title: The Elusive beta-unsubstituted calix[5]pyrrole finally captured.
abstract: [reaction: see text] The meso-decamethyl-calix[5]pyrrole 2b was synthesized from the furan-based analogue 1b via the homologation of the furan rings to pyrrole, and its solid-state structure was determined by X-ray crystallography: surprisingly, the binding constant of 2b toward chloride is found to be lower than that of the tetrameric analogue 2a.
authors.affiliation: Dipartimento di Chimica Organica e Biologica, Università di Messina, Salita Sperone 31, I-98166 Messina, Italy.
authors.forename: Grazia
authors.initials: G
authors.lastname: Cafeo
authors.forename: Franz H
authors.initials: FH
authors.lastname: Kohnke
authors.forename: Melchiorre F
authors.initials: MF
authors.lastname: Parisi
authors.forename: Rosetta
authors.initials: R
authors.lastname: Pistone Nascone
authors.forename: Giovanna L
authors.initials: GL
authors.lastname: La Torre
authors.forename: David J
authors.initials: DJ
authors.lastname: Williams