催化学报 ›› 2012, Vol. 33 ›› Issue (4): 717-722.DOI: 10.3724/SP.J.1088.2012.11105

• 研究论文 • 上一篇    下一篇

多相双金属 Pt-Sn/γ-Al2O3 催化的胺 N-烷基化反应合成仲胺和叔胺

赫巍, 何松波, 孙承林, 吴凯凯, 王连弟, 余正坤*   

  1. 中国科学院大连化学物理研究所, 辽宁大连 116023
  • 收稿日期:2011-11-07 修回日期:2011-11-28 出版日期:2012-04-13 发布日期:2015-09-09

Heterogeneous Bimetallic Pt-Sn/γ-Al2O3 Catalyzed N-Alkylation of Amines: Efficient Synthesis of Secondary and Tertiary Amines

HE Wei, HE Songbo, SUN Chenglin, WU Kaikai, WANG Liandi, YU Zhengkun*   

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2011-11-07 Revised:2011-11-28 Online:2012-04-13 Published:2015-09-09

摘要: 基于借氢策略、醇为烷基化试剂的胺的 N-烷基化反应是合成胺类化合物的绿色途径. 在无外加氢源条件下, 多相双金属 Pt-Sn/γ-Al2O3 催化剂可高效催化醇为烷基化试剂的伯 (仲) 胺的 N-烷基化反应合成仲 (叔) 胺, 反应副产物为水与极少量亚胺. 催化体系的底物适应性好, 目标产物收率高; 催化剂可以循环使用, 具有潜在的工业化应用前景.

关键词: 铂, 锡, 氧化铝, 负载型催化剂, 借氢策略, 多相催化, N-烷基化, 胺,

Abstract: N-Alkylation of amines with alcohols through a borrowing hydrogen strategy is a green route to amines. Heterogeneous bimetallic Pt-Sn/γ-Al2O3 catalyzed the reactions of primary (secondary) amines with alcohols in the absence of external hydrogen source, efficiently affording secondary (tertiary) amines with water and a small amount of imines as the by-products. Various functional groups in the substrates were tolerated in the catalytic system. The Pt-Sn/γ-Al2O3 catalyst was easily recycled, suggesting its potential application in the production of secondary and tertiary amines.

Key words: platinum, tin, alumina, supported catalyst, borrowing hydrogen, heterogeneous catalysis, N-alkylation, amine, alcohol