Chinese Journal of Organic Chemistry ›› 2022, Vol. 42 ›› Issue (11): 3693-3703.DOI: 10.6023/cjoc202204047 Previous Articles     Next Articles

ARTICLES

甲醇为氢源的α-芳基亚胺酸酯不对称转移氢化反应

王婷a, 陈景超a,*(), 王轮a, 王喆婷a, 樊保敏a,b,*()   

  1. a云南民族大学 民族药资源化学国家民委-教育部重点实验室 昆明 650500
    b云南民族大学化学与环境学院 昆明 650500
  • 收稿日期:2022-04-18 修回日期:2022-07-11 发布日期:2022-08-10
  • 通讯作者: 陈景超, 樊保敏
  • 基金资助:
    国家自然科学基金(21961045); 国家自然科学基金(22061048)

Asymmetric Transfer Hydrogenation of α-Aryl Amidates Using Methanol as Hydrogen Source

Ting Wanga, Jingchao Chena(), Lun Wanga, Zheting Wanga, Baomin Fana,b()   

  1. aKey Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500
    bSchool of Chemistry and Environment, Yunnan Minzu University, Kunming 650500
  • Received:2022-04-18 Revised:2022-07-11 Published:2022-08-10
  • Contact: Jingchao Chen, Baomin Fan
  • Supported by:
    National Natural Science Foundation of China(21961045); National Natural Science Foundation of China(22061048)

As a kind of amino acid derivatives, chiral arylglycine not only has very important application value in the field of organic synthesis, but also serves as the key structure of many chiral drugs and biologically active compounds. A practical and economical method for the preparation of chiral α-arylglycines is reported herein. By using methanol as the hydrogen source, a series of chiral α-arylglycine derivatives were prepared by asymmetric transfer hydrogenation of α-aryl imine esters with Pd/Zn co-catalyzed system. By switching the hydrogen source to deuterated methanol, a series of chiral deuterated a-arylglycine derivatives were obtained. The catalytic system featured with good substrate suitability, and the product was obtained in up to 93% yield with up to 92% enantioselectivity, and the deuteration incorporation rate is up to 94%. The present method has provided an efficient and economic method for the synthesis of valuable deuterium-labeled chiral amino acids.

Key words: methanol, imino acid, deuterium amino acid, asymmetric transfer hydrogenation