Selected article for: "column chromatography and silica gel column chromatography"
Author: Ouahrouch, Abdelaaziz; Taourirte, Moha; Schols, Dominique; Snoeck, Robert; Andrei, Graciela; Engels, Joachim W.; Lazrek, Hassan B.
Title: Design, Synthesis, and Antiviral Activity of Novel Ribonucleosides of 1,2,3-Triazolylbenzyl-aminophosphonates
  • Document date: 2015_11_17
    • ID: 25dwlzpy_18
    Snippet: Reactions were carried out in a microwave oven model AVM510/WP/WH. Reactions were monitored by thin layer chromatography (TLC) on precoated silica gel 60 F254 (Merck, Darmstadt, Germany); UV light was used for visualization of the spots. All products were purified by column chromatography on silica gel (100-200 mesh; Merck). 1 C NMR spectra were recorded on a Bruker 300 and 75 MHz spectrometer, respectively, SiMe 4 was used as internal standard. .....
    Document: Reactions were carried out in a microwave oven model AVM510/WP/WH. Reactions were monitored by thin layer chromatography (TLC) on precoated silica gel 60 F254 (Merck, Darmstadt, Germany); UV light was used for visualization of the spots. All products were purified by column chromatography on silica gel (100-200 mesh; Merck). 1 C NMR spectra were recorded on a Bruker 300 and 75 MHz spectrometer, respectively, SiMe 4 was used as internal standard. Chemical shifts are given in ppm and coupling constants (J) in MHz and multiplicity is reported as s (singlet), d (doublet), t (triplet), q (quartet), and m (multiplet). Mass spectra were produced by ESI/MS and MALDI-TOF-MS.

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