title: Direct meso-alkynylation of porphyrins doubly assisted by pyridyl coordination.
abstract: Direct meso-alkynylation of β,β'-dipyridylporphyrin with various alkynyllithium reagents has been achieved, in which the β,β'-dipyridyl groups play an important role in facilitating the nucleophilic addition of the reagents through double coordination. This method enabled the synthesis of a meso-ethynylene-bridged diporphyrin.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
authors.forename: Shoma
authors.initials: S
authors.lastname: Anabuki
authors.forename: Sumito
authors.initials: S
authors.lastname: Tokuji
authors.forename: Naoki
authors.initials: N
authors.lastname: Aratani
authors.forename: Atsuhiro
authors.initials: A
authors.lastname: Osuka