Synthesis of Chiral Spiro-Aziridine Oxindoles via Aza-Corey–Chaykovsky Reaction of Isatin Derived <i>N-tert</i>-Butanesulfinyl Ketimines
作者:Saumen Hajra、Sk Mohammad Aziz、Bibekananda Jana、Prosenjit Mahish、Dhiraj Das
DOI:10.1021/acs.orglett.5b03564
日期:2016.2.5
A general and direct strategy for the synthesis of chiral spiro-aziridine oxindoles has been developed via an aza-Corey–Chaykovsky reaction of isatin-derived N-tert-butanesulfinyl ketimines with excellent selectivity (dr = 98:2 to >99:1). The method is explored for the synthesis of chiral 3-substituted spiro-aziridine oxindoles with high (2S,3S)-selectivity over (2S,3R).
通过具有良好选择性的靛红衍生的N-叔-丁烷亚磺酰基酮亚胺的aza-Corey-Chaykovsky反应,已经开发了一种合成手性螺-氮丙啶-羟吲哚的通用且直接的策略(dr = 98:2至> 99:1) 。该方法探讨了手性3-取代的螺-氮丙啶羟吲哚的合成与高(2小号,3小号)-在(2选择性小号,3 - [R )。