Two alternative synthetic approaches to a variety of enantioenriched 6-arylated piperidin-2-ones have been developed. The first one is based on the hydrogenation of suitably arylated chiral cyclic enehydrazides. The second approach relies on the asymmetric catalytic hydrogenation of the corresponding N-alkylated precursors. (C) 2012 Elsevier Ltd. All rights reserved.
Asymmetric Synthesis of 2-Heteroaryl Cyclic Amines: Total Synthesis of (-)-Anabasine
A new and concise method for the synthesis of enantioenriched 2-heteroarylcyclicamines was developed through an intramolecular chirality transfer. The influence of the nature