Enantioselective synthesis of substituted pyrans via amine-catalyzed Michael addition and subsequent enolization/cyclisation

Chem Commun (Camb). 2012 Jun 7;48(45):5590-2. doi: 10.1039/c2cc31445b. Epub 2012 Apr 24.

Abstract

An organocatalytic construction of optically enriched substituted pyran derivatives via amine-catalyzed Michael addition and subsequent enolization/cyclisation has been described starting from electronically poor alkenes. Functionalized pyrans were obtained in high enantioselectivities (up to 96%) and good yields (up to 90%) having three contiguous chiral centers.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkenes / chemical synthesis
  • Alkenes / chemistry*
  • Amines / chemical synthesis
  • Amines / chemistry*
  • Catalysis
  • Cyclization
  • Pyrans / chemical synthesis*
  • Pyrans / chemistry
  • Stereoisomerism

Substances

  • Alkenes
  • Amines
  • Pyrans