Studies of the pyrolysis of hydroaromatic compounds with an emphasis on reactions of ortho-quinodimethanes. [Ortho-quinodimethane]
The studies described herein are the results of questions raised concerning the pyrolysis of simple hydroaromatic compounds. A key compound within this group is tetralin which is presumed to thermally eject ethylene to produce ortho-quinodimethane, which then isomerizes to benzocyclobutene. It is also known that styrene is produced in this thermolysis and a possible source was hypothesized to be benzocyclobutene. Thus, in Part I we sought to delineate the mechanistic pathways operating in the isomerization of benzocyclobutene to styrene. In Part II, a further study of a reaction of ortho-quinodimethane was pursued, the reaction of hydrogen gas with the exocyclic diene system of ortho-quinodimethane. The subject matter of Part III again deals with an ortho-quinodimethane, in this case 2,3-dihydronaphthalene. We wished to determine its role in the formation of the products of the pyrolysis of tetralin. More specifically, we attempted to determine its place among its other C10H10 isomers, 1,2-dihydronaphthalene and ortho-divinylbenzene. The last section deals with the effect that active pyrolysis packings have on the products and product distributions resulting from the pyrolysis of simple hydroaromatic compounds. We also wanted to determine to what extent the quartz chips used in our ''normal'' flash vacuum pyrolyses were influencing the chemistry which we observed. 114 refs., 15 figs., 27 tabs.
- Research Organization:
- Ames Lab., IA (USA)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 6195318
- Report Number(s):
- IS-T-1185; ON: DE86006380
- Resource Relation:
- Other Information: Thesis. Submitted to Iowa State Univ., Ames
- Country of Publication:
- United States
- Language:
- English
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Characterization and chemistry of vinylketene prepared by flash vacuum pyrolysis. Study of the flash vacuum pyrolysis of hydroaromatic compounds: 5,8-diphenyltetralin and the parent and substituted 5,6,11,12-tetrahydrodibenzo(a,e)cyclooctenes. Revision 1
Characterization and chemistry of vinylketene prepared by flash vacuum pyrolysis. Study of the flash vacuum pyrolysis of hydroaromatic compounds: 5,8-diphenyltetralin and the parent and substituted 5,6,11,12-tetrahydrodibenzo(a,e)cyclooctenes
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON
CATALYTIC EFFECTS
COPPER
COPPER OXIDES
CYCLOALKENES
CHEMICAL PREPARATION
ISOMERIZATION
NUCLEAR MAGNETIC RESONANCE
PACKINGS
PYROLYSIS
DEUTERIUM
ISOTOPE EFFECTS
FLASH HYDROPYROLYSIS PROCESS
QUARTZ
QUINONES
HYDROGENATION
STYRENE
TETRALIN
ZEOLITES
CATALYSIS
EXPERIMENTAL DATA
ALKENES
ALKYLATED AROMATICS
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL GASIFICATION
COAL LIQUEFACTION
COPPER COMPOUNDS
DATA
DECOMPOSITION
ELEMENTS
GASIFICATION
HYDROCARBONS
HYDROGEN ISOTOPES
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTOPES
LIGHT NUCLEI
LIQUEFACTION
MAGNETIC RESONANCE
MATERIALS
METALS
MINERALS
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RESONANCE
SILICON COMPOUNDS
SILICON OXIDES
STABLE ISOTOPES
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry