Preconversion catalytic deoxygenation of phenolic functional groups
The deoxygenation of phenols is a conceptually simple, but unusually difficult chemical transformation to achieve. The phenolic C-O bond energy of 103 kcal/mol is an strong as a benzene C-H bond and over 10 kcal/mol stronger than the C-O bonds of methanol and ethanol. The consequence of this is that the hydrogenation/deoxygenation methods in current use require severe conditions and give low selectivities. The ongoing research described herein is based on the uprecedented, but thermodynamically promising, use of carbon monoxide as the oxygen atom acceptor for the catalytic deoxygenation of phenols. Catalytic activities of Ir(triphos)OAr and (Ir(triphos){eta}{sup 4}-cod)Cl are described. 25 refs., 3 figs.
- Research Organization:
- Purdue Univ., Lafayette, IN (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-89PC89770
- OSTI ID:
- 5304302
- Report Number(s):
- DOE/PC/89770-T2; ON: DE91018089
- Country of Publication:
- United States
- Language:
- English
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Preconversion catalytic deoxygenation of phenolic functional groups
Preconversion catalytic deoxygenation of phenolic functional groups. Quarterly technical progress report, January 1, 1992--March 31, 1992
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
IRIDIUM COMPLEXES
CATALYTIC EFFECTS
OXYGEN
REMOVAL
ACTIVATION ENERGY
CARBON DIOXIDE
CATALYSTS
CHEMICAL BONDS
CHEMICAL REACTION KINETICS
COAL LIQUEFACTION
CRESOLS
HYDROGENATION
PHENOLS
PROGRESS REPORT
PURIFICATION
AROMATICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
DOCUMENT TYPES
ELEMENTS
ENERGY
HYDROXY COMPOUNDS
KINETICS
LIQUEFACTION
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPLEXES
010402* - Coal
Lignite
& Peat- Purification & Upgrading
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
400201 - Chemical & Physicochemical Properties