[EN] PROCESS FOR PREPARING OPTICALLY PURE 3-HYDROXY-PYRROLIDINE<br/>[FR] PROCEDE DE PREPARATION D'UNE 3-HYDROXY-PYRROLIDINE OPTIQUEMENT PURE
申请人:SAMSUNG FINE CHEMICALS CO LTD
公开号:WO2003097594A1
公开(公告)日:2003-11-27
The present invention relates to a method for preparing optically pure 3-hydroxy-pyrrolidine, more particularly to a novel method for preparing 3-hydroxy-pyrrolidine economically, conveniently and efficiently, by reacting optically active 3,4-epoxy-1-butanol with ammonia and an aldehyde compound to prepare 4-protected-imino-butane-1,3-diol, selectively activating a hydroxy group at C-1 and then converting an imino group to an amine group by acid simultaneously or consecutively and performing intramolecular cyclization in the presence of a base.
本发明涉及一种制备光学纯3-羟基吡咯烷的方法,更具体地说,涉及一种通过将光学活性的3,4-环氧-1-丁醇与氨和醛化合物反应,制备4-保护基亚胺丁-1,3-二醇,选择性激活C-1处的羟基,然后通过酸同时或连续地将亚胺基转化为胺基,并在碱存在下进行分子内环化,经济、方便、高效地制备3-羟基吡咯烷的新方法。