Organocatalytic Entry into 2,6-Disubstituted Aza-Achmatowicz Piperidinones: Application to (−)-Sedacryptine and Its Epimer
摘要:
Enantiomerically pure 2,6-disubstituted piperidinones were synthesized from furfural involving an organocatalyzed Mannich reaction, aza-Achmatowicz reaction, and an N-acyliminium ion-mediated coupling step. This approach was also successfully applied to a total synthesis of (-)-sedacryptine and one of its epimers.
Organocatalytic Entry into 2,6-Disubstituted Aza-Achmatowicz Piperidinones: Application to (−)-Sedacryptine and Its Epimer
摘要:
Enantiomerically pure 2,6-disubstituted piperidinones were synthesized from furfural involving an organocatalyzed Mannich reaction, aza-Achmatowicz reaction, and an N-acyliminium ion-mediated coupling step. This approach was also successfully applied to a total synthesis of (-)-sedacryptine and one of its epimers.