3404-75-9

Basic information

• Product Name: 3-METHYL-2-HEPTENE
• Synonyms: 3-METHYL-2-HEPTENE;(2E)-3-Methyl-2-heptene;3-methyl-hept-2-ene;3-Methyl-2-heptene (cis- and trans- mixture);3-Methyl-2-heptene (cis- and trans- mixture)
• CAS NO: 3404-75-9
• Molecular Formula: C₈H₁₆
• Molecular Weight: 112.21
• Mol File: 3404-75-9.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 120°Cat760mmHg
• Flash Point: 9.2°C
• Appearance: /
• Density: 0.728g/cm³
• Refractive Index: 1.4180-1.4200
• CAS DataBase Reference: 3-METHYL-2-HEPTENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3-METHYL-2-HEPTENE(3404-75-9)
• EPA Substance Registry System: 3-METHYL-2-HEPTENE(3404-75-9)

Safety Data

• RIDADR: 3295
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 3404-75-9(Hazardous Substances Data)

Usage

General Description

3-Methyl-2-heptene, also known as 2-heptene, 3-methyl-, is an organic compound with the chemical formula C8H16. It is a clear, colorless liquid with a characteristic odor, and it is insoluble in water but soluble in organic solvents. 3-Methyl-2-heptene is used primarily as a chemical intermediate in the production of various other compounds such as plasticizers, detergents, and surfactants. It is also used as a solvent and as a raw material in the synthesis of polymers and resins. 3-Methyl-2-heptene is considered to be a flammable liquid and should be handled and stored with appropriate safety precautions.

Upstream product

• 106-98-9 1-butylene 
• 104-76-7 2-Ethylhexyl alcohol 
• 5582-82-1 3-methyl-3-heptanol 
• 7664-93-9 sulfuric acid 
• 121826-81-1 C₁₂H₂₄B^(1-)*Li⁽¹⁺⁾ 
• 77-78-1 dimethyl sulfate 
• 121826-88-8 C₉H₁₈B^(1-)*Li⁽¹⁺⁾ 

Downstream Products

• 589-81-1 3-methylheptane 

Relevant articles and documents

Impact of Alkali and Alkali-Earth Cations on Ni-Catalyzed Dimerization of Butene

The presence of alkali (Na+ or Li+) or alkali-earth (Ca2+ or Mg2+) cations adjusting the acid-base properties on amorphous silica-alumina influences markedly the catalytic properties of supported Ni for 1-butene dimerization. The low concentration of Br?nsted acid sites on these catalysts reduces the double bond isomerization of butene and inhibits the formation of dimethylhexene as primary product. While the alkali and alkali-earth cations act as weak Lewis acid sites, only Ni2+ sites are catalytically active for dimerization of 1-butene. n-Octene and methylheptene are formed selectively as primary products; dimethylhexene is a secondary product. The open environment of the Ni2+ sites does not induce different reaction pathways compared to Ni2+ in the pores of zeolites.

Cyclization of methyl-substituted 6-heptenyl radicals

(Matrix presented) The behavior of a series of methyl-substituted 6-heptenyl radicals, generated from the corresponding iodides ((Me3Si)3SiH, AIBN in benzene at 80°C), has been investigated. The stereoselectivity of the 6-exo cyclizations, affording dimethylcyclohexanes, is low, and sizable quantities of methylcycloheptane, generated via 7-endo cyclization, are also produced.