β,γ-Unsaturated α-amino ester derivatives by amination of γ-silylated α,β-unsaturated esters
作者:M.Antonietta Loreto、Federica Pompei、Paolo A. Tardella、Daniela Tofani
DOI:10.1016/s0040-4020(97)10045-x
日期:1997.11
The reactions of γ-silylated α,β-unsaturatedesters 3a-e and 6 with NsONHCO2Et and CaO, produce β,γ-unsaturated N-(ethoxycarbonyl) α-amino esters 4a-e and 8, isolated in 38–66 % yield, through addition of (ethoxycarbonyl)aminic function on the double bond and silyl group elimination. The reactivity increases in presence of α-substituents.