• Title/Summary/Keyword: cycloaddition

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Cycloaddition Reaction on 1,4,5,8-Tetraazaphenanthrene Photoexcited Triplet State to Some Olefins

  • Park, Seung-Ki;Shim, Sang-Chul
    • Bulletin of the Korean Chemical Society
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    • v.8 no.1
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    • pp.27-30
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    • 1987
  • Photocycloaddition of 1,4,5,8-tetraazaphenanthrene to olefins proceeds through a biradical triplet-state intermediate as proven by the photoproduct stereochemistry, quantum yield measurements, sensitization, quenching, and fluorescence and phosphorescence quenching studies.