10074-43-8

Basic information

• Product Name: Benzene,1-ethenyl-4-hexyl-
• Synonyms: Styrene,p-hexyl- (6CI,7CI,8CI); 4-Hexylstyrene; p-Hexylstyrene
• CAS NO: 10074-43-8
• Molecular Formula: C14H20
• Molecular Weight: 188.313
• Mol File: 10074-43-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: Benzene,1-ethenyl-4-hexyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene,1-ethenyl-4-hexyl-(10074-43-8)
• EPA Substance Registry System: Benzene,1-ethenyl-4-hexyl-(10074-43-8)

Safety Data

• Hazardous Substances Data: 10074-43-8(Hazardous Substances Data)

Usage

General Description

Benzene, 1-ethenyl-4-hexyl, is a chemical compound with the molecular formula C18H22. It is a derivative of benzene, with an ethenyl (vinyl) group at the first carbon and a hexyl group at the fourth carbon. Benzene,1-ethenyl-4-hexyl- is commonly used in the production of polymers and plastics, as well as in the manufacturing of adhesives and coatings. It is also a key ingredient in the production of synthetic rubber and other industrial materials. However, exposure to benzene and its derivatives has been linked to health concerns, including an increased risk of cancer and other adverse effects. Therefore, proper handling and protective measures are necessary when working with this chemical.

Upstream product

• 23703-22-2 1-bromo-4-n-hexylbenzene 
• 7486-35-3 tri-n-butyl(vinyl)tin 
• 37592-72-6 1-(4-hexyl-phenyl)-ethanone 
• 1077-16-3 hexylbenzene 
• 116059-93-9 dispiro<2.2.6.2>tetradeca-4,13-diene 
• 100963-63-1 1-(4-hexyl-phenyl)-ethanol 

Relevant articles and documents

Regio-specific polyacetylenes synthesized from anionic polymerizations of template monomers

Substituted polyacetylenes with alkylphenyl side groups and head-to-head regioregularity were prepared through anionic living polymerization of template monomers and subsequent dehydrogenation process. The template monomers have the structure of 2, 3-disubstituted-1, 3-butadienes prepared by palladium-catalyzed Kumada coupling of the corresponding vinyl bromides. Anionic polymerizations of the template monomers produced narrow disperse substituted polybutadiene precursors with exclusive 1, 4-enchainment. The precursors were converted into soluble polyacetylene derivatives via two methods, e.g., bromination followed by elimination of HBr, and direct dehydrogenation by 2, 3-dichloro-5, 6-dicyano-1, 4-benzoquinone (DDQ), both resulting in dark colored products with significant red shift in UV spectra. The obtained head-to-head polyacetylene derivatives exhibited highly thermal stability, possibly due to trans-rich and/or head-to-head chain configurations. The microstructures of the poly(2, 3-dialkylphenyl butadiene) precursors were analyzed in detail using NMR spectroscopy with regard to the solvent effect during polymerization. Block copolymers containing substituted polyacetylene segments were prepared through sequential anionic polymerization of different monomers, followed by dehydrogenation transformation. The present synthesis may serve as a new strategy for tailoring molecular structures of polyacetylene-based polymers by virtue of anionic living polymerization techniques.

NOVEL METHOD FOR PREPARING STYRENIC OLEFINS

The present invention relates to a method for preparing a styrenic olefin. The method of the present invention comprises the steps of: adding a catalyst and a solvent in a reactor and heating the reactor to create a reflux state; adding an alcohol starting material to the reactor dropwise at a constant rate; removing water generated by adding the alcohol starting material from the reactor; and purifying the obtained styrenic olefin. The method of the present invention is advantageous in minimizing byproducts and preparing styrenic olefins having a variety of substituents in high yield.

FLASH VACUUM THERMOLYSIS OF DISPIROALKADIENES

The Flash Vacuum Thermolysis (FVT) of dispirotetradeca -4,13-diene (7a). dispirotrideca-4,12-diene (7b) and dispirodeca-4,9-diene (7e) at 500-750 deg C is reported.The complicated reaction mixture from 7a and 7b (Scheme 3) included at lower temperatures vinylspiroalkadienes 9, ethylidenespiroalkadiene 10b, β-ethylcycloalkabenzenes 11, while at higher temperatures, p-n-alkyl-(5) and p-sec-alkylstyrenes 14 and p-divinylbenzene (15) dominated.Product formation is explained by invoking diradicals 8,6 and 12 as well as the cyclophanes 1 and 13 as intermediates.For 7e, the product mixture was less complicated and consisted of p-ethylstyrene (5e), 15 and, unexpectedly,p-isopropylstyrene (14e) which contains one carbon more than the starting material.The analysis and interpretation of product formation largely confirms previously suggested reaction pathways and furnishes further interesting details.However, new and unexpected features are also encountered, especially in the fragmentations of 1 and 13 which may stimulate future investigations on the thermal behaviour of these relatively simple hydrocarbons.