1968•Journal of the Chemical Society B Physical OrganicRequires access

Homolytic aromatic substitution by heterocyclic free radicals. Part II. 3-Thienyl radicals

Giulia Martelli, Piero Spagnolo, M. TIECCO

Abstract

3-Thienyl radicals have been generated by photolysis of 3-iodothiophen, and their reactions with various monosubstituted benzenes as solvents studied. The isomer ratios and the relative rates of 3-thienylation have thus been determined. These values indicate that the 3-thienyl radical has a reactivity which is intermediate between that of 2-thienyl and phenyl radicals. A number of new monosubstituted 3-phenylthiophens are described.

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Key concepts: Radical, Homolysis, Chemistry, Reactivity (psychology), Photodissociation, Photochemistry, Electrophilic aromatic substitution, Radical substitution