Abstractmagnified imageAn efficient, organocatalytic enantioselective synthesis of N‐arylsulfonyl α‐amino nitriles from the corresponding α‐amido sulfones has been developed. This quinine‐catalyzed Strecker reaction provides the corresponding cyanated products in good yields and enantioselectivities.
A Convenient Synthesis ofN‐Boc‐Protected α‐Aminonitriles from α‐Amidosulfones
摘要:
Synthesis of N-Boc-protected alpha-aminonitriles starting from N-Boc-protected alpha-aminosulfones is described. Treatment of the sulfone with two equivalents of potassium cyanide in 2-propanol or dichloromethane-H2O under phase transfer condition affords crystalline N-Boc-protected alpha-aminonitriles in good yield. Hydrolysis of the aminonitriles provides a convenient access to racemic a-amino acids.