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 ketene O,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.
钴配合物丙醛1与O-甲硅烷基烯酮O,S-乙缩醛3的醛醇缩合反应仅产生合成产物,而未配合的丙醛2即相应的反化合物。描述了将这些立体选择性反应成功应用于(±)-PS-5和(±)-6-epi-PS-5的合成。