Chin. J. Org. Chem. ›› 2013, Vol. 33 ›› Issue (04): 848-853.DOI: 10.6023/cjoc201301080 Previous Articles     Next Articles

Articles

L-脯氨酸衍生的手性N,P-配体的合成及其在不对称1,3-偶极环加成反应中的应用

陈虹, 陈谦   

  1. 哈尔滨工业大学基础与交叉科学研究院 城市水资源与水环境国家重点实验室 哈尔滨 150080
  • 收稿日期:2013-01-31 修回日期:2013-02-26 发布日期:2013-03-01
  • 通讯作者: 陈谦 E-mail:chenqian@hit.edu.cn
  • 基金资助:

    国家自然科学基金(No. 20902015)和中央高校基础研究基金(No. 2010055)资助项目.

Synthesis of Chirl N,P-ligands Derived from L-Proline and Its Application to 1,3-Dipolar Cycloaddition

Chen Hong, Chen Qian   

  1. State Key Laboratory of Urban Water Resource and Environment & Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080
  • Received:2013-01-31 Revised:2013-02-26 Published:2013-03-01
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 20902015) and the Fundamental Research Funds for the Central Universities (No. 2010055).

Aminophosphine 2 was obtained by deprotection of amidophosphine 1, which was derived from L-proline. Deprotonation of aminophosphine 2 with n-BuLi, and then being captured by 2-MeO-pyridine gave chiral pyridyl N,P-ligands 4. Reaction of aminoalcohol and diethyl carbonate afforded oxazolidione 6, which was converted to compounds 7 by the reaction with triethyloxonium tetrafluoroborate. Chiral N,P-ligands 8 were obtained by the reaction of compounds 7 with aminophosphine 2. Two kinds of chiral N,P-ligands shown excellent catalytic activity in Ag(I) catalytic asymmetric 1,3-dipolar cycloaddition, and up to 93% yield and 15% ee were obtained.

Key words: L-proline, chiral N,P-ligands, asymmetric 1,3-dipolar cycloaddition