Efficient asymmetric synthesis of anti-aldols from bornanesultam derived boryl enolates
作者:Wolfgang Oppolzer、Philippe Lienard
DOI:10.1016/s0040-4039(00)79339-7
日期:1993.7
O-Borylation of N-propionylsultam 1 provides in situ boryl enolate 6 which, at -78-degrees-C in the presence of TiCl4, reacts with aliphatic, aromatic and alpha, beta-unsaturated aldehydes giving mostly crystalline, diastereomerically pure anti-aldols 3.