A practical asymmetric synthesis of α-methyl α-amino acids using a chiral Cu–salen complex as a phase transfer catalyst
作者:Yuri N Belokon'、R.Gareth Davies、Michael North
DOI:10.1016/s0040-4039(00)01247-8
日期:2000.9
The asymmetric C-alkylation of N-benzylidene alanine methyl ester has been achieved using a copper(II) (salen) complex as an asymmetric phase transfer catalyst and provides a practicalsynthesis of α-methyl α-aminoacids with up to 86% enantiomeric excess.