3404-78-2

Basic information

• Product Name: 2,5-DIMETHYL-2-HEXENE
• Synonyms: 2,5-dimethyl-hex-2-ene;2,5-Dimethylhex-2-ene;2-hexene,2,5-dimethyl-;2,5-DIMETHYL-2-HEXENE 95+%;2,5-DIMETHYL-2-HEXENE
• CAS NO: 3404-78-2
• Molecular Formula: C₈H₁₆
• Molecular Weight: 112.21
• Mol File: 3404-78-2.mol
• Article Data: 11

Chemical Properties

• Melting Point: -103.01°C (estimate)
• Boiling Point: 113 °C
• Flash Point: 11°C(lit.)
• Appearance: /
• Density: 0,72 g/cm3
• Vapor Pressure: 23.7mmHg at 25°C
• Refractive Index: 1.4130-1.4160
• CAS DataBase Reference: 2,5-DIMETHYL-2-HEXENE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-DIMETHYL-2-HEXENE(3404-78-2)
• EPA Substance Registry System: 2,5-DIMETHYL-2-HEXENE(3404-78-2)

Safety Data

• Statements: 10
• Safety Statements: 16
• RIDADR: 1216
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 3404-78-2(Hazardous Substances Data)

Usage

Description

2,5-DIMETHYL-2-HEXENE is a colorless liquid chemical compound with the molecular formula C8H16, characterized by a sweet, fruity odor. It is classified as an alkene due to the presence of a double bond between two carbon atoms, and is commonly utilized as an intermediate in the synthesis of various chemical compounds.

Uses

Used in Fragrance Industry:
2,5-DIMETHYL-2-HEXENE is used as a fragrance ingredient for its sweet, fruity scent, contributing to the creation of various perfumes and scented products.
Used in Flavoring Industry:
It serves as a flavoring agent, enhancing the taste profiles of food and beverages by imparting a fruity note.
Used in Pharmaceutical Industry:
2,5-DIMETHYL-2-HEXENE is used as an intermediate in the production of pharmaceuticals, aiding in the synthesis of various medicinal compounds.
Used in Solvent Applications:
It functions as a solvent in various chemical processes, facilitating reactions and improving the efficiency of industrial operations.
Used in Plastics Manufacturing:
2,5-DIMETHYL-2-HEXENE is used in the production of plastics, contributing to the formation of polymers and affecting their properties.
Used in Rubber Industry:
It is employed in the manufacture of rubber, where it may influence the rubber's characteristics and performance.
Used in Dye Production:
2,5-DIMETHYL-2-HEXENE is utilized in the production of dyes, playing a role in the synthesis of colorants for various applications.
It is crucial to handle 2,5-DIMETHYL-2-HEXENE with care due to its potential hazards, such as being harmful if inhaled, swallowed, or in contact with the skin, and its flammability.

InChI:InChI=1/C8H16/c1-7(2)5-6-8(3)4/h5,8H,6H2,1-4H3

Upstream product

• 73331-62-1 N-(2,2,5,5-tetramethylpyrrolidinyl)nitrene 
• 627-58-7 2,5-dimethyl-1,5-hexadiene 
• 7664-41-7 ammonia 
• 764-13-6 2,5-Dimethyl-2,4-hexadiene 
• 19403-24-8 3,3,6,6-tetramethyl-1,2-diazacyclohex-2-ene 

Downstream Products

• 592-13-2 2,5-dimethylhexane 
• 692-70-6 (E)-2,5-dimethylhex-3-ene 
• 6975-92-4 2,5-dimethyl-1-hexene 
• 67-64-1 acetone 
• 110-03-2 2,5-dimethyl-2,5-hexanediol 
• 24577-81-9 2,2-dimethyl-3-isobutyl-1,1-dichlorocyclopropane 

Relevant articles and documents

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Dendrimer-Encapsulated Pd Nanoparticles, Immobilized in Silica Pores, as Catalysts for Selective Hydrogenation of Unsaturated Compounds

Heterogeneous Pd-containing nanocatalysts, based on poly (propylene imine) dendrimers immobilized in silica pores and networks, obtained by co-hydrolysis in situ, have been synthesized and examined in the hydrogenation of various unsaturated compounds. The catalyst activity and selectivity were found to strongly depend on the carrier structure as well as on the substrate electron and geometric features. Thus, mesoporous catalyst, synthesized in presence of both polymeric template and tetraethoxysilane, revealed the maximum activity in the hydrogenation of various styrenes, including bulky and rigid stilbene and its isomers, reaching TOF values of about 230000 h?1. Other mesoporous catalyst, synthesized in the presence of polymeric template, but without addition of Si(OEt)4, provided the trans-cyclooctene formation with the selectivity of 90–95 %, appearing as similar to homogeneous dendrimer-based catalysts. Microporous catalyst, obtained only on the presence of Si(OEt)4, while dendrimer molecules acting as both anchored ligands and template, demonstrated the maximum activity in the hydrogenation of terminal linear alkynes and conjugated dienes, reaching TOF values up to 400000 h?1. Herein the total selectivity on alkene in the case of terminal alkynes and conjugated dienes reached 95–99 % even at hydrogen pressure of 30 atm. The catalysts synthesized can be easily isolated from reaction products and recycled without significant loss of activity.

Mesoporous organic Pd-containing catalysts for the selective hydrogenation of conjugated hydrocarbons

Palladium catalysts supported on ordered organic mesoporous polymers were synthesized. The catalysts are characterized by the narrow size distribution of palladium nanoparticles with an average particle size of 2.2-5.2 nm. They demonstrate high catalytic activity and selectivity in phenylacetylene hydrogenation (896-2590 min-1, selectivity 89-98%). High activity and selectivity for alkenes are observed in the hydrogenation of conjugated dienes (for isoprene, TOF = 1850-5000 min-1, selectivity 99%; for 2,5-dimethyl-2,4-hexadiene, TOF = = 1294-2400 min-1, selectivity 100%; for 1,4-diphenyl-1,3-butadiene, TOF = 14-22 min-1, selectivity 7-16%). A dependence of the selectivity on the nature of the support and substrate was found for the hydrogenation of 1,4-diphenyl-1,3-butadiene.