title: Aromatic 4-tetrahydropyranyl and 4-quinuclidinyl cations. Linking Prins with Cope and Grob.
abstract: The chair 4-tetrahydropyranyl cation and the 4-quinuclidinyl cation are shown to be energy minima and to be delocalized, with exceptionally long CH2CH2 bonds, according to B3LYP/6-31G* calculations; the implications for Prins cyclizations, Cope rearrangements, and Grob fragmentations are discussed.
authors: School of Chemistry, University of Bristol, Bristol, United Kingdom BS8 1TS. rog.alder@bris.ac.uk
authors: Roger W
authors: RW
authors: Alder
authors: Jeremy N
authors: JN
authors: Harvey
authors: Mark T
authors: MT
authors: Oakley