Convenient synthesis of an enantiomerically pure bicyclic proline and its N-oxyl derivatives
摘要:
An enantiomerically pure bicyclic proline derivative was prepared by cis-selective allylation and diastereospecific intramolecular alkylation starting from D-pipecolinic acid. in addition, enantiomerically pure azabicyclo N-oxyls derived from the bicyclic proline worked well as catalysts for the enantioselective electrooxidation of racemic sec-alcohols to afford optically active sec-alcohols in moderate enantiomeric purity. (C) 2008 Elsevier Ltd. All rights reserved.
An enantiomerically pure bicyclic proline derivative was prepared by cis-selective allylation and diastereospecific intramolecular alkylation starting from D-pipecolinic acid. in addition, enantiomerically pure azabicyclo N-oxyls derived from the bicyclic proline worked well as catalysts for the enantioselective electrooxidation of racemic sec-alcohols to afford optically active sec-alcohols in moderate enantiomeric purity. (C) 2008 Elsevier Ltd. All rights reserved.
β-Trichloroacetylation of Cyclic Amines: Application to Synthesis of Chiral Azabicyclo-N-oxyls