4.3 Article

FACILE THREE-COMPONENT SYNTHESIS OF SPIROOXINDOLEPYRROLOLINE RING SYSTEMS VIA 1,3-DIPOLAR CYCLOADDITION WITH 1,4-NAPHTHOQUINONE

Journal

SYNTHETIC COMMUNICATIONS
Volume 41, Issue 22, Pages 3280-3288

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/00397911.2010.517413

Keywords

alpha-Amino acids; 1,3-dipolar cycloaddition; isatin; 1,4-naphthoquinone

Funding

  1. Natural Science Foundation of Jiangsu Province [BK2006048]
  2. Nature Science Key Basic Research of Jiangsu Province for Higher Education [06KJA15007]
  3. National Natural Science Foundation of China [20472062, 20672079]

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1,3-Dipolar cycloadditions involving 1,4-naphthoquinone and an azomethine ylide generated from a-amino acids and isatins have been used in this reaction to afford the pyrrolidine-2-spiro-3'-oxindole 4 or 5 with moderate to excellent yields.

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