Preparation of ฮฒ-aminoesters from ketene
โ
Alan.R. Katritzky; N. Shobana; Philip A. Harris
๐
Article
๐
1990
๐
Elsevier Science
๐
French
โ 283 KB
## Abetmet: A wide variety ~&aminoe&ers are prepa& in good yields by the reaction c$ lithium ester enolates derived from ketene silyl acetals with N-(alkylamino)benzotriazoles. The seco&uy fl-aminoesters readily qyclize to &tactuma @azetidinones) on depn3tonation. &Aminoacids and their derivatives