title: Quaterpyrroles as building blocks for the synthesis of expanded porphyrins.
abstract: A new family of quaterpyrroles and their application as building blocks for the synthesis of macrocycles is reported. The preparation of these quaterpyrroles consisted of two synthetic steps: bromination of 2,2'-bipyrroles bearing two electron-withdrawing groups followed by Suzuki coupling with 1-(tert-butoxycarbonyl)pyrrole-2-boronic acid. The resulting quaterpyrroles have been used to prepare an octaphyrin and a substituted cyclo[8]pyrrole. Additionally, the synthesis of a new macrocycle containing the quaterpyrrole and 2,5-di(1H-pyrrol-2-yl)thiophene moieties is presented.
authors.affiliation: †Grup d'Enginyeria dels Materials, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, Barcelona 08017, Spain.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Anguera
authors.affiliation: §University of Bordeaux, CNRS and INSERM (UMS 3033/US 001), Institut Européen de Chimie et Biologie, 2 rue Escarpit, Pessac 33600, France.
authors.forename: Brice
authors.initials: B
authors.lastname: Kauffmann
authors.affiliation: ‡Grup d'Enginyeria Molecular, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, Barcelona 08017, Spain.
authors.forename: José I
authors.initials: JI
authors.lastname: Borrell
authors.affiliation: †Grup d'Enginyeria dels Materials, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, Barcelona 08017, Spain.
authors.forename: Salvador
authors.initials: S
authors.lastname: Borrós
authors.affiliation: †Grup d'Enginyeria dels Materials, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, Barcelona 08017, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Sánchez-García
mesh_terms: D018360:Crystallography, X-Ray; D047028:Macrocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D011758:Pyrroles / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D047028:Macrocyclic Compounds; D011166:Porphyrins; D011758:Pyrroles