Synthesis and structure elucidation of three series of nitro-2-styrylchromones using 1D and 2D NMR spectroscopy.
2-Styrylchromones, although scarce in nature, constitute a group of oxygen heterocyclic compounds which have shown significant biological activities. New nitro-2-styrylchromones have been synthesised by the Baker-Venkataraman method, and the structure elucidation was accomplished using extensive 1D (1H, 13C) and 2D NMR spectroscopic studies (COSY, HSQC and HMBC experiments).
Barros
Ana I R N A
AI
Chemistry Department, University of Trás-os-Montes e Alto Douro, 5001-911 Vila Real, Portugal. abarros@utad.pt
Silva
Artur M S
AM
D002247:Carbon Isotopes; D002867:Chromones / Q000138:chemical synthesis* / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards*; D015394:Molecular Structure; D011522:Protons; D012015:Reference Standards; D013237:Stereoisomerism; D013343:Styrenes / Q000138:chemical synthesis* / Q000737:chemistry*
D002247:Carbon Isotopes; D002867:Chromones; D011522:Protons; D013343:Styrenes