作者:Neha Malik、Paul Erhardt
DOI:10.1016/j.tetlet.2013.05.121
日期:2013.7
A novel approach for the syntheses of 6a-hydroxypterocarpans is reported. Its practicality is demonstrated by the synthesis of (±)-glycinol. The main feature is an intramolecular benzoin condensation catalyzed by nucleophilic carbenes to initiate assembly of the benzopyran and establish the 6a-hydroxy center. In addition, a one-pot method was developed to form an epoxide that facilitates subsequent
报道了一种合成6a-羟基紫果胶的新方法。(±)-甘氨醇的合成证明了其实用性。主要特征是亲核碳烯催化的分子内安息香缩合反应可引发苯并吡喃的组装并建立6a-羟基中心。另外,开发了一种一锅法形成环氧化物,该环氧化物有助于随后的环化反应,从而导致苯并呋喃和直接生产(±)-甘醇。