Asymmetric synthesis of functionalized cyclohexanes bearing five stereocenters via a one-pot organocatalytic Michael-Michael-1,2-addition sequence

Chem Commun (Camb). 2014 Jul 4;50(52):6853-5. doi: 10.1039/c4cc01885k.

Abstract

A highly stereoselective one-pot procedure involving an enantioselective Michael addition promoted by low loading of an amino-squaramide catalyst followed by an achiral base catalyzed domino Michael-Knoevenagel-type 1,2-addition sequence provides efficient access to fully substituted cyclohexanes bearing five contiguous stereogenic centers in good yields (68-86%) and excellent stereoselectivities (>30 : 1 dr and 96-99% ee).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Crystallography, X-Ray
  • Cyclohexanes / chemical synthesis*
  • Models, Molecular
  • Molecular Structure
  • Spiro Compounds / chemical synthesis*
  • Stereoisomerism

Substances

  • Cyclohexanes
  • Spiro Compounds