514-96-5

Basic information

• Product Name: beta-Pyronene
• Synonyms: beta-Pyronene;1,2,6,6-Tetramethyl-1,3-cyclohexadiene
• CAS NO: 514-96-5
• Molecular Formula: C₁₀H₁₆
• Molecular Weight: 136.23
• Mol File: 514-96-5.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 161.9°C at 760 mmHg
• Flash Point: 38.7°C
• Appearance: /
• Density: 0.813g/cm³
• Vapor Pressure: 2.9mmHg at 25°C
• Refractive Index: 1.457
• CAS DataBase Reference: beta-Pyronene(CAS DataBase Reference)
• NIST Chemistry Reference: beta-Pyronene(514-96-5)
• EPA Substance Registry System: beta-Pyronene(514-96-5)

Safety Data

• Hazardous Substances Data: 514-96-5(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H16/c1-8-6-5-7-10(3,4)9(8)2/h5-6H,7H2,1-4H3

Upstream product

• 3016-19-1 alloocimene 
• 71-23-8 propan-1-ol 
• 28354-98-5 2,3,4,4-tetramethylcyclohex-2-en-1-one 
• 64-17-5 ethanol 
• 67-56-1 methanol 
• 2948-54-1 3,4,5,5-tetramethyl-2-cyclohexen-1-ol 
• 51036-25-0 1.2.6.6-Tetramethylcyclohex-2-en-1-ol 
• 3019-82-7 2,3,4,4-tetramethyl-2-cyclohexen-1-ol 
• 472-20-8 β-cyclogeraniol 
• 68406-89-3 α-cyclogeraniol acetate 
• 5989-27-5 D-limonene 
• 7785-70-8 (+)-α-pinene 

Downstream Products

• 6783-92-2 1,1,2,3-tetramethylcyclohexane 
• 52103-98-7 1,6,6-Trimethyl-2-methylencyclohex-3-enol 
• 52103-92-1 4-Hydroxy-3,4,5,5-tetramethyl-2-cyclohexen-1-on 
• 81054-01-5 3,3-Dimethyl-2-methylen-cyclohexen-⁽⁶⁾-al-⁽¹⁾, Pironen-aldehyd 
• 51994-05-9 2,2,6,6-tetramethylcyclohex-3-enone 

Relevant articles and documents

Kinetics of thermal conversions of monoterpenic compounds in supercritical lower alcohols

The most important information concerning thermal conversions of vegetable terpenes (α-pinene, β-pinene, turpentine, and cis-verbenol) in supercritical lower alcohols is systematized. The kinetics of selected reactions is reported and is compared with the kinetics of the same reactions in the gas and liquid phases. Thermodynamic calculations of the phase states and kinetic parameters are presented for a number of multicomponent multiphase systems containing terpenes and lower alcohols. The effect of the supercritical solvent pressure on the rate and selectivity of the selected reactions is reported.

Thermolysis of α-pinene in supercritical lower alcohols

Thermal isomerization of α-pinene in supercritical solvents, viz., ethanol, methanol, and propan-1-ol, was carried out, and differences in the rate and selectivity of the process were revealed. In supercritical ethanol the reaction rate increases sharply and the selectivity remains unchanged with an increase in the temperature (from 290 to 390°C) or pressure (from 90 to 270 atm). The main reaction products are limonene, isomeric alloocimenes, and pyronenes. The selectivity for limonene in propan-1-ol is higher than in other alcohols when the conversion of α-pinene not higher than 50%. In supercritical ethanol (430°C, 120 atm, 140 s) limonene is more stable than α-pinene (conversion 8%).

Reaction of allylic alcohols with aliphatic alcohols in the presence of cerium(III) chloride. Part II

The reactions of selected allylic alcohols with methanol, ethanol, n-propanol, isopropanol and tert-butanol in the presence of catalytic amounts of cerium(III) chloride are described. Allylic alkyl ethers, bis-allylic ethers and 1,3-dienes were obtained d