title: Isocyanurate anion radicals via electron-initiated cycloaddition of isocyanates.
abstract: Room temperature sodium metal reductions of alkyl isocyanates lead to the rapid electron-initiated formation of alkyl isocyanurate anion radicals, which exhibit EPR coupling to only two equivalent nitrogens. Reduction of (13)C-enriched ethyl isocyanate reveals that the odd electron localizes in the pi system of one carbonyl in the isocyanurate ring. EPR line-width alternation effects indicate that at least two stable conformers are in rapid equilibrium undergoing fast exchange.
authors.affiliation: Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, USA. sjpeter@ilstu.edu
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Peters
authors.forename: Joseph R
authors.initials: JR
authors.lastname: Klen
authors.forename: Nathaniel C
authors.initials: NC
authors.lastname: Smart