title: Homogeneous perdehydrogenation and perhydrogenation of fused bicyclic N-heterocycles catalyzed by iridium complexes bearing a functional bipyridonate ligand.
abstract: Homogeneous perdehydrogenation of saturated bicyclic 2,6-dimethyldecahydro-1,5-naphthyridine and perhydrogenation of aromatic 2,6-dimethyl-1,5-naphthyridine with release and uptake of five molecules of H2 are efficiently achieved by iridium complexes bearing a functional bipyridonate ligand. Successive perhydrogenation and perdehydrogenation of 2,6-dimethyl-1,5-naphthryridine using a single iridium complex also proceed with the reversible interconversion of the catalytic species, depending on the presence or absence of H2.
authors.affiliation: Graduate School of Human and Environmental Studies, Kyoto University , Sakyo-ku, Kyoto 606-8501, Japan.
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Fujita
authors.forename: Yui
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Masato
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Ryohei
authors.initials: R
authors.lastname: Yamaguchi