高等学校化学研究 ›› 2004, Vol. 20 ›› Issue (2): 180-184.
LI Yan-yun1, CHEN Jian-shan1, YANG Chuan-bo1, DONG Zhen-rong1, LI Bao-zhu1, ZHANG Hui1, GAO Jing-xing1, TAKAO Ikariya2
LI Yan-yun1, CHEN Jian-shan1, YANG Chuan-bo1, DONG Zhen-rong1, LI Bao-zhu1, ZHANG Hui1, GAO Jing-xing1, TAKAO Ikariya2
摘要: The efficient chiral Ru3(CO)12 systems were prepared in situ from Ru3(CO)12 and various chiral diiminoor diamino-diphosphine tetradentate ligands. The systems have been used for the asymmetric transfer hydrogenation of propiophenone in 2-propanol, leading to 1-phenyl-1-propanol in a 98% yield and 96% e.e. The IR study suggests that the carbonyl hydride anion [HRu3(CO)11]- most probably exists as a principal species under the reaction conditions. The high chiral efficiency may be due to the synergetic effect produced by the neighboring ruthenium atoms and a special chiral micro-environment involving the polydentate ligand and the Ru3 framework.