Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 12, Issue 40, Pages 8094-8099Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ob01336k
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A novel, efficient, time-saving and reliable radiolabeling procedure via nucleophilic substitution with [F-18] fluoride is described. Different radiolabeled aliphatic and aromatic compounds were prepared in high radiochemical yields simply by heating of quaternary anilinium, diaryliodonium and triarylsulfonium [F-18] fluorides in suitable solvents. The latter were obtained via direct elution of F-18(-) from an anion exchange resin with alcoholic solutions of onium precursors. Neither azeotropic evaporation of water, nor a base, nor any other additives like cryptands or crown ethers were necessary. Due to its simplicity this method should be highly suitable for automated radiosyntheses, especially in microfluidic devices.
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