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Photocycloaddition of 5,7-Dimethoxycoumarin to 5-Fluorouracil

  • Shim, Sang-Chul (Department of Chemistry, Korea Advanced Institute of Science) ;
  • Ra, Choon-Sup (Department of Chemistry, Korea Advanced Institute of Science) ;
  • Chae, Kyu-Ho (Department of Chemical Engineering, Chonnam National University)
  • Published : 1980.12.30

Abstract

$C_4$-Photocycloaddition of 5,7-dimethoxycoumarin(DMC) to 5-fluorouracil(5-FU) was studied in frozen aqueous solution. The major photoproduct was diagnosed and isolated by TLC and column chromatography. The structure of isolated photoproduct was identified as a $C_4$-cycloaddition product of DMC and 5-FU by the characteristics of its UV, IR, NMR, mass spectra, elemental analysis, and photosplitting.

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