title: Catalyst-free aromatic nucleophilic substitution of meso-bromoporphyrins with azide anion: efficient synthesis and structural analyses of meso-azidoporphyrins.
abstract: meso-Mono- or diazidoporphyrins were readily obtained in high yields by the catalyst-free aromatic nucleophilic reaction of the corresponding bromoporphyrins with azide anions under mild conditions. The molecular structures of the obtained azides were unambiguously determined by X-ray crystallographic analysis.
authors.affiliation: Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan. yamashita-kenichi@tmu.ac.jp
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Yamashita
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Kataoka
authors.forename: Motoko S
authors.initials: MS
authors.lastname: Asano
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Sugiura
mesh_terms: D000838:Anions / Q000737:chemistry; D001386:Azides / Q000737:chemistry*; D001966:Bromine / Q000737:chemistry*; D002384:Catalysis; D008958:Models, Molecular; D015394:Molecular Structure; D011166:Porphyrins / Q000138:chemical synthesis*
chemical_list: D000838:Anions; D001386:Azides; D011166:Porphyrins; D001966:Bromine