Mechanisms of free-radical reactions. XX. Reactivity in the free-radical halogenation reactions of arylfluoroalkanes
The free-radical chlorination and bromination of meta- and para-substituted benzyl fluorides and 1,1-difluoro-2-phenylethane and also the chlorination of 1-fluoro-2-arylethanes by phenylchloroiodonium chloride and the bromination of meta- and para-substituted benzyl bromides were studied by the method of competing reactions. In all cases a good correlation is observed between log k/sub rel/ and the Brown sigma/sup +/ constants. In cases where change in the reactivity in the transition from one reaction series to another is due mainly to the polar effect of the substituent while the selectivity is measured in relation to the polar effect direct relationships are observed between the reactivity and the selectivity.
- Research Organization:
- A. A. Zhdanov Leningrad State Univ. (USSR)
- OSTI ID:
- 7199926
- Journal Information:
- J. Org. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Org. Chem. USSR (Engl. Transl.); (United States) Vol. 23:4; ISSN JOCYA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Meta-substituent effects on benzyl free-radical stability
Reaction of hydroxy and carbonyl compounds with sulfur tetrafluoride. XX. Reactions of glycols with sulfur tetrafluoride
Related Subjects
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ACTIVATION ENERGY
AROMATICS
BROMINATED AROMATIC HYDROCARBONS
BROMINATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMICAL SHIFT
CHLORINATED AROMATIC HYDROCARBONS
CHLORINATION
DEUTERIUM
ELEMENTS
ENERGY
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATED AROMATIC HYDROCARBONS
HALOGENATION
HYDROGEN
HYDROGEN ISOTOPES
HYDROGEN TRANSFER
IODINATED AROMATIC HYDROCARBONS
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
NMR SPECTRA
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC BROMINE COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
REACTION KINETICS
SPECTRA
STABLE ISOTOPES