A Simple Visualization of Double Bond Properties: Chemical Reactivity and UV Fluorescence

• Scott M. Grayson ^[1]
  1. [1] Tulane University

     Tulane University

     City of New Orleans, Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 89, Nº 7, 2012, págs. 925-927
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A simple, easily visualized thin-layer chromatography (TLC) staining experiment is presented that highlights the difference in reactivity between aromatic double bonds and nonaromatic double bonds. Although the stability of aromatic systems is a major theme in organic chemistry, the concept is rarely reinforced “visually” in the undergraduate curriculum. With the use of a TLC plate to immobilize a range of unsaturated hydrocarbons, their UV fluorescence properties and their susceptibility to oxidation, using a permanganate stain, can be easily and rapidly visualized in a classroom setting.