13172-91-3

Basic information

• Product Name: 5-METHYL-3-HEPTENE
• Synonyms: 5-METHYL-3-HEPTENE;Methylheptene;5-methyl-3-heptene(cis-andtrans-mixture);5-METHYL-3-HEPTENE (CIS- AND TRANS- MIXTURE) 98+%;5-Methyl-3-heptene (cis- and trans- mixture);5-methylhept-3-ene
• CAS NO: 13172-91-3
• Molecular Formula: C₈H₁₆
• Molecular Weight: 112.21
• Mol File: 13172-91-3.mol
• Article Data: 3

Chemical Properties

• Melting Point: -103.01°C (estimate)
• Boiling Point: 120.2°C (estimate)
• Flash Point: 10 °C
• Appearance: /
• Density: 0.71
• Refractive Index: 1.3990-1.4120
• Storage Temp.: 0-10°C
• CAS DataBase Reference: 5-METHYL-3-HEPTENE(CAS DataBase Reference)
• NIST Chemistry Reference: 5-METHYL-3-HEPTENE(13172-91-3)
• EPA Substance Registry System: 5-METHYL-3-HEPTENE(13172-91-3)

Safety Data

• RIDADR: 3295
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 13172-91-3(Hazardous Substances Data)

Usage

General Description

5-Methyl-3-heptene is a type of chemical compound, specifically an alkene or an organic compound composed of carbon and hydrogen. 5-Methyl-3-heptene is characterized by two features; a seven-carbon chain (heptene) and a methyl group (a carbon atom bonded to three hydrogen atoms) at the fifth carbon atom in the chain. Alkenes, like 5-Methyl-3-heptene, are unsaturated hydrocarbons that have at least one carbon-to-carbon double bond. They are generally reactive and are commonly used in chemical synthesis. The exact chemical properties and potential applications of 5-Methyl-3-heptene would depend on how the atomic structure is arranged in space, which isn't specified by its name alone. As with many chemicals, it needs to be handled with care to prevent exposure and potential harm to health.

InChI:InChI=1/2C8H16/c2*1-4-6-7-8(3)5-2/h2*6-8H,4-5H2,1-3H3/b7-6+;7-6-

Upstream product

• 106-98-9 1-butylene 
• 78-92-2 iso-butanol 
• 37443-56-4 3-methyl-hepta-4,6-dien-1-ol 

Relevant articles and documents

Influence of acid-base properties of the support on copper-based catalysts for catalytic dehydrogenation of 2-butanol

Copper-based catalysts, supported on γ-Al2O3, La2O3, and γ-Al2O3-La 2O3, respectively, were prepared by co-precipitation and tested in the continuous dehydrogenation of 2-butanol to methyl ethyl ketone. The catalytic performance of the catalysts was found to be markedly dependent on acid-base properties of the support. Three copper species were found in the calcined samples: Cu2+, [Cu-O-Cu] n cluster, and bulky CuO oxides. Cu0 was shown to be the active species of the reduced copper-based catalysts. The synergistic effect between γ-Al 2O3 and La2O3 when used as a support for well dispersed Cu0 gave the system with the best activity and stability; whereas, loss of the active Cu0 during the reaction was believed to be the main reason for Cu-La2O3 deactivation. Moreover, a possible reaction mechanism was proposed based on GC-MS results. Graphical Abstract: [Figure not available: see fulltext.]

Comparative Dimerization of 1-Butene mith a Variety of Metal Catalysts, and the Investigation of a New Catalyst for C-H Bond Activation

Catalytic dimerization of 1-butene by a variety of catalysts is carried out, and the products are analyzed by gas chromatography and mass spectrometry. Catalysts based on cobalt and iron can produce highly linear dimers, with the cobalt-based dimers exceeding 97% linearity. Catalysts based on vanadium and aluminum prefer to make branched dimers, which are most often methyl-heptenes in the case of vanadium and almost exclusively 2-ethyl-1-butene in the case of aluminum. The vanadium catalyst also produces substantial amounts of dienes and alkanes, suggesting a competing hydrogenation/dehydrogenation pathway that appears to involve vinyl C-H bond activation. Nickel catalysts are generally less selective than those based on iron or cobalt for making linear dimers, but they can make dimers with 60% linearity. The major by-products for the nickel systems are trisubstituted internal olefins. An important side reaction that must be considered for dimerization reactions is 1-butene isomerization to 2-butene, which makes recycling the butene difficult for a linear dimerization process. Aluminum, iron, and vanadium systems promote very little isomerization, but nickel and cobalt systems tend to isomerize the undimerized substrate heavily.