Tin(ii) chloride assisted synthesis of N-protected γ-amino β-keto esters through semipinacol rearrangement
作者:Anupam Bandyopadhyay、Neha Agrawal、Sachitanand M. Mali、Sandip V. Jadhav、Hosahudya N. Gopi
DOI:10.1039/c0ob00199f
日期:——
A facile synthetic route for the preparation of N-protected γ-amino β-keto esters from amino aldehydes and ethyl diazoacetate is described. The two component coupling is facilitated by tin(II) chloride followed by semipinacol rearrangement leading to the product in quantitative yield. The reaction is mild, instantaneous and compatible with Boc-, Fmoc- and Cbz-amino protecting groups.