title: Stepwise π-extension of meso-alkylidenyl porphyrins through sequential 1,3-dipolar cycloaddition and redox reactions.
abstract: Several regioselectively π-extended, pyrrole fused porphyrinoids have been synthesized by the 1,3-dipolar cycloaddition of meso-alkylidene-(benzi)porphyrins. Pd(II) complexes gave oxidation resistant, bis-pyrrole fused adducts. The repeated 1,3-dipolar cycloaddition followed by oxidation-reduction of pentaphyrin analogs afforded π-extended porphyrin analogs.
authors.affiliation: Department of Chemistry, Kangwon National University, Chun Cheon 200-701, Korea. chhlee@kangwon.ac.kr.
authors.forename: Dowoo
authors.initials: D
authors.lastname: Park
authors.forename: Seung Doo
authors.initials: SD
authors.lastname: Jeong
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Ishida
authors.forename: Chang-Hee
authors.initials: CH
authors.lastname: Lee
mesh_terms: D061565:Cycloaddition Reaction; D013058:Mass Spectrometry; D010084:Oxidation-Reduction; D011166:Porphyrins / Q000737:chemistry*; D066244:Proton Magnetic Resonance Spectroscopy; D013056:Spectrophotometry, Ultraviolet; D019265:Spectroscopy, Near-Infrared
chemical_list: D011166:Porphyrins