Isolation and structures of two new compounds from the essential oil of Brazilian propolis

Chem Pharm Bull (Tokyo). 2001 Sep;49(9):1207-9. doi: 10.1248/cpb.49.1207.

Abstract

Two new and seven known compounds, including terpenoids and aromatic compounds, were isolated from the essential oil of Brazilian propolis. The structures of the new compounds were elucidated as 2,2-dimethyl-8-prenyl-6-vinylchromene (1) and 2,6-diprenyl-4-vinylphenol (2) on the basis of spectroscopic analyses.

MeSH terms

  • Benzopyrans / chemistry*
  • Brazil
  • Hydrocarbons, Aromatic / chemistry
  • Hydrocarbons, Aromatic / isolation & purification
  • Magnetic Resonance Spectroscopy
  • Oils, Volatile / chemistry*
  • Phenols / chemistry*
  • Propolis / chemistry*
  • Spectrometry, Mass, Fast Atom Bombardment
  • Spectrophotometry, Ultraviolet
  • Terpenes / chemistry
  • Terpenes / isolation & purification

Substances

  • 2,2-dimethyl-8-prenyl-6-vinylchromene
  • 2,6-diprenyl-4-vinylphenol
  • Benzopyrans
  • Hydrocarbons, Aromatic
  • Oils, Volatile
  • Phenols
  • Terpenes
  • Propolis