Z /r reversible/ E isomerization in the oximes of sterically hindered phenoxyl radicals
Journal Article
·
· J. Org. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:5949491
The molecular structure of E-1-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-hydroxyiminoethane was determined by x-ray crystallographic analysis. Its oxidation leads to the formation of the Z and E isomers of 1-(3,5-di-tert-butyl-4-phenoxy)-1-hydroxyiminoethane. The ratio of the isomers is controlled by the temperature of the solution and by the polarity of the solvent. Stabilization of the E isomer is promoted by increase in the polarity of the solvent. The kinetic and activation parameters of the Z /r reversible/ E isomerization were determined by the ESR method.
- Research Organization:
- M.A. Suslov Rostov State Univ. (USSR)
- OSTI ID:
- 5949491
- Journal Information:
- J. Org. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Org. Chem. USSR (Engl. Transl.); (United States) Vol. 23:11; ISSN JOCYA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALKANES
AMINES
ANGULAR MOMENTUM
BOND ANGLE
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COHERENT SCATTERING
COUPLING CONSTANTS
DIFFRACTION
ELECTRON SPIN RESONANCE
ENERGY
HYDROCARBONS
HYDROXY COMPOUNDS
HYPERFINE STRUCTURE
ISOMERIZATION
KINETICS
LEAD COMPOUNDS
LEAD OXIDES
MAGNETIC RESONANCE
MATHEMATICAL MODELS
MECHANICS
MOLECULAR MODELS
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
OXIDATION
OXIDES
OXIMES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PHENOXY RADICALS
QUANTITY RATIO
QUANTUM MECHANICS
RADICALS
REACTION KINETICS
RESONANCE
SCATTERING
SOLVATION
SOLVENTS
SPIN
STEREOCHEMISTRY
STRUCTURAL CHEMICAL ANALYSIS
X-RAY DIFFRACTION
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALKANES
AMINES
ANGULAR MOMENTUM
BOND ANGLE
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COHERENT SCATTERING
COUPLING CONSTANTS
DIFFRACTION
ELECTRON SPIN RESONANCE
ENERGY
HYDROCARBONS
HYDROXY COMPOUNDS
HYPERFINE STRUCTURE
ISOMERIZATION
KINETICS
LEAD COMPOUNDS
LEAD OXIDES
MAGNETIC RESONANCE
MATHEMATICAL MODELS
MECHANICS
MOLECULAR MODELS
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
OXIDATION
OXIDES
OXIMES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PHENOXY RADICALS
QUANTITY RATIO
QUANTUM MECHANICS
RADICALS
REACTION KINETICS
RESONANCE
SCATTERING
SOLVATION
SOLVENTS
SPIN
STEREOCHEMISTRY
STRUCTURAL CHEMICAL ANALYSIS
X-RAY DIFFRACTION