ESR studies of radicals derived from tetrahydrofuran derivatives

Abstract

Free radicals derived from tetrahydrofuran, 2,3- or 2,5-dihydrofuran as well as from some methoxy or mono- and di-methyl derivatives thereof have been generated via hydrogen abstraction via photolytically generated t-butoxy radicals. The g values of these radicals have been determined by ESR spectrometry and the hyperfine splitting constants have been assigned using deuterium labeling. Saturated systems give rise to cyclic alkyl radicals via hydrogen abstraction from the carbon in the a-position to oxygen; unsaturated systems yield cyclic allyl-type radicals. © 1983.