Synthesis of 5(6H)-phenanthridones using Diels-Alder reaction of 3-nitro-2(1H)-quinolones acting as dienophiles

Chem Pharm Bull (Tokyo). 2006 Feb;54(2):204-8. doi: 10.1248/cpb.54.204.

Abstract

Diels-Alder reactions of 3-nitro-2(1H)-quinolones with 1,3-butadiene derivatives were carried out to give the phenanthridone derivatives under both atmospheric and high pressure conditions. Furthermore, the reactivity of 3-substituted 2(1H)-quinolones acting as a dienophile with 2,3-dimethyl-1,3-butadiene was examined using molecular orbital (MO) calculation.

MeSH terms

  • Butadienes
  • Chromatography, Thin Layer
  • Indicators and Reagents
  • Magnetic Resonance Spectroscopy
  • Methylation
  • Nitro Compounds / chemical synthesis*
  • Phenanthridines / chemical synthesis*
  • Quinolones / chemical synthesis*
  • Spectrophotometry, Infrared

Substances

  • Butadienes
  • Indicators and Reagents
  • Nitro Compounds
  • Phenanthridines
  • Quinolones
  • 1,3-butadiene