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高等学校化学研究 ›› 2015, Vol. 31 ›› Issue (2): 203-207.doi: 10.1007/s40242-015-4412-z

• Articles • 上一篇    下一篇

Efficient Synthesis of α-Amino Acid Derivatives via Phase-transfer-catalyzed Directed Reductive Amination

ZHANG Xiaohua, YE Wenjing, WANG Kuanglei, TIAN Yongshou, XIAO Xiao   

  1. School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
  • 收稿日期:2014-10-29 修回日期:2014-12-10 出版日期:2015-04-01 发布日期:2015-01-19
  • 通讯作者: TIAN Yongshou, XIAO Xiao E-mail:yongshoutian988@163.com;xxiao1207@iccas.ac.cn
  • 基金资助:

    Supported by the Natural Science Foundation of China(No.21402127), Foundation of Liaoning Province Education Department(No.L2013381), PhD Research Startup Foundation of Liaoning Province(No.20131110), and Career Development Support Plan for Young and Middle-aged Teachers in Shenyang Pharmaceutical University.

Efficient Synthesis of α-Amino Acid Derivatives via Phase-transfer-catalyzed Directed Reductive Amination

ZHANG Xiaohua, YE Wenjing, WANG Kuanglei, TIAN Yongshou, XIAO Xiao   

  1. School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
  • Received:2014-10-29 Revised:2014-12-10 Online:2015-04-01 Published:2015-01-19
  • Contact: TIAN Yongshou, XIAO Xiao E-mail:yongshoutian988@163.com;xxiao1207@iccas.ac.cn
  • Supported by:

    Supported by the Natural Science Foundation of China(No.21402127), Foundation of Liaoning Province Education Department(No.L2013381), PhD Research Startup Foundation of Liaoning Province(No.20131110), and Career Development Support Plan for Young and Middle-aged Teachers in Shenyang Pharmaceutical University.

摘要:

An efficient phase-transfer-catalyzed directed reductive amination of α-keto esters was described using simple substituted benzyl amines as nitrogen source and K2CO3 as base at room temperature, giving a series of aliphatic α-amino acid derivatives in moderate to high yields(up to 99%). Preliminary study on this asymmetric process showed that cinchona-derived phase transfer catalyst was effective, affording the corresponding product in 13% e.e. and 40% yield.

关键词: Directed reductive amination, α-Amino acid, Phase transfer catalyst

Abstract:

An efficient phase-transfer-catalyzed directed reductive amination of α-keto esters was described using simple substituted benzyl amines as nitrogen source and K2CO3 as base at room temperature, giving a series of aliphatic α-amino acid derivatives in moderate to high yields(up to 99%). Preliminary study on this asymmetric process showed that cinchona-derived phase transfer catalyst was effective, affording the corresponding product in 13% e.e. and 40% yield.

Key words: Directed reductive amination, α-Amino acid, Phase transfer catalyst