A highly diastereoselective aldol reaction of dicobalt hexacarbonyl propynal complex and uncomplexed propynal: A stereoselective divergent synthesis of (±)-PS-5 and (±)-6-Epi-PS-5
作者:Chisato Mukai、Osamu Kataoka、Miyoji Hanaoka
DOI:10.1016/0040-4039(91)80532-b
日期:1991.12
The aldol reaction of cobalt complexes propynal 1 with O-silyl keteneO,S-acetals 3 gave the syn-products exclusively, while the uncomplexed propynal 2, the corresponding anti-compounds. A successful application of these stereoselective reactions to a synthesis of (±)-PS-5 and (±)-6-epi-PS-5 is described.