Orientation in methylation and phenylation of alkylbenzenes by cations generated by the nuclear chemical method
Journal Article
·
· J. Gen. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6961063
The distribution of the isomers and the relative activity of alkylbenzenes in electrophilic methylation and phenylation with methyl and phenyl cations generated by the nuclear chemical method are examined. These reactions are a convenient model of aromatic electrophilic substitution. Free methyl cations were generated by radioactive ..beta../sup -/ decay of tritium in totally tritiated methane. Free phenyl cations were generated from totally tritiated benzene C/sub 6/T/sub 6/ according to a similar scheme. During the reaction with alkylbenzenes methyl cations form isomeric alkyltoluenes and tritium-labeled toluene. The phenyl cations react with the alkylbenzenes and form isomeric alkyldiphenyls and tritium-labeled diphenyl. Both the Nathan-Baker substrate and position effects caused by the steric effect of the alkyl substitutents are observed in methylation and phenylation of alkylbenzenes by CT/sub 3//sup +/ and C/sub 6/T/sub 5//sup +/ cations generated by the nuclear chemical method.
- Research Organization:
- A. A. Zhdanov Leningrad State Univ. (USSR)
- OSTI ID:
- 6961063
- Journal Information:
- J. Gen. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Gen. Chem. USSR (Engl. Transl.); (United States) Vol. 57:5; ISSN JGCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
400700* -- Radiochemistry & Nuclear Chemistry
ACTIVATION ENERGY
ALKYL RADICALS
ALKYLATION
AROMATICS
AROMATIZATION
ARYL RADICALS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECAY
ENERGY
HYDROGEN ISOTOPES
IONS
ISOMERIZATION
ISOMERS
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LABELLED COMPOUNDS
LABELLING
LIGHT NUCLEI
METHYL RADICALS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PHENYL RADICALS
RADICALS
RADIOACTIVATION
RADIOISOTOPES
REACTION KINETICS
STEREOCHEMISTRY
TRITIUM
TRITIUM COMPOUNDS
YEARS LIVING RADIOISOTOPES
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
400700* -- Radiochemistry & Nuclear Chemistry
ACTIVATION ENERGY
ALKYL RADICALS
ALKYLATION
AROMATICS
AROMATIZATION
ARYL RADICALS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECAY
ENERGY
HYDROGEN ISOTOPES
IONS
ISOMERIZATION
ISOMERS
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LABELLED COMPOUNDS
LABELLING
LIGHT NUCLEI
METHYL RADICALS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PHENYL RADICALS
RADICALS
RADIOACTIVATION
RADIOISOTOPES
REACTION KINETICS
STEREOCHEMISTRY
TRITIUM
TRITIUM COMPOUNDS
YEARS LIVING RADIOISOTOPES