Coal liquefaction model studies: free radical chain decomposition of diphenylpropane, dibenzyl ether, and phenyl ether via. beta. -scission reactions
- Indiana Univ., Bloomington
The thermal decompositions to 1,3-diphenylpropane (1), dibenzyl ether (2), and phenethyl phenyl ether (3) have been found to proceed by free radical chain processes. 1 gave toluene and styrene with a reaction order of 1.55, E/sub A/ = 51.4 kcal/mol, and log A = 12.5. The reaction could be initiated by benzyl phenyl ether but not by 1,2-diphenylethane. 2 gave toluene and benzaldehyde with a reaction order of 1.43,E/sub A/ = 48 kcal/mol, and log A = 12.6. The reaction could be initiated with benzyl phenyl ether. 3 gave phenol and styrene with a reaction order of 1.21, E/sub A/ = 50.3 kcal/mol, and log A =12.3. The reaction could be initiated by benzyl phenyl ether. All of the data are consistent with free radical processes with the reaction order determined by the termination reaction. No evidence for concerted reactions has been found.
- DOE Contract Number:
- AC02-80ER10721
- OSTI ID:
- 6293173
- Journal Information:
- J. Org. Chem.; (United States), Journal Name: J. Org. Chem.; (United States) Vol. 47:25; ISSN JOCEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010500* -- Coal
Lignite
& Peat-- Products & By-Products
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
AROMATICS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUEFACTION
DATA
DECOMPOSITION
ETHERS
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
KINETICS
LIQUEFACTION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHENYL ETHER
PROPANE
PYROLYSIS
PYROLYSIS PRODUCTS
REACTION KINETICS
THERMOCHEMICAL PROCESSES