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Fluoroaromatic Chemistry: Synthesis, Properties, and Applications of Certain Polyfluoroaryl- Organometallic Compounds.

AD819809

Publication Date	1967
Personal Author	Tamborski, C.
Page Count	73
Abstract	Polyfluoroaryllithium and polyfluoroarylmagnesium compounds have been prepared and their chemical reactions studied. These chemical intermediates may be conveniently prepared by either a metal-halogen or metal-hydrogen interconversion reaction. Either Grignards (C2H5MgBr) or organolithiums (C4H9Li) can be used as the source of the metal. In general, the organolithium-bromine interconversions have been found to be the preferred synthesis route. Reactions of certain organolithium intermediates with water, carbon dioxide, sulfur, chlorine, hexafluoroacetone, and metallic halides have been studied. By this procedure numerous difunctional monomeric compounds of perfluoro-benzene, -biphenyl, and -naphthalene can be prepared. Potential applications of certain perfluoroaromatic compounds have been studied. The perfluorophenyltin and phosphorus compounds show excellent anti-oxidant and anti-corrosion activity in certain fluorine-containing high temperature candidate fluids. Tris(pentafluorophenyl)phosphine inhibits the degradation and corrosion of titanium and steel alloys by certain polyperfluoroalkyl ether high temperature operational fluids. Vapor deposition of titanium can be accomplished by the use of bis(cyclopentadienyl)bis(pentafluorophenyl)-titanium. This titanium organometallic has the oxidative and thermal stability requirements necessary in vapor phase deposition technology. High temperature greases have been made utilizing the desirable properties of the polyperfluorophenylene polymer.
Keywords	Aromatic compounds Fluorine compounds Metalorganic compounds Hydrogen Hydrolysis Synthesis(Chemistry) Lithium Polymers Magnesium Grignard reactions Benzene Water Carbon dioxide Sulfur Chlorine Nuclear magnetic resonance Acetones Bromides Cyclopentanes Oxidation Vapor pressure Polymerization Decomposition Phosphorus compounds Thermal stability Degradation Corrosion inhibition Pyrolysis
Source Agency	Non Paid Delimited ADS
NTIS Subject Category	99D - Basic & Synthetic Chemistry
Corporate Authors	Air Force Materials Lab Wright-Patterson Afb Ohio
Document Type	Technical Report
Title Note	Technical rept. Jun 64-Jun 66.
NTIS Issue Number	197709

Fluoroaromatic Chemistry: Synthesis, Properties, and Applications of Certain Polyfluoroaryl- Organometallic Compounds.

Fluoroaromatic Chemistry: Synthesis, Properties, and Applications of Certain Polyfluoroaryl- Organometallic Compounds.
AD819809

Publication Date	1967
Personal Author	Tamborski, C.
Page Count	73
Abstract	Polyfluoroaryllithium and polyfluoroarylmagnesium compounds have been prepared and their chemical reactions studied. These chemical intermediates may be conveniently prepared by either a metal-halogen or metal-hydrogen interconversion reaction. Either Grignards (C2H5MgBr) or organolithiums (C4H9Li) can be used as the source of the metal. In general, the organolithium-bromine interconversions have been found to be the preferred synthesis route. Reactions of certain organolithium intermediates with water, carbon dioxide, sulfur, chlorine, hexafluoroacetone, and metallic halides have been studied. By this procedure numerous difunctional monomeric compounds of perfluoro-benzene, -biphenyl, and -naphthalene can be prepared. Potential applications of certain perfluoroaromatic compounds have been studied. The perfluorophenyltin and phosphorus compounds show excellent anti-oxidant and anti-corrosion activity in certain fluorine-containing high temperature candidate fluids. Tris(pentafluorophenyl)phosphine inhibits the degradation and corrosion of titanium and steel alloys by certain polyperfluoroalkyl ether high temperature operational fluids. Vapor deposition of titanium can be accomplished by the use of bis(cyclopentadienyl)bis(pentafluorophenyl)-titanium. This titanium organometallic has the oxidative and thermal stability requirements necessary in vapor phase deposition technology. High temperature greases have been made utilizing the desirable properties of the polyperfluorophenylene polymer.
Keywords	Aromatic compounds Fluorine compounds Metalorganic compounds Hydrogen Hydrolysis Synthesis(Chemistry) Lithium Polymers Magnesium Grignard reactions Benzene Water Carbon dioxide Sulfur Chlorine Nuclear magnetic resonance Acetones Bromides Cyclopentanes Oxidation Vapor pressure Polymerization Decomposition Phosphorus compounds Thermal stability Degradation Corrosion inhibition Pyrolysis
Source Agency	Non Paid Delimited ADS
NTIS Subject Category	99D - Basic & Synthetic Chemistry
Corporate Authors	Air Force Materials Lab Wright-Patterson Afb Ohio
Document Type	Technical Report
Title Note	Technical rept. Jun 64-Jun 66.
NTIS Issue Number	197709