作者:Katsuhiko Iseki、Daisuke Asada、Yoshichika Kuroki
DOI:10.1016/s0022-1139(99)00033-0
日期:1999.7
The stereoselective synthesis of α,α-difluoro-β-hydroxyketones of high enantiomeric purity is described starting from optically active α,α-difluoro-β-hydroxy esters. The esters were converted to the corresponding N-methoxy-N-methyl amides, which were treated with Grignard and organolithium reagents to provide the α,α-difluoro-β-hydroxyketones with up to 100% ee.
从光学活性的α,α-二氟-β-羟基酯开始描述了高对映体纯度的α,α-二氟-β-羟基酮的立体选择性合成。将酯转化为相应的N-甲氧基-N-甲基酰胺,将其用格利雅(Grignard)和有机锂试剂处理,以提供具有高达100%ee的α,α-二氟-β-羟基酮。