Highly stereospecific arylation of (S)proline and complementary highly diastereoselective reduction of the α-amino ketone. Asymmetric synthesis of (1S,2′S)- and (1R,2′S)-phenyl(2′-pyrrolidinyl)methanol
Abstract
Both optically active threo- and erythro-phenyl(2′-pyrrolidinyl)methanol (93–100% enantiomeric excess, 100% diastereoisomeric excess) were synthesised from (S)-proline by a stereospecific arylation and the subsequent complementary diastereoselective reduction of the α-amino ketone.