title: Synthetic routes to 5,10,15-triaryl-tetrabenzocorroles.
abstract: Two different synthetic routes for the preparation of 5,10,15-triaryl-tetrabenzocorroles have been developed. The first approach is based on the condensation of a tetrahydroisoindole with aryl-aldehydes, and the second pathway involves a cross-coupling reaction between a bromo-substituted corrole and a suitable substrate to form the four β-fused aryl rings. These routes are successful to lead to the target tetrabenzocorroles, obtained in both cases as the corresponding Cu complex and with the highest yield obtained via the one-step cross-coupling methodology. Demetalation of the Cu-tetrabenzocorrole produces the corresponding free base; this macrocycle was further exploited to obtain the Sn and Co complexes in good yields.
authors.affiliation: Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Pomarico
authors.forename: Sara
authors.initials: S
authors.lastname: Nardis
authors.forename: Roberto
authors.initials: R
authors.lastname: Paolesse
authors.forename: Owendi C
authors.initials: OC
authors.lastname: Ongayi
authors.forename: Brandy H
authors.initials: BH
authors.lastname: Courtney
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.forename: Maria Graça H
authors.initials: MG
authors.lastname: Vicente
mesh_terms: D009942:Organometallic Compounds / Q000737:chemistry; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D009942:Organometallic Compounds; D011166:Porphyrins; C431863:corrole