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2-Pyrrolidinecarboxylic Acid Ionic Liquid as a Highly Efficient Organocatalyst for the Asymmetric One-Pot Mannich Reaction

Journal

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2010, Issue 3, Pages 515-522

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200901088

Keywords

Asymmetric synthesis; Ionic liquids; Organocatalysis; Enantioselectivity

Funding

  1. National Natural Science Foundation of China [20672061]
  2. Nankai University State Key Laboratory of Elemento-organic Chemistry

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A novel one-pot three-component asymmetric Mannich reaction using [EMIm][Pro] (1) as a catalyst has been developed. By employing this new reaction system, a variety of optically active beta-amino carbonyl compounds were synthesized in up to 99% yield with up to > 99 dr and > 99% ee The reaction conditions have been optimized and the mechanism for the asymmetric induction IS discussed

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