Chin. J. Org. Chem. ›› 2015, Vol. 35 ›› Issue (3): 603-609.DOI: 10.6023/cjoc201412057 Previous Articles     Next Articles



阳香华, 谢珍茗, 何军, 余林   

  1. 广东工业大学轻工化工学院 广州 510006
  • 收稿日期:2014-12-31 修回日期:2015-02-14 发布日期:2015-02-28
  • 通讯作者: 阳香华, 余林;
  • 基金资助:

    国家自然科学基金(Nos. 21407028, 21471037)以及广东省自然科学基金(No. 2014A030310449)资助项目.

Research Progress on Ammonia-Borane Based Direct Transfer Hydrogenation Reactions

Yang Xianghua, Xie Zhenming, He Jun, Yu Lin   

  1. School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006
  • Received:2014-12-31 Revised:2015-02-14 Published:2015-02-28
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21407028, 21471037) and the Natural Science Foundation of Guangdong Province (No. 2014A030310449).

Direct transfer hydrogenation reaction is a H transfer process from a hydrogen donor to a hydrogen acceptor without the presence of a catalyst——the so-called metal-free reaction. It's an idea elementary process for mechanistic study, but was rarely reported due to very high energy barriers. However, it is revealed both theoretically and experimentally that increase in polarity of the substrates can efficiently lower the energy barrier, meaning that polar hydrogen donor and hydrogen acceptors might make such reactions happen. Ammonia borane is well-known as a chemical hydrogen storage material with very high H content. In the meanwhile, it's an ideal polar hydrogen donor containing both hydridic and protic H atoms. Applying ammonia borane as the polar hydrogen donor and some polar hydrogen acceptor molecules such as imines, polarized olefins, aldehydes and ketones, direct transfer hydrogenation reaction occurred under mild conditions. The reaction scope, similarity and differences in mechanism are reviewed herein.

Key words: ammonia borane, direct transfer hydrogenation, reaction mechanism, green chemistry