Synthesis 2015; 47(14): 2063-2072
DOI: 10.1055/s-0034-1380203
paper
© Georg Thieme Verlag Stuttgart · New York

Highly Enantioselective Michael Addition of Nitroalkanes to Enones and Its Application in Syntheses of (R)-Baclofen and (R)-Phenibut

Autor*innen

  • Xing-Tao Guo

    Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. of China, Fax: +86(21)64252011   eMail: xinyanwu@ecust.edu.cn
  • Jie Shen

    Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. of China, Fax: +86(21)64252011   eMail: xinyanwu@ecust.edu.cn
  • Feng Sha*

    Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. of China, Fax: +86(21)64252011   eMail: xinyanwu@ecust.edu.cn
  • Xin-Yan Wu*

    Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. of China, Fax: +86(21)64252011   eMail: xinyanwu@ecust.edu.cn
Weitere Informationen

Publikationsverlauf

Received: 23. Januar 2015

Accepted after revision: 22. März 2015

Publikationsdatum:
19. Mai 2015 (online)


Graphical Abstract

Abstract

A highly enantioselective Michael addition of nitroalkanes to α,β-unsaturated ketones was developed. In the presence of a chiral primary amine–thiourea catalyst based on dehydroabietic amine, γ-nitro ketones were obtained with excellent enantioselectivities (up to 99% ee) and in up to 96% yield. This protocol was successfully applied in asymmetric syntheses of (R)-baclofen and (R)-phenibut with high yields and excellent enantioselectivities.

Supporting Information