Chin. J. Org. Chem. ›› 2011, Vol. 31 ›› Issue (9): 1495-1498. Previous Articles     Next Articles

Notes

苯甘氨酰胺结晶诱导的动态动力学拆分

廖本仁1,2,安国成2,竹俊如1,杨帆*,1,汤杰1   

  1. (1华东师范大学化学系 上海 200062)
    (2上海华谊集团技术研究院 上海 200241)
  • 收稿日期:2010-11-15 修回日期:2011-03-07 发布日期:2011-04-14
  • 通讯作者: 杨帆 E-mail:fyang@chem.ecnu.edu.cn

Crystallization-Induced Dynamic Kinetic Resolution of Phenylglycine Amide

Liao Benren1,2 An Guocheng2 Zhu Junru1 Yang Fan*,1 Tang Jie1   

  1. (1 Department of Chemistry, East China Normal University, Shanghai 200062)
    (2 Shanghai Huayi Group Technology Research Institute, Shanghai 200241)
  • Received:2010-11-15 Revised:2011-03-07 Published:2011-04-14
  • Contact: Fan Yang E-mail:fyang@chem.ecnu.edu.cn

With substituted salicylaldehyde as racemization catalyst, crystallization-induced dynamic kinetic resolution of phenylglycine amide was successfully carried out in the presence of resolving agent. Under optimized conditions, the single-run resolution yield was upward 82% with enantiomeric excess higher than 99%. The resolving agent can be recycled, and the mother liquid which contains the racemization catalyst can be reused. The average yield of the three times recycling was up to 99% with ee>99%.

Key words: phenylglycine amide, dynamic kinetic resolution, 5-nitrosalicylaldehyde, mandelic acid