1区 · 化学
Article
作者: Xie, Jian-Hua ; Lin, Zu-Peng ; Fu, Xing-Feng ; Li, Yuan-Qiang ; Wei, Tao ; Zhou, Qi-Lin ; Hua, Yun-Yu ; Cheng, Hou-An ; Bin, Huai-Yu ; Yan, Pu-Cha
A highly efficient asymmetric hydrogenation of γ- and δ-ketoacids was developed by using a chiral spiro iridium catalyst (S)-1a, affording the optically active γ- and δ-hydroxy acids/lactones in high yields with excellent enantioselectivities (up to >99% ee) and turnover numbers (TON up to 100000). This protocol provides an efficient and practical method for enantioselective synthesis of Ezetimibe.