Asymmetric N‐Allylic Alkylation of Hydrazones with Morita–Baylis–Hillman Carbonates

Abstract The first asymmetric N ‐allylic alkylation of hydrazones with Morita‐Baylis–Hillman (MBH) carbonates catalyzed by modified Cinchona alkaloids has been developed, affording N ‐substituted hydrazones in good yields with exclusive regioselectivities and excellent enantioselectivities. Subsequent transformations of the allylic alkylation products led to synthetically useful pyrazolidinones. magnified image