Takashi Ooi

Molecular Design of a <i>C</i>₂-Symmetric Chiral Phase-Transfer Catalyst for Practical Asymmetric Synthesis of <i>α</i>-Amino Acids

Takashi Ooi, Minoru Kameda, Keiji Maruoka · Journal of the American Chemical Society · 1999 · 386 citations

Enantioselective Synthesis, Engineering, Donut Icon +11

Design of<i>N</i>-Spiro<i>C</i>₂-Symmetric Chiral Quaternary Ammonium Bromides as Novel Chiral Phase-Transfer Catalysts:  Synthesis and Application to Practical Asymmetric Synthesis of α-Amino Acids

Takashi Ooi, Minoru Kameda, Keiji Maruoka · Journal of the American Chemical Society · 2003 · 340 citations

Synergistic Catalysis of Ionic Brønsted Acid and Photosensitizer for a Redox Neutral Asymmetric α-Coupling of <i>N</i>-Arylaminomethanes with Aldimines

Daisuke Uraguchi, Natsuko Kinoshita, Tomohito Kizu et al. · Journal of the American Chemical Society · 2015 · 333 citations

Ionic Brønsted Acid, Chemical Engineering, Cross-coupling Reaction +13

Practical Catalytic Enantioselective Synthesis of α,α-Dialkyl-α-amino Acids by Chiral Phase-Transfer Catalysis

Takashi Ooi, Mifune Takeuchi, Minoru Kameda et al. · Journal of the American Chemical Society · 2000 · 331 citations

Chiral Phase-transfer Catalysis, Engineering, Biochemistry +15

Chiral Organic Ion Pair Catalysts Assembled Through a Hydrogen-Bonding Network

Daisuke Uraguchi, Yusuke Ueki, Takashi Ooi · Science · 2009 · 242 citations