Synthesis 2019; 51(02): 463-469
DOI: 10.1055/s-0037-1610824
paper
© Georg Thieme Verlag Stuttgart · New York

Asymmetric Synthesis of Adamantyl GABA Analogues

Anastasiya E. Sibiryakova*
Department of Organic Chemistry, Samara State Technical University, Samara 443100, Molodogvardeyskaya st. 244, Russian Federation   Email: hom92_92@mail.ru   Email: shirv@mail.ru
,
Vadim A. Shiryaev*
Department of Organic Chemistry, Samara State Technical University, Samara 443100, Molodogvardeyskaya st. 244, Russian Federation   Email: hom92_92@mail.ru   Email: shirv@mail.ru
,
Alexander N. Reznikov
,
Anastasiya A. Kabanova
,
Yuri N. Klimochkin
› Author Affiliations
We gratefully acknowledge the financial support of the Russian Science Foundation, grant 18-13-00447.
Further Information

Publication History

Received: 14 July 2018

Accepted after revision: 01 August 2018

Publication Date:
01 October 2018 (online)


Abstract

An efficient synthesis of (R)- and (S)-4-amino-3-(adamant-1-yl)butyric acids and (R)- and (S)-4-(adamant-1-yl)pyrrolidin-2-ones is presented. The synthetic strategy is based on asymmetric Michael addition of diethyl malonate to 1-(adamant-1-yl)-2-nitroethene using available Ni(II) complex as the catalyst. The procedures provide good to high enantioselectivity of Michael addition to sterically hindered nitroalkene and good yields of (R)- and (S)-enantiomers of 3-adamantyl substituted GABA.

Supporting Information