Preconversion catalytic deoxygenation of phenolic functional groups. Quarterly technical progress report, April 1, 1991--June 30, 1991
The deoxygenation of phenols is a conceptually simple, but unusually difficult chemical transformation to achieve. Aryl carbon-oxygen bond cleavage is a chemical transformation of importance in coal liquefaction and the upgrading of coal liquids as well as in the synthesis of natural products. This proposed research offers the possibility of effecting the selective catalytic deoxygenation of phenolic functional groups using CO. A program of research for the catalytic deoxygenation of phenols, via a low energy mechanistic pathway that is based on the use of the CO/CO{sub 2} couple to remove phenolic oxygen atoms, is underway. We are focusing on systems which have significant promise as catalysts: Ir(triphos)OPh, [Pt(triphos)OPh]{sup +} and Rh(triphos)OPh. Our studies of phenol deoxygenation focus on monitoring the reactions for the elementary processes upon which catalytic activity will depend: CO insertion into M-OPh bonds, CO{sub 2} elimination from aryloxy carbonyls {l_brace}M-C(O)-O-Ph{r_brace}, followed by formation of a coordinated benzyne intermediate.
- Research Organization:
- Purdue Univ., Lafayette, IN (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-89PC89770
- OSTI ID:
- 10110140
- Report Number(s):
- DOE/PC/89770-T3; ON: DE92005198
- Resource Relation:
- Other Information: PBD: [1991]
- Country of Publication:
- United States
- Language:
- English
Similar Records
Preconversion catalytic deoxygenation of phenolic functional groups. Quarterly technical progress report, April 1, 1992--June 30, 1992
Preconversion catalytic deoxygenation of phenolic functional groups. Quarterly technical progress report, September 30, 1991--December 31, 1991
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
OXYGEN
REMOVAL
IRIDIUM COMPLEXES
CATALYTIC EFFECTS
PLATINUM COMPLEXES
RHODIUM COMPLEXES
PHOSPHORUS COMPOUNDS
PHOSPHINES
PROGRESS REPORT
PHENOLS
ACTIVATION ENERGY
CHEMICAL BONDS
COAL LIQUEFACTION
PURIFICATION
CHEMICAL REACTION KINETICS
CRESOLS
CARBON DIOXIDE
CARBON MONOXIDE
COAL LIQUIDS
SPECTRA
010402
010405
400201
PURIFICATION AND UPGRADING
HYDROGENATION AND LIQUEFACTION
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES