title: Photocyclodehydrofluorination.
abstract: Mallory-type photocyclization involves a series of photoreactions of stilbenes, o-terphenyls and related derivatives, which undergo intramolecular cyclization via dihydrophenanthrene intermediates. In typical Mallory photocyclizations, oxidants are usually needed to produce the final phenanthrene-containing product. In the research described here, appropriately fluorinated stilbenes and o-terphenyls undergo ring closure and HF is eliminated. This photocyclodehydrofluorination (PCDHF) reaction is very useful to produce a wide range of selectively fluorinated polynuclear aromatic hydrocarbons that possess a phenanthrene (or heterocyclic analogue of phenanthrene) substructure. These fluorinated products are of great interest in various aspects of the materials science.
authors.affiliation: Department of Chemistry and Biochemistry, Kent State University Kent, OH, 44242 (USA).
authors.forename: Zhe
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Chemistry and Biochemistry, Kent State University Kent, OH, 44242 (USA). rtwieg@kent.edu.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Twieg
keywords: Mallory-type photocyclization; Synthesis design; photocyclodehydrofluorination; photoreaction; synthetic methods