Point: -49.7°C
• Boiling Point: 189.08°C
• Flash Point: 62.1°C
• Appearance: /
• Density: 0.8884
• Vapor Pressure: 0.685mmHg at 25°C
• Refractive Index: 1.5348
• Storage Temp.: Amber Vial, Room Temperature
• Solubility: Chloroform (Slightly), Ethyl Acetate (Slightly)
• CAS DataBase Reference: 4-ETHYLSTYRENE(CAS DataBase Reference)
• NIST Chemistry Reference: 4-ETHYLSTYRENE(3454-07-7)
• EPA Substance Registry System: 4-ETHYLSTYRENE(3454-07-7)

Safety Data

• Hazardous Substances Data: 3454-07-7(Hazardous Substances Data)

Usage

Description

4-Ethylstyrene, also known as 1-Ethyl-4-vinylbenzene, is an organic compound that is primarily recognized as a pollutant resulting from the pyrolysis and combustion of waste lubricant oil from diesel cars. It is characterized by its aromatic structure and vinyl group, which may contribute to its formation and reactivity in various chemical processes.

Uses

Used in Environmental Monitoring:
4-Ethylstyrene is used as a marker for [detecting the presence of pollutants] in [the process of pyrolysis and combustion of waste lubricant oil from diesel cars]. Its identification in environmental samples can help assess the extent of pollution and the effectiveness of emission control measures.
Used in Chemical Research:
4-Ethylstyrene can be used as a research compound for [studying the chemical reactions and properties] of [aromatic compounds with vinyl groups]. Understanding its reactivity and behavior in different conditions can provide insights into the formation and degradation mechanisms of similar pollutants.
Used in Industrial Processes:
Although primarily recognized as a pollutant, 4-Ethylstyrene may also find application in [industrial processes involving the production and use of lubricant oils] for [improving the efficiency and reducing the environmental impact of these processes]. This could involve the development of new additives or modifications to existing processes to minimize the formation of 4-Ethylstyrene and other pollutants.
Used in Automotive Industry:
In the automotive industry, 4-Ethylstyrene can be used as a [catalyst or intermediate] in [the production of more environmentally friendly lubricants] for diesel cars. By understanding its formation and reactivity, chemists can develop strategies to reduce its emission and improve the overall sustainability of the automotive industry.

InChI:InChI=1/C10H12/c1-3-9-5-7-10(4-2)8-6-9/h3,5-8H,1,4H2,2H3

Upstream product

• 937-30-4 4-ethylacetophenone 
• 40307-11-7 1-ethyl-4-ethynylbenzene 
• 1779-49-3 Methyltriphenylphosphonium bromide 
• 4748-78-1 4-ethylbenzylaldehyde 
• 105-05-5 1,4-diethylbenzene 
• 100-41-4 ethylbenzene 
• 41138-71-0 spiro<5.7>tetradeca-1,4-dien-3-one 
• 22545-13-7 2-(4'-ethylphenyl)ethanol 
• 10224-91-6 1,1-bis-(4-ethyl-phenyl)-ethane 
• 87482-34-6 3-ethylidenespiro<5.5>undeca-1,4-diene 
• 87482-33-5 3-methylenespiro<5.5>undeca-1.4-diene 
• 87482-38-0 dispiro<2.2.5.2>trideca-4,12-diene 
• 116059-93-9 dispiro<2.2.6.2>tetradeca-4,13-diene 
• 62985-49-3 3-methylenespiro<5.7>trideca-1,4-diene 

Downstream Products

• 2229-07-4 methyl radical 
• 55185-65-4 4-vinylbenzyl 
• 169272-14-4 (+/-)-2-(4-ethylphenyl)oxirane 
• 4748-78-1 4-ethylbenzylaldehyde 
• 937-30-4 4-ethylacetophenone 
• 93342-76-8 1-ethyl-4-(1,2-dibromo-ethyl)-benzene 

Relevant articles and documents

Ultrasmall and Stable Pd and Pt Nanoparticles Within Zeolite HY Through Impregnated Method with Enhanced Semihydrogenation Selectivity

In this study, with zeolite HY as support, ultrasmall Pd and Pt nanoparticles were successfully immobilized into zeolite HY crystals through an optimized impregnation approach. The success of this new approach mainly relied on the selecting appropriate metal precursor to make Pd and Pt element exists with the cation forms, which can facilitate their diffusion into inner channels of zeolite HY through electrostatic attraction and capillary force. Integration of confinement effect of zeolite HY, taking zeolite HY (Si/Al = 3) encapsulation of ultrasmall Pd NPs (Pd@HY-3) as an instance, Pd@HY-3 catalyst exhibited enhanced catalytic selectivity in semihydrogenation of alkynes, in comparison with Pd/HY, Pd/C, Pd/Al2O3 and lindlar catalysts. This improved catalytic selectivity can be attributed to the constrained upright adsorption conformation of reactant alkyne and corresponding product alkene on encapsulated Pd surface to make alkyne adsorption on Pd surface with larger adsorption energy than that of alkene, thus achieving the high catalytic selectivity. Graphic Abstract: [Figure not available: see fulltext.]

Phenylacetylene semihydrogenation over a palladium pyrazolate hydrogen-bonded network

The palladium azolate/carboxylate network (Pd-dmpzc) catalyses the selective hydrogenation of phenylacetylene to styrene in water. Under optimised conditions, at a Pd:NaBH4 ratio of 1:100 at 40 °C, Pd-dmpzc provided much better results than Pd(OAc)2 or PdCl2(CH3CN)2. Analysis of the recovered catalyst revealed the presence of different Pd2+ species and Pd0 NPs which contributed in the catalytic reaction.

Seed-mediated Growth of Alloyed Ag-Pd Shells toward Alkyne Semi-hydrogenation Reactions under Mild Conditions?

Ag@Ag-Pdx core-shell nanocomposites with various Ag/Pd ratio were deposited on Ag nanoplates using a seed growth method. When physically loaded on C3N4, Ag@Ag-Pd0.077/C3N4 with optimized Ag/Pd ratio could accomplish high catalytic performance for the semi-hydrogenation of phenylacetylene as well as other aliphatic (both terminal and internal alkynes) alkynes and phenylcycloalkynes containing functional groups (such as ester, hydroxyl, ethyl groups) under room temperature and 1 atm H2. The alloying and ensemble effects are used to interpret such catalytic performance.