title: Aromatic and nonaromatic pyriporphyrins.
abstract: Pyriporphyrins with three different orientations for the pyridine moiety have been prepared using a '3 + 1' strategy. The nonaromatic pyriporphyrins are stable so long as phenyl substituents are present at the meso-positions adjacent to the pyridine ring. An aromatic dihydropyriporphyrin with an external CO2Ph protective group has also been prepared from 2,4-pyridinedicarbaldehyde.
authors.affiliation: Department of Chemistry, Illinois State University, Normal, Illinois 61790-4160, USA. tdlash@ilstu.edu
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Lash
authors.forename: Komal
authors.initials: K
authors.lastname: Pokharel
authors.forename: Jill M
authors.initials: JM
authors.lastname: Serling
authors.forename: Valerie R
authors.initials: VR
authors.lastname: Yant
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Ferrence