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Planta Med 1973; 24(6): 107-111
DOI: 10.1055/s-0028-1099476
DOI: 10.1055/s-0028-1099476
SEPARATION AND PROTECTION OF π–ELECTRON–RICH COMPOUNDS ON CAFFEINE–IMPREGNATED SILICAGEL LAYERS
1 Paper presented at the „20. Tagung der Gesellschaft für Arzneipflanzenforschung” Helsinki, Finland, July 20.–29.1972.Weitere Informationen
Publikationsverlauf
Publikationsdatum:
14. Januar 2009 (online)
Abstract
On the basis of interactive forces between caffeine and μ–electron systems in aromatic hydrocarbons and in polyacetylenes a method has been developed, by which a better separation occurs when 10 per cent caffeine is added to silicagel than on silicagel alone. Furthermore, the interaction between the caffeine and the μ–electron systems means that less destruction occurs compared to silicagel layers without caffeine.