Efficient Asymmetric Synthesis of 1-Cyano-tetrahydroisoquinolines from Lipase Dual Activity and Opposite Enantioselectivities in α-Aminonitrile Resolution
Dual promiscuous racemization/amidation activities of lipases leading to efficient dynamic kinetic resolution protocols of racemic α‐aminonitrile compounds are described. α‐Amidonitrile products of high enantiomeric purity could be formed in high yields. Several lipasesfrom different sources were shown to exhibit the dual catalytic activities, where oppositeenantioselectivities could be recorded