Lanthanide(III) catalyzed aldol reactions of glyceraldehyde acetonide with ketene silyl acetals: Catalytic asymmetric route to monosaccharides
作者:Koichi Mikam、Masahiro Terada、Takeshi Nakai
DOI:10.1016/s0957-4166(00)86145-5
日期:——
The Pr-, Eu- and Ho(dppm)3 catalyzed aldol reactions of glyceraldehyde acetonide with ketene silyl acetals are described, where remarkably high anti-diastereofacial selection is achieved. Thus, the asymmetrc synthesis of 2-deoxy-D-ribonolactone and formal synthesis of 2-amino-2-deoxy-D-pentose by the lanthanide(III) catalyzed aldol reaction with ketene silyl acetals of acetate and alpha-chloroacetate, respectively are described.