52896-87-4

Basic information

• Product Name: 4-isopropylheptane
• Synonyms: 4-isopropylheptane;4-(1-Methylethyl)heptane
• CAS NO: 52896-87-4
• Molecular Formula: C₁₀H₂₂
• Molecular Weight: 142.28
• Mol File: 52896-87-4.mol
• Article Data: 1

Chemical Properties

• Melting Point: -53.99°C
• Boiling Point: 158.91°C
• Flash Point: 82.8°C
• Appearance: /
• Density: 0.7350
• Vapor Pressure: 3.15mmHg at 25°C
• Refractive Index: 1.4132
• CAS DataBase Reference: 4-isopropylheptane(CAS DataBase Reference)
• NIST Chemistry Reference: 4-isopropylheptane(52896-87-4)
• EPA Substance Registry System: 4-isopropylheptane(52896-87-4)

Safety Data

• Hazardous Substances Data: 52896-87-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H22/c1-5-7-10(8-6-2)9(3)4/h9-10H,5-8H2,1-4H3

Upstream product

• 51200-82-9 4-isopropyl-heptan-4-ol 

Relevant articles and documents

Ring opening of decalin via hydrogenolysis on Ir/- and Pt/silica catalysts

The catalytic conversion of cis-decalin was studied at a hydrogen pressure of 5.2 MPa and temperatures of 250-410 °C on iridium and platinum supported on non-acidic silica. The absence of catalytically active Br?nsted acid sites was indicated by both FT-IR spectroscopy with pyridine as a probe and the selectivities in a catalytic test reaction, viz. the hydroconversion of n-octane. On iridium/silica, decalin hydroconversion starts at ca. 250-300 °C, and no skeletal isomerization occurs. The first step is rather hydrogenolytic opening of one six-membered ring to form the direct ring-opening products butylcyclohexane, 1-methyl-2-propylcyclohexane and 1,2- diethylcyclohexane. These show a consecutive hydrogenolysis, either of an endocyclic carboncarbon bond into open-chain decanes or of an exocyclic carboncarbon bond resulting primarily in methane and C9 naphthenes. The latter can undergo a further endocyclic hydrogenolysis leading to open-chain nonanes. All individual C10 and C9 hydrocarbons predicted by this direct ring-opening mechanism were identified in the products generated on the iridium/silica catalysts. The carbon-number distributions of the hydrocracked products C9- show a peculiar shape resembling a hammock and could be readily predicted by simulation of the direct ring-opening mechanism. Platinum on silica was found to require temperatures around 350-400 °C at which relatively large amounts of tetralin and naphthalene are formed. The most abundant primary products on Pt/silica are spiro[4.5]decane and butylcyclohexane which can be readily accounted for by the well known platinum-induced mechanisms described in the literature for smaller model hydrocarbons, namely the bond-shift isomerization mechanism and hydrogenolysis of a secondary-tertiary carboncarbon bond in decalin.