4.0 Article

Stereoselective domino conjugate addition of Grignard reagents to lactones followed by reaction with activated alkenes catalyzed by ferrocenyl carbene ligands

Journal

TETRAHEDRON-ASYMMETRY
Volume 26, Issue 5-6, Pages 271-275

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2015.01.015

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Funding

  1. Slovak Research and Development Agency [APVV-0321-12]
  2. Slovak Grant Agency VEGA [1/0623/12]
  3. R&DOP - European Regional Development Fund [26240120025]

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Ferrocenyl phosphane-carbene ligands catalyze domino reactions composed of conjugate addition of Grignard reagents to alpha,beta-unsaturated lactone followed by enolate trapping with activated alkenes. The corresponding alpha,beta-disubstituted lactones were obtained in medium yields, but with high diastereomeric and enantiomeric purities up to 98:2 er. (C) 2015 Elsevier Ltd. All rights reserved.

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