title: Facile preparation of doubly dipyrrolylquinoxaline-bridged expanded porphyrins. Synthesis and structural characterization of an unprecedented [20]tetraphyrin-(2.1.2.1).
abstract: [structure: see text] An unprecedented V-shape (2.1.2.1) expanded porphyrin incorporating an extended pi-conjugated system is described. Its efficient synthesis relied on the use of a new peralkyl tetrapyrrolylquinoxaline building block that constitutes the ideal intermediate for the versatile preparation of new quinoxaline-containing macrocycles.
authors.affiliation: Université Pierre et Marie Curie-Paris 6, Laboratoire de chimie organique (UMR CNRS 7611), Institut de chimie moléculaire (FR 2769), France.
authors.forename: Florence
authors.initials: F
authors.lastname: Szydlo
authors.forename: Bruno
authors.initials: B
authors.lastname: Andrioletti
authors.forename: Eric
authors.initials: E
authors.lastname: Rose