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

Conference · Wed Jan 29 23:00:00 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), Journal Name: J. Phys. Chem.; (United States) Vol. 90:3; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

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