PMID: 26781920DOI: 10.1021/acs.lett.5b03564Jan 20, 2016Paper
Synthesis of Chiral Spiro-Aziridine Oxindoles via Aza-Corey-Chaykovsky Reaction of Isatin Derived N-tert-Butanesulfinyl Ketimines
Organic Letters
Saumen HajraDhiraj Das
Abstract
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).
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Sep 23, 2016·The Journal of Organic Chemistry·Zhongzhong TangJian Li
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