A process for the preparation of diols by a Lewis acid-catalysed aldehyde addition reaction on hydroxyalkynes followed by hydrogenation is described. The process provides a wide range of diols from simple, readily available starting materials. In particular the process is suitable for preparing chiral 1,4-diols suitable for the preparation of chiral phospholane ligands for use in asymmetric catalysis.
本文介绍了一种通过
路易斯酸催化的羟基炔醛加成反应制备二元醇,然后进行氢化的工艺。该工艺可利用简单易得的起始原料制备多种二元醇。该工艺尤其适用于制备手性 1,4 二醇,适合制备用于不对称催化的手性
磷烷
配体。