Synthesis of 2-aminobenzoxazoles using tetramethyl orthocarbonate or 1,1-dichlorodiphenoxymethane

J Org Chem. 2010 Nov 19;75(22):7942-5. doi: 10.1021/jo1017052. Epub 2010 Oct 25.

Abstract

The synthesis of 2-aminobenzoxazoles can be readily achieved by two versatile, one-pot procedures utilizing commercially available tetramethyl orthocarbonate or 1,1-dichlorodiphenoxymethane, an amine, and an optionally substituted 2-aminophenol. The reactions were conducted under mild conditions and provided 2-aminobenzoxazoles in modest to excellent yields. A variety of amines and substituted 2-aminophenols were used to investigate the scope of the reactions.

MeSH terms

  • Amines / chemistry*
  • Aminophenols / chemistry*
  • Benzoxazoles / chemical synthesis*
  • Benzoxazoles / chemistry
  • Catalysis
  • Hydrocarbons, Chlorinated / chemistry*
  • Methane / analogs & derivatives*
  • Methane / chemistry
  • Molecular Structure
  • Stereoisomerism

Substances

  • 1,1-dichlorodiphenoxymethane
  • Amines
  • Aminophenols
  • Benzoxazoles
  • Hydrocarbons, Chlorinated
  • 2-aminophenol
  • Methane