Kinetics and mechanism of the thermal decomposition of unsaturated aldehydes: benzaldehyde, 2-butenal, and 2-furaldehyde

Conference · Thu Jan 30 00:00:00 EST 1986 · J. Phys. Chem.; (United States)

OSTI ID:5826778

Grela, M A; Colussi, A J

The thermal unimolecular decomposition of benzaldehyde (BA), crotonaldehyde (CA), and furfural (FA) have been investigated in a flow reactor at very low pressures by modulated beam mass spectrometry above 1040 K. Each reaction proceeds by a different mechanism. Whereas BA decomposes by C(O)-H bond fission CA readily undergoes decarbonylation to propene via a three-center transition-state reaction. FA decomposition into vinylketene and CO involves ring opening followed by H-atom transfer in the resulting biradical. Overall high-pressure Arrhenius parameters for the three reactions are derived from kinetic data. 26 references, 4 figures, 1 table.

• Research Organization: Univ. of Mar Del Plata, Argentina
• OSTI ID: 5826778
• Journal Information: J. Phys. Chem.; (United States), Vol. 90:3; Conference: International conference on chemical kinetics, Gaithersburg, MD, USA, 17-19 Jun 1985
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BENZALDEHYDE
PYROLYSIS
FURFURAL
ARRHENIUS EQUATION
CARBON MONOXIDE
CHEMICAL REACTION KINETICS
CHEMICAL REACTORS
EXPERIMENTAL DATA
HYDROGEN TRANSFER
KETENES
MASS SPECTROSCOPY
MEETINGS
PROPYLENE
VERY HIGH TEMPERATURE
ALDEHYDES
ALKENES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
EQUATIONS
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)