作者:Santiago Dı́az-Oltra、Juan Murga、Eva Falomir、Miguel Carda、J.Alberto Marco
DOI:10.1016/j.tet.2004.02.003
日期:2004.3
A stereoselective synthesis of the naturally occurring, α,β-unsaturated lactone anamarine is described. The key step was a highly stereoselective aldol reaction of a protected erythrulose derivative with a chiral aldehyde. Another relevant step was an asymmetric aldehyde allylation with a chiral allylborane. The lactone ring was made by means of a ring-closing metathesis.
描述了天然存在的α,β-不饱和内酯阿马林的立体选择性合成。关键步骤是受保护的赤藓糖衍生物与手性醛的高度立体选择性醛醇缩合反应。另一个相关步骤是与手性烯丙基硼烷的不对称醛烯丙基化。内酯环通过闭环复分解反应制得。