作者:Amarender Manchoju、Rakesh G. Thorat、Sunil V. Pansare
DOI:10.1002/ejoc.201500985
日期:2015.9
An enantioselective synthesis of functionalized quaternary stereocenters was developed from amino alcohol derived (bromoalkylidene)morpholinones. Stereoselective cross-coupling of the morpholinones with arylboronic acids or alkyl trifluoroborates provided a variety of disubstituted alkylidenemorpholinones. A highly stereoselective Prins reaction of the cross-coupling products generated the target quaternary
从氨基醇衍生的(溴亚烷基)吗啉酮开发了功能化季立体中心的对映选择性合成。吗啉酮与芳基硼酸或三氟硼酸烷基酯的立体选择性交叉偶联提供了多种二取代的亚烷基吗啉酮。交叉偶联产物的高度立体选择性 Prins 反应生成了目标四元立体中心。Prins 产品很容易转化为各种具有四元立体中心的无环、对映体富集、功能化的构建块。