title: A new synthetic approach to N-arylquinolino[2,3,4-at]porphyrins from beta-arylaminoporphyrins.
abstract: A new reaction leading to porphyrins bearing fused rings is described. Novel N-arylquinolino[2,3,4-at]porphyrins 2 were obtained by thermal oxidative cyclization of beta-arylaminoporphyrins 1. The starting beta-arylaminoporphyrins were prepared by two routes: (i) nucleophilic displacement of the nitro group from 2-nitro-5,10,15,20-tetraphenylporphyrin by anilines and (ii) palladium-catalyzed amination of bromobenzene derivatives with (2-amino-5,10,15,20-tetraphenylporphyrinato)nickel(II). The N-arylquinolino[2,3,4-at]porphyrins show interesting UV-vis spectra with strong absorption bands in the red region.
authors: Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
authors: Ana M V M
authors: AM
authors: Pereira
authors: Cristina M A
authors: CM
authors: Alonso
authors: Maria G P M S
authors: MG
authors: Neves
authors: Augusto C
authors: AC
authors: Tomé
authors: Artur M S
authors: AM
authors: Silva
authors: Filipe A A
authors: FA
authors: Paz
authors: José A S
authors: JA
authors: Cavaleiro
mesh_terms: D018360:Crystallography, X-Ray; D003500:Cyclization; D008958:Models, Molecular; D015394:Molecular Structure; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry*; D011804:Quinolines / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D011166:Porphyrins; D011804:Quinolines