A Mild and Chemoselective Method for the Reduction of Conjugated Isoxazolines to β-Hydroxy Ketones
作者:Jeffrey W. Bode、Erick M. Carreira
DOI:10.1021/ol015885d
日期:2001.5.1
A new procedure for the selective reduction of conjugated Delta(2)-isoxazolines to the corresponding unsaturated beta-hydroxy ketones is described. The use of SmI(2) as the reducing agent and B(OH)(3) to hydrolyze the resulting imine results in a mild, convenient, and chemoselective protocol for this otherwise difficult transformation and complements existing methodology for the preparation of beta-hydroxy
描述了一种选择性还原共轭Delta(2)-异恶唑啉为相应的不饱和β-羟基酮的新程序。使用SmI(2)作为还原剂和B(OH)(3)水解所得的亚胺可产生温和,方便和化学选择性的方案,以解决这种难以转化的问题,并补充了现有的制备β-羟基的方法酮通过一氧化氮。