4.6 Article

Highly efficient synthesis of chiral quaternary 3-aminooxindoles promoted by zinc(II) chloride via Et2Zn-catalysed addition of Grignard reagents to isaltin-derived N-tert-butanesulfinyl ketimines

Journal

RSC ADVANCES
Volume 7, Issue 61, Pages 38216-38219

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra07692d

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Funding

  1. Chinese Academy of Sciences [XDB20000000]
  2. Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences

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A highly efficient and practical approach to chiral quaternary 3-aminooxindoles was developed via Et2Zn catalyzed diastereoselective addition of Grignard reagents to isaltin-derived N-tert-butanesulfinyl ketimines giving good to excellent yields and diastereoselectivities with broad substrates and reagent scopes promoted by zinc(II) chloride.

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