Rapid and Stereochemically Flexible Synthesis of Polypropionates: Super-Silyl-Governed Aldol Cascades
作者:Patrick B. Brady、Hisashi Yamamoto
DOI:10.1002/anie.201108325
日期:2012.2.20
Polypropionates made EZ: The E/Z geometry of tris(trimethylsilyl)silyl super silyl enol ethers derived from propionaldehyde controls diastereoselectivity in the aldehyde crossed‐aldol reaction. These silyl enol ethers can participate in polyaldol cascade reactions, thus allowing the one‐pot synthesis of four different dipropionate stereotetrads (see scheme), and polyketides bearing up to five contiguous
聚丙制成EZ:该ë / ž三(三甲基硅烷基)甲硅烷基超级的几何甲硅烷基烯醇醚从醛交叉醛醇缩合反应的控制丙醛衍生非对映选择性。这些甲硅烷基烯醇醚可以参与聚醛醇级联反应,从而允许一锅合成四种不同的二丙酸酯立体四分体(见方案),以及带有多达五个连续立体中心的聚酮化合物。