催化学报 ›› 2011, Vol. 32 ›› Issue (9): 1490-1495.DOI: 10.3724/SP.J.1088.2011.10434

• 研究论文 • 上一篇    下一篇

聚乙二醇-水介质中水溶性膦稳定的钌催化芳香酮的不对称加氢反应

秦瑞香 1, 王金波 1,2,a, 熊伟 1, 刘德蓉 1, 冯建 1, 陈华 2,b   

  1. 1重庆科技学院化学化工学院, 重庆 401331; 2四川大学化学学院, 绿色化学及技术教育部重点实验室, 四川成都 610064
  • 收稿日期:2011-04-21 修回日期:2011-05-18 出版日期:2011-09-09 发布日期:2015-01-24

Asymmetric Hydrogenation of Aromatic Ketones Catalyzed by Achiral Monophosphine TPPTS-Stabilized Ru in PEG-Water

QIN Ruixiang1, WANG Jinbo1,2,a, XIONG Wei1, LIU Derong1, FENG Jian1, CHEN Hua2,b   

  1. 1College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; 2Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China
  • Received:2011-04-21 Revised:2011-05-18 Online:2011-09-09 Published:2015-01-24

摘要: 在聚乙二醇-400-水介质中, 以 (1S,2S)-1,2-二苯基乙二胺的磺酸钠盐为手性修饰剂, 考察了水溶性三 (间-磺酸钠苯基) 膦稳定的 Ru 催化苯乙酮及其衍生物的不对称加氢反应. 结果表明, 该催化剂体系具有良好的催化活性和对映选择性. 在优化反应条件下, 苯乙酮转化率和对映选择性分别为 100% 和 84.9%. 经正己烷萃取后, 催化剂即可从产物中分离出来, 并可重复使用多次.

关键词: 水溶性膦稳定的钌, 芳香酮, 不对称加氢, 芳香仲醇, 聚乙二醇-水

Abstract: PEG-400 was found to be a green and recyclable reaction medium for asymmetric hydrogenation of aromatic ketones catalyzed by achiral monophosphine TPPTS (P(m-C6H4SO3Na)3), stabilized ruthenium modified by (1S,2S)-DPENDS (DPENDS: disodium salt of sulfonated (1S,2S)-1,2-diphenyl-1,2-ethylene-diamine). A 84.9% ee was obtained for acetophenone under the optimized conditions. The resulting products can be easily separated from the catalyst by extraction with n-hexane. The catalyst immobilized on PEG-400 not only exhibits excellent activity and enantioselectivity but also can be recycled and reused several times without loss of activity and enantioselectivity.

Key words: TPPTS-stabilized ruthenium, aromatic ketone, asymmetric hydrogenation, aromatic sec-alcohol, polyethylene glycol-400-water