title: Enantioselective synthesis of planar-chiral ferrocene-fused 4-pyridones and their application in construction of pyridine-based organocatalyst library.
abstract: A couple of planar-chiral ferrocene-fused 4-pyridone derivatives 2a and 2b were synthesized in enantiomerically pure form by scalable asymmetric transformations. Pyridones 2 are versatile precursors to various ferrocene-fused pyridine derivatives, which are useful nucleophilic asymmetric organocatalysts.
authors.affiliation: †Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan.
authors.forename: Masamichi
authors.initials: M
authors.lastname: Ogasawara
authors.affiliation: ‡Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Shiro
authors.initials: S
authors.lastname: Wada
authors.affiliation: †Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan.
authors.forename: Erika
authors.initials: E
authors.lastname: Isshiki
authors.affiliation: ‡Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Takumi
authors.initials: T
authors.lastname: Kamimura
authors.affiliation: ‡Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Yanagisawa
authors.affiliation: †Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan.
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Takahashi
authors.affiliation: ‡Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Yoshida