Conjugate addition of amides to α,β-unsaturated esters by CsF-Si(OEt)4 system
作者:Kyo Han Ahn、Seok Jong Lee
DOI:10.1016/s0040-4039(00)73184-4
日期:1994.3
The conjugate addition of amides to α,β-unsaturatedesters proceeds efficiently with an equimolar amount of Si(OEt)4 and a catalytic amount of CsF to afford the corresponding N-substituted amides.
A series of cylic diazoamides and diazoamines were synthesized. Treatment of these cylic diazoamides and diazoamines with a catalytic amount of rhodium(ll) acetate furnished the corresponding cyclic enamides and enamines,respectively. Interestingly, cyclic diazoamines produced stereoselectively Z-enamines.