有机化学 ›› 2013, Vol. 33 ›› Issue (04): 848-853.DOI: 10.6023/cjoc201301080 上一篇    下一篇

研究论文

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).

L-脯氨酸衍生而来的酰胺膦类化合物1, 经脱去保护基得到的氨基膦2, 用正丁基锂处理后, 用2-甲氧基吡啶类化合物捕获, 得到一类吡啶型的手性N,P-配体4; 氨基醇与碳酸二乙酯生成的噁唑啉酮6, 与四氟硼酸三乙氧基鎓盐反应制得的乙氧基噁唑啉7直接与氨基膦2反应, 合成了噁唑啉型手性N,P-配体8. 将两类手性N,P-配体应用于Ag(I)催化的1,3-偶极环加成反应, 通过对反应条件进行优化, 发现手性N,P-配体与AgOTf所形成的催化剂能很好地催化1,3-偶极环加成反应, 最高可以以93%的收率获得环加成产物, ee值最高可以达到15%.

关键词: L-脯氨酸, 手性N,P-配体, 1,3-偶极环加成

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