Domino Michael/Mannich Annulation Reaction of N-Sulfinyl Lithiodienamines

Abstract
The domino Michael/Mannich (DMM) annulation reaction between an N-sulfinyl lithiodienamine and an electrophilic alkene is developed for the synthesis of chiral 2-amino cyclohexenes, a key building block in asymmetric synthesis. The DMM reaction proceeds at low temperature while maintaining the stereochemical fidelity. The product functionalized amino cyclohexenes, here obtained in 55–82% yield with diastereomeric ratios as high as >19:1.
Funding Information
  • Division of Chemistry (CHE-1665145)
  • Temple University

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