Preparation of Chiral Ligands Connected with Quaternary Ammonium Group for Recyclable Catalytic Asymmetric Transfer Hydrogenation in Ionic Liquid

Hitomi Uchimoto,a Tomoko Tsuji,b Ikuo Kawasaki,*,a,b Kenji Arimitsu,a Hiroyuki Yasui,c Masayuki Yamashita,b Shunsaku Ohta,b and Kiyoharu Nishide*,a a School of Pharmaceutical Sciences, Mukogawa Women’s University; 11–68 Koshien Kyuban-cho, Nishinomiya 663–8179, Japan: b Department of Pharmaceutical Manufacturing Chemistry, Kyoto Pharmaceutical University; 1 Shichono-cho, Misasagi, Yamashina-ku, Kyoto 607–8414, Japan: and c Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Sciences, Kyoto Pharmaceutical University; 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607–8414, Japan. Received October 30, 2014; accepted December 11, 2014