Acetylphosphonate as a surrogate of acetate or acetamide in organocatalyzed enantioselective aldol reactions

Org Lett. 2012 Jun 15;14(12):3174-7. doi: 10.1021/ol301270w. Epub 2012 May 31.

Abstract

Highly enantioselective aldol reactions of acetylphosphonates and activated carbonyl compounds was realized with cinchona alkaloid derived catalysts, in which the acetylphosphonate was directly used as an enolate precursor for the first time. The aldol product obtained was converted in situ to its corresponding ester or amide through methanolysis or aminolysis. The overall process may be viewed as formal highly enantioselective acetate or acetamide aldol reactions, which are very difficult to achieve directly with organocatalytic methods.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acetaldehyde / analogs & derivatives*
  • Acetaldehyde / chemistry
  • Acetamides / chemistry*
  • Acetates / chemistry*
  • Catalysis
  • Molecular Structure
  • Stereoisomerism

Substances

  • Acetamides
  • Acetates
  • phosphonoacetaldehyde
  • acetamide
  • Acetaldehyde